Altice USA (ATUS) 10-K 6 Mar 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Feb. 16, 2018	Jun. 30, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	Altice USA, Inc.
Entity Central Index Key	1,702,780
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2017
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 3,712,484,222
Common Class A
Class of Stock [Line Items]
Entity Common Stock, Shares Outstanding		246,982,292
Common Class B
Class of Stock [Line Items]
Entity Common Stock, Shares Outstanding		490,086,674

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 273,329	$ 486,792
Restricted cash	252	16,301
Accounts receivable, trade (less allowance for doubtful accounts of $13,420 and $11,677)	370,765	349,626
Prepaid expenses and other current assets (including a prepayment to an affiliate of $19,563 in 2017) (See Note 14)	135,313	88,151
Amounts due from affiliates	21,356	22,182
Investment securities pledged as collateral	0	741,515
Derivative contracts	52,545	352
Total current assets	853,560	1,704,919
Property, plant and equipment, net of accumulated depreciation of $2,599,579 and $1,039,297	6,063,829	6,597,635
Investment in affiliates	930	5,606
Investment securities pledged as collateral	1,720,357	741,515
Derivative contracts	0	10,604
Other assets (including a prepayment to an affiliate of $6,539 in 2017) (See Note 14)	53,254	48,545
Amortizable intangible assets, net of accumulated amortization	5,066,454	6,352,644
Indefinite-lived cable television franchises	13,020,081	13,020,081
Goodwill	7,996,760	7,992,700
Total assets	34,775,225	36,474,249
Current Liabilities:
Accounts payable	790,220	705,672
Accrued liabilities:
Interest	397,422	576,778
Employee related costs	132,641	232,864
Other accrued expenses	408,632	352,315
Amounts due to affiliates	13,946	127,363
Deferred revenue	104,220	94,816
Liabilities under derivative contracts	52,545	13,158
Collateralized indebtedness	0	622,332
Credit facility debt	42,650	33,150
Senior notes and debentures	507,744	926,045
Capital lease obligations	9,539	15,013
Notes payable	33,424	5,427
Total current liabilities	2,492,983	3,704,933
Defined benefit plan obligations	103,163	84,106
Notes payable to affiliates and related parties	0	1,750,000
Other liabilities	137,895	113,485
Deferred tax liability	4,775,115	7,966,815
Liabilities under derivative contracts	187,406	78,823
Collateralized indebtedness	1,349,474	663,737
Credit facility debt	4,600,873	3,411,640
Senior guaranteed notes	2,291,185	2,289,494
Senior notes and debentures	13,061,503	14,291,786
Capital lease obligations	12,441	13,142
Notes payable	32,478	8,299
Deficit investments in affiliates	3,579	0
Total liabilities	29,048,095	34,376,260
Commitments and contingencies
Redeemable equity	231,290	68,147
Stockholders' Equity:
Preferred stock, $.01 par value, 100,000,000 shares authorized, no shares issued and outstanding at December 31, 2017	0	0
Paid-in capital	4,642,128	3,003,554
Retained earnings (accumulated deficit)	854,824	(975,978)
Total stockholders' equity before accumulated other comprehensive Income and non-controlling interest	5,504,323	2,027,576
Accumulated other comprehensive income (loss)	(10,022)	1,979
Total stockholders' equity	5,494,301	2,029,555
Noncontrolling interest	1,539	287
Total stockholders' equity	5,495,840	2,029,842
Total liabilities and stockholders' equity	34,775,225	36,474,249
Common Class A
Stockholders' Equity:
Common stock	2,470	0
Common Class B
Stockholders' Equity:
Common stock	4,901	0
Common Class C
Stockholders' Equity:
Common stock	0	0
Undesignated Common Stock
Stockholders' Equity:
Common stock	0	0
Customer relationships
Current Assets:
Amortizable intangible assets, net of accumulated amortization	4,561,863	5,345,608
Trade names
Current Assets:
Amortizable intangible assets, net of accumulated amortization	478,509	983,386
Amortizable intangible assets
Current Assets:
Amortizable intangible assets, net of accumulated amortization	$ 26,082	$ 23,650

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current Assets:
Accounts receivable, trade allowance for doubtful accounts	$ 13,420	$ 11,677
Prepayment to affiliate included in prepaid expenses and other current assets	135,313	88,151
Property, plant and equipment, accumulated depreciation	2,599,579	1,039,297
Amortizable intangible assets, accumulated amortization	$ 2,008,573	$ 666,766
Stockholders' Equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)		1,000
Common stock, shares issued (in shares)		100
Common stock, shares outstanding (in shares)		100
Common Class A
Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 0.01
Common stock, shares authorized (in shares)	4,000,000,000
Common stock, shares issued (in shares)	246,982,292
Common stock, shares outstanding (in shares)	246,982,292
Common Class B
Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 0.01
Common stock, shares authorized (in shares)	1,000,000,000
Common stock, shares issued (in shares)	490,086,674
Common stock, shares outstanding (in shares)	490,086,674
Common Class C
Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 0.01
Common stock, shares authorized (in shares)	4,000,000,000
Common stock, shares issued (in shares)	0
Common stock, shares outstanding (in shares)	0
Customer relationships
Current Assets:
Amortizable intangible assets, accumulated amortization	$ 1,409,021	$ 580,276
Trade names
Current Assets:
Amortizable intangible assets, accumulated amortization	588,574	83,397
Amortizable intangible assets
Current Assets:
Amortizable intangible assets, accumulated amortization	10,978	$ 3,093
Affiliates
Current Assets:
Prepayment to affiliate included in prepaid expenses and other current assets	19,563
Prepayment to affiliate in other assets	$ 6,539

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Revenue (including revenue from affiliates of $2,205 and $1,086, respectively) (See Note 14)	$ 9,326,570	$ 6,017,212
Operating expenses:
Programming and other direct costs (including charges from affiliates of $4,176 and $1,947, respectively) (See Note 14)	3,035,655	1,911,230
Other operating expenses (including charges from affiliates of $106,084 and $18,854, respectively) (See Note 14)	2,342,655	1,705,615
Restructuring and other expense	152,401	240,395
Depreciation and amortization (including impairments)	2,930,475	1,700,306
Total operating expenses	8,461,186	5,557,546
Operating income	865,384	459,666
Other income (expense):
Interest expense (including interest expense to affiliates and related parties of $90,405 and $112,712, respectively) (See Note 14)	(1,603,132)	(1,456,541)
Interest income	1,921	13,811
Gain on investments, net	237,354	141,896
Loss on derivative contracts, net	(236,330)	(53,696)
Gain (loss) on interest rate swap contracts	5,482	(72,961)
Loss on extinguishment of debt and write-off of deferred financing costs (including $513,723 related to affiliates and related parties in 2017) (See Note 14)	(600,240)	(127,649)
Other income (expense), net	(1,788)	4,329
Total other income (expense)	(2,196,733)	(1,550,811)
Loss before income taxes	(1,331,349)	(1,091,145)
Income tax benefit	2,852,967	259,666
Net income (loss)	1,521,618	(831,479)
Net loss (income) attributable to noncontrolling interests	(1,587)	(551)
Net income (loss) attributable to Altice USA, Inc. stockholders	$ 1,520,031	$ (832,030)
Basic income (loss) per share (in dollars per share)	$ 2.18	$ (1.28)
Basic weighted average common shares (in thousands) (in shares)	696,055,000	649,525,000
Diluted income (loss) per share (in dollars per share)	$ 2.18	$ (1.28)
Diluted weighted average common shares (in thousands) (in shares)	696,055,000	649,525,000
Cash dividends declared per common share (in dollars per share)	$ 1.29	$ 0.69

CONSOLIDATED STATEMENTS OF OPE5

CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Revenue from affiliates	$ 2,205	$ 1,086
Programming and other direct costs from affiliates	4,176	1,947
Other operating expenses from affiliates	106,084	18,854
Interest expense to related parties and affiliates	90,405	112,712
Loss on extinguishment of debt and write-off of deferred financing costs (including $513,723 related to affiliates and related parties in 2017) (See Note 14)	$ 513,723	$ 0

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 2,254,682	$ (182,086)	$ (474,790)	$ (76,188)	$ (236,049)	$ (172,553)	$ (282,129)	$ (140,748)	$ 1,521,618	$ (831,479)
Defined benefit pension plans:
Unrecognized actuarial gain (loss)									(18,632)	3,452
Applicable income taxes									7,441	(1,381)
Unrecognized gain (loss) arising during period, net of income taxes									(11,191)	2,071
Curtailment loss, net of settlement losses of $1,845 for 2017 included in net periodic benefit cost									(1,350)	(154)
Applicable income taxes									540	62
Curtailment loss, net of settlement losses included in net periodic benefit cost, net of income taxes									(810)	(92)
Other comprehensive gain (loss)									(12,001)	1,979
Comprehensive income (loss)									1,509,617	(829,500)
Comprehensive income attributable to noncontrolling interests									(1,587)	(551)
Comprehensive Income (loss) attributable to Altice USA, Inc. stockholders									$ 1,508,030	$ (830,051)

CONSOLIDATED STATEMENTS OF COM7

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Settlement loss (gain) related to pension plan	$ 1,845	$ 0

CONSOLIDATED STATEMENT OF STOCK

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Organizational Transactions Prior to IPO	IPO	Total Stockholders' Equity	Total Stockholders' EquityOrganizational Transactions Prior to IPO	Total Stockholders' EquityIPO	Paid-in Capital	Paid-in CapitalOrganizational Transactions Prior to IPO	Paid-in CapitalIPO	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income	Non-controlling Interest	Common Class ACommon Stock	Common Class ACommon StockOrganizational Transactions Prior to IPO	Common Class ACommon StockIPO	Common Class BCommon Stock	Common Class BCommon StockOrganizational Transactions Prior to IPO
Ending balance at Dec. 31, 2015	$ 2,108,080			$ 2,108,080			$ 2,252,028			$ (143,948)	$ 0	$ 0	$ 0
Beginning balance at Dec. 31, 2015	2,108,080			2,108,080			2,252,028			(143,948)	0	0	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to stockholders	(832,030)			(832,030)						(832,030)
Noncontrolling interests acquired	(264)											(264)
Net income attributable to noncontrolling interests	551											551
Pension liability adjustments, net of income taxes	1,979			1,979							1,979
Share-based compensation expense	14,368			14,368			14,368
Change in redeemable equity	(68,148)			(68,148)			(68,148)
Contributions from stockholders	1,246,499			1,246,499			1,246,499
Distributions to stockholders/non-controlling interest	(445,176)			(445,176)			(445,176)
Excess tax benefit on share-based awards	31			31			31
Tax impact related to the Newsday Holdings, LLC transactions	3,952			3,952			3,952
Ending balance at Dec. 31, 2016	2,029,842			2,029,555			3,003,554			(975,978)	1,979	287	0			$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to stockholders	1,520,031			1,520,031						1,520,031
Net income attributable to noncontrolling interests	1,587											1,587
Pension liability adjustments, net of income taxes	(12,001)			(12,001)							(12,001)
Share-based compensation expense	57,430			57,430			57,430
Change in redeemable equity	(163,142)			(163,142)			(163,142)
Contributions from stockholders	1,135			1,135			1,135
Distributions to stockholders/non-controlling interest	(840,035)			(839,700)			(839,700)					(335)
Transfer of goodwill	(23,101)			(23,101)			(23,101)
Recognition of previously unrealized excess tax benefits related to share-based awards in connection with the adoption of ASU 2016-09	310,771			310,771						310,771
Issuance of common stock pursuant to IPO		$ 2,264,252	$ 349,071		$ 2,264,252	$ 349,071		$ 2,257,002	$ 348,950					$ 2,349	$ 121		$ 4,901
Ending balance at Dec. 31, 2017	$ 5,495,840			$ 5,494,301			$ 4,642,128			$ 854,824	$ (10,022)	$ 1,539	$ 2,470			$ 4,901

CONSOLIDATED STATEMENT OF CASH

CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net income (loss)	$ 1,521,618	$ (831,479)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization (including impairments)	2,930,475	1,700,306
Impairment of assets included in restructuring charges	0	2,445
Gain on sale of affiliate interests	0	(206)
Equity in net loss of affiliates	10,040	1,132
Gain on investments, net	(237,354)	(141,896)
Loss on derivative contracts, net	236,330	53,696
Loss on extinguishment of debt and write-off of deferred financing costs	600,240	127,649
Amortization of deferred financing costs and discounts (premiums) on indebtedness	31,046	27,799
Settlement loss related to pension plan	1,845	3,298
Share-based compensation expense	57,430	14,368
Deferred income taxes	(2,871,144)	(263,989)
Excess tax benefit on share-based awards	0	(31)
Provision for doubtful accounts	74,183	53,249
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	(89,683)	(58,760)
Other receivables	(12,832)	9,413
Prepaid expenses and other assets	(32,927)	56,395
Amounts due from and due to affiliates	(32,970)	41,351
Accounts payable	69,088	(11,814)
Accrued liabilities	(265,031)	312,871
Deferred revenue	12,310	9,835
Liabilities related to interest rate swap contracts	(921)	78,823
Net cash provided by operating activities	2,001,743	1,184,455
Cash flows from investing activities:
Payment for acquisition, net of cash acquired	(46,703)	(8,988,774)
Net proceeds from sale of affiliate interests	0	13,825
Capital expenditures	(991,364)	(625,541)
Proceeds related to sale of equipment, including costs of disposal	9,743	5,885
Increase in other investments	(4,773)	(4,608)
Settlement of put-call options	(97,410)	0
Additions to other intangible assets	(1,707)	(106)
Net cash used in investing activities	(1,132,214)	(9,599,319)
Cash flows from financing activities:
Proceeds from credit facility debt	5,593,675	5,510,256
Repayment of credit facility debt	(4,411,581)	(9,133,543)
Proceeds from notes payable to affiliates and related parties	0	1,750,000
Issuance of senior notes	0	1,310,000
Proceeds from collateralized indebtedness	838,794	179,388
Repayment of collateralized indebtedness and related derivative contracts	(831,059)	(143,102)
Distributions to stockholders	(919,317)	(365,559)
Repayment of senior notes, including premiums and fees	(1,729,400)	0
Proceeds from notes payable	33,733	0
Excess tax benefit on share-based awards	0	31
Principal payments on capital lease obligations	(15,157)	(18,837)
Additions to deferred financing costs	(8,600)	(203,712)
Proceeds from IPO, net of fees	349,071	0
Contributions from stockholders	1,135	1,246,499
Distributions to noncontrolling interests, net	(335)	0
Net cash provided by (used in) financing activities	(1,099,041)	131,421
Net decrease in cash and cash equivalents	(229,512)	(8,283,443)
Cash, cash equivalents and restricted cash at beginning of year	503,093	8,786,536
Cash, cash equivalents and restricted cash at end of year	$ 273,581	$ 503,093

CVC - CONSOLIDATED BALANCE SHEE

CVC - CONSOLIDATED BALANCE SHEETS $ in Thousands	Dec. 31, 2015USD ($)
Current Assets:
Goodwill	$ 2,040,402
Stockholders' Equity:
Total stockholders' equity	2,108,080
Cablevision Systems Corporation And Subsidiaries
Current Assets:
Cash and cash equivalents	1,003,279
Restricted cash	1,600
Accounts receivable, trade (less allowance for doubtful accounts of $13,420 and $11,677)	266,383
Prepaid expenses and other current assets (including a prepayment to an affiliate of $19,563 in 2017) (See Note 14)	123,242
Amounts due from affiliates	767
Deferred tax asset	14,596
Investment securities pledged as collateral	455,386
Derivative contracts	10,333
Total current assets	1,875,586
Property, plant and equipment, net of accumulated depreciation of $2,599,579 and $1,039,297	3,017,015
Investment in affiliates	0
Investment securities pledged as collateral	756,596
Derivative contracts	72,075
Other assets (including a prepayment to an affiliate of $6,539 in 2017) (See Note 14)	32,920
Amortizable intangible assets, net of accumulated amortization	36,951
Trademarks and other indefinite-lived intangible assets	7,250
Goodwill	262,345
Deferred financing costs, net of accumulated amortization of $8,150	7,588
Total assets	6,800,174
Current Liabilities:
Accounts payable	453,653
Accrued liabilities:
Interest	119,005
Employee related costs	344,091
Other accrued expenses	169,899
Amounts due to affiliates	29,729
Deferred revenue	55,545
Liabilities under derivative contracts	2,706
Credit facility debt	562,898
Collateralized indebtedness	416,621
Senior notes and debentures	0
Capital lease obligations	20,350
Notes payable	13,267
Total current liabilities	2,187,764
Long-term defined benefit plan obligations	99,228
Other liabilities	165,768
Deferred tax liability	704,835
Credit facility debt	1,951,556
Collateralized indebtedness	774,703
Senior guaranteed notes	0
Senior notes and debentures	5,801,011
Capital lease obligations	25,616
Notes payable	1,277
Total liabilities	11,711,758
Commitments and contingencies
Stockholders' Equity:
Preferred Stock, $.01 par value, 50,000,000 shares authorized, none issued	0
Paid-in capital	792,351
Retained earnings (accumulated deficit)	(4,059,411)
Total stockholders' equity before accumulated other comprehensive Income and non-controlling interest	(3,263,477)
Treasury stock, at cost (81,624,493 CNYG Class A common shares)	(1,610,167)
Accumulated other comprehensive income (loss)	(37,672)
Total stockholders' equity	(4,911,316)
Noncontrolling interest	(268)
Total stockholders' equity	(4,911,584)
Total liabilities and stockholders' equity	6,800,174
Cablevision Systems Corporation And Subsidiaries | CNYG Class A Common Stock
Stockholders' Equity:
Common Stock	3,042
Cablevision Systems Corporation And Subsidiaries | CNYG Class B Common Stock
Stockholders' Equity:
Common Stock	541
Cablevision Systems Corporation And Subsidiaries | RMG Class A Common Stock
Stockholders' Equity:
Common Stock	0
Cablevision Systems Corporation And Subsidiaries | RMG Class B Common Stock
Stockholders' Equity:
Common Stock	0
Cablevision Systems Corporation And Subsidiaries | Customer relationships
Current Assets:
Amortizable intangible assets, net of accumulated amortization	11,636
Cablevision Systems Corporation And Subsidiaries | Amortizable intangible assets
Current Assets:
Amortizable intangible assets, net of accumulated amortization	25,315
Cable television franchises | Cablevision Systems Corporation And Subsidiaries
Current Assets:
Indefinite-lived cable television franchises	$ 731,848

CVC - CONDENSED CONSOLIDATED BA

CVC - CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) $ in Thousands	Dec. 31, 2015USD ($)$ / sharesshares
Cablevision Systems Corporation And Subsidiaries
Current Assets:
Accounts receivable, trade allowance for doubtful accounts | $	$ 6,039
Property, plant and equipment, accumulated depreciation | $	9,625,348
Amortizable intangible assets, accumulated amortization | $	60,310
Deferred financing costs, accumulated amortization | $	$ 8,150
Stockholders' Equity:
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000
Preferred stock, shares issued (in shares)	0
Cablevision Systems Corporation And Subsidiaries | Customer relationships
Current Assets:
Amortizable intangible assets, accumulated amortization | $	$ 27,778
Cablevision Systems Corporation And Subsidiaries | Amortizable intangible assets
Current Assets:
Amortizable intangible assets, accumulated amortization | $	$ 32,532
CNYG Class A Common Stock | Cablevision Systems Corporation And Subsidiaries
Stockholders' Equity:
Common stock, par value (in dollars per share) | $ / shares	$ 0.01
Common stock, shares authorized (in shares)	800,000,000
Common stock, shares issued (in shares)	304,196,703
Common stock, shares outstanding (in shares)	222,572,210
Treasury stock (in shares)	81,624,493
CNYG Class B Common Stock | Cablevision Systems Corporation And Subsidiaries
Stockholders' Equity:
Common stock, par value (in dollars per share) | $ / shares	$ 0.01
Common stock, shares authorized (in shares)	320,000,000
Common stock, shares issued (in shares)	54,137,673
Common stock, shares outstanding (in shares)	54,137,673
RMG Class A Common Stock | Cablevision Systems Corporation And Subsidiaries
Stockholders' Equity:
Common stock, par value (in dollars per share) | $ / shares	$ 0.01
Common stock, shares authorized (in shares)	600,000,000
Common stock, shares issued (in shares)	0
RMG Class B Common Stock | Cablevision Systems Corporation And Subsidiaries
Stockholders' Equity:
Common stock, par value (in dollars per share) | $ / shares	$ 0.01
Common stock, shares authorized (in shares)	160,000,000
Common stock, shares issued (in shares)	0

CVC - CONSOLIDATED STATEMENT OF

CVC - CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2015
Cablevision Systems Corporation And Subsidiaries
Revenue (including revenue from affiliates of $2,205 and $1,086, respectively) (See Note 14)	$ 3,137,604	$ 6,545,545
Operating expenses:
Programming and other direct costs (including charges from affiliates of $4,176 and $1,947, respectively) (See Note 14)	1,088,555	2,269,290
Other operating expenses (including charges from affiliates of $106,084 and $18,854, respectively) (See Note 14)	1,136,970	2,546,319
Restructuring and other expense	22,223	16,213
Depreciation and amortization (including impairments)	414,550	865,252
Total operating expenses	2,662,298	5,697,074
Operating income	475,306	848,471
Other income (expense):
Interest expense (including interest expense to affiliates and related parties of $90,405 and $112,712, respectively) (See Note 14)	(287,098)	(585,764)
Interest income	1,590	925
Gain on investments, net	129,990	(30,208)
Loss on equity derivative contracts, net	(36,283)	104,927
Loss on extinguishment of debt and write-off of deferred financing costs (including $513,723 related to affiliates and related parties in 2017) (See Note 14)	0	(1,735)
Other income, net	4,855	6,045
Total other income (expense)	(186,946)	(505,810)
Loss before income taxes	288,360	342,661
Income tax benefit	(124,848)	(154,872)
Income from continuing operations, net of income taxes	163,512	187,789
Income (loss) from discontinued operations, net of income taxes	0	(12,541)
Net income (loss)	163,512	175,248
Net loss (income) attributable to noncontrolling interests	236	201
Net income (loss) attributable to Altice USA, Inc. stockholders	$ 163,748	$ 175,449
Basic income (loss) per share attributable to Cablevision Systems Corporation stockholder(s):
Income from continuing operations, net of income taxes (in dollars per share)	$ 0.60	$ 0.70
Income (loss) from discontinued operations, net of income taxes (in dollars per share)	0	(0.05)
Net income (in dollars per share)	$ 0.60	$ 0.65
Basic weighted average common shares (in thousands) (in shares)	272,035,000	269,388,000
Diluted income (loss) per share attributable to Cablevision Systems Corporation stockholder(s):
Income from continuing operations, net of income taxes (in dollars per share)	$ 0.58	$ 0.68
Income (loss) from discontinued operations, net of income taxes (in dollars per share)	0	(0.05)
Net income (in dollars per share)	$ 0.58	$ 0.63
Diluted weighted average common shares (in thousands)	280,199,000	276,339,000
Amounts attributable to Cablevision Systems Corporation stockholder(s):
Income from continuing operations, net of income taxes	$ 163,748	$ 187,990
Income (loss) from discontinued operations, net of income taxes	0	(12,541)
Net income (loss) attributable to Altice USA, Inc. stockholders	$ 163,748	$ 175,449
Cash dividends declared per common share (in dollars per share)	$ 0	$ 0.45

CVC - CONSOLIDATED STATEMENT 13

CVC - CONSOLIDATED STATEMENT OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenue from affiliates		$ 2,205	$ 1,086
Programming and other direct costs from affiliates		4,176	1,947
Related Party Transaction, Other Operating Expense		$ 106,084	$ 18,854
Cablevision Systems Corporation And Subsidiaries
Revenue from affiliates	$ 2,088			$ 5,343
Programming and other direct costs from affiliates	84,636			176,909
Related Party Transaction, Other Operating Expense	$ 2,182			$ 5,372

CVC - CONDENSED CONSOLIDATED ST

CVC - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2015
Cablevision Systems Corporation And Subsidiaries
Net income	$ 163,512	$ 175,248
Defined benefit pension and postretirement plans (see Note 13):
Unrecognized actuarial gain	68	2,694
Applicable income taxes	(28)	(1,106)
Unrecognized gain (loss) arising during period, net of income taxes	40	1,588
Amortization of actuarial losses, net included in net periodic benefit cost	929	1,224
Applicable income taxes	(388)	(502)
Amortization of actuarial losses, net included in net periodic benefit cost, net of income taxes	541	722
Settlement income included in net periodic benefit cost	1,655	3,822
Applicable income taxes	(679)	(1,569)
Curtailment loss, net of settlement losses included in net periodic benefit cost, net of income taxes	976	2,253
Other comprehensive gain (loss)	1,557	4,563
Comprehensive income (loss)	165,069	179,811
Comprehensive income attributable to noncontrolling interests	236	201
Comprehensive Income (loss) attributable to Altice USA, Inc. stockholders	$ 165,305	$ 180,012

CVC - CONSOLIDATED STATEMENT 15

CVC - CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Paid-in Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income	Total Stockholders' Equity (Deficiency)	Non-controlling Interest	Cablevision Systems Corporation And Subsidiaries	Cablevision Systems Corporation And SubsidiariesPaid-in Capital	Cablevision Systems Corporation And SubsidiariesRetained Earnings (Accumulated Deficit)	Cablevision Systems Corporation And SubsidiariesTreasury Stock	Cablevision Systems Corporation And SubsidiariesAccumulated Other Comprehensive Income	Cablevision Systems Corporation And SubsidiariesTotal Stockholders' Equity (Deficiency)	Cablevision Systems Corporation And SubsidiariesNon-controlling Interest	CNYG Class A Common StockCablevision Systems Corporation And SubsidiariesCommon Stock	CNYG Class B Common StockCablevision Systems Corporation And SubsidiariesCommon Stock
Beginning balance at Dec. 31, 2014							$ (5,040,690)	$ 823,103	$ (4,234,860)	$ (1,591,021)	$ (42,235)	$ (5,041,469)	$ 779	$ 3,003	$ 541
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to stockholders							175,449		175,449			175,449
Net income attributable to noncontrolling interests							(146)						(146)
Pension and postretirement plan liability adjustments, net of income taxes							4,563				4,563	4,563
Proceeds from exercise of options and issuance of restricted shares							18,687	18,648				18,687		39
Recognition of equity-based stock compensation arrangements							60,817	60,817				60,817
Treasury stock acquired from forfeiture and acquisition of restricted shares							(19,141)	5		(19,146)		(19,141)
Excess tax benefit on share-based awards							5,694	5,694				5,694
Dividends on CNYG Class A and CNYG Class B common stock							(124,752)	(124,752)				(124,752)
Adjustments to/Contributions from noncontrolling interests							7,935	8,836				8,836	(901)
Ending balance at Dec. 31, 2015	$ 2,108,080	$ 2,252,028	$ (143,948)	$ 0	$ 2,108,080	$ 0	(4,911,584)	792,351	(4,059,411)	(1,610,167)	(37,672)	(4,911,316)	(268)	3,042	541
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to stockholders							163,748		163,748			163,748
Net income attributable to noncontrolling interests							(236)						(236)
Pension and postretirement plan liability adjustments, net of income taxes							1,557				1,557	1,557
Proceeds from exercise of options and issuance of restricted shares							14,559	14,544				14,559		15
Recognition of equity-based stock compensation arrangements							24,997	24,997				24,997
Treasury stock acquired from forfeiture and acquisition of restricted shares							(41,469)	1		(41,470)		(41,469)
Tax withholding associated with shares issued for equity-based compensation							(6,034)	(6,030)				(6,034)		(4)
Dividends on CNYG Class A and CNYG Class B common stock							(82)	(82)				(82)
Adjustments to/Contributions from noncontrolling interests							240						240
Ending balance at Jun. 20, 2016							(4,754,140)	825,945	(3,895,663)	(1,651,637)	(36,115)	(4,753,876)	(264)	3,053	541
Beginning balance at Dec. 31, 2015	2,108,080	2,252,028	(143,948)	0	2,108,080	0	$ (4,911,584)	$ 792,351	$ (4,059,411)	$ (1,610,167)	$ (37,672)	$ (4,911,316)	$ (268)	$ 3,042	$ 541
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to stockholders	(832,030)		(832,030)		(832,030)
Recognition of equity-based stock compensation arrangements	14,368	14,368			14,368
Ending balance at Dec. 31, 2016	2,029,842	3,003,554	(975,978)	1,979	2,029,555	287
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to stockholders	1,520,031		1,520,031		1,520,031
Recognition of equity-based stock compensation arrangements	57,430	57,430			57,430
Ending balance at Dec. 31, 2017	$ 5,495,840	$ 4,642,128	$ 854,824	$ (10,022)	$ 5,494,301	$ 1,539

CVC - CONSOLIDATED STATEMENT 16

CVC - CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2015
Cablevision Systems Corporation And Subsidiaries
Cash flows from operating activities:
Net income	$ 163,512	$ 175,248
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Loss (income) from discontinued operations, net of income taxes	0	12,541
Depreciation and amortization (including impairments)	414,550	865,252
Loss (gain) on investments, net	(129,990)	30,208
Loss (gain) on equity derivative contracts, net	36,283	(104,927)
Loss on extinguishment of debt and write-off of deferred financing costs	0	1,735
Amortization of deferred financing costs and discounts (premiums) on indebtedness	11,673	23,764
Share-based compensation expense	24,778	60,321
Settlement loss and amortization of actuarial losses related to pension and postretirement plans	2,584	5,046
Deferred income taxes	116,150	133,396
Provision for doubtful accounts	13,240	35,802
Excess tax benefit on share-based awards	(82)	(5,694)
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	(18,162)	(24,760)
Prepaid expenses and other assets	(844)	38,860
Amounts due from and due to affiliates	(5,082)	1,043
Accounts payable	36,147	6,896
Accrued liabilities	(160,937)	1,200
Deferred revenue	(9,726)	2,156
Net cash provided by operating activities	494,094	1,258,087
Cash flows from investing activities:
Capital expenditures	(330,131)	(816,396)
Proceeds related to sale of equipment, including costs of disposal	1,106	4,407
Decrease (increase) in other investments	610	(7,779)
Additions to other intangible assets	(1,709)	(8,035)
Net cash used in investing activities	(330,124)	(827,803)
Cash flows from financing activities:
Repayment of credit facility debt	(14,953)	(260,321)
Proceeds from collateralized indebtedness	337,149	774,703
Repayment of collateralized indebtedness and related derivative contracts	(281,594)	(639,237)
Repayment of notes payable	(1,291)	(2,458)
Proceeds from stock option exercises	14,411	18,727
Tax withholding associated with shares issued for equity-based awards	(6,034)
Dividend distributions to common stockholders	(4,066)	(125,170)
Principal payments on capital lease obligations	(11,552)	(20,250)
Deemed repurchases of restricted stock	(41,469)	(19,141)
Additions to deferred financing costs		(250)
Payment for purchase of noncontrolling interest		(8,300)
Contributions from noncontrolling interests, net	240
Distributions to noncontrolling interests, net		(901)
Excess tax benefit on share-based awards	82	5,694
Net cash provided by (used in) financing activities	(9,077)	(276,904)
Net increase in cash and cash equivalents from continuing operations	154,893	153,380
Cash flows of discontinued operations:
Net cash used in operating activities	(21,000)	(484)
Net cash provided by (used in) investing activities		(30)
Net increase (decrease) in cash and cash equivalents from discontinued operations	(21,000)	(514)
Cash and cash equivalents at beginning of period	1,003,279	850,413
Cash and cash equivalents at end of year	$ 1,137,172	$ 1,003,279

DESCRIPTION OF BUSINESS AND REL

DESCRIPTION OF BUSINESS AND RELATED MATTERS	12 Months Ended
	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
DESCRIPTION OF BUSINESS AND RELATED MATTERS	DESCRIPTION OF BUSINESS AND RELATED MATTERS The Company and Related Matters Altice USA, Inc. ("Altice USA" or the "Company") was incorporated in Delaware on September 14, 2015 . As of December 31, 2017 , Altice USA is majority‑owned by Altice N.V., a public company with limited liability (naamloze vennootshcap) under Dutch law. Upon the completion of the Altice N.V. distribution discussed below, the Company will no longer be majority-owned by Altice N.V. The Company provides broadband communications and video services in the United States. It delivers broadband, pay television, telephony services, proprietary content and advertising services to residential and business customers. Altice N.V., through a subsidiary, acquired Cequel Corporation ("Cequel" or "Suddenlink") on December 21, 2015 and Cequel was contributed to Altice USA on June 9, 2016 . Altice USA had no operations of its own other than the issuance of debt prior to the contribution of Cequel on June 9, 2016 by Altice N.V. The results of operations of Cequel for the year ended December 31, 2016 have been included in the results of operations of Altice USA for the same periods, as Cequel was under common control with Altice USA. Altice USA acquired Cablevision Systems Corporation ("Cablevision" or "Optimum") on June 21, 2016 (see discussion below) and the results of operations of Cablevision are included with the results of operations of Cequel for the year ended December 31, 2017 . The year ended December 31, 2016 operating results include the operating results of Cablevision from the date of acquisition, June 21, 2016. The accompanying consolidated financial statements include the accounts of the Company and all subsidiaries in which the Company has a controlling interest. All significant inter-company accounts and transactions have been eliminated in consolidation. The Company classifies its operations into two reportable segments: Cablevision, which operates in the New York metropolitan area, and Cequel, which principally operates in markets in the south‑central United States. Initial Public Offering In June 2017, the Company completed its initial public offering ("IPO") of 71,724,139 shares of its Class A common stock ( 12,068,966 shares sold by the Company and 59,655,173 shares sold by existing stockholders) at a price to the public of $30.00 per share, including the underwriters full exercise of their option to purchase 7,781,110 shares to cover overallotments. At the date of the IPO, Altice N.V. owned approximately 70.2% of the Company's issued and outstanding common stock, which represented approximately 98.2% of the voting power of the Company's outstanding common stock. The Company’s Class A common stock began trading on June 22, 2017, on the New York Stock Exchange under the symbol "ATUS". In connection with the sale of its Class A common stock, the Company received proceeds of approximately $362,069 , before deducting the underwriting discount and expenses directly related to the issuance of the securities of $12,998 . The Company did not receive any proceeds from the sale of shares by the selling stockholders. In July 2017, the Company used approximately $350,120 of the proceeds to fund the redemption of $315,779 principal amount of 10.875% senior notes that mature in 2025 issued by CSC Holdings, an indirect wholly-owned subsidiary of the Company, and the related call premium of approximately $34,341 . The following organizational transactions were consummated prior to the IPO: • the Company amended and restated its certificate of incorporation to, among other things, provide for Class A common stock, Class B common stock and Class C common stock; • BC Partners LLP ("BCP") and Canada Pension Plan Investment Board (‘‘CPPIB and together with BCP, the‘‘Co-Investors’’) and Uppernext S.C.S.p. ("Uppernext"), an entity controlled by Mr. Patrick Drahi (founder and controlling stockholder of Altice N.V.), exchanged their indirect ownership interest in the Company for shares of the Company’s common stock; • Neptune Management LP (‘‘Management LP’’) redeemed its Class B units for shares of the Company’s common stock that it received from the redemption of its Class B units in Neptune Holding US LP; • the Company converted $525,000 aggregate principal amount of notes issued by the Company to the Co-Investors (together with accrued and unpaid interest and applicable premium) into shares of the Company’s common stock at the IPO price (see Note 9 for further details); • $1,225,000 aggregate principal amount of notes issued by the Company to a subsidiary of Altice N.V. (together with accrued and unpaid interest and applicable premium) was transferred to CVC 3 B.V., an indirect subsidiary of Altice N.V. ("CVC 3") and then the Company converted such notes into shares of the Company’s common stock at the IPO price (see Note 9 for further details); • the Co-Investors, Neptune Holding US LP, A4 S.A. (an entity controlled by the family of Mr. Drahi), and former Class B unitholders of Management LP (including Uppernext) exchanged shares of the Company’s common stock for new shares of the Company’s Class A common stock; and • CVC 3 and A4 S.A. exchanged shares of the Company’s common stock for new shares of the Company’s Class B common stock. Acquisition of Cablevision Systems Corporation On June 21, 2016 (the "Cablevision Acquisition Date"), pursuant to the Agreement and Plan of Merger (the "Merger Agreement"), dated as of September 16, 2015 , by and among Cablevision, Altice N.V., Neptune Merger Sub Corp., a wholly-owned subsidiary of Altice N.V. ("Merger Sub"), Merger Sub merged with and into Cablevision, with Cablevision surviving the merger (the "Cablevision Acquisition"). In connection with the Cablevision Acquisition, each outstanding share of the Cablevision NY Group Class A common stock, par value $0.01 per share ("CNYG Class A Shares"), and Cablevision NY Group Class B common stock, par value $0.01 per share ("CNYG Class B Shares", and together with the CNYG Class A Shares, the "Shares"), and together with the Cablevision NY Group Class A common stock, the "Shares" other than Shares owned by Cablevision, Altice N.V. or any of their respective wholly-owned subsidiaries, in each case not held on behalf of third parties in a fiduciary capacity, received $34.90 in cash without interest, less applicable tax withholdings (the "Cablevision Acquisition Consideration"). Pursuant to an agreement, dated December 21, 2015 , by and among CVC 2 B.V., CIE Management IX Limited, for and on behalf of the limited partnerships BC European Capital IX-1 through 11 and Canada Pension Plan Investment Board, certain affiliates of BCP and CPPIB (the "Co-Investors") funded approximately $1,000,000 toward the payment of the aggregate Per Share Cablevision Acquisition Consideration, and indirectly acquired approximately 30% of the Shares of Cablevision. Also in connection with the Cablevision Acquisition, outstanding equity-based awards granted under Cablevision’s equity plans were cancelled and converted into cash based upon the $34.90 per Share Cablevision Acquisition Consideration in accordance with the original terms of the awards. The total consideration for the outstanding CNYG Class A Shares, the outstanding CNYG Class B Shares, and the equity-based awards amounted to $9,958,323 . In connection with the Cablevision Acquisition, in October 2015, Neptune Finco Corp. ("Finco"), an indirect wholly-owned subsidiary of Altice N.V. formed to complete the financing described herein and the merger with CSC Holdings, LLC ("CSC Holdings"), a wholly-owned subsidiary of Cablevision, borrowed an aggregate principal amount of $3,800,000 under a term loan facility (the "Term Credit Facility") and entered into revolving loan commitments in an aggregate principal amount of $2,000,000 (the "Revolving Credit Facility" and, together with the Term Credit Facility, the "Credit Facilities"). Finco also issued $1,800,000 aggregate principal amount of 10.125% senior notes due 2023 (the "2023 Notes"), $2,000,000 aggregate principal amount of 10.875% senior notes due 2025 (the "2025 Notes"), and $1,000,000 aggregate principal amount of 6.625% senior guaranteed notes due 2025 (the "2025 Guaranteed Notes") (collectively the "Cablevision Acquisition Notes"). On June 21, 2016 , immediately following the Cablevision Acquisition, Finco merged with and into CSC Holdings, with CSC Holdings surviving the merger (the "CSC Holdings Merger"), and the Cablevision Acquisition Notes and the Credit Facilities became obligations of CSC Holdings. On June 21, 2016 , in connection with the Cablevision Acquisition, the Company issued notes payable to affiliates and related parties aggregating $1,750,000 , of which $875,000 bore interest at 10.75% and $875,000 bore interest at 11% . See Note 9 for a discussion regarding the conversion of these notes payable to shares of the Company's common stock prior to the consummation of the IPO. The Cablevision Acquisition was accounted for as a business combination in accordance with ASC Topic 805. Accordingly, the Company stepped up 100% of the assets and liabilities assumed to their fair value at the Cablevision Acquisition Date. See Note 3 for further details. Acquisition of Cequel Corporation On December 21, 2015 , Altice N.V., though a subsidiary, acquired approximately 70% of the total outstanding equity interests in Cequel (the "Cequel Acquisition") from the direct and indirect stockholders of Cequel Corporation (the "Sellers"). The consideration for the acquired equity interests, which was based on a total equity valuation for 100% of the capital and voting rights of Cequel, was $3,973,528 , including $2,797,928 of cash consideration, $675,600 of retained equity held by entities affiliated with BC Partners and CPPIB and $500,000 funded by the issuance by an affiliate of Altice N.V. of a senior vendor note that was subscribed by entities affiliated with BC Partners and CPPIB. Following the closing of the Cequel Acquisition, entities affiliated with BC Partners and CPPIB retained a 30% equity interest in a parent entity of the Company. In addition, the carried interest plans of the stockholders were cashed out whereby payments were made to participants in such carried interest plans, including certain officers and directors of Cequel. Altice N.V. Distribution On January 8, 2018, Altice N.V. announced plans for the separation of the Company from Altice N.V. Altice N.V. will distribute substantially all of its equity interest in the Company through a distribution in kind to holders of Altice N.V.'s common shares A and common shares B (the “Distribution”). Following the Distribution, Altice N.V. will no longer own a controlling equity interest in the Company, and the Company will operate independently from Altice N.V. The implementation of the Distribution is expected to be subject to certain conditions precedent being satisfied or waived. Although Altice N.V. and the Company have not yet negotiated the final terms of the Distribution and related transactions, the Company expects that the following will be conditions to the Distribution: • Approval of Altice N.V. shareholders of (i) the distribution in kind and (ii) the board resolution approving the change in identity and character of the business of Altice N.V. resulting from the Distribution; • Receipt of certain U.S. regulatory approvals, which could take up to 180 days; • This Registration Statement filed on January 8, 2018 being declared effective by the U.S. Securities and Exchange Commission (the ‘‘Commission’’); • The entry into the Master Separation Agreement and the entry into, amendments to or termination of various arrangements between Altice N.V. and the Company, such as a license to use the Altice brand, the stockholders’ agreement among Altice USA, Altice N.V. and certain other parties and the management agreement pursuant to which the Company pays a quarterly management fee to Altice N.V.; and • The declaration and payment of a one-time $1.5 billion dividend to Altice USA stockholders as of a record date prior to the Distribution (the ‘‘Pre-Distribution Dividend’’). Prior to Altice N.V.'s announcement of the Distribution, the Board of Directors of Altice USA, acting through its independent directors, approved in principle the payment of the Pre-Distribution Dividend to all shareholders immediately prior to completion of the separation. Formal approval of the Pre-Distribution Dividend and setting of a record date are expected to occur in the second quarter of 2018. The payment of the Pre-Distribution Dividend will be funded with available Cablevision revolving facility capacity and available cash from new financings, completed in January 2018, at CSC Holdings LLC, a wholly-owned subsidiary of Cablevision. In addition, the Board of Directors of Altice USA has authorized a share repurchase program of $2.0 billion , effective following completion of the separation. In connection with the Distribution, it is expected that the Management Advisory and Consulting Services Agreement with Altice N.V. which provides certain consulting, advisory and other services will be terminated. Compensation under the terms of the agreement is an annual fee of $30,000 paid by the Company. Acquisition of Altice Technical Services US Corp In January 2018, the Company acquired 70% of the equity interests in Altice Technical Services US Corp. ("ATS") for $1.00 (the "ATS Acquisition") and the Company expects to become the owner of 100% of the equity interests in ATS prior to the Distribution. ATS was previously owned by Altice N.V. and a member of ATS's management through a holding company. As a result of the ATS Acquisition, the operations of ATS will be combined with the Company's operations in 2018. As the acquisition is a combination of businesses under common control, the Company will retroactively combine the results of operations and related assets and liabilities of ATS for all periods. The following reflects the retroactive combination of ATS’s revenue, operating expenses and operating income for the period indicated: Year Ended December 31, 2017 Revenue $ 9,325,465 Operating expenses 8,482,728 Operating income $ 842,737 In connection with the ATS Acquisition, the Company will record goodwill of $23,101 , representing the amount previously transferred to ATS. See Note 14 regarding the Company's activities with ATS in 2017.

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Summary of Significant Accounting Policies Revenue Recognition The Company recognizes pay television, broadband, and telephony services revenues as the services are provided to customers. Revenue received from customers who purchase bundled services at a discounted rate is allocated to each product in a pro-rata manner based on the individual product’s selling price (generally, the price at which the product is regularly sold on a standalone basis). Installation revenue for the Company's pay television, broadband and telephony services is recognized as installations are completed, as direct selling costs have exceeded this revenue in all periods reported. Advertising revenues are recognized when commercials are aired. Revenues derived from other sources are recognized when services are provided or events occur. Multiple-Element Transactions In the normal course of business, the Company may enter into multiple-element transactions where it is simultaneously both a customer and a vendor with the same counterparty or in which it purchases multiple products and/or services, or settles outstanding items contemporaneously with the purchase of a product or service, from a single counterparty. The Company's policy for accounting for each transaction negotiated contemporaneously is to record each deliverable of the transaction based on its best estimate of selling price in a manner consistent with that used to determine the price to sell each deliverable on a standalone basis. In determining the fair value of the respective deliverable, the Company will utilize quoted market prices (as available), historical transactions or comparable transactions. Gross Versus Net Revenue Recognition In the normal course of business, the Company is assessed non-income related taxes by governmental authorities, including franchising authorities (generally under multi-year agreements), and collects such taxes from its customers. The Company's policy is that, in instances where the tax is being assessed directly on the Company, amounts paid to the governmental authorities and amounts received from the customers are recorded on a gross basis. That is, amounts paid to the governmental authorities are recorded as programming and other direct costs and amounts received from the customer are recorded as revenue. For the years ended December 31, 2017 and 2016, the amount of franchise fees and certain other taxes and fees included as a component of revenue aggregated $259,075 and $154,732 , respectively. Technical and Operating Expenses Costs of revenue related to sales of services are classified as "programming and other direct costs" in the accompanying consolidated statements of operations. Programming Costs Programming expenses related to the Company's pay television service represent fees paid to programming distributors to license the programming distributed to customers. This programming is acquired generally under multi-year distribution agreements, with rates usually based on the number of customers that receive the programming. If there are periods when an existing distribution agreement has expired and the parties have not finalized negotiations of either a renewal of that agreement or a new agreement for certain periods of time, the Company continues to carry and pay for these services until execution of definitive replacement agreements or renewals. The amount of programming expense recorded during the interim period is based on the Company's estimates of the ultimate contractual agreement expected to be reached, which is based on several factors, including previous contractual rates, customary rate increases and the current status of negotiations. Such estimates are adjusted as negotiations progress until new programming terms are finalized. In addition, the Company has received, or may receive, incentives from programming distributors for carriage of the distributors' programming. The Company generally recognizes these incentives as a reduction of programming costs in "programming and other direct costs", generally over the term of the distribution agreement. Advertising Expenses Advertising costs are charged to expense when incurred and are reflected in "other operating expenses" in the accompanying consolidated statements of operations. Advertising costs amounted to $224,120 and $135,513 for the years ended December 31, 2017 and 2016, respectively. Share-Based Compensation Share-based compensation expense is based on the fair value of the portion of share-based payment awards that are ultimately expected to vest. Share-based compensation cost relates to awards of units in a carried unit plan and options. For carried interest units, the Company measures share-based compensation cost at the grant date fair value and recognizes the expense over the requisite service period or when it is probable any related performance condition will be met. For carried interest units with graded vesting requirement, compensation cost is recognized on an accelerated method under the graded vesting method over the requisite service period for the carried interest unit. Carried interest units that vest entirely at the end of the vesting requirement are expensed on a straight-line basis. The Company estimated the fair value of carried interest units using an option pricing model. Key inputs that were used in applying the option pricing method were total equity value, equity volatility, risk free rate and time to liquidity event. The estimate of total equity value was determined using a combination of the income approach, which incorporated cash flow projections that were discounted at an appropriate rate, and the market approach, which involved applying a market multiple to the Company’s projected operating results. The Company estimated volatility based on the historical equity volatility of comparable publicly-traded companies. Subsequent to the IPO, such subjective valuations and estimates were no longer necessary as the Company relied on the market price of the Company’s common stock to determine the fair value of share-based compensation awards. See Note 13 to the consolidated financial statements for additional information about our share-based compensation. For stock option awards, the Company recognizes compensation expense based on the estimated grant date fair value using the Black-Scholes valuation model. For options not subject to performance based vesting conditions, the Company recognizes the compensation expense using a straight-line amortization method. Income Taxes The Company's provision for income taxes is based on current period income, changes in deferred tax assets and liabilities and changes in estimates with regard to uncertain tax positions. Deferred tax assets are subject to an ongoing assessment of realizability. The Company provides deferred taxes for the outside basis difference of its investment in partnerships. Cash and Cash Equivalents The Company's cash investments are placed with money market funds and financial institutions that are investment grade as rated by Standard & Poor's and Moody's Investors Service. The Company selects money market funds that predominantly invest in marketable, direct obligations issued or guaranteed by the United States government or its agencies, commercial paper, fully collateralized repurchase agreements, certificates of deposit, and time deposits. The Company considers the balance of its investment in funds that substantially hold securities that mature within three months or less from the date the fund purchases these securities to be cash equivalents. The carrying amount of cash and cash equivalents either approximates fair value due to the short-term maturity of these instruments or are at fair value. Accounts Receivable Accounts receivable are recorded at net realizable value. The Company periodically assesses the adequacy of valuation allowances for uncollectible accounts receivable by evaluating the collectability of outstanding receivables and general factors such as historical collection experience, length of time individual receivables are past due, and the economic and competitive environment. Investments Investment securities and investment securities pledged as collateral are classified as trading securities and are stated at fair value with realized and unrealized holding gains and losses included in net income. Long-Lived Assets and Amortizable Intangible Assets Property, plant and equipment, including construction materials, are carried at cost, and include all direct costs and certain indirect costs associated with the construction of cable systems, and the costs of new equipment installations. Equipment under capital leases is recorded at the present value of the total minimum lease payments. Depreciation on equipment is calculated on the straight-line basis over the estimated useful lives of the assets or, with respect to equipment under capital leases and leasehold improvements, amortized over the shorter of the lease term or the assets' useful lives and reported in depreciation and amortization (including impairments) in the consolidated statements of operations. The Company capitalizes certain internal and external costs incurred to acquire or develop internal-use software. Capitalized software costs are amortized over the estimated useful life of the software and reported in depreciation and amortization. Customer relationships, trade names and other intangibles established in connection with acquisitions that are finite-lived are amortized in a manner that reflects the pattern in which the projected net cash inflows to the Company are expected to occur, such as the sum of the years' digits method, or when such pattern does not exist, using the straight-line basis over their respective estimated useful lives. The Company reviews its long-lived assets (property, plant and equipment, and intangible assets subject to amortization that arose from acquisitions) for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the expected cash flows, undiscounted and without interest, is less than the carrying amount of the asset, an impairment loss is recognized as the amount by which the carrying amount of the asset exceeds its fair value. Goodwill and Indefinite-Lived Intangible Assets Goodwill and the value of franchises acquired in purchase business combinations which have indefinite useful lives are not amortized. Rather, such assets are tested for impairment annually or upon the occurrence of a triggering event. The Company assesses qualitative factors for its reporting units that carry goodwill. If the qualitative assessment results in a conclusion that it is more likely than not that the fair value of a reporting unit exceeds the carrying value, then no further testing is performed for that reporting unit. When the qualitative assessment is not used, or if the qualitative assessment is not conclusive and it is necessary to calculate the fair value of a reporting unit, then the impairment analysis for goodwill is performed at the reporting unit level using a two-step approach. The first step of the goodwill impairment test is used to identify potential impairment by comparing the fair value of the reporting unit with its carrying amount, including goodwill utilizing an enterprise-value based premise approach. If the carrying amount of the reporting unit exceeds its fair value, the second step of the goodwill impairment test is performed to measure the amount of goodwill impairment loss, if any. The second step of the goodwill impairment test compares the implied fair value of the reporting unit's goodwill with the carrying amount of that goodwill. If the carrying amount of the reporting unit's goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. The implied fair value of goodwill is determined in the same manner as the amount of goodwill which would be recognized in a business combination. The Company assesses qualitative factors to determine whether it is necessary to perform the one-step quantitative identifiable indefinite-lived intangible assets impairment test. This quantitative test is required only if the Company concludes that it is more likely than not that a unit of accounting’s fair value is less than its carrying amount. When the qualitative assessment is not used, or if the qualitative assessment is not conclusive, the impairment test for other intangible assets not subject to amortization requires a comparison of the fair value of the intangible asset with its carrying value. If the carrying value of the indefinite-lived intangible asset exceeds its fair value, an impairment loss is recognized in an amount equal to that excess. Deferred Financing Costs Deferred financing costs are being amortized to interest expense using the effective interest method over the terms of the related debt. Derivative Financial Instruments The Company accounts for derivative financial instruments as either assets or liabilities measured at fair value. The Company uses derivative instruments to manage its exposure to market risks from changes in certain equity prices and interest rates and does not hold or issue derivative instruments for speculative or trading purposes. These derivative instruments are not designated as hedges, and changes in the fair values of these derivatives are recognized in the statements of operations as gains (losses) on derivative contracts. Commitments and Contingencies Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when the Company believes it is probable that a liability has been incurred and the amount of the contingency can be reasonably estimated. Recently Adopted Accounting Pronouncement In March 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-09, Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which provides simplification of income tax accounting for share-based payment awards. The new guidance became effective for the Company on January 1, 2017. Amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures, and intrinsic value were applied using the modified retrospective transition method. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term were applied prospectively. The Company elected to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using the prospective transition method. In connection with the adoption on January 1, 2017, a deferred tax asset of approximately $310,771 for previously unrealized excess tax benefits was recognized with the offset recorded to accumulated deficit. Recently Issued But Not Yet Adopted Accounting Pronouncements In February 2018, the FASB issued ASU No. 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220) Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The primary provision of ASU No. 2018-02 allows for the reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. ASU 2018-02 also requires certain disclosures about stranded tax effects. ASU No. 2018‑02 is effective for the Company on January 1, 2019, with early adoption permitted and will be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act is recognized. In May 2017, the FASB issued ASU No. 2017‑09, Compensation- Stock Compensation (Topic 718). ASU No. 2017‑09 provides clarity and guidance on which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. ASU No. 2017‑09 is effective for the Company on January 1, 2018 and will be applied prospectively. In March 2017, the FASB issued ASU No. 2017‑07 Compensation-Retirement Benefits (Topic 715). ASU No. 2017‑07 requires that an employer disaggregate the service cost component from the other components of net benefit cost. It also provides guidance on how to present the service cost component and the other components of net benefit cost in the income statement and what component of net benefit cost is eligible for capitalization. ASU No. 2017‑07 is effective for the Company on January 1, 2018 and will be applied retrospectively. In connection with the adoption of ASU 2017-07, the Company will reclassify the non-service cost components of the Company's pension expense from primarily "Other operating expenses" to "Miscellaneous income (expense), net" on its consolidated statements of operations. The Company has elected to apply the practical expedient which allows it to reclassify amounts disclosed previously in the benefits plan note (Note 17 of the consolidated financial statements) as the basis for applying retrospective presentation for comparative periods, as the Company determined it was impracticable to disaggregate the cost components for amounts capitalized and amortized in those periods. In January 2017, the FASB issued ASU No. 2017‑04, Intangibles-Goodwill and Other (Topic 350). ASU No. 2017‑04 simplifies the subsequent measurement of goodwill by removing the second step of the two‑step impairment test. The amendment requires an entity to perform its annual, or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU No. 2017‑04 becomes effective for the Company on January 1, 2020 with early adoption permitted and will be applied prospectively. In January 2017, the FASB issued ASU No. 2017‑01, Business Combinations (Topic 805), Clarifying the Definition of a Business, which amends Topic 805 to interpret the definition of a business by adding guidance to assist in evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The new guidance is effective for the Company on January 1, 2018 and will be applied prospectively. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments which clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows. ASU No. 2016-15 also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. The new guidance is effective for the Company on January 1, 2018 and will be applied retrospectively. The Company does not believe that the adoption of ASU No. 2016-15 will have a material effect on its consolidated statements of cash flows. In February 2016, the FASB issued ASU No. 2016-02, Leases , which increases transparency and comparability by recognizing a lessee’s rights and obligations resulting from leases by recording them on the balance sheet as lease assets and lease liabilities. The new guidance becomes effective for the Company on January 1, 2019 with early adoption permitted and will be applied using the modified retrospective method. The Company has not yet completed the evaluation of the effect that ASU No. 2016-02 will have on its consolidated financial statements. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10), Recognition and Measurement of Financial Assets and Financial Liabilities. ASU No. 2016-01 modifies how entities measure certain equity investments and also modifies the recognition of changes in the fair value of financial liabilities measured under the fair value option. Entities will be required to measure equity investments that do not result in consolidation and are not accounted for under the equity method at fair value and recognize any changes in fair value in net income. For financial liabilities measured using the fair value option, entities will be required to record changes in fair value caused by a change in instrument-specific credit risk (own credit risk) separately in other comprehensive income. ASU No. 2016-01 is effective for the Company on January 1, 2018. The Company does expect the adoption of ASU No. 2016-01 to have any effect on its consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, requiring an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU No. 2014-09 will replace most existing revenue recognition guidance in GAAP. In August 2015, the FASB issued ASU No. 2015-14 that approved deferring the effective date by one year so that ASU No. 2014-09 is effective for the Company on January 1, 2018. In December 2016, the FASB issued ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers, in order to clarify the Codification and to correct any unintended application of the guidance. The amendments in this update affect the guidance in ASU No. 2014-09. The Company will adopt ASU No. 2014-09 on January 1, 2018 and will transition to the standard retrospectively. The adoption of ASU No. 2014-09 will not have a material impact on the Company’s financial position or results of operations. The adoption will, however, result in the deferral of certain installation revenue and the deferral of certain commission expenses. Additionally, the Company anticipates changes in the composition of revenue resulting from the allocation of value related to bundled services sold at a discount to residential customers. Common Stock of Altice USA At December 31, 2017, the Company had 246,982,292 shares of Class A common stock and 490,086,674 shares of Class B common stock, with a par value of $0.01 , issued and outstanding. Each holder of Class A common stock has one vote per share while holders of Class B common stock have twenty-five votes per share. Class B shares can be converted to Class A common stock at anytime with a conversion ratio of one Class A common share for one Class B common share. At December 31, 2016, the Company had 100 shares of common stock, with a par value of $0.01 , issued and outstanding. Dividends and Distributions The Company may pay dividends on its capital stock only from net profits and surplus as determined under Delaware law. If dividends are paid on the Altice USA common stock, holders of the Altice USA Class A common stock and Altice USA Class B common stock are entitled to receive dividends, and other distributions in cash, stock or property, equally on a per share basis, except that stock dividends with respect to Altice USA Class A common stock may be paid only with shares of Altice USA Class A common stock and stock dividends with respect to Altice USA Class B common stock may be paid only with shares of Altice USA Class B common stock. The Company's indentures restrict the amount of dividends and distributions in respect of any equity interest that can be made. Prior to the Company's IPO, the Company declared and paid cash distributions to stockholders aggregating $839,700 in the second quarter of 2017. In 2016, the Company declared cash distributions of $445,176 of which $365,559 were paid in 2016 and $79,617 were paid in the first quarter of 2017. Net Income (Loss) Per Share Basic net income (loss) per common share attributable to Altice USA stockholders is computed by dividing net income (loss) attributable to Altice USA stockholders by the weighted average number of common shares outstanding during the period. Diluted income per common share attributable to Altice USA stockholders reflects the dilutive effects of stock options. Diluted net loss per common share attributable to Altice USA stockholders excludes the effects of common stock equivalents as they are anti-dilutive. The weighted average number of shares used to compute basic and diluted net income (loss) per share reflect the retroactive impact of the organizational transactions, discussed in Note 1, that occurred prior to the Company's IPO. The following table presents a reconciliation of weighted average shares used in the calculation of the basic and diluted net income per share attributable to Altice USA stockholders for the year ended December 31, 2017: Basic weighted average shares outstanding 696,055,000 Effect of dilution: Stock options — Diluted weighted average shares outstanding 696,055,000 Anti-dilutive shares totaling approximately 14,000 shares, have been excluded from diluted weighted average shares outstanding for the year ended December 31, 2017. Concentrations of Credit Risk Financial instruments that may potentially subject the Company to a concentration of credit risk consist primarily of cash and cash equivalents and trade account receivables. The Company monitors the financial institutions and money market funds where it invests its cash and cash equivalents with diversification among counterparties to mitigate exposure to any single financial institution. The Company's emphasis is primarily on safety of principal and liquidity and secondarily on maximizing the yield on its investments. Management believes that no significant concentration of credit risk exists with respect to its cash and cash equivalents because of its assessment of the creditworthiness and financial viability of the respective financial institutions. The Company did not have a single customer that represented 10% or more of its consolidated revenues for the years ended December 31, 2017 and 2016, or 10% or more of its consolidated net trade receivables at December 31, 2017 and 2016, respectively. Use of Estimates in Preparation of Financial Statements The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. See Note 11 for a discussion of fair value estimates. Reclassifications Certain reclassifications have been made to the 2016 financial statements to conform to the 2017 presentation.

BUSINESS COMBINATIONS

BUSINESS COMBINATIONS	12 Months Ended
	Dec. 31, 2017
Business Combinations [Abstract]
BUSINESS COMBINATIONS	BUSINESS COMBINATIONS Cablevision Acquisition As discussed in Note 1, the Company completed the Cablevision Acquisition on June 21, 2016 . The acquisition was accounted for as a business combination in accordance with ASC Topic 805. Accordingly, the Company recorded the fair value of the assets and liabilities assumed at the date of acquisition. The following table provides the allocation of the total purchase price of $9,958,323 to the identifiable tangible and intangible assets and liabilities of Cablevision based on their respective fair values. The remaining useful lives represent the period over which acquired tangible and intangible assets with a finite life are being depreciated or amortized. Fair Values Estimated Useful Lives Current assets $ 1,923,071 Accounts receivable 271,305 Property, plant and equipment 4,864,621 2-18 years Goodwill 5,842,172 Indefinite-lived cable television franchises 8,113,575 Indefinite-lived Customer relationships 4,850,000 8 to 18 years Trade names (a) 1,010,000 12 years Amortizable intangible assets 23,296 1-15 years Other non-current assets 748,998 Current liabilities (2,311,201 ) Long-term debt (8,355,386 ) Deferred income taxes. (6,832,773 ) Other non-current liabilities (189,355 ) Total $ 9,958,323 (a) See Note 8 for additional information regarding a change in the remaining estimated useful lives of the Company's trade names. The fair value of customer relationships and cable television franchises were valued using derivations of the "income" approach. The future expected earnings from these assets were discounted to their present value equivalent. Trade names were valued using the relief from royalty method, which is based on the present value of the royalty payments avoided as a result of the company owning the intangible asset. The basis for the valuation methods was the Company’s projections. These projections were based on management’s assumptions including among others, penetration rates for pay television, broadband, and telephony; revenue growth rates; operating margins; and capital expenditures. The assumptions are derived based on the Company’s and its peers’ historical operating performance adjusted for current and expected competitive and economic factors surrounding the cable industry. The discount rates used in the analysis are intended to reflect the risk inherent in the projected future cash flows generated by the respective intangible asset. The value is highly dependent on the achievement of the future financial results contemplated in the projections. The estimates and assumptions made in the valuation are inherently subject to significant uncertainties, many of which are beyond the Company's control, and there is no assurance that these results can be achieved. The primary assumptions for which there is a reasonable possibility of the occurrence of a variation that would have significantly affected the value include the assumptions regarding revenue growth, programming expense growth rates, the amount and timing of capital expenditures and the discount rate utilized. In establishing fair value for the vast majority of the acquired property, plant and equipment, the cost approach was utilized. The cost approach considers the amount required to replace an asset by constructing or purchasing a new asset with similar utility, then adjusts the value in consideration of physical depreciation, and functional and economic obsolescence as of the appraisal date. The cost approach relies on management’s assumptions regarding current material and labor costs required to rebuild and repurchase significant components of property, plant and equipment along with assumptions regarding the age and estimated useful lives of property, plant and equipment. The estimates of expected useful lives take into consideration the effects of contractual relationships, customer attrition, eventual development of new technologies and market competition. Long-term debt assumed was valued using quoted market prices (Level 2). The carrying value of most other assets and liabilities approximated fair value as of the acquisition date. As a result of applying business combination accounting, the Company recorded goodwill, which represented the excess of organization value over amounts assigned to the other identifiable tangible and intangible assets arising from expectations of future operational performance and cash generation. The following table presents the unaudited pro forma revenue and net loss for the period presented as if the Cablevision Acquisition had occurred on January 1, 2016: Year Ended December 31, 2016 Revenue $ 9,154,816 Net loss $ (721,257 ) The pro forma results presented above include the impact of additional amortization expense related to the identifiable intangible assets recorded in connection with the Cablevision Acquisition, additional depreciation expense related to the fair value adjustment to property, plant and equipment and the incremental interest resulting from the issuance of debt to fund the Cablevision Acquisition, net of the reversal of interest and amortization of deferred financing costs related to credit facilities that were repaid on the date of the Cablevision Acquisition and the accretion/amortization of fair value adjustments associated with the long-term debt acquired. Other Acquisitions In connection with certain acquisitions completed in the first and fourth quarters of 2017, the Company recorded amortizable intangibles of $45,000 relating to customer relationships and $9,400 relating to other amortizable intangibles. The Company recorded goodwill of $23,948 , which represents the excess of the estimated purchase price of approximately $80,000 (based on current probability of contingent consideration) over the net book value of assets acquired. These values are based on preliminary fair value information currently available, which is subject to change within the measurement period (up to one year from the acquisition date). The acquired entities are included in the Cablevision segment.

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	12 Months Ended
	Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]
SUPPLEMENTAL CASH FLOW INFORMATION	SUPPLEMENTAL CASH FLOW INFORMATION The Company's non-cash investing and financing activities and other supplemental data were as follows: Years Ended December 31, 2017 2016 Non-Cash Investing and Financing Activities: Continuing Operations: Conversion of notes payable to affiliates and related parties of $1,750,000 (together with accrued and unpaid interest and applicable premium) to common stock (See Note 9) $ 2,264,252 $ — Property and equipment accrued but unpaid 171,604 155,653 Distributions declared but not paid — 79,617 Leasehold improvements paid by landlord 3,998 — Notes payable to vendor 40,131 12,449 Capital lease obligations 9,385 — Deferred financing costs accrued but unpaid — 2,570 Supplemental Data: Cash interest paid 1,765,126 1,192,370 Income taxes paid, net 29,006 1,538

RESTRUCTURING AND OTHER EXPENSE

RESTRUCTURING AND OTHER EXPENSE	12 Months Ended
	Dec. 31, 2017
Restructuring and Related Activities [Abstract]
RESTRUCTURING AND OTHER EXPENSE	RESTRUCTURING AND OTHER EXPENSE Restructuring Beginning in the first quarter of 2016, the Company commenced its restructuring initiatives (the "2016 Restructuring Plan") that are intended to simplify the Company's organizational structure. The following table summarizes the activity for the 2016 Restructuring Plan: Severance and Other Employee Related Costs Facility Realignment and Other Costs Total Restructuring charges incurred in 2016 $ 215,420 $ 11,157 $ 226,577 Payments and other (113,301 ) (2,760 ) (116,061 ) Accrual balance at December 31, 2016 102,119 8,397 110,516 Restructuring charges 142,679 7,243 149,922 Payments and other (131,324 ) (6,014 ) (137,338 ) Accrual balance at December 31, 2017 $ 113,474 $ 9,626 $ 123,100 Cumulative costs to date relating to the 2016 Restructuring Plan amounted to $309,297 and $67,202 for our Cablevision segment and Cequel segment, respectively. Transaction Costs For the year ended December 31, 2017, the Company incurred transaction costs of $2,479 related to the acquisition of a business during the first quarter of 2017 and other transactions. For the year ended December 31, 2016, the Company incurred transaction costs of $13,845 , related to the acquisitions of Cablevision and Cequel.

PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
PROPERTY, PLANT AND EQUIPMENT	PROPERTY, PLANT AND EQUIPMENT Costs incurred in the construction of the Company's cable systems, including line extensions to, and upgrade of, the Company's hybrid fiber/coaxial infrastructure, initial placement of the feeder cable to connect a customer that had not been previously connected, and headend facilities are capitalized. These costs consist of materials, subcontractor labor, direct consulting fees, and internal labor and related costs associated with the construction activities. The internal costs that are capitalized consist of salaries and benefits of the Company's employees and the portion of facility costs, including rent, taxes, insurance and utilities, that supports the construction activities. These costs are depreciated over the estimated life of the plant ( 10 to 25 years) and headend facilities ( 4 to 25 years). Costs of operating the plant and the technical facilities, including repairs and maintenance, are expensed as incurred. Installation costs associated with the initial deployment of new customer premise equipment (“CPE”) necessary to provide pay television, broadband or telephony services are also capitalized. These costs include materials, subcontractor labor, internal labor, and other related costs associated with the connection activities. The departmental activities supporting the connection process are tracked through specific metrics, and the portion of departmental costs that is capitalized is determined through a time weighted activity allocation of costs incurred based on time studies used to estimate the average time spent on each activity. These installation costs are amortized over the estimated useful lives of the CPE necessary to provide pay television, broadband or telephony services. In circumstances where CPE tracking is not available, the Company estimates the amount of capitalized installation costs based on whether or not the business or residence had been previously connected to the network. These installation costs are depreciated over their estimated useful life of 3-5 years. The portion of departmental costs related to disconnecting services and removing CPE from a customer, costs related to connecting CPE that has been previously connected to the network and repair and maintenance are expensed as incurred. The estimated useful lives assigned to our property, plant and equipment are reviewed on an annual basis or more frequently if circumstances warrant and such lives are revised to the extent necessary due to changing facts and circumstances. Any changes in estimated useful lives are reflected prospectively. Property, plant and equipment (including equipment under capital leases) consist of the following assets, which are depreciated or amortized on a straight-line basis over the estimated useful lives shown below: December 31, 2017 December 31, 2016 Estimated Useful Lives Customer premise equipment $ 1,093,726 $ 871,049 3 to 5 years Headends and related equipment 1,626,293 1,482,631 4 to 25 years Infrastructure 3,998,503 3,740,494 3 to 25 years Equipment and software 917,698 735,012 3 to 10 years Construction in progress (including materials and supplies) 286,702 84,321 Furniture and fixtures 52,545 45,576 5 to 12 years Transportation equipment 137,886 135,488 5 to 10 years Buildings and building improvements 394,421 390,337 10 to 40 years Leasehold improvements 108,071 104,309 Term of lease Land 47,563 47,715 8,663,408 7,636,932 Less accumulated depreciation and amortization (2,599,579 ) (1,039,297 ) $ 6,063,829 $ 6,597,635 For the years ended December 31, 2017 and December 31, 2016, the Company capitalized certain costs aggregating $151,646 and $75,804 , respectively, related to the acquisition and development of internal use software, which are included in the table above. Depreciation expense on property, plant and equipment (including capital leases) for the years ended December 31, 2017 and 2016 amounted to $1,588,668 and $1,046,896 , respectively. The gross amount of buildings and equipment and related accumulated depreciation recorded under capital leases is presented below: December 31, 2017 2016 Buildings and equipment $ 48,936 $ 53,833 Less accumulated depreciation (12,972 ) (6,306 ) $ 35,964 $ 47,527

OPERATING LEASES

OPERATING LEASES	12 Months Ended
	Dec. 31, 2017
Leases [Abstract]
OPERATING LEASES	OPERATING LEASES The Company leases certain office, production, and transmission facilities, as well as office equipment, under terms of leases expiring at various dates through 2100. The leases generally provide for escalating rentals over the term of the lease plus certain real estate taxes and other costs or credits. Costs associated with such operating leases are recognized on a straight-line basis over the initial lease term. The difference between rent expense and rent paid is recorded as deferred rent. In addition, the Company rents space on utility poles for its operations. The Company's pole rental agreements are for varying terms, and management anticipates renewals as they expire. Rent expense, including pole rentals, for the years ended December 31, 2017 and 2016 amounted to $95,017 and $65,881 , respectively. The minimum future annual payments for all operating leases (with initial or remaining terms in excess of one year) during the next five years and thereafter, including pole rentals from January 1, 2018 through December 31, 2022, at rates now in force are as follows: 2018 $ 74,992 2019 72,142 2020 69,203 2021 63,735 2022 55,234 Thereafter 140,406

INTANGIBLE ASSETS

INTANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
INTANGIBLE ASSETS	INTANGIBLE ASSETS The following table summarizes information relating to the Company's acquired amortizable intangible assets: As of December 31, 2017 As of December 31, 2016 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Useful Lives Customer relationships $ 5,970,884 $ (1,409,021 ) $ 4,561,863 $ 5,925,884 $ (580,276 ) $ 5,345,608 8 to 18 years Trade names (a) 1,067,083 (588,574 ) 478,509 1,066,783 (83,397 ) 983,386 2 to 5 years Other amortizable intangibles 37,060 (10,978 ) 26,082 26,743 (3,093 ) 23,650 1 to 15 years $ 7,075,027 $ (2,008,573 ) $ 5,066,454 $ 7,019,410 $ (666,766 ) $ 6,352,644 (a) On May 23, 2017, Altice N.V. announced the adoption of a global brand to replace the Company's brands in the future, reducing the remaining useful lives of these trade name intangibles to three years from the date of the adoption, which reflected one year as an in-use asset and two years as a defensive asset. In December 2017, the Company made a decision to postpone the adoption of a global brand that would have replaced the Optimum brand, increasing the useful life of the Optimum trade name intangible asset to 5 years . Amortization expense for the years ended December 31, 2017 and 2016 and aggregated $1,341,807 and $653,410 , respectively. The following table sets forth the estimated amortization expense on intangible assets for the periods presented: Estimated amortization expense Year Ending December 31, 2018 $ 873,133 Year Ending December 31, 2019 777,846 Year Ending December 31, 2020 696,240 Year Ending December 31, 2021 616,718 Year Ending December 31, 2022 537,100 The following table summarizes information relating to the Company's acquired indefinite-lived intangible assets as of December 31, 2017 : As of December 31, 2017 As of December 31, 2016 Cablevision Cequel Total Cablevision Cequel Total Cable television franchises $ 8,113,575 $ 4,906,506 $ 13,020,081 $ 8,113,575 $ 4,906,506 $ 13,020,081 Goodwill 5,843,019 2,153,741 7,996,760 5,838,959 2,153,741 7,992,700 Total $ 13,956,594 $ 7,060,247 $ 21,016,841 $ 13,952,534 $ 7,060,247 $ 21,012,781 The carrying amount of goodwill is presented below: Gross goodwill as of January 1, 2016 $ 2,040,402 Goodwill recorded in connection with Cablevision Acquisition 5,838,959 Adjustments to purchase accounting relating to Cequel Acquisition 113,339 Gross goodwill as of January 1, 2017 7,992,700 Goodwill recorded in connection with acquisitions in the first and fourth quarters of 2017 (Cablevision Segment) 23,948 Adjustments to purchase accounting relating to Cablevision Acquisition 3,213 Transfer of Cablevision goodwill related to Altice Technical Services US Corp. (See Note 14 for further details) (23,101 ) Net goodwill as of December 31, 2017 $ 7,996,760

DEBT

DEBT	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
DEBT	DEBT CSC Holdings Credit Facilities In connection with the Cablevision Acquisition, in October 2015, Finco, a wholly-owned subsidiary of the Company, which merged with and into CSC Holdings on June 21, 2016, entered into a senior secured credit facility, which provides U.S. dollar term loans currently in an aggregate principal amount of $3,000,000 ( $2,985,000 outstanding at December 31, 2017) (the “CVC Term Loan Facility”, and the term loans extended under the CVC Term Loan Facility, the “CVC Term Loans”) and U.S. dollar revolving loan commitments in an aggregate principal amount of $2,300,000 (the “CVC Revolving Credit Facility” and, together with the Term Loan Facility, the “CVC Credit Facilities”), which are governed by a credit facilities agreement entered into by, inter alios , CSC Holdings, certain lenders party thereto and JPMorgan Chase Bank, N.A. as administrative agent and security agent (as amended, restated, supplemented or otherwise modified on June 20, 2016, June 21, 2016, July 21, 2016, September 9, 2016, December 9, 2016 and March 15, 2017, respectively, and as further amended, restated, supplemented or otherwise modified from time to time, the “CVC Credit Facilities Agreement”). The amendment to the CVC Credit Facilities Agreement entered into on September 9, 2016, extended the maturity date of the CVC Term Loan Facility to October 11, 2024. In October 2016, CSC Holdings used the net proceeds from the sale of $1,310,000 aggregate principal amount of 5.5% senior guaranteed notes due 2027 (the ‘‘2027 Guaranteed Notes’’) (after the deduction of fees and expenses) to prepay outstanding loans under the CSC Holdings Term Credit Facility that were not extended pursuant to this amendment. In connection with the prepayment of the Term Credit Facility, the Company wrote-off the deferred financing costs and the unamortized discount related to the existing term loan aggregating $102,894 . Additionally, the Company recorded deferred financing costs and an original issue discount of $7,249 and $6,250 , respectively, which are both being amortized to interest expense over the term of the Term Loan Facility. The amendment to the CVC Credit Facilities Agreement entered into on March 15, 2017 (“Extension Amendment”) increased the Term Loan by $500,000 to $3,000,000 and the maturity date for this facility was extended to July 17, 2025. The closing of the Extension Amendment occurred in April 2017 and the proceeds were used to refinance the entire $2,493,750 principal amount of existing Term Loans and redeem $500,000 of the 8.625% Senior Notes due September 2017 issued by Cablevision. In connection with the Extension Amendment and the redemption of the senior notes, the Company recorded a loss on extinguishment of debt and write-off of deferred financing costs aggregating $18,976 . During the year ended December 31, 2017, CSC Holdings borrowed $1,350,000 under its revolving credit facility ( $500,000 was used to make cash distributions to its stockholders) and made voluntary repayments aggregating $1,075,256 with cash on hand. Under the Extension Amendment, the Company is required to make scheduled quarterly payments equal to 0.25% (or $7,500 ) of the principal amount of the Term Loan, beginning with the fiscal quarter ended September 30, 2017, with the remaining balance scheduled to be paid on July 17, 2025. The CVC Credit Facilities permit CSC Holdings to request revolving loans, swing line loans or letters of credit from the revolving lenders, swingline lenders or issuing banks, as applicable, thereunder, from time to time prior to November 30, 2021, unless the commitments under the CVC Revolving Credit Facility have been previously terminated. Loans comprising each eurodollar borrowing or alternate base rate borrowing, as applicable, bear interest at a rate per annum equal to the adjusted LIBO rate or the alternate base rate, as applicable, plus the applicable margin, where the applicable margin is: • in respect of the CVC Term Loans, (i) with respect to any alternate base rate loan, 1.25% per annum and (ii) with respect to any eurodollar loan, 2.25% per annum, and • in respect of the CVC Revolving Credit Facility loans (i) with respect to any alternate base rate loan, 2.25% per annum and (ii) with respect to any eurodollar loan, 3.25% per annum. The CVC Credit Facilities Agreement requires the prepayment of outstanding CVC Term Loans, subject to certain exceptions and deductions, with (i) 100% of the net cash proceeds of certain asset sales, subject to reinvestment rights and certain other exceptions; and (ii) commencing with the fiscal year ending December 31, 2017, a pari ratable share (based on the outstanding principal amount of the Term Loans divided by the sum of the outstanding principal amount of all pari passu indebtedness and the Term Loans) of 50% of annual excess cash flow, which will be reduced to 0% if the consolidated net senior secured leverage ratio of CSC Holdings is less than or equal to 4.5 to 1. The obligations under the CVC Credit Facilities are guaranteed by each restricted subsidiary of CSC Holdings (other than CSC TKR, LLC and its subsidiaries and certain excluded subsidiaries) (the “Initial Guarantors”) and, subject to certain limitations, will be guaranteed by each future material wholly-owned restricted subsidiary of CSC Holdings. The obligations under the CVC Credit Facilities (including any guarantees thereof) are secured on a first priority basis, subject to any liens permitted by the Credit Facilities, by capital stock held by CSC Holdings or any guarantor in certain subsidiaries of CSC Holdings, subject to certain exclusions and limitations. The CVC Credit Facilities Agreement includes certain negative covenants which, among other things and subject to certain significant exceptions and qualifications, limit CSC Holdings' ability and the ability of its restricted subsidiaries to: (i) incur or guarantee additional indebtedness, (ii) make investments, (iii) create liens, (iv) sell assets and subsidiary stock, (v) pay dividends or make other distributions or repurchase or redeem our capital stock or subordinated debt, (vi) engage in certain transactions with affiliates, (vii) enter into agreements that restrict the payment of dividends by subsidiaries or the repayment of intercompany loans and advances; and (viii) engage in mergers or consolidations. In addition, the CVC Revolving Credit Facility includes a financial maintenance covenant solely for the benefit of the lenders under the CVC Revolving Credit Facility consisting of a maximum consolidated net senior secured leverage ratio of CSC Holdings and its restricted subsidiaries of 5.0 to 1.0. The financial covenant will be tested on the last day of any fiscal quarter, but only if on such day there are outstanding borrowings under the CVC Revolving Credit Facility (including swingline loans but excluding any cash collateralized letters of credit and undrawn letters of credit not to exceed $15,000 ). The CVC Credit Facilities Agreement also contains certain customary representations and warranties, affirmative covenants and events of default (including, among others, an event of default upon a change of control). If an event of default occurs, the lenders under the CVC Credit Facilities will be entitled to take various actions, including the acceleration of amounts due under the CVC Credit Facilities and all actions permitted to be taken by a secured creditor. CSC Holdings was in compliance with all of its financial covenants under the CVC Credit Facilities as of December 31, 2017 . Cequel Credit Facilities On June 12, 2015, Altice US Finance I Corporation, an indirect wholly-owned subsidiary of Cequel, entered into a senior secured credit facility which currently provides term loans in an aggregate principal amount of $1,265,000 ( $1,258,675 outstanding at December 31, 2017) (the “Cequel Term Loan Facility” and the term loans extended under the Cequel Term Loan Facility, the “Cequel Term Loans”) and revolving loan commitments in an aggregate principal amount of $350,000 (the “Cequel Revolving Credit Facility” and, together with the Cequel Term Loan Facility, the “Cequel Credit Facilities”) which are governed by a credit facilities agreement entered into by, inter alios, Altice US Finance I Corporation, certain lenders party thereto and JPMorgan Chase Bank, N.A. (as amended, restated, supplemented or otherwise modified on October 25, 2016, December 9, 2016 and March 15, 2017, and as further amended, restated, supplemented or modified from time to time, the “Cequel Credit Facilities Agreement”). The amendment to the Cequel Credit Facilities Agreement entered into on March 15, 2017 (“Cequel Extension Amendment”) increased the Term Loan by $450,000 to $1,265,000 and the maturity date for this facility was extended to July 28, 2025. The closing of the Extension Amendment occurred in April 2017 and the proceeds were used to refinance the entire $812,963 principal amount of loans under the Term Loan and redeem $450,000 of the 6.375% Senior Notes due September 15, 2020. In connection with the Cequel Extension Amendment and the redemption of the senior notes, the Company recorded a loss on extinguishment of debt and write-off of deferred financings costs aggregating $28,684 . Under the Cequel Extension Amendment, the Company is required to make scheduled quarterly payments equal to 0.25% (or $3,163 ) of the principal amount of the Cequel Term Loan, beginning with the fiscal quarter ended September 30, 2017, with the remaining balance scheduled to be paid on July 28, 2025. Loans comprising each eurodollar borrowing or alternate base rate borrowing, as applicable, bear interest at a rate per annum equal to the adjusted LIBO rate or the alternate base rate, as applicable, plus the applicable margin, where the applicable margin is: • in respect of the Cequel Term Loans, (i) with respect to any alternate base rate loan, 1.25% per annum and (ii) with respect to any eurodollar loan, 2.25% per annum, and • in respect of Cequel Revolving Credit Facility loans (i) with respect to any alternate base rate loan, 2.25% per annum and (ii) with respect to any eurodollar loan, 3.25% per annum. The Cequel Credit Facilities Agreement requires the prepayment of outstanding Term Loans, subject to certain exceptions and deductions, with (i) 100% of the net cash proceeds of certain asset sales, subject to reinvestment rights and certain other exceptions; and (ii) a pari ratable share (based on the outstanding principal amount of the Cequel Term Loans divided by the sum of the outstanding principal amount of all pari passu indebtedness and the Cequel Term Loans) of 50% of annual excess cash flow, which will be reduced to 0% if the consolidated net senior secured leverage ratio is less than or equal to 4.5 :1. The debt under the Cequel Credit Facility is secured by a first priority security interest in the capital stock of Cequel Communications, LLC and substantially all of the present and future assets of Cequel Communications, LLC and its restricted subsidiaries, and is guaranteed by Cequel Communications Holdings II, LLC, an indirect subsidiary of Cequel (the "Parent Guarantor"), as well as all of Cequel Communications, LLC's existing and future direct and indirect subsidiaries, subject to certain exceptions set forth in the Cequel Credit Facilities Agreement. The Cequel Credit Facilities Agreement contains customary representations, warranties and affirmative covenants. In addition, the Cequel Credit Facilities Agreement contains restrictive covenants that limit, among other things, the ability of Cequel Communications, LLC and its subsidiaries to incur indebtedness, create liens, engage in mergers, consolidations and other fundamental changes, make investments or loans, engage in transactions with affiliates, pay dividends, and make acquisitions and dispose of assets. The Cequel Credit Facilities Agreement also contains a maximum senior secured leverage maintenance covenant of 5.0 to 1.0. Additionally, the Cequel Credit Facilities Agreement contains customary events of default, including failure to make payments, breaches of covenants and representations, cross defaults to other indebtedness, unpaid judgments, changes of control and bankruptcy events. The lenders’ commitments to fund amounts under the revolving credit facility are subject to certain customary conditions. As of December 31, 2017 , Cequel was in compliance with all of its financial covenants under the Cequel Credit Facilities Agreement. The following table provides details of the Company's outstanding credit facility debt: Carrying Amount (a) Maturity Date Interest Rate Principal December 31, 2017 December 31, 2016 CSC Holdings Restricted Group: Revolving Credit Facility (b) $20,000 on October 9, 2020, remaining balance on November 30, 2021 4.75% $ 450,000 $ 425,488 $ 145,013 Term Loan Facility July 17, 2025 3.74% 2,985,000 2,967,818 2,486,874 Cequel: Revolving Credit Facility (c) November 30, 2021 — — — — Term Loan Facility July 28, 2025 3.82% 1,258,675 1,250,217 812,903 $ 4,693,675 4,643,523 3,444,790 Less: Current portion 42,650 33,150 Long-term debt $ 4,600,873 $ 3,411,640 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts. (b) At December 31, 2017 , $115,973 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $1,734,027 of the facility was undrawn and available, subject to covenant limitations. (c) At December 31, 2017 , $13,500 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $336,500 of the facility was undrawn and available, subject to covenant limitations. Senior Guaranteed Notes, Senior Secured Notes, and Senior Notes and Debentures The following table summarizes the Company's senior guaranteed notes, senior secured notes and senior notes and debentures: Interest Rate Principal Amount Carrying Amount (a) Issuer Date Issued Maturity Date December 31, 2017 December 31, 2016 Senior notes: CSC Holdings (b)(f)(n) February 6, 1998 February 15, 2018 7.875 % $ 300,000 $ 301,184 $ 310,334 CSC Holdings (b)(f) July 21, 1998 July 15, 2018 7.625 % 500,000 507,744 521,654 CSC Holdings (c)(f) February 12, 2009 February 15, 2019 8.625 % 526,000 541,165 553,804 CSC Holdings (c)(f) November 15, 2011 November 15, 2021 6.750 % 1,000,000 960,146 951,702 CSC Holdings (c)(f) May 23, 2014 June 1, 2024 5.250 % 750,000 660,601 650,193 CSC Holdings (e) October 9, 2015 January 15, 2023 10.125 % 1,800,000 1,777,914 1,774,750 CSC Holdings (e)(l) October 9, 2015 October 15, 2025 10.875 % 1,684,221 1,661,135 1,970,379 Senior guaranteed notes: CSC Holdings (e) October 9, 2015 October 15, 2025 6.625 % 1,000,000 986,717 985,469 CSC Holdings (g) September 23, 2016 April 15, 2027 5.500 % 1,310,000 1,304,468 1,304,025 Senior notes: Cablevision (k)(o) September 23, 2009 September 15, 2017 8.625 % — — 926,045 Cablevision (c)(f)(n)(o) April 15, 2010 April 15, 2018 7.750 % 750,000 754,035 767,545 Cablevision (c)(f)(o) April 15, 2010 April 15, 2020 8.000 % 500,000 492,009 488,992 Cablevision (c)(f)(o) September 27, 2012 September 15, 2022 5.875 % 649,024 572,071 559,500 Senior notes: Cequel Communications Holdings I and Cequel Capital (d)(m)(p) Oct. 25, 2012 Dec. 28, 2012 September 15, 2020 6.375 % 1,050,000 1,027,493 1,457,439 Cequel Communications Holdings I and Cequel Capital (d)(p) May 16, 2013 Sept. 9, 2014 December 15, 2021 5.125 % 1,250,000 1,138,870 1,115,767 Cequel Communications Holdings I and Cequel Capital (i)(p) June 12, 2015 July 15, 2025 7.750 % 620,000 604,374 602,925 Senior secured notes: Altice US Finance I Corporation (h)(p) June 12, 2015 July 15, 2023 5.375 % 1,100,000 1,082,482 1,079,869 Altice US Finance I Corporation (j)(p) April 26, 2016 May 15, 2026 5.500 % 1,500,000 1,488,024 1,486,933 $ 16,289,245 15,860,432 17,507,325 Less: Current portion 507,744 926,045 Long-term debt $ 15,352,688 $ 16,581,280 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums. (b) The debentures are not redeemable by CSC Holdings prior to maturity. (c) Notes are redeemable at any time at a specified "make-whole" price plus accrued and unpaid interest to the redemption date. (d) The Company may redeem some or more of all the notes at the redemption price set forth in the relevant indenture, plus accrued and unpaid interest. (e) The Company may redeem some or all of the 2023 Notes at any time on or after January 15, 2019, and some or all of the 2025 Notes and 2025 Guaranteed Notes at any time on or after October 15, 2020, at the redemption prices set forth in the relevant indenture, plus accrued and unpaid interest, if any. The Company may also redeem up to 40% of each series of the Cablevision Acquisition Notes using the proceeds of certain equity offerings before October 15, 2018, at a redemption price equal to 110.125% for the 2023 Notes, 110.875% for the 2025 Notes and 106.625% for the 2025 Guaranteed Notes, in each case plus accrued and unpaid interest. In addition, at any time prior to January 15, 2019, CSC Holdings may redeem some or all of the 2023 Notes, and at any time prior to October 15, 2020, the Company may redeem some or all of the 2025 Notes and the 2025 Guaranteed Notes, at a price equal to 100% of the principal amount thereof, plus a “make whole” premium specified in the relevant indenture plus accrued and unpaid interest. (f) The carrying value of the notes was adjusted to reflect their fair value on the Cablevision Acquisition Date (aggregate reduction of $52,788 ). (g) The 2027 Guaranteed Notes are redeemable at any time on or after April 15, 2022 at the redemption prices set forth in the indenture, plus accrued and unpaid interest, if any. In addition, up to 40% may be redeemed for each series of the 2027 Guaranteed Notes using the proceeds of certain equity offerings before October 15, 2019, at a redemption price equal to 105.500% , plus accrued and unpaid interest. (h) Some or all of these notes may be redeemed at any time on or after July 15, 2018, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before July 15, 2018, at a redemption price equal to 105.375% . (i) Some or all of these notes may be redeemed at any time on or after July 15, 2020, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before July 15, 2018, at a redemption price equal to 107.750% . (j) Some or all of these notes may be redeemed at any time on or after May 15, 2021, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before May 15, 2019, at a redemption price equal to 105.500% . (k) In April 2017, the Company redeemed $500,000 of the senior notes from proceeds from the CVC Term Loan facility. In September 2017, these senior notes matured and the Company repaid the remaining principal balance of $400,000 . (l) In July 2017, the Company used approximately $350,120 of the proceeds from the IPO to fund the redemption of $315,779 principal amount of CSC Holdings senior notes due October 2025 and the related call premium of approximately $34,341 which was recorded as a loss on extinguishment of debt. The Company also recorded a write-off of deferred financings costs in connection with this redemption aggregating $4,516 . (m) In April 2017, the Company redeemed $450,000 of the senior notes from proceeds from the Cequel Term Loan facility. (n) As a result of the repayment of these notes in February 2018, discussed in Note 20, the carrying amount of these Notes has been classified as long-term indebtedness. (o) The issuers of these notes have no ability to service interest or principal on the notes, other than through any dividends or distributions received from CSC Holdings. CSC Holdings is restricted, in certain circumstances, from paying dividends or distributions to the issuers by the terms of the CVC Credit Facilities Agreement. (p) The issuers of these notes have no ability to service interest or principal on the notes, other than through any contributions/distributions from Cequel Communications, LLC (an indirect subsidiary of Cequel and the parent of Altice US Finance I). Cequel Communications, LLC is restricted in certain circumstances, from paying dividends or distributions to the issuers by the terms of the Cequel Credit Facilities Agreement. The indentures under which the senior notes and debentures were issued contain various covenants. The Company was in compliance with all of its financial covenants under these indentures as of December 31, 2017 . CSC Holdings 5.5% Senior Guaranteed Notes due 2027 In September 2016, CSC Holdings issued $1,310,000 aggregate principal amount of 5.50% senior guaranteed notes due April 15, 2027. The 2027 Guaranteed Notes are senior unsecured obligations and rank pari passu in right of payment with all of the existing and future senior indebtedness, including the existing senior notes and the Credit Facilities and rank senior in right of payment to all of existing and future subordinated indebtedness. As discussed above , in October 2016, CSC Holdings used the proceeds from the issuance of the 2027 Guaranteed Notes (after the deduction of fees and expenses) to prepay the outstanding loans under the CVC Term Credit Facility that were not extended pursuant to the extension amendment on September 9,2016. In connection with the issuance of the 2027 Guaranteed Notes, the Company incurred deferred financing costs of approximately $5,575 , which are being amortized to interest expense over the term of the 2027 Guaranteed Notes. Cablevision Acquisition Notes The $1,000,000 principal amount of the 2025 Guaranteed Notes bear interest at a rate of 6.625% per annum and were issued at a price of 100.00% . Interest on the 2025 Guaranteed Notes is payable semi-annually on January 15 and July 15, commencing on July 15, 2016. These 2025 Guaranteed Notes are guaranteed on a senior basis by the Initial Guarantors. The $1,800,000 principal amount of the 2023 Notes and $2,000,000 principal amount of the 2025 Notes, bear interest at a rate of 10.125% and 10.875% , respectively, per annum and were issued at prices of 100.00% . Interest on the 2023 Notes and 2025 Notes is payable semi-annually on January 15 and July 15, which began on July 15, 2016. Deferred financing costs of approximately $76,579 incurred in connection with the issuance of the Cablevision Acquisition Notes are being amortized to interest expense over the term of the Cablevision Acquisition Notes. The indentures under which the Cablevision and CSC Holdings Senior Guaranteed Notes and Senior Notes and Debentures were issued contain certain covenants and agreements with respect to investment grade debt securities, including limitations on the ability of CSC Holdings and its restricted subsidiaries to (i) incur or guarantee additional indebtedness, (ii) make investments or other restricted payments, (iii) create liens, (iv) sell assets and subsidiary stock, (v) pay dividends or make other distributions or repurchase or redeem our capital stock or subordinated debt, (vi) engage in certain transactions with affiliates, (vii) enter into agreements that restrict the payment of dividends by subsidiaries or the repayment of intercompany loans and advances, and (viii) engage in mergers or consolidations, in each case subject to certain exceptions. The indentures also contain certain customary events of default. If an event of default occurs, the obligations under the Cablevision Acquisition Notes may be accelerated. As of December 31, 2017, Cablevision and CSC Holdings were in compliance with all of its financial covenants under the indentures under which the senior notes and debentures and senior guaranteed notes were issued. Cequel Senior Secured Notes On June 12, 2015, Altice US Finance I Corporation, an indirect subsidiary of Altice N.V., issued $1,100,000 principal amount of senior secured notes (the ‘‘Cequel 2023 Senior Secured Notes’’), the proceeds from which were placed in escrow to finance a portion of the purchase price for the Cequel Acquisition. The Cequel 2023 Senior Secured Notes bear interest at a rate of 5.375% per annum and were issued at a price of 100.00% . Interest on the Cequel 2023 Senior Secured Notes is payable semi-annually on January 15 and July 15 of each year. Following the consummation of the Cequel Acquisition and related transactions the equity interests in Altice US Finance I Corporation were contributed through one or more intermediary steps to Suddenlink, and the Senior Secured Notes were guaranteed by Cequel Communications Holdings II LLC, Suddenlink and certain of the subsidiaries of Suddenlink and are secured by certain assets of Cequel Communications Holdings II LLC, Suddenlink and its subsidiaries. On April 26, 2016, Altice US Finance I Corporation issued $1,500,000 aggregate principal amount of senior secured notes (the ‘‘Cequel 2026 Senior Secured Notes’’). The proceeds from the sale were used to repay the $1,477,200 remaining balance under the previous credit facility and to pay related fees and expenses. The Cequel 2026 Senior Secured Notes mature on May 15, 2026 and bear interest at a rate of 5.50% annually. Interest on the Cequel 2026 Senior Secured Notes is payable semi-annually on May 15 and November 15 of each year, commencing on November 15, 2016. Deferred financing costs recorded in connection with the issuance of these notes amounted to $13,773 and are being amortized over the term of the notes. Cequel Senior Notes On June 12, 2015, Altice US Finance II Corporation, an indirect subsidiary of Altice N.V., issued $300,000 principal amount of the Cequel 2025 Senior Notes, the proceeds from which were placed in escrow, to finance a portion of the purchase price for the Cequel Acquisition. The Cequel 2025 Senior Notes were issued by the Cequel 2025 Senior Notes Issuer, an indirect subsidiary of Altice N.V., bear interest at a rate of 7.75% per annum and were issued at a price of 100.00% . Interest on the Cequel 2025 Senior Notes is payable semi-annually on January 15 and July 15 of each year. Following the consummation of the Cequel Acquisition and related transactions, the Cequel 2025 Senior Notes Issuer merged into Cequel, the Cequel 2025 Senior Notes became the obligations of Cequel and Cequel Capital Corporation became the co-issuer of the Cequel 2025 Senior Notes. On June 12, 2015, Altice US Finance S.A., an indirect subsidiary of Altice N.V. issued $320,000 principal amount of the 7.75% Senior Notes due 2025 (the ‘‘Holdco Notes’’), the proceeds from which were placed in escrow, to finance a portion of the purchase price for the Cequel Acquisition. The Holdco Notes bear interest at a rate of 7.75% per annum and were issued at a price of 98.275% . Interest on the Holdco Notes is payable semi-annually on January 15 and July 15 of each year. The Holdco Notes were automatically exchanged into an equal aggregate principal amount of Cequel 2025 Senior Notes at Cequel during the second quarter of 2016. The Cequel Indentures contain certain covenants, agreements and events of default which are customary with respect to non-investment grade debt securities, including limitations on the Company’s ability to incur additional indebtedness, pay dividends on or make other distributions or repurchase the Company’s capital stock, make certain investments, enter into certain types of transactions with affiliates, create liens and sell certain assets or merge with or into other companies. Notes Payable to Affiliates and Related Parties On June 21, 2016, in connection with the Cablevision Acquisition, the Company issued notes payable to affiliates and related parties aggregating $1,750,000 , of which $875,000 bore interest at 10.75% and matured on December 20, 2023 and $875,000 bore interest at 11% and matured on December 20, 2024. As discussed in Note 1, in connection with the Company's IPO, the Company converted the notes payable to affiliates and related parties (together with accrued and unpaid interest of $529 and applicable premium of $513,723 ) into shares of the Company’s common stock at the IPO price. The premium was recorded as a loss on extinguishment of debt on the Company's statement of operations for the year ended December 31, 2017. In connection with the conversion of the notes, the Company recorded a credit to paid in capital of $2,264,252 . For the year ended December 31, 2017 and 2016, the Company recognized interest expense of $90,405 and $102,557 related to these notes prior to their conversion. Summary of Debt Maturities The future maturities of debt payable by the Company under its various debt obligations outstanding as of December 31, 2017 , including notes payable, collateralized indebtedness (see Note 10), and capital leases, are as follows: Years Ending December 31, Cablevision Cequel Total 2018 $ 1,619,094 $ 16,518 $ 1,635,612 2019 565,604 18,310 583,914 2020 552,902 1,062,713 1,615,615 2021 2,921,269 1,262,723 4,183,992 2022 680,700 12,734 693,434 Thereafter 9,380,513 4,416,270 13,796,783 The amounts in the table above do not include the effects of the debt transactions discussed in Note 20.

DERIVATIVE CONTRACTS AND COLLAT

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS	12 Months Ended
	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS	DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS Prepaid Forward Contracts The Company has entered into various transactions to limit the exposure against equity price risk on its shares of Comcast Corporation ("Comcast") common stock. The Company has monetized all of its stock holdings in Comcast through the execution of prepaid forward contracts, collateralized by an equivalent amount of the respective underlying stock. At maturity, the contracts provide for the option to deliver cash or shares of Comcast stock with a value determined by reference to the applicable stock price at maturity. These contracts, at maturity, are expected to offset declines in the fair value of these securities below the hedge price per share while allowing the Company to retain upside appreciation from the hedge price per share to the relevant cap price. The Company received cash proceeds upon execution of the prepaid forward contracts discussed above which has been reflected as collateralized indebtedness in the accompanying consolidated balance sheets. In addition, the Company separately accounts for the equity derivative component of the prepaid forward contracts. These equity derivatives have not been designated as hedges for accounting purposes. Therefore, the net fair values of the equity derivatives have been reflected in the accompanying consolidated balance sheets as an asset or liability and the net increases or decreases in the fair value of the equity derivative component of the prepaid forward contracts are included in gain (loss) on derivative contracts in the accompanying consolidated statements of operations. All of the Company's monetization transactions are obligations of its wholly-owned subsidiaries that are not part of CSC Holdings' Restricted Group; however, CSC Holdings has provided guarantees of the subsidiaries' ongoing contract payment expense obligations and potential payments that could be due as a result of an early termination event (as defined in the agreements). If any one of these contracts were terminated prior to its scheduled maturity date, the Company would be obligated to repay the fair value of the collateralized indebtedness less the sum of the fair values of the underlying stock and equity collar, calculated at the termination date. As of December 31, 2017 , the Company did not have an early termination shortfall relating to any of these contracts. The Company monitors the financial institutions that are counterparties to its equity derivative contracts. All of the counterparties to such transactions carry investment grade credit ratings as of December 31, 2017 . Put/Call Options In the third quarter of 2017, the Company entered into a put-call contract that expired in the third quarter of 2018 whereby the Company sold a put option and purchased a call option with the same strike price. These put-call options were settled as of December 31, 2017 and the Company recorded a loss of $97,410 for the year ended December 31, 2017, which represents the difference between the strike price and the closing price of the underlying shares. Interest Rate Swap Contracts In June 2016, the Company entered into two fixed to floating interest rate swap contracts. One fixed to floating interest rate swap is converting $750,000 from a fixed rate of 1.6655% to six-month LIBO rate and a second tranche of $750,000 from a fixed rate of 1.68% to six-month LIBO rate. The objective of these swaps is to cover the exposure of the Cequel 2026 Senior Secured Notes issued by Cequel to changes in the market interest rate. These swap contracts were not designated as hedges for accounting purposes. Accordingly, the changes in the fair value of these interest rate swap contracts are recorded through the statements of operations. The Company does not hold or issue derivative instruments for trading or speculative purposes. The following represents the location of the assets and liabilities associated with the Company's derivative instruments within the consolidated balance sheets: Asset Derivatives Liability Derivatives Derivatives Not Designated as Hedging Instruments Balance Sheet Location Fair Value at December 31, 2017 Fair Value at December 31, 2016 Fair Value at December 31, 2017 Fair Value at December 31, 2016 Prepaid forward contracts Derivative contracts, current $ 52,545 $ 352 $ (52,545 ) $ (13,158 ) Prepaid forward contracts Derivative contracts, long-term — 10,604 (109,504 ) — Interest rate swap contracts Liabilities under derivative contracts, long-term — — (77,902 ) (78,823 ) $ 52,545 $ 10,956 $ (239,951 ) $ (91,981 ) Loss related to the Company's derivative contracts related to the Comcast common stock for the years ended December 31, 2017 and 2016 of $(138,920) and $(53,696) , respectively, are reflected in gain (loss) on derivative contracts, net in the Company's consolidated statements of operations. For the years ended December 31, 2017 and 2016, the Company recorded a gain on investments of $237,354 and $141,896 , respectively, primarily representing the net increase in the fair values of the investment securities pledged as collateral. For the years ended December 31, 2017 and 2016, the Company recorded a gain (loss) on interest rate swap contracts of $5,482 and $(72,961) , respectively. Settlements of Collateralized Indebtedness The following table summarizes the settlement of the Company's collateralized indebtedness relating to Comcast shares that were settled by delivering cash equal to the collateralized loan value, net of the value of the related equity derivative contracts during the year ended December 31, 2017 : Number of shares (a) 26,815,368 Collateralized indebtedness settled $ (774,703 ) Derivatives contracts settled (56,356 ) (831,059 ) Proceeds from new monetization contracts 838,794 Net cash proceeds $ 7,735 (a) Share amounts are adjusted for the 2 for 1 stock split in February 2017. The cash to settle the collateralized indebtedness was obtained from the proceeds of new monetization contracts covering an equivalent number of Comcast shares. The terms of the new contracts allow the Company to retain upside participation in Comcast shares up to each respective contract's upside appreciation limit with downside exposure limited to the respective hedge price. In April 2017, the Company entered into new monetization contracts related to 32,153,118 shares of Comcast common stock held by Cablevision, which synthetically reversed the existing contracts related to these shares (the "Synthetic Monetization Closeout"). As the existing collateralized debt matures, the Company will settle the contracts with proceeds received from the new monetization contracts. The new monetization contracts mature on April 28, 2021. The new monetization contracts provide the Company with downside protection below the hedge price of $35.47 and upside benefit of stock price appreciation up to $44.72 per share. In connection with the execution of these contracts, the Company recorded (i) the fair value of the equity derivative contracts of $53,316 (in a net asset position), (ii) notes payable of $111,657 , representing the fair value of the existing equity derivative contracts, in a liability position, and (iii) a discount on notes payable of $58,341 .

FAIR VALUE MEASUREMENT

FAIR VALUE MEASUREMENT	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENT	FAIR VALUE MEASUREMENT The fair value hierarchy is based on inputs to valuation techniques that are used to measure fair value that are either observable or unobservable. Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity's pricing based upon their own market assumptions. The fair value hierarchy consists of the following three levels: • Level I - Quoted prices for identical instruments in active markets. • Level II - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable. • Level III - Instruments whose significant value drivers are unobservable. The following table presents for each of these hierarchy levels, the Company's financial assets and financial liabilities that are measured at fair value on a recurring basis: Fair Value Hierarchy December 31, 2017 December 31, 2016 Assets: Money market funds (of which $14,700 is classified as restricted cash as of December 31, 2016) Level I $ 5,949 $ 100,139 Investment securities pledged as collateral Level I 1,720,357 1,483,030 Prepaid forward contracts Level II 52,545 10,956 Liabilities: Prepaid forward contracts Level II 162,049 13,158 Interest rate swap contracts Level II 77,902 78,823 Contingent consideration related to 2017 acquisitions Level III 32,233 — The Company's cash equivalents, investment securities and investment securities pledged as collateral are classified within Level I of the fair value hierarchy because they are valued using quoted market prices. The Company's derivative contracts and liabilities under derivative contracts on the Company's balance sheets are valued using market-based inputs to valuation models. These valuation models require a variety of inputs, including contractual terms, market prices, yield curves, and measures of volatility. When appropriate, valuations are adjusted for various factors such as liquidity, bid/offer spreads and credit risk considerations. Such adjustments are generally based on available market evidence. Since model inputs can generally be verified and do not involve significant management judgment, the Company has concluded that these instruments should be classified within Level II of the fair value hierarchy. The fair value of the contingent consideration related to acquisitions in the first and fourth quarters of 2017 of $30,000 and $2,233 , respectively, was estimated based on a probability assessment of attaining the targets. The estimated amount recorded as of December 31, 2017 is the full contractual amount for the first quarter acquisition and approximately 51% of the contractual amount for the acquisition that occurred in the fourth quarter. Fair Value of Financial Instruments The following methods and assumptions were used to estimate fair value of each class of financial instruments for which it is practicable to estimate: Credit Facility Debt, Collateralized Indebtedness, Senior Notes and Debentures, Senior Secured Notes, Senior Guaranteed Notes, Notes Payable to Affiliates and Related Parties and Notes Payable The fair values of each of the Company's debt instruments are based on quoted market prices for the same or similar issues or on the current rates offered to the Company for instruments of the same remaining maturities. The fair value of notes payable is based primarily on the present value of the remaining payments discounted at the borrowing cost. The carrying values, estimated fair values, and classification under the fair value hierarchy of the Company's financial instruments, excluding those that are carried at fair value in the accompanying consolidated balance sheets, are summarized as follows: December 31, 2017 December 31, 2016 Fair Value Hierarchy Carrying Amount (a) Estimated Fair Value Carrying Amount (a) Estimated Fair Value Altice USA debt instruments: Notes payable to affiliates and related parties Level II $ — $ — $ 1,750,000 $ 1,837,876 CSC Holdings debt instruments: Credit facility debt Level II 3,393,306 3,435,000 2,631,887 2,675,256 Collateralized indebtedness Level II 1,349,474 1,305,932 1,286,069 1,280,048 Senior guaranteed notes Level II 2,291,185 2,420,000 2,289,494 2,416,375 Senior notes and debentures Level II 6,409,889 7,221,846 6,732,816 7,731,150 Notes payable Level II 56,956 55,289 13,726 13,260 Cablevision senior notes Level II 1,818,115 1,931,239 2,742,082 2,920,056 Cequel debt instruments: Cequel credit facility Level II 1,250,217 1,258,675 812,903 815,000 Senior secured notes Level II 2,570,506 2,658,930 2,566,802 2,689,750 Senior notes Level II 2,770,737 2,983,615 3,176,131 3,517,275 Notes payable Level II 8,946 8,945 — — $ 21,919,331 $ 23,279,471 $ 24,001,910 $ 25,896,046 (a) Amounts are net of unamortized deferred financing costs and discounts/premiums. The fair value estimates related to the Company's debt instruments presented above are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates are subjective in nature and involve uncertainties and matters of significant judgments and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates.

INCOME TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The Company files a federal consolidated and certain state combined income tax returns with its 80% or more owned subsidiaries. Income tax benefit attributable to the Company's operations for the years ended December 31, 2017 and 2016 consist of the following components: Years Ended December 31, 2017 2016 Current expense (benefit): Federal $ 5,657 $ (981 ) State 12,509 5,310 18,166 4,329 Deferred benefit: Federal (2,088,652 ) (223,159 ) State (782,492 ) (40,830 ) (2,871,144 ) (263,989 ) Tax benefit relating to uncertain tax positions 11 (6 ) Income tax benefit $ (2,852,967 ) $ (259,666 ) The income tax benefit attributable to the Company's operations differs from the amount derived by applying the statutory federal rate to pretax loss principally due to the effect of the following items: Years Ended December 31, 2017 2016 Federal tax benefit at statutory rate $ (465,972 ) $ (381,901 ) State income taxes, net of federal impact (59,719 ) (39,336 ) Changes in the valuation allowance (111 ) 297 Impact of Federal Tax Reform (2,337,900 ) — Changes in the state rates used to measure deferred taxes, net of federal impact (12,896 ) 153,239 Tax benefit relating to uncertain tax positions (253 ) (120 ) Non-deductible share-based compensation related to the carried unit plan 20,101 5,029 Non-deductible Cablevision Acquisition transaction costs — 4,457 Other non-deductible expenses 3,349 1,551 Other, net 434 (2,882 ) Income tax benefit $ (2,852,967 ) $ (259,666 ) Pursuant to the enactment of the Tax Cuts & Jobs Act ("Tax Reform") on December 22, 2017, the Company recorded a noncash deferred tax benefit of $2,337,900 to remeasure the net deferred tax liability to adjust for the reduction in the corporate federal income tax rate 35% to 21% which is effective on January 1, 2018. This adjustment results primarily from a decrease in the deferred tax liabilities with regard to fixed assets and intangibles, partially offset by a decrease in the deferred tax asset for the federal net operating loss carry forward (‘‘NOL’’). The noncash deferred tax benefit is provisional. Revised estimates and additional guidance regarding application of Tax Reform may require adjustments during the allowable measurement period. Overall, Tax Reform will have a favorable impact on the Company’s income tax profile. Additional first-year depreciation deductions represent a significant timing benefit. Since Tax Reform only limits the deduction for NOLs arising in years beginning after December 31, 2017, the timing of the Company’s deductions with regard to its existing NOLs is largely unaffected. The Company will be subject to Tax Reform’s limitation on interest deductibility which is based on a limit calculated without regard to depreciation or amortization through 2021. The resulting interest deduction that is deferred, and can be carried forward indefinitely, is expected to fully reverse. However, as is the case with any future deductible temporary difference, management will evaluate realizability to determine whether a valuation allowance is required. Management does not expect that a valuation allowance will be required based on its preliminary estimate of the current facts and circumstances. Repeal of the alternative minimum tax will reduce projected tax payments in the short term while also providing for the refund of alternative minimum tax credits. As described in Note 1, in June, 2016, (i) Cequel was contributed to Altice USA and (ii) Altice USA completed the Cablevision Acquisition. Accordingly, in the second quarter of 2016, Cequel and Cablevision joined the federal consolidated and certain state combined income tax returns of Altice USA. As a result, the applicate tax rate used to measure deferred tax assets and liabilities of Cequel increased, resulting in a noncash deferred income tax charge of $153,660 . The tax effects of temporary differences which give rise to significant portions of deferred tax assets or liabilities and the corresponding valuation allowance are as follows. December 31, 2017 2016 Noncurrent NOLs and tax credit carry forwards $ 784,334 $ 971,728 Compensation and benefit plans 48,280 93,939 Partnership investments 68,054 113,473 Restructuring liability 33,247 37,393 Other liabilities 38,140 45,561 Liabilities under derivative contracts 21,034 31,529 Interest deferred for tax purposes 128,516 39,633 Other 7,182 6,615 Deferred tax asset 1,128,787 1,339,871 Valuation allowance (3,000 ) (3,125 ) Net deferred tax asset, noncurrent 1,125,787 1,336,746 Fixed assets and intangibles (5,733,319 ) (9,065,635 ) Investments (113,628 ) (187,795 ) Prepaid expenses (8,007 ) (10,172 ) Fair value adjustments related to debt and deferred financing costs (40,215 ) (30,535 ) Other (5,733 ) (9,424 ) Deferred tax liability, noncurrent (5,900,902 ) (9,303,561 ) Total net deferred tax liability $ (4,775,115 ) $ (7,966,815 ) On January 1, 2017, the Company adopted ASU No. 2016-09 using the prospective transition method with respect to the presentation of excess tax benefits in the statement of cash flows. In connection with the adoption, a deferred tax asset of $310,771 for previously unrealized excess tax benefits related to share-based payment awards was recognized with the offset recorded to accumulated deficit. As of December 31, 2017, the Company's federal NOLs were approximately $2,670,000 . The utilization of certain pre-merger NOLs of Cablevision and Cequel are limited pursuant to Internal Revenue Code Section 382. The Company does not expect such limitations to impact the ability to utilize the NOLs prior to their expiration. As of December 31, 2017, the Company has $48,995 of alternative minimum tax credits which do not expire and $17,806 of research credits, expiring in varying amounts from 2023 through 2035. Deferred tax assets have resulted primarily from the Company's future deductible temporary differences and NOLs. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax asset will not be realized. In evaluating the need for a valuation allowance, management takes into account various factors, including the expected level of future taxable income, available tax planning strategies and reversals of existing taxable temporary differences. If such estimates and related assumptions change in the future, the Company may be required to record additional valuation allowances against its deferred tax assets, resulting in additional income tax expense in the Company's consolidated statements of operations. Management evaluates the realizability of the deferred tax assets and the need for additional valuation allowances quarterly. Pursuant to the Cablevision Acquisition and Cequel Acquisition, deferred tax liabilities resulting from the book fair value adjustment increased significantly and future taxable income that will result from the reversal of existing taxable temporary differences for which deferred tax liabilities are recognized is sufficient to conclude it is more likely than not that the Company will realize all of its gross deferred tax assets, except those deferred tax assets against which a valuation allowance has been recorded which relate to certain state NOLs. In the normal course of business, the Company engages in transactions in which the income tax consequences may be uncertain. The Company's income tax returns are filed based on interpretation of tax laws and regulations. Such income tax returns are subject to examination by taxing authorities. For financial statement purposes, the Company only recognizes tax positions that it believes are more likely than not of being sustained. There is considerable judgment involved in determining whether positions taken or expected to be taken on the tax return are more likely than not of being sustained. A reconciliation of the beginning and ending amount of unrecognized tax benefits associated with uncertain tax positions, excluding associated deferred tax benefits and accrued interest, is as follows: Balance at January 1, 2016 $ 4,025 Increases related to prior year tax positions 11 Balance at December 31, 2017 $ 4,036 As of December 31, 2017, if all uncertain tax positions were sustained at the amounts reported or expected to be reported in the Company's tax returns, the elimination of the Company's unrecognized tax benefits, net of the deferred tax impact, would decrease income tax expense by $5,585 . In the second quarter of 2016, the Company changed its accounting policy on a prospective basis to present interest expense relating to uncertain tax positions as additional interest expense. For the year ended December 31, 2017, $659 of interest expense relating to uncertain tax position was recorded to interest expense. The most significant jurisdictions in which the Company is required to file income tax returns include the states of New York, New Jersey, Connecticut, the City of New York, Texas and West Virginia. The State of New York is presently auditing income tax returns for years 2009 through 2011. The State of New Jersey is presently auditing income tax returns for years 2013 through 2015. Management does not believe that the resolution of the ongoing income tax examination described above will have a material adverse impact on the financial position of the Company. Changes in the liabilities for uncertain tax positions will be recognized in the interim period in which the positions are effectively settled or there is a change in factual circumstances.

SHARE BASED COMPENSATION

SHARE BASED COMPENSATION	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
SHARE BASED COMPENSATION	SHARE BASED COMPENSATION Carry Unit Plan Certain employees of the Company and its affiliates received awards of units in a carry unit plan of Neptune Management LP, an entity which has an ownership interest in the Company. The awards generally vest as follows: 50% on the second anniversary of June 21, 2016 for Cablevision employees or December 21, 2015 for Cequel employees ("Base Date"), 25% on the third anniversary of the Base Date, and 25% on the fourth anniversary of the Base Date. Neptune Holding US GP LLC, the general partner of Neptune Management LP, has the right to repurchase (or to assign to an affiliate, including the Company, the right to repurchase) vested awards held by employees for sixty days following their termination. For performance-based awards under the plan, vesting occurs upon achievement or satisfaction of a specified performance condition. The Company considered the probability of achieving the established performance targets in determining the share-based compensation with respect to these awards at the end of each reporting period. The carry unit plan has 259,442,785 units authorized for issuance, of which 211,670,834 have been issued to employees of the Company and 11,300,000 have been issued to employees of Altice N.V. and affiliated companies as of December 31, 2017 . Beginning on the fourth anniversary of the Base Date, the holders of carry units have an annual opportunity (a sixty day period determined by the administrator of the plan) to sell their units back to Neptune Holding US GP LLC (or affiliate, including the Company, designated by Neptune Holding US GP LLC). Accordingly, the carry units are presented as temporary equity on the consolidated balance sheets at fair value. Adjustments to fair value at each reporting period are recorded in paid-in capital. The right of Neptune Holding US GP LLC to assign to an affiliate, including the Company, the right to repurchase an employee’s vested units during the sixty-day period following termination, or to satisfy its obligation to repurchase an employee’s vested units during annual 60 day periods following the fourth anniversary of the Base Date, may be exercised by Neptune Holding US GP LLC in its discretion at the time a repurchase right or obligation arises. The carry unit plan requires the purchase price payable to the employee or former employee, as the case may be, to be paid in cash, a promissory note (with a term of not more than 3 years and bearing interest at the long-term applicable federal rate under Section 1274(d) of the Internal Revenue Code) or combination thereof, in each case as determined by Neptune Holding US GP LLC in its discretion at the time of the repurchase. Neptune Holding US GP LLC expects that vested units will be redeemed for shares of the Company's Class A common stock upon vesting. The Company measures the cost of employee services received in exchange for carry units based on the fair value of the award at grant date. In addition these units are presented as temporary equity on our consolidated balance sheet at fair value. For carry unit awards granted in 2016, an option pricing model was used which requires subjective assumptions for which changes in these assumptions could materially affect the fair value of the carry units outstanding. The time to liquidity event assumption was based on management’s judgment. The equity volatility assumption was estimated using the historical weekly volatility of publicly traded comparable companies. The risk-free rate assumed was based on the U.S. Constant Maturity Treasury Rates for a period matching the expected time to liquidity event. The discount for lack of marketability was based on Finnerty's (2012) average-strike put option model. For carry unit awards granted in the first and second quarter of 2017, the Company estimated the grant date fair value based on the value established in the Company's IPO. The following table summarizes activity relating to carry units: Number of Time Vesting Awards Number of Performance Based Vesting Awards Weighted Average Grant Date Fair Value Balance, December 31, 2016 192,800,000 10,000,000 $ 0.37 Granted 28,025,000 — 3.14 Forfeited (7,854,166 ) — 0.37 Vested (44,420,833 ) — 0.41 Balance, December 31, 2017 168,550,001 10,000,000 0.71 The weighted average fair value per unit was $1.76 and $2.50 as of December 31, 2016 and December 31, 2017, respectively. For the years ended December 31, 2017 and 2016, the Company recognized an expense of $57,430 and $14,368 , respectively, related to the push down of share-based compensation related to the carry unit plan of which approximately $55,258 and $9,849 related to units granted to employees of the Company and $2,172 and $4,519 related to employees of Altice N.V. and affiliated companies allocated to the Company. Stock Option Plan In connection with the Company's IPO, the Company adopted the Altice USA 2017 Long Term Incentive Plan (the "2017 LTIP"). Under the 2017 LTIP, the Company may grant awards of options, restricted shares, restricted share units, stock appreciation rights, performance stock, performance stock units and other awards. Under the 2017 LTIP, awards may be granted to officers, employees and consultants of the Company or any of its affiliates. The 2017 LTIP will be administered by the Company's Board of Directors (the "Board"), subject to the provision of the stockholders' agreement. The Board has delegated its authority to the Company's Compensation Committee. The Compensation Committee has the full power and authority to, among other things, select eligible participants, to grant awards in accordance with the 2017 LTIP, to determine the number of shares subject to each award or the cash amount payable in connection with an award and determine the terms and conditions of each award. The maximum aggregate number of shares that may be issued under the 2017 LTIP is 9,879,291 . The Board has the authority to amend, suspend, or terminate the 2017 LTIP. No amendment, suspension or termination will be effective without the approval of the Company's stockholders if such approval is required under applicable laws, rules and regulations. On December 30, 2017, the Company granted 5,110,747 nonqualified stock options under the 2017 LTIP. The stock options were granted with an exercise price of $19.48 , equal to the 30 day volume weighted average of the closing price of Class A common stock as of the grant date. Certain nonqualified stock options ( 2,730,949 awards) will vest 100% on December 21, 2020 and 2,379,798 awards will vest 50% on the second anniversary, 25% on the third anniversary and 25% on the fourth anniversary of the date of grant, generally subject to continued employment with the Company or any of its affiliates, and expire ten years from the date of grant. The Company calculated the fair value of each option award on the date of grant using the Black-Scholes valuation model. The Company's computation of expected life was determined based on the simplified method (the average of the vesting period and option term) due to the Company's lack of recent historical data for similar awards. The interest rate for periods within the contractual life of the stock option was based on interest yields for U.S. Treasury instruments in effect at the time of grant. The Company's computation of expected volatility was based on historical volatility of its common stock and the expected volatility of comparable publicly-traded companies who granted options that had similar expected lives. The following aggregate assumptions were used to calculate the fair values of stock option awards granted on December 30, 2017: Risk-free interest rate 2.30% Expected life (in years) 6.44 Dividend yield —% Volatility 33.95% Grant date fair value $8.77

AFFILIATE AND RELATED PARTY TRA

AFFILIATE AND RELATED PARTY TRANSACTIONS	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
AFFILIATE AND RELATED PARTY TRANSACTIONS	AFFILIATE AND RELATED PARTY TRANSACTIONS Equity Method Investments In July 2016, the Company completed the sale of a 75% interest in Newsday LLC ("Newsday") to an employee of the Company. The Company retained the remaining 25% ownership interest. Effective July 7, 2016, the operating results of Newsday are no longer consolidated with those of the Company and the Company's 25% interest in the operating results of Newsday is recorded on the equity method. At December 31, 2017 and 2016, the Company's 25% investment in Newsday and its 25% interest in i24NEWS, Altice N.V.'s 24/7 international news and current affairs channel aggregated $(2,649) and $5,606 , respectively, and is included in investments in affiliates on our consolidated balance sheets. The operating results of Newsday and i24NEWS are recorded on the equity basis. For the years ended December 31, 2017 and 2016, the Company recorded equity in net loss of Newsday of $7,219 and $1,132 , respectively, and equity in net loss of i24NEWS of $2,821 and $0 , respectively. Affiliate and Related Party Transactions As the transactions discussed below were conducted between subsidiaries of Altice N.V. under common control and equity method investees, amounts charged for certain services may not have represented amounts that might have been received or incurred if the transactions were based upon arm's length negotiations. Altice Technical Services US Corp. ("ATS") As discussed in Note 1, in January 2018, the Company completed the ATS Acquisition and the Company expects to become the owner of 100% of the equity interests in ATS prior to the Distribution. ATS was previously owned by Altice N.V. and a member of ATS's management through a holding company. As a result of the ATS Acquisition, the Company will combine the operations of ATS with Altice USA in 2018. See Note 1 for a summary of the impact that the ATS Acquisition will have on the Company's previously reported revenue, operating expenses and operating income. ATS was formed to provide network construction and maintenance services and commercial and residential installations, disconnections, and maintenance. In the second quarter of 2017, the Company entered into an Independent Contractor Agreement with ATS that governs the terms of the services described above. The Company believes the services it receives from ATS will be of higher quality and at a lower cost than the Company could achieve without ATS, including for the construction of our new fiber-to-the home ("FTTH") network. The Company also entered into a Transition Services Agreement for the use of the Company's resources to provide various overhead functions to ATS, including accounting, legal and human resources and for the use of certain facilities, vehicles and technician tools during a transitional period that generally ended on December 31, 2017, although the term can be extended on a service-by-service basis. The Transition Services Agreement requires ATS to reimburse the Company for its cost to provide such services. During the second quarter of 2017, a substantial portion of the Company's technical workforce at the Cablevision segment either accepted employment with ATS or became employees of ATS and ATS commenced operations and began to perform services for the Company. A substantial portion of the Cequel segment technical workforce became employees of ATS in December 2017. For the year ended December 31, 2017, the Company's operating results reflect a reduction in employee related expenses due to certain employees becoming employed by ATS and an increase in contractor costs for services provided by ATS. From the formation of ATS and up until an equity contribution was made by its parent in June 2017, ATS met the definition of a variable interest entity in accordance with ASC 810-10-15-14. The Company evaluated whether its arrangement under the terms of the Independent Contractor Agreement is a variable interest, whether the Company is the primary beneficiary and whether the Company should consolidate ATS. The Company concluded that it is not the primary beneficiary of ATS because ATS is controlled by its parent, which in turn is controlled by Altice N.V. who has the power to direct the most significant activities of ATS. As of December 31, 2017 , the Company had a prepayment balance of $19,563 to ATS which is reflected in prepaid expenses and other current assets and $6,539 which is reflected in other long-term assets on the Company's balance sheet. The Company reduced goodwill to reflect the preliminary estimate of the historical value of the goodwill associated with the transfer to ATS described above of $23,101 , that has been recorded as a reduction to stockholders' equity. The following table summarizes the revenue and charges related to services provided to or received from subsidiaries of Altice N.V. and Newsday: Years Ended December 31, 2017 2016 Revenue $ 2,205 $ 1,086 Operating expenses: Programming and other direct costs $ (4,176 ) $ (1,947 ) Other operating expenses, net (106,084 ) (18,854 ) Operating expenses, net (110,260 ) (20,801 ) Interest expense (see Note 9)(a) (90,405 ) (112,712 ) Loss on extinguishment of debt and write-off of deferred financing costs (see Note 9) (513,723 ) — Net charges $ (712,183 ) $ (132,427 ) Capital Expenditures $ 133,918 $ 45,886 (a) The 2016 amount includes $10,155 related to Holdco Notes prior to the exchange in addition to the interest related to notes payable to affiliates and related parties discussed in Note 9. Revenue The Company recognized revenue in connection with the sale of pay television, broadband and telephony services to ATS and the sale of advertising to Newsday. Programming and other direct costs Programming and other direct costs include costs incurred by the Company for the transport and termination of voice and data services provided by a subsidiary of Altice N.V. Other operating expenses Other operating expenses include charges of $72,944 from ATS for the year ended December 31, 2017, pursuant to the Independent Contractor Agreement, net of charges to ATS pursuant to the TSA, discussed above. Altice N.V. provides certain executive services, as well as consulting, advisory and other services, including, prior to the IPO, CEO, CFO and COO services, to the Company. Compensation under the terms of the agreement is an annual fee of $30,000 to be paid by the Company. Fees associated with this agreement recorded by the Company amounted to approximately $30,000 and $20,556 , for the years ended December 31, 2017 and 2016, respectively. As of June 20, 2017, the CEO, CFO and COO became employees of the Company and the agreement was assigned to Altice N.V. by a subsidiary of Altice N.V. This agreement will be terminated upon the completion of the Distribution discussed in Note 1. Other operating expenses also include charges for services provided by other subsidiaries of Altice N.V. aggregating $4,057 and $887 , respectively, net of a credit of $917 and $2,589 related to transition services provided to Newsday for the year ended December 31, 2017 and 2016, respectively. Capital Expenditures Capital expenditures for the year ended December 31, 2017 include $111,906 (including advance payments related to the FTTH project of $16,363 ) for installation and construction activities performed by ATS, $17,434 of equipment purchased from Altice Labs S.A., $4,578 of software development services, that were capitalized, from Altice Management International and other Altice N.V. subsidiaries. Capital expenditures for the year ended December 31, 2016 include $44,121 of equipment purchased from Altice Management International and $1,025 from another Altice N.V. subsidiary. In addition, the Company acquired certain software development services that were capitalized from Altice Labs S.A. aggregating $740 . Aggregate amounts that were due from and due to related parties are summarized below: December 31, 2017 2016 Due from: Altice US Finance S.A. (a) $ 12,951 $ 12,951 Newsday (b) 2,713 6,114 Altice Management Americas (b) 33 3,117 i24NEWS (b) 4,036 — Other Altice N.V. subsidiaries (b) 1,623 — $ 21,356 $ 22,182 Due to: CVC 3BV (c) $ — $ 71,655 Neptune Holdings US LP (c) — 7,962 Altice Management International (d) — 44,121 ATS (b)(e) 2,948 — Newsday (b) 33 275 Altice Labs S.A. (d) 7,354 866 Other Altice N.V. subsidiaries (f) 3,611 2,484 $ 13,946 $ 127,363 (a) Represents interest on senior notes paid by the Company on behalf of the affiliate. (b) Represents amounts paid by the Company on behalf of the respective related party and for Newsday and ATS, the net amounts due from the related party also include charges for certain transition services provided. (c) Represents distributions payable to stockholders. (d) Amounts payable as of December 31, 2016 primarily represent amounts due for equipment purchases and/or software development services discussed above. (e) Represents amounts due to ATS for construction, maintenance, and installation services, net of charges to ATS pursuant to the TSA. See discussion above. (f) Represents amounts due to affiliates for services provided to the Company. The table above does not include notes payable to affiliates and related parties of $1,750,000 and the related accrued interest of $102,557 as of December 31, 2016 , respectively, which is reflected in accrued interest in the Company's balance sheet. See discussion in Note 9. In the second quarter of 2017, prior to the Company's IPO, the Company declared and paid cash distributions aggregating $839,700 to stockholders, $500,000 of which were funded with proceeds from borrowings under CSC Holdings' revolving credit facility. In 2016, the Company declared cash distributions of $445,176 , of which $365,559 were paid in 2016 and $79,617 were paid in the first quarter of 2017.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Commitments Future cash payments and commitments required under arrangements pursuant to contracts entered into by the Company in the normal course of business as of December 31, 2017 are as follows: Payments Due by Period Total Year 1 Years 2-3 Years 4-5 More than 5 years Off balance sheet arrangements: Purchase obligations (a) $ 8,423,735 $ 3,071,514 $ 4,179,616 $ 1,092,786 $ 79,819 Guarantees (b) 36,224 34,716 1,508 — — Letters of credit (c) 129,473 200 120 129,153 — Total $ 8,589,432 $ 3,106,430 $ 4,181,244 $ 1,221,939 $ 79,819 (a) Purchase obligations primarily include contractual commitments with various programming vendors to provide video services to customers and minimum purchase obligations to purchase goods or services. Future fees payable under contracts with programming vendors are based on numerous factors, including the number of customers receiving the programming. Amounts reflected above related to programming agreements are based on the number of customers receiving the programming as of December 31, 2017 multiplied by the per customer rates or the stated annual fee, as applicable, contained in the executed agreements in effect as of December 31, 2017 . (b) Includes franchise and performance surety bonds primarily for the Company's cable television systems. (c) Represent letters of credit guaranteeing performance to municipalities and public utilities and payment of insurance premiums. Payments due by period for these arrangements represent the year in which the commitment expires although payments under these arrangements are required only in the event of nonperformance. The table above does not include obligations for payments required to be made under multi-year franchise agreements based on a percentage of revenues generated from video service per year. Many of the Company's franchise agreements and utility pole leases require the Company to remove its cable wires and other equipment upon termination of the respective agreements. The Company has concluded that the fair value of these asset retirement obligations cannot be reasonably estimated since the range of potential settlement dates is not determinable. Legal Matters Following expiration of the affiliation agreements for carriage of certain Fox broadcast stations and cable networks on October 16, 2010, News Corporation terminated delivery of the programming feeds to Cablevision, and as a result, those stations and networks were unavailable on Cablevision's cable television systems. On October 30, 2010, Cablevision and Fox reached an agreement on new affiliation agreements for these stations and networks, and carriage was restored. Several purported class action lawsuits alleging breach of contract, unjust enrichment, and consumer fraud and seeking unspecified compensatory damages, punitive damages and attorneys' fees were subsequently filed on behalf of Cablevision's customers seeking recovery for the lack of Fox programming. Those lawsuits were consolidated in an action before the U. S. District Court for the Eastern District of New York, and a consolidated complaint was filed in that court on February 22, 2011. On March 28, 2012, in ruling on Cablevision's motion to dismiss, the Court dismissed all of plaintiffs’ claims, except for breach of contract. On March 30, 2014, the Court granted plaintiffs’ motion for class certification. The parties have entered into a settlement agreement. The Court granted preliminary approval of the settlement agreement on January 8, 2018, and set a hearing for final approval on May 17, 2018. As of December 31, 2016, the Company had an estimated liability associated with a potential settlement totaling $5,200 . During the year ended December 31, 2017 , the Company recorded an additional liability of $800 . The amount ultimately paid in connection with the proposed settlement could exceed the amount recorded. In October 2015, the New York Attorney General began an investigation into whether the major Internet Service Providers in New York State deliver advertised Internet speeds. The Company is cooperating with this investigation and is currently in discussions with the New York Attorney General about resolving the investigation as to the Company, which resolution may involve operational and/or financial components. While the Company is unable to predict the outcome of the investigation or these discussions, at this time it does not expect that the outcome will have a material adverse effect on its operations, financial conditions or cash flows. The Company receives notices from third parties and, in some cases, is named as a defendant in certain lawsuits claiming infringement of various patents relating to various aspects of the Company's businesses. In certain of these cases other industry participants are also defendants. In certain of these cases the Company expects that any potential liability would be the responsibility of the Company's equipment vendors pursuant to applicable contractual indemnification provisions. The Company believes that the claims are without merit and intends to defend the actions vigorously, but is unable to predict the outcome of these matters or reasonably estimate a range of possible loss. In addition to the matters discussed above, the Company is party to various lawsuits, some involving claims for substantial damages. Although the outcome of these other matters cannot be predicted and the impact of the final resolution of these other matters on the Company's results of operations in a particular subsequent reporting period is not known, management does not believe that the resolution of these other lawsuits will have a material adverse effect on the financial position of the Company or the ability of the Company to meet its financial obligations as they become due.

SEGMENT INFORMATION

SEGMENT INFORMATION	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION The Company classifies its operations into two reportable segments: Cablevision and Cequel. The Company's reportable segments are strategic business units that are managed separately. The Company evaluates segment performance based on several factors, of which the primary financial measure is business segment Adjusted EBITDA, a non-GAAP measure. The Company defines Adjusted EBITDA as net income (loss) excluding income taxes, income (loss) from discontinued operations, non-operating other income or expenses, loss on extinguishment of debt and write-off of deferred financing costs, gain (loss) on interest rate swap contracts, gain (loss) on derivative contracts, gain (loss) on investments, interest expense (including cash interest expense), interest income, depreciation and amortization (including impairments), share-based compensation expense or benefit, restructuring expense or credits and transaction expenses. The Company has presented the components that reconcile Adjusted EBITDA to operating income, an accepted GAAP measure: Year Ended December 31, 2017 Year Ended December 31, 2016 Cablevision Cequel Total Cablevision (a) Cequel Total Operating income $ 345,063 $ 520,321 $ 865,384 $ 74,865 $ 384,801 $ 459,666 Share-based compensation 42,060 15,370 57,430 9,164 5,204 14,368 Restructuring and other expense 112,384 40,017 152,401 212,150 28,245 240,395 Depreciation and amortization (including impairments) 2,251,614 678,861 2,930,475 963,665 736,641 1,700,306 Adjusted EBITDA $ 2,751,121 $ 1,254,569 $ 4,005,690 $ 1,259,844 $ 1,154,891 $ 2,414,735 (a) Reflects operating results of Cablevision from the date of acquisition. A reconciliation of reportable segment amounts to the Company's consolidated balances are as follows: Year Ended December 31, 2017 2016 Operating income for reportable segments $ 865,384 $ 459,666 Items excluded from operating income: Interest expense (1,603,132 ) (1,456,541 ) Interest income 1,921 13,811 Gain on investments, net 237,354 141,896 Loss on derivative contracts, net (236,330 ) (53,696 ) Gain (loss) on interest rate swap contracts 5,482 (72,961 ) Loss on extinguishment of debt and write-off of deferred financing costs (600,240 ) (127,649 ) Other income (expense), net (1,788 ) 4,329 Loss before income taxes $ (1,331,349 ) $ (1,091,145 ) The following table presents the composition of revenue by segment: Year Ended December 31, 2017 Year Ended December 31, 2016 Cablevision (a) Cequel Eliminations Total Cablevision (a) Cequel Total Residential: Pay TV $ 3,113,238 $ 1,101,507 $ — $ 4,214,745 $ 1,638,691 $ 1,120,525 $ 2,759,216 Broadband 1,603,015 960,757 — 2,563,772 782,615 834,414 1,617,029 Telephony 693,478 130,503 — 823,981 376,034 153,939 529,973 Business services and wholesale 923,161 375,656 — 1,298,817 468,632 350,909 819,541 Advertising 321,149 73,509 (2,792 ) 391,866 163,678 88,371 252,049 Other 10,747 22,642 — 33,389 14,402 25,002 39,404 Total Revenue $ 6,664,788 $ 2,664,574 $ (2,792 ) $ 9,326,570 $ 3,444,052 $ 2,573,160 $ 6,017,212 (a) Reflects revenue from the Cablevision Acquisition Date. Capital expenditures (cash basis) by reportable segment are presented below: Years Ended December 31, 2017 2016 Cablevision $ 711,432 $ 298,357 Cequel 279,932 327,184 $ 991,364 $ 625,541 All revenues and assets of the Company's reportable segments are attributed to or located in the United States. Total assets by segment are not provided as such amounts are not regularly reviewed by the chief operating decision maker for purposes of decision making regarding resource allocations.

BENEFIT PLANS

BENEFIT PLANS	12 Months Ended
	Dec. 31, 2017
Retirement Benefits [Abstract]
Benefit Plans	BENEFIT PLANS Qualified and Non-qualified Defined Benefit Plans Retirement Plans (collectively, the "Defined Benefit Plans") The Company sponsors a non-contributory qualified defined benefit cash balance retirement plan (the "Pension Plan") for the benefit of non-union employees of Cablevision, as well as certain employees covered by a collective bargaining agreement in Brooklyn. The Company maintains an unfunded non-contributory non-qualified defined benefit excess cash balance plan ("Excess Cash Balance Plan") covering certain current and former employees of Cablevision who participate in the Pension Plan. The Company also maintained an additional unfunded non-contributory, non-qualified defined benefit plan ("CSC Supplemental Benefit Plan") for the benefit of certain former officers and employees of Cablevision which provided that, upon retiring on or after normal retirement age, a participant receives a benefit equal to a specified percentage of the participant's average compensation, as defined. All participants were 100% vested in the CSC Supplemental Benefit Plan. The benefits related to the CSC Supplemental Plan were paid to participants in January 2017 and the plan was terminated. Cablevision's Pension Plan and the Excess Cash Balance Plan are frozen and no employee of Cablevision who was not already a participant could participate in the plans and no further annual Pay Credits (a certain percentage of employees' eligible pay) are made. Existing account balances under the plans continue to be credited with monthly interest in accordance with the terms of the plans. Plan Results for Defined Benefit Plans Summarized below is the funded status and the amounts recorded on the Company's consolidated balance sheets for all of the Company's Defined Benefit Plans at December 31, 2017 and 2016: December 31, 2017 2016 Change in projected benefit obligation: Projected benefit obligation at beginning of year $ 382,517 $ 403,963 Interest cost 11,786 14,077 Actuarial loss (gain) 13,171 (11,429 ) Curtailments 6,332 3,968 Settlements 6,910 — Benefits paid (121,650 ) (28,062 ) Projected benefit obligation at end of year 299,066 382,517 Change in plan assets: Fair value of plan assets at beginning of year 284,118 297,846 Actual return on plan assets, net 6,356 5,829 Employer contributions 26,944 8,505 Benefits paid (121,650 ) (28,062 ) Fair value of plan assets at end of year 195,768 284,118 Unfunded status at end of year $ (103,298 ) $ (98,399 ) The accumulated benefit obligation for the Company's Defined Benefit Plans aggregated $299,066 and $382,517 at December 31, 2017 and 2016. The Company's net funded status relating to its Defined Benefit Plans at December 31, 2017 and 2016, is as follows: December 31, 2017 2016 Defined Benefit Plans $ (103,298 ) $ (98,399 ) Less: Current portion related to nonqualified plans 135 14,293 Long-term defined benefit plan obligations $ (103,163 ) $ (84,106 ) Components of the net periodic benefit cost, recorded in other operating expenses, for the Defined Benefit Plans for the years ended December 31, 2017 and 2016, is as follows: Years Ended December 31, 2017 2016 Interest cost $ 11,786 $ 6,946 Expected return on plan assets, net (4,907 ) (4,022 ) Curtailment loss 3,137 231 Settlement loss (income) (reclassified from accumulated other comprehensive loss) (a) 1,845 (154 ) Net periodic benefit cost $ 11,861 $ 3,001 (a) As a result of benefit payments to terminated or retired individuals exceeding the service and interest costs for the Pension Plan and the Excess Cash Balance Pension Plan during the year ended December 31, 2017 and during the period June 21, 2016 through December 31, 2016, the Company recognized a non-cash settlement loss that represented the acceleration of the recognition of a portion of the previously unrecognized actuarial losses recorded in accumulated other comprehensive loss on the Company’s consolidated balance sheet relating to these plans. Plan Assumptions for Defined Benefit Plans Weighted-average assumptions used to determine net periodic cost (made at the beginning of the year) and benefit obligations (made at the end of the year) for the Defined Benefit Plans are as follows: Net Periodic Benefit Cost Benefit Obligations at December 31, For the Year Ended December 31, 2017 For the Period June 21, 2016 to December 31, 2016 2017 2016 Discount rate (a) 3.69 % 3.53 % 3.50 % 3.81 % Rate of increase in future compensation levels — % — % — % — % Expected rate of return on plan assets (Pension Plan only) 3.90 % 3.97 % N/A N/A (a) The discount rate of 3.53% for the period June 21, 2016 through December 31, 2016, represents the average of the quarterly discount rates used to remeasure the Company's projected benefit obligation and net periodic benefit cost in connection with the recognition of settlement losses discussed above. The discount rate used by the Company in calculating the net periodic benefit cost for the Cash Balance Plan and the Excess Cash Balance Plan was determined based on the expected future benefit payments for the plans and from the Towers Watson U.S. Rate Link: 40-90 Discount Rate Model. The model was developed by examining the yields on selected highly rated corporate bonds. The Company's expected long-term return on Pension Plan assets is based on a periodic review and modeling of the plan's asset allocation structure over a long-term horizon. Expectations of returns and risk for each asset class are the most important of the assumptions used in the review and modeling and are based on comprehensive reviews of historical data, forward looking economic outlook, and economic/financial market theory. The expected long-term rate of return was chosen as a best estimate and was determined by (a) historical real returns, net of inflation, for the asset classes covered by the investment policy, and (b) projections of inflation over the long-term period during which benefits are payable to plan participants. Pension Plan Assets and Investment Policy The weighted average asset allocations of the Pension Plan at December 31, 2017 and 2016 were as follows: Plan Assets at December 31, 2017 2016 Asset Class: Mutual funds 32 % 43 % Fixed income securities 66 55 Cash equivalents and other 2 2 100 % 100 % The Pension Plan's investment objectives reflect an overall low risk tolerance to stock market volatility. This strategy allows for the Pension Plan to invest in portfolios that would obtain a rate of return throughout economic cycles, commensurate with the investment risk and cash flow needs of the Pension Plan. The investments held in the Pension Plan are readily marketable and can be sold to fund benefit payment obligations of the plan as they become payable. Investment allocation decisions are formally made by the Company's Benefit Committee, which takes into account investment advice provided by its external investment consultant. The investment consultant takes into account expected long-term risk, return, correlation, and other prudent investment assumptions when recommending asset classes and investment managers to the Company's Benefit Committee. The major categories of the Pension Plan assets are cash equivalents and bonds which are marked-to-market on a daily basis. Due to the Pension Plan's significant holdings in long-term government and non-government fixed income securities, the Pension Plan's assets are subjected to interest rate risk; specifically, a rising interest rate environment. Consequently, an increase in interest rates may cause a decrease to the overall liability of the Pension Plan thus creating a hedge against rising interest rates. In addition, a portion of the Pension Plan's bond portfolio is invested in foreign debt securities where there could be foreign currency risks associated with them, as well as in non-government securities which are subject to credit risk of the bond issuer defaulting on interest and/or principal payments. Investments at Estimated Fair Value The fair values of the assets of the Pension Plan at December 31, 2017 by asset class are as follows: Asset Class Level I Level II Level III Total Mutual funds $ 61,833 $ — $ — $ 61,833 Fixed income securities held in a portfolio: Foreign issued corporate debt — 10,721 — 10,721 U.S. corporate debt — 39,992 — 39,992 Government debt — 4,645 — 4,645 U.S. Treasury securities — 62,601 — 62,601 Asset-backed securities — 10,978 — 10,978 Other — — — — Cash equivalents (a) 6,691 2,782 — 9,473 Total (b) $ 68,524 $ 131,719 $ — $ 200,243 (a) A significant portion represents an investment in a short-term investment fund that invests primarily in securities of high quality and low risk. (b) Excludes cash and net payables relating to the purchase of securities that were not settled as of December 31, 2017. The fair values of the assets of the Pension Plan at December 31, 2016 by asset class are as follows: Asset Class Level I Level II Level III Total Mutual funds $ 121,356 $ — $ — $ 121,356 Fixed income securities held in a portfolio: Foreign issued corporate debt — 13,583 — 13,583 U.S. corporate debt — 48,046 — 48,046 Government debt — 4,810 — 4,810 U.S. Treasury securities — 77,285 — 77,285 Asset-backed securities — 14,065 — 14,065 Other — 247 — 247 Cash equivalents (a) 2,593 3,089 — 5,682 Total (b) $ 123,949 $ 161,125 $ — $ 285,074 (a) A significant portion represents an investment in a short-term investment fund that invests primarily in securities of high quality and low risk. (b) Excludes cash and net payables relating to the purchase of securities that were not settled as of December 31, 2016. The fair values of mutual funds and cash equivalents were derived from quoted market prices that the Pension Plan administrator has the ability to access. The fair values of corporate and government debt, treasury securities and asset-back securities were derived from bids received from a vendor or broker not available in an active market that the Pension Plan administrator has the ability to access. Benefit Payments and Contributions for Defined Benefit Plans The following benefit payments are expected to be paid during the periods indicated: 2018 $ 96,482 2019 18,960 2020 14,052 2021 13,282 2022 13,792 2023-2027 69,369 The Company currently expects to contribute approximately $18,000 to the Pension Plan in 2018. Defined Contribution Plans The Company maintains the Cablevision 401(k) Savings Plan, a contributory qualified defined contribution plan for the benefit of non-union employees of Cablevision. Participants can contribute a percentage of eligible annual compensation and the Company will make a matching cash contribution or discretionary contribution, as defined in the plan. In addition, the Company maintains an unfunded non-qualified excess savings plan which was frozen on January 1, 2017 for which the Company provided a matching contribution similar to the Cablevision 401(k) Savings Plan. Applicable employees of the Company were eligible for an enhanced employer matching contribution, as well as a year-end employer discretionary contribution to the Cablevision 401(k) Savings Plan and the Cablevision Excess Savings Plan. Through September 30, 2017, the Company also maintained a 401(k) plan for employees of Cequel. Cequel employees that qualified for participation were able to contribute a percentage of eligible annual compensation and the Company would make a matching cash contribution, as defined in the plan. During the fourth quarter of 2017, the Suddenlink 401(k) plan assets were transferred to the Cablevision 401(k) Savings Plan and the plan was renamed the Altice USA 401(k) Savings Plan. The cost associated with these plans (including the enhanced employer matching and discretionary contributions on 2016) was $27,577 and $28,501 for the years ended December 31, 2017 and 2016, respectively.

ALLOWANCE FOR DOUBTFUL ACCOUNTS

ALLOWANCE FOR DOUBTFUL ACCOUNTS	12 Months Ended
	Dec. 31, 2017
Receivables [Abstract]
ALLOWANCE FOR DOUBTFUL ACCOUNTS	ALLOWANCE FOR DOUBTFUL ACCOUNTS Activity related to the Company's allowance for doubtful accounts is presented below: Balance at Beginning of Period Provision for Bad Debt Deductions/ Write-Offs and Other Charges Balance at End of Period Year Ended December 31, 2017 Allowance for doubtful accounts $ 11,677 $ 74,183 $ (72,440 ) $ 13,420 Year Ended December 31, 2016 Allowance for doubtful accounts $ 1,051 $ 53,249 $ (42,623 ) $ 11,677

INTERIM FINANCIAL INFORMATION

INTERIM FINANCIAL INFORMATION	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
INTERIM FINANCIAL INFORMATION	INTERIM FINANCIAL INFORMATION (Unaudited) The following is a summary of the Company's selected quarterly financial data for the years ended December 31, 2017 and 2016: March 31, 2017 June 30, 2017 September 30, 2017 December 31, 2017 (a) Total 2017 Revenues, net $ 2,305,676 $ 2,328,341 $ 2,327,175 $ 2,365,378 $ 9,326,570 Operating expenses (2,057,442 ) (2,071,559 ) (2,192,311 ) (2,139,874 ) (8,461,186 ) Operating income $ 248,234 $ 256,782 $ 134,864 $ 225,504 $ 865,384 Net income (loss) $ (76,188 ) $ (474,790 ) $ (182,086 ) $ 2,254,682 $ 1,521,618 Net income attributable to noncontrolling interests (237 ) (365 ) (135 ) (850 ) (1,587 ) Net income (loss) attributable to Altice USA Inc.'s stockholders $ (76,425 ) $ (475,155 ) $ (182,221 ) $ 2,253,832 $ 1,520,031 Basic and diluted net income (loss) per share attributable to Altice USA Inc.'s stockholders $ (0.12 ) $ (0.72 ) $ (0.25 ) $ 3.06 $ 2.18 (a) Pursuant to the enactment of the Tax Reform on December 22, 2017, the Company recorded a noncash deferred tax benefit of $2,337,900 to remeasure the net deferred tax liability to adjust for the reduction in the corporate federal income tax rate 35% to 21% which is effective on January 1, 2018. March 31, 2016 June 30, 2016 September 30, 2016 December 31, 2016 Total 2016 Revenues, net $ 627,589 $ 823,501 $ 2,260,221 $ 2,305,901 $ 6,017,212 Operating expenses (573,329 ) (778,098 ) (2,117,442 ) (2,088,677 ) (5,557,546 ) Operating income $ 54,260 $ 45,403 $ 142,779 $ 217,224 $ 459,666 Net loss $ (140,748 ) $ (282,129 ) $ (172,553 ) $ (236,049 ) $ (831,479 ) Net loss (income) attributable to noncontrolling interests — 364 (256 ) (659 ) (551 ) Net loss attributable to Altice USA, Inc. stockholders $ (140,748 ) $ (281,765 ) $ (172,809 ) $ (236,708 ) $ (832,030 ) Basic and diluted net loss per share attributable to Altice USA Inc.'s stockholders $ (0.22 ) $ (0.43 ) $ (0.27 ) $ (0.36 ) $ (1.28 ) The Company’s previously reported statements of cash flows for the three months ended March 31, 2017, the six months ended June 30, 2017 and the nine months ended September 30, 2017 reflected distributions to stockholders of $79,617 in cash provided by operating activities. These distributions should have been reflected in financing activities.

SUBSEQUENT EVENT

SUBSEQUENT EVENT	12 Months Ended
	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Event	SUBSEQUENT EVENT In January 2018, CSC Holdings borrowed $150,000 under its revolving credit facility and entered into a new $1,500,000 incremental term loan facility (the "Incremental Term Loan") under its existing CVC Credit Facilities Agreement. The Incremental Term Loan was priced at 99.5% and will mature on January 25, 2026. The Incremental Term Loan is comprised of eurodollar borrowings or alternate base rate borrowings, and bears interest at a rate per annum equal to the adjusted LIBO rate or the alternate base rate, as applicable, plus the applicable margin, where the applicable margin is (i) with respect to any alternate base rate loan, 1.50% per annum and (ii) with respect to any eurodollar loan, 2.50% per annum. In January 2018, CSC Holdings issued $1,000,000 aggregate principal amount of 5.375% senior guaranteed notes due February 1, 2028 (the "2028 Guaranteed Notes"). The 2028 Guaranteed Notes are senior unsecured obligations and rank pari passu in right of payment with all of the existing and future senior indebtedness, including the existing senior notes and the CVC Credit Facilities and rank senior in right of payment to all of existing and future subordinated indebtedness. The proceeds from the 2028 Guaranteed Notes, together with proceeds from the Incremental Term Loan, borrowings under the CVC revolving credit facility and cash on hand, were used in February 2018 to repay certain senior notes ( $300,000 principal amount of CSC Holdings' senior notes due in February 2018 and $750,000 principal amount of Cablevision senior notes due in April 2018) and will be used to fund a dividend of $1,500,000 to the Company's stockholders immediately prior to and in connection with the Distribution discussed in Note 1.

CVC - DESCRIPTION OF BUSINESS,

CVC - DESCRIPTION OF BUSINESS, RELATED MATTERS AND BASIS OF PRESENTATION	12 Months Ended
	Dec. 31, 2017
DESCRIPTION OF BUSINESS AND RELATED MATTERS	DESCRIPTION OF BUSINESS AND RELATED MATTERS The Company and Related Matters Altice USA, Inc. ("Altice USA" or the "Company") was incorporated in Delaware on September 14, 2015 . As of December 31, 2017 , Altice USA is majority‑owned by Altice N.V., a public company with limited liability (naamloze vennootshcap) under Dutch law. Upon the completion of the Altice N.V. distribution discussed below, the Company will no longer be majority-owned by Altice N.V. The Company provides broadband communications and video services in the United States. It delivers broadband, pay television, telephony services, proprietary content and advertising services to residential and business customers. Altice N.V., through a subsidiary, acquired Cequel Corporation ("Cequel" or "Suddenlink") on December 21, 2015 and Cequel was contributed to Altice USA on June 9, 2016 . Altice USA had no operations of its own other than the issuance of debt prior to the contribution of Cequel on June 9, 2016 by Altice N.V. The results of operations of Cequel for the year ended December 31, 2016 have been included in the results of operations of Altice USA for the same periods, as Cequel was under common control with Altice USA. Altice USA acquired Cablevision Systems Corporation ("Cablevision" or "Optimum") on June 21, 2016 (see discussion below) and the results of operations of Cablevision are included with the results of operations of Cequel for the year ended December 31, 2017 . The year ended December 31, 2016 operating results include the operating results of Cablevision from the date of acquisition, June 21, 2016. The accompanying consolidated financial statements include the accounts of the Company and all subsidiaries in which the Company has a controlling interest. All significant inter-company accounts and transactions have been eliminated in consolidation. The Company classifies its operations into two reportable segments: Cablevision, which operates in the New York metropolitan area, and Cequel, which principally operates in markets in the south‑central United States. Initial Public Offering In June 2017, the Company completed its initial public offering ("IPO") of 71,724,139 shares of its Class A common stock ( 12,068,966 shares sold by the Company and 59,655,173 shares sold by existing stockholders) at a price to the public of $30.00 per share, including the underwriters full exercise of their option to purchase 7,781,110 shares to cover overallotments. At the date of the IPO, Altice N.V. owned approximately 70.2% of the Company's issued and outstanding common stock, which represented approximately 98.2% of the voting power of the Company's outstanding common stock. The Company’s Class A common stock began trading on June 22, 2017, on the New York Stock Exchange under the symbol "ATUS". In connection with the sale of its Class A common stock, the Company received proceeds of approximately $362,069 , before deducting the underwriting discount and expenses directly related to the issuance of the securities of $12,998 . The Company did not receive any proceeds from the sale of shares by the selling stockholders. In July 2017, the Company used approximately $350,120 of the proceeds to fund the redemption of $315,779 principal amount of 10.875% senior notes that mature in 2025 issued by CSC Holdings, an indirect wholly-owned subsidiary of the Company, and the related call premium of approximately $34,341 . The following organizational transactions were consummated prior to the IPO: • the Company amended and restated its certificate of incorporation to, among other things, provide for Class A common stock, Class B common stock and Class C common stock; • BC Partners LLP ("BCP") and Canada Pension Plan Investment Board (‘‘CPPIB and together with BCP, the‘‘Co-Investors’’) and Uppernext S.C.S.p. ("Uppernext"), an entity controlled by Mr. Patrick Drahi (founder and controlling stockholder of Altice N.V.), exchanged their indirect ownership interest in the Company for shares of the Company’s common stock; • Neptune Management LP (‘‘Management LP’’) redeemed its Class B units for shares of the Company’s common stock that it received from the redemption of its Class B units in Neptune Holding US LP; • the Company converted $525,000 aggregate principal amount of notes issued by the Company to the Co-Investors (together with accrued and unpaid interest and applicable premium) into shares of the Company’s common stock at the IPO price (see Note 9 for further details); • $1,225,000 aggregate principal amount of notes issued by the Company to a subsidiary of Altice N.V. (together with accrued and unpaid interest and applicable premium) was transferred to CVC 3 B.V., an indirect subsidiary of Altice N.V. ("CVC 3") and then the Company converted such notes into shares of the Company’s common stock at the IPO price (see Note 9 for further details); • the Co-Investors, Neptune Holding US LP, A4 S.A. (an entity controlled by the family of Mr. Drahi), and former Class B unitholders of Management LP (including Uppernext) exchanged shares of the Company’s common stock for new shares of the Company’s Class A common stock; and • CVC 3 and A4 S.A. exchanged shares of the Company’s common stock for new shares of the Company’s Class B common stock. Acquisition of Cablevision Systems Corporation On June 21, 2016 (the "Cablevision Acquisition Date"), pursuant to the Agreement and Plan of Merger (the "Merger Agreement"), dated as of September 16, 2015 , by and among Cablevision, Altice N.V., Neptune Merger Sub Corp., a wholly-owned subsidiary of Altice N.V. ("Merger Sub"), Merger Sub merged with and into Cablevision, with Cablevision surviving the merger (the "Cablevision Acquisition"). In connection with the Cablevision Acquisition, each outstanding share of the Cablevision NY Group Class A common stock, par value $0.01 per share ("CNYG Class A Shares"), and Cablevision NY Group Class B common stock, par value $0.01 per share ("CNYG Class B Shares", and together with the CNYG Class A Shares, the "Shares"), and together with the Cablevision NY Group Class A common stock, the "Shares" other than Shares owned by Cablevision, Altice N.V. or any of their respective wholly-owned subsidiaries, in each case not held on behalf of third parties in a fiduciary capacity, received $34.90 in cash without interest, less applicable tax withholdings (the "Cablevision Acquisition Consideration"). Pursuant to an agreement, dated December 21, 2015 , by and among CVC 2 B.V., CIE Management IX Limited, for and on behalf of the limited partnerships BC European Capital IX-1 through 11 and Canada Pension Plan Investment Board, certain affiliates of BCP and CPPIB (the "Co-Investors") funded approximately $1,000,000 toward the payment of the aggregate Per Share Cablevision Acquisition Consideration, and indirectly acquired approximately 30% of the Shares of Cablevision. Also in connection with the Cablevision Acquisition, outstanding equity-based awards granted under Cablevision’s equity plans were cancelled and converted into cash based upon the $34.90 per Share Cablevision Acquisition Consideration in accordance with the original terms of the awards. The total consideration for the outstanding CNYG Class A Shares, the outstanding CNYG Class B Shares, and the equity-based awards amounted to $9,958,323 . In connection with the Cablevision Acquisition, in October 2015, Neptune Finco Corp. ("Finco"), an indirect wholly-owned subsidiary of Altice N.V. formed to complete the financing described herein and the merger with CSC Holdings, LLC ("CSC Holdings"), a wholly-owned subsidiary of Cablevision, borrowed an aggregate principal amount of $3,800,000 under a term loan facility (the "Term Credit Facility") and entered into revolving loan commitments in an aggregate principal amount of $2,000,000 (the "Revolving Credit Facility" and, together with the Term Credit Facility, the "Credit Facilities"). Finco also issued $1,800,000 aggregate principal amount of 10.125% senior notes due 2023 (the "2023 Notes"), $2,000,000 aggregate principal amount of 10.875% senior notes due 2025 (the "2025 Notes"), and $1,000,000 aggregate principal amount of 6.625% senior guaranteed notes due 2025 (the "2025 Guaranteed Notes") (collectively the "Cablevision Acquisition Notes"). On June 21, 2016 , immediately following the Cablevision Acquisition, Finco merged with and into CSC Holdings, with CSC Holdings surviving the merger (the "CSC Holdings Merger"), and the Cablevision Acquisition Notes and the Credit Facilities became obligations of CSC Holdings. On June 21, 2016 , in connection with the Cablevision Acquisition, the Company issued notes payable to affiliates and related parties aggregating $1,750,000 , of which $875,000 bore interest at 10.75% and $875,000 bore interest at 11% . See Note 9 for a discussion regarding the conversion of these notes payable to shares of the Company's common stock prior to the consummation of the IPO. The Cablevision Acquisition was accounted for as a business combination in accordance with ASC Topic 805. Accordingly, the Company stepped up 100% of the assets and liabilities assumed to their fair value at the Cablevision Acquisition Date. See Note 3 for further details. Acquisition of Cequel Corporation On December 21, 2015 , Altice N.V., though a subsidiary, acquired approximately 70% of the total outstanding equity interests in Cequel (the "Cequel Acquisition") from the direct and indirect stockholders of Cequel Corporation (the "Sellers"). The consideration for the acquired equity interests, which was based on a total equity valuation for 100% of the capital and voting rights of Cequel, was $3,973,528 , including $2,797,928 of cash consideration, $675,600 of retained equity held by entities affiliated with BC Partners and CPPIB and $500,000 funded by the issuance by an affiliate of Altice N.V. of a senior vendor note that was subscribed by entities affiliated with BC Partners and CPPIB. Following the closing of the Cequel Acquisition, entities affiliated with BC Partners and CPPIB retained a 30% equity interest in a parent entity of the Company. In addition, the carried interest plans of the stockholders were cashed out whereby payments were made to participants in such carried interest plans, including certain officers and directors of Cequel. Altice N.V. Distribution On January 8, 2018, Altice N.V. announced plans for the separation of the Company from Altice N.V. Altice N.V. will distribute substantially all of its equity interest in the Company through a distribution in kind to holders of Altice N.V.'s common shares A and common shares B (the “Distribution”). Following the Distribution, Altice N.V. will no longer own a controlling equity interest in the Company, and the Company will operate independently from Altice N.V. The implementation of the Distribution is expected to be subject to certain conditions precedent being satisfied or waived. Although Altice N.V. and the Company have not yet negotiated the final terms of the Distribution and related transactions, the Company expects that the following will be conditions to the Distribution: • Approval of Altice N.V. shareholders of (i) the distribution in kind and (ii) the board resolution approving the change in identity and character of the business of Altice N.V. resulting from the Distribution; • Receipt of certain U.S. regulatory approvals, which could take up to 180 days; • This Registration Statement filed on January 8, 2018 being declared effective by the U.S. Securities and Exchange Commission (the ‘‘Commission’’); • The entry into the Master Separation Agreement and the entry into, amendments to or termination of various arrangements between Altice N.V. and the Company, such as a license to use the Altice brand, the stockholders’ agreement among Altice USA, Altice N.V. and certain other parties and the management agreement pursuant to which the Company pays a quarterly management fee to Altice N.V.; and • The declaration and payment of a one-time $1.5 billion dividend to Altice USA stockholders as of a record date prior to the Distribution (the ‘‘Pre-Distribution Dividend’’). Prior to Altice N.V.'s announcement of the Distribution, the Board of Directors of Altice USA, acting through its independent directors, approved in principle the payment of the Pre-Distribution Dividend to all shareholders immediately prior to completion of the separation. Formal approval of the Pre-Distribution Dividend and setting of a record date are expected to occur in the second quarter of 2018. The payment of the Pre-Distribution Dividend will be funded with available Cablevision revolving facility capacity and available cash from new financings, completed in January 2018, at CSC Holdings LLC, a wholly-owned subsidiary of Cablevision. In addition, the Board of Directors of Altice USA has authorized a share repurchase program of $2.0 billion , effective following completion of the separation. In connection with the Distribution, it is expected that the Management Advisory and Consulting Services Agreement with Altice N.V. which provides certain consulting, advisory and other services will be terminated. Compensation under the terms of the agreement is an annual fee of $30,000 paid by the Company. Acquisition of Altice Technical Services US Corp In January 2018, the Company acquired 70% of the equity interests in Altice Technical Services US Corp. ("ATS") for $1.00 (the "ATS Acquisition") and the Company expects to become the owner of 100% of the equity interests in ATS prior to the Distribution. ATS was previously owned by Altice N.V. and a member of ATS's management through a holding company. As a result of the ATS Acquisition, the operations of ATS will be combined with the Company's operations in 2018. As the acquisition is a combination of businesses under common control, the Company will retroactively combine the results of operations and related assets and liabilities of ATS for all periods. The following reflects the retroactive combination of ATS’s revenue, operating expenses and operating income for the period indicated: Year Ended December 31, 2017 Revenue $ 9,325,465 Operating expenses 8,482,728 Operating income $ 842,737 In connection with the ATS Acquisition, the Company will record goodwill of $23,101 , representing the amount previously transferred to ATS. See Note 14 regarding the Company's activities with ATS in 2017.
Cablevision Systems Corporation And Subsidiaries
DESCRIPTION OF BUSINESS AND RELATED MATTERS	DESCRIPTION OF BUSINESS, RELATED MATTERS AND BASIS OF PRESENTATION The Company and Related Matters Cablevision Systems Corporation ("Cablevision"), through its wholly-owned subsidiary CSC Holdings, LLC ("CSC Holdings,") and collectively with Cablevision, the "Company"), owns and operates cable systems and owns companies that provide regional news, local programming and advertising sales services for the cable television industry and Ethernet-based data, Internet, voice and video transport and managed services to the business market. The Company operates and reports financial information in one segment. Prior to the sale of a 75% interest in Newsday LLC on July 7, 2016, the Company consolidating the operating results of Newsday. Effective July 7, 2016, the operating results of Newsday are no longer consolidated with those of the Company and the Company's 25% interest in the operating results of Newsday is recorded on the equity basis (see Note 16). Altice Merger On June 21, 2016 (the "Merger Date"), pursuant to the Agreement and Plan of Merger (the "Merger Agreement"), dated as of September 16, 2015, by and among Cablevision, Altice N.V. ("Altice"), Neptune Merger Sub Corp., a wholly-owned subsidiary of Altice ("Merger Sub"), Merger Sub merged with and into Cablevision, with Cablevision surviving the merger (the "Merger"). In connection with the Merger, each outstanding share of the Cablevision NY Group Class A common stock, par value $0.01 per share ("CNYG Class A Shares"), and Cablevision NY Group Class B common stock, par value $0.01 per share ("CNYG Class B Shares", and together with the CNYG Class A Shares, the "Shares") other than (i) Shares owned by Cablevision, Altice or any of their respective wholly-owned subsidiaries, in each case not held on behalf of third parties in a fiduciary capacity, received $34.90 in cash without interest, less applicable tax withholdings (the "Merger Consideration"). Pursuant to an agreement, dated December 21, 2015, by and among CVC 2B.V., CIE Management IX Limited, for and on behalf of the limited partnerships BC European Capital IX-1through 11 and Canada Pension Plan Investment Board, certain affiliates of BCP and CPPIB (the "Co-Investors") funded approximately $1,000,000 toward the payment of the aggregate Merger Consideration, and indirectly acquired approximately 30% of the Shares of Cablevision. Also in connection with the Merger, outstanding equity-based awards granted under Cablevision’s equity plans were cancelled and converted into cash based upon the $34.90 per Share merger price in accordance with the original terms of the awards. The total consideration for the outstanding CNYG Class A Shares, the outstanding CNYG Class B Shares, and the equity-based awards amounted to $9,958,323 . In connection with the Merger, in October 2015, Neptune Finco Corp. ("Finco"), an indirect wholly-owned subsidiary of Altice formed to complete the financing described herein and the merger with CSC Holdings, borrowed an aggregate principal amount of $3,800,000 under a term loan facility (the "Term Credit Facility") and entered into revolving loan commitments in an aggregate principal amount of $2,000,000 (the "Revolving Credit Facility" and, together with the Term Credit Facility, the "Credit Facilities"). Finco also issued $1,800,000 aggregate principal amount of 10.125% senior notes due 2023 (the "2023 Notes"), $2,000,000 aggregate principal amount of 10.875% senior notes due 2025 (the "2025 Notes"), and $1,000,000 aggregate principal amount of 6.625% senior guaranteed notes due 2025 (the "2025 Guaranteed Notes") (collectively the "Merger Notes"). On June 21, 2016, immediately following the Merger, Finco merged with and into CSC Holdings, with CSC Holdings surviving the merger (the "CSC Holdings Merger"), and the Merger Notes and the Credit Facilities became obligations of CSC Holdings. The accompanying financial statements represent the operating results and cash flows of the Company for the period January 1, 2016 to June 20, 2016 (Predecessor) and for the year ended December 31, 2015. The operating results of the Company for the period June 21, 2016 to December 31, 2016 (Successor) are incorporated in the consolidated financial statements of Altice USA, Inc. Basis of Presentation Principles of Consolidation The accompanying consolidated financial statements of Cablevision include the accounts of Cablevision and its majority-owned subsidiaries. Cablevision has no business operations independent of CSC Holdings, whose operating results and financial position are consolidated into Cablevision. All significant intercompany transactions and balances between Cablevision and CSC Holdings and their respective consolidated subsidiaries are eliminated in consolidation. Use of Estimates in Preparation of Financial Statements The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. See Note 12 for a discussion of fair value estimates. Reclassifications Certain reclassifications have been made in the consolidated financial statements in the 2015 financial statements to conform to the 2016 presentation.

CVC - SUMMARY OF SIGNIFICANT AC

CVC - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2017
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Summary of Significant Accounting Policies Revenue Recognition The Company recognizes pay television, broadband, and telephony services revenues as the services are provided to customers. Revenue received from customers who purchase bundled services at a discounted rate is allocated to each product in a pro-rata manner based on the individual product’s selling price (generally, the price at which the product is regularly sold on a standalone basis). Installation revenue for the Company's pay television, broadband and telephony services is recognized as installations are completed, as direct selling costs have exceeded this revenue in all periods reported. Advertising revenues are recognized when commercials are aired. Revenues derived from other sources are recognized when services are provided or events occur. Multiple-Element Transactions In the normal course of business, the Company may enter into multiple-element transactions where it is simultaneously both a customer and a vendor with the same counterparty or in which it purchases multiple products and/or services, or settles outstanding items contemporaneously with the purchase of a product or service, from a single counterparty. The Company's policy for accounting for each transaction negotiated contemporaneously is to record each deliverable of the transaction based on its best estimate of selling price in a manner consistent with that used to determine the price to sell each deliverable on a standalone basis. In determining the fair value of the respective deliverable, the Company will utilize quoted market prices (as available), historical transactions or comparable transactions. Gross Versus Net Revenue Recognition In the normal course of business, the Company is assessed non-income related taxes by governmental authorities, including franchising authorities (generally under multi-year agreements), and collects such taxes from its customers. The Company's policy is that, in instances where the tax is being assessed directly on the Company, amounts paid to the governmental authorities and amounts received from the customers are recorded on a gross basis. That is, amounts paid to the governmental authorities are recorded as programming and other direct costs and amounts received from the customer are recorded as revenue. For the years ended December 31, 2017 and 2016, the amount of franchise fees and certain other taxes and fees included as a component of revenue aggregated $259,075 and $154,732 , respectively. Technical and Operating Expenses Costs of revenue related to sales of services are classified as "programming and other direct costs" in the accompanying consolidated statements of operations. Programming Costs Programming expenses related to the Company's pay television service represent fees paid to programming distributors to license the programming distributed to customers. This programming is acquired generally under multi-year distribution agreements, with rates usually based on the number of customers that receive the programming. If there are periods when an existing distribution agreement has expired and the parties have not finalized negotiations of either a renewal of that agreement or a new agreement for certain periods of time, the Company continues to carry and pay for these services until execution of definitive replacement agreements or renewals. The amount of programming expense recorded during the interim period is based on the Company's estimates of the ultimate contractual agreement expected to be reached, which is based on several factors, including previous contractual rates, customary rate increases and the current status of negotiations. Such estimates are adjusted as negotiations progress until new programming terms are finalized. In addition, the Company has received, or may receive, incentives from programming distributors for carriage of the distributors' programming. The Company generally recognizes these incentives as a reduction of programming costs in "programming and other direct costs", generally over the term of the distribution agreement. Advertising Expenses Advertising costs are charged to expense when incurred and are reflected in "other operating expenses" in the accompanying consolidated statements of operations. Advertising costs amounted to $224,120 and $135,513 for the years ended December 31, 2017 and 2016, respectively. Share-Based Compensation Share-based compensation expense is based on the fair value of the portion of share-based payment awards that are ultimately expected to vest. Share-based compensation cost relates to awards of units in a carried unit plan and options. For carried interest units, the Company measures share-based compensation cost at the grant date fair value and recognizes the expense over the requisite service period or when it is probable any related performance condition will be met. For carried interest units with graded vesting requirement, compensation cost is recognized on an accelerated method under the graded vesting method over the requisite service period for the carried interest unit. Carried interest units that vest entirely at the end of the vesting requirement are expensed on a straight-line basis. The Company estimated the fair value of carried interest units using an option pricing model. Key inputs that were used in applying the option pricing method were total equity value, equity volatility, risk free rate and time to liquidity event. The estimate of total equity value was determined using a combination of the income approach, which incorporated cash flow projections that were discounted at an appropriate rate, and the market approach, which involved applying a market multiple to the Company’s projected operating results. The Company estimated volatility based on the historical equity volatility of comparable publicly-traded companies. Subsequent to the IPO, such subjective valuations and estimates were no longer necessary as the Company relied on the market price of the Company’s common stock to determine the fair value of share-based compensation awards. See Note 13 to the consolidated financial statements for additional information about our share-based compensation. For stock option awards, the Company recognizes compensation expense based on the estimated grant date fair value using the Black-Scholes valuation model. For options not subject to performance based vesting conditions, the Company recognizes the compensation expense using a straight-line amortization method. Income Taxes The Company's provision for income taxes is based on current period income, changes in deferred tax assets and liabilities and changes in estimates with regard to uncertain tax positions. Deferred tax assets are subject to an ongoing assessment of realizability. The Company provides deferred taxes for the outside basis difference of its investment in partnerships. Cash and Cash Equivalents The Company's cash investments are placed with money market funds and financial institutions that are investment grade as rated by Standard & Poor's and Moody's Investors Service. The Company selects money market funds that predominantly invest in marketable, direct obligations issued or guaranteed by the United States government or its agencies, commercial paper, fully collateralized repurchase agreements, certificates of deposit, and time deposits. The Company considers the balance of its investment in funds that substantially hold securities that mature within three months or less from the date the fund purchases these securities to be cash equivalents. The carrying amount of cash and cash equivalents either approximates fair value due to the short-term maturity of these instruments or are at fair value. Accounts Receivable Accounts receivable are recorded at net realizable value. The Company periodically assesses the adequacy of valuation allowances for uncollectible accounts receivable by evaluating the collectability of outstanding receivables and general factors such as historical collection experience, length of time individual receivables are past due, and the economic and competitive environment. Investments Investment securities and investment securities pledged as collateral are classified as trading securities and are stated at fair value with realized and unrealized holding gains and losses included in net income. Long-Lived Assets and Amortizable Intangible Assets Property, plant and equipment, including construction materials, are carried at cost, and include all direct costs and certain indirect costs associated with the construction of cable systems, and the costs of new equipment installations. Equipment under capital leases is recorded at the present value of the total minimum lease payments. Depreciation on equipment is calculated on the straight-line basis over the estimated useful lives of the assets or, with respect to equipment under capital leases and leasehold improvements, amortized over the shorter of the lease term or the assets' useful lives and reported in depreciation and amortization (including impairments) in the consolidated statements of operations. The Company capitalizes certain internal and external costs incurred to acquire or develop internal-use software. Capitalized software costs are amortized over the estimated useful life of the software and reported in depreciation and amortization. Customer relationships, trade names and other intangibles established in connection with acquisitions that are finite-lived are amortized in a manner that reflects the pattern in which the projected net cash inflows to the Company are expected to occur, such as the sum of the years' digits method, or when such pattern does not exist, using the straight-line basis over their respective estimated useful lives. The Company reviews its long-lived assets (property, plant and equipment, and intangible assets subject to amortization that arose from acquisitions) for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the expected cash flows, undiscounted and without interest, is less than the carrying amount of the asset, an impairment loss is recognized as the amount by which the carrying amount of the asset exceeds its fair value. Goodwill and Indefinite-Lived Intangible Assets Goodwill and the value of franchises acquired in purchase business combinations which have indefinite useful lives are not amortized. Rather, such assets are tested for impairment annually or upon the occurrence of a triggering event. The Company assesses qualitative factors for its reporting units that carry goodwill. If the qualitative assessment results in a conclusion that it is more likely than not that the fair value of a reporting unit exceeds the carrying value, then no further testing is performed for that reporting unit. When the qualitative assessment is not used, or if the qualitative assessment is not conclusive and it is necessary to calculate the fair value of a reporting unit, then the impairment analysis for goodwill is performed at the reporting unit level using a two-step approach. The first step of the goodwill impairment test is used to identify potential impairment by comparing the fair value of the reporting unit with its carrying amount, including goodwill utilizing an enterprise-value based premise approach. If the carrying amount of the reporting unit exceeds its fair value, the second step of the goodwill impairment test is performed to measure the amount of goodwill impairment loss, if any. The second step of the goodwill impairment test compares the implied fair value of the reporting unit's goodwill with the carrying amount of that goodwill. If the carrying amount of the reporting unit's goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. The implied fair value of goodwill is determined in the same manner as the amount of goodwill which would be recognized in a business combination. The Company assesses qualitative factors to determine whether it is necessary to perform the one-step quantitative identifiable indefinite-lived intangible assets impairment test. This quantitative test is required only if the Company concludes that it is more likely than not that a unit of accounting’s fair value is less than its carrying amount. When the qualitative assessment is not used, or if the qualitative assessment is not conclusive, the impairment test for other intangible assets not subject to amortization requires a comparison of the fair value of the intangible asset with its carrying value. If the carrying value of the indefinite-lived intangible asset exceeds its fair value, an impairment loss is recognized in an amount equal to that excess. Deferred Financing Costs Deferred financing costs are being amortized to interest expense using the effective interest method over the terms of the related debt. Derivative Financial Instruments The Company accounts for derivative financial instruments as either assets or liabilities measured at fair value. The Company uses derivative instruments to manage its exposure to market risks from changes in certain equity prices and interest rates and does not hold or issue derivative instruments for speculative or trading purposes. These derivative instruments are not designated as hedges, and changes in the fair values of these derivatives are recognized in the statements of operations as gains (losses) on derivative contracts. Commitments and Contingencies Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when the Company believes it is probable that a liability has been incurred and the amount of the contingency can be reasonably estimated. Recently Adopted Accounting Pronouncement In March 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-09, Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which provides simplification of income tax accounting for share-based payment awards. The new guidance became effective for the Company on January 1, 2017. Amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures, and intrinsic value were applied using the modified retrospective transition method. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term were applied prospectively. The Company elected to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using the prospective transition method. In connection with the adoption on January 1, 2017, a deferred tax asset of approximately $310,771 for previously unrealized excess tax benefits was recognized with the offset recorded to accumulated deficit. Recently Issued But Not Yet Adopted Accounting Pronouncements In February 2018, the FASB issued ASU No. 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220) Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The primary provision of ASU No. 2018-02 allows for the reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. ASU 2018-02 also requires certain disclosures about stranded tax effects. ASU No. 2018‑02 is effective for the Company on January 1, 2019, with early adoption permitted and will be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act is recognized. In May 2017, the FASB issued ASU No. 2017‑09, Compensation- Stock Compensation (Topic 718). ASU No. 2017‑09 provides clarity and guidance on which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. ASU No. 2017‑09 is effective for the Company on January 1, 2018 and will be applied prospectively. In March 2017, the FASB issued ASU No. 2017‑07 Compensation-Retirement Benefits (Topic 715). ASU No. 2017‑07 requires that an employer disaggregate the service cost component from the other components of net benefit cost. It also provides guidance on how to present the service cost component and the other components of net benefit cost in the income statement and what component of net benefit cost is eligible for capitalization. ASU No. 2017‑07 is effective for the Company on January 1, 2018 and will be applied retrospectively. In connection with the adoption of ASU 2017-07, the Company will reclassify the non-service cost components of the Company's pension expense from primarily "Other operating expenses" to "Miscellaneous income (expense), net" on its consolidated statements of operations. The Company has elected to apply the practical expedient which allows it to reclassify amounts disclosed previously in the benefits plan note (Note 17 of the consolidated financial statements) as the basis for applying retrospective presentation for comparative periods, as the Company determined it was impracticable to disaggregate the cost components for amounts capitalized and amortized in those periods. In January 2017, the FASB issued ASU No. 2017‑04, Intangibles-Goodwill and Other (Topic 350). ASU No. 2017‑04 simplifies the subsequent measurement of goodwill by removing the second step of the two‑step impairment test. The amendment requires an entity to perform its annual, or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU No. 2017‑04 becomes effective for the Company on January 1, 2020 with early adoption permitted and will be applied prospectively. In January 2017, the FASB issued ASU No. 2017‑01, Business Combinations (Topic 805), Clarifying the Definition of a Business, which amends Topic 805 to interpret the definition of a business by adding guidance to assist in evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The new guidance is effective for the Company on January 1, 2018 and will be applied prospectively. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments which clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows. ASU No. 2016-15 also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. The new guidance is effective for the Company on January 1, 2018 and will be applied retrospectively. The Company does not believe that the adoption of ASU No. 2016-15 will have a material effect on its consolidated statements of cash flows. In February 2016, the FASB issued ASU No. 2016-02, Leases , which increases transparency and comparability by recognizing a lessee’s rights and obligations resulting from leases by recording them on the balance sheet as lease assets and lease liabilities. The new guidance becomes effective for the Company on January 1, 2019 with early adoption permitted and will be applied using the modified retrospective method. The Company has not yet completed the evaluation of the effect that ASU No. 2016-02 will have on its consolidated financial statements. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10), Recognition and Measurement of Financial Assets and Financial Liabilities. ASU No. 2016-01 modifies how entities measure certain equity investments and also modifies the recognition of changes in the fair value of financial liabilities measured under the fair value option. Entities will be required to measure equity investments that do not result in consolidation and are not accounted for under the equity method at fair value and recognize any changes in fair value in net income. For financial liabilities measured using the fair value option, entities will be required to record changes in fair value caused by a change in instrument-specific credit risk (own credit risk) separately in other comprehensive income. ASU No. 2016-01 is effective for the Company on January 1, 2018. The Company does expect the adoption of ASU No. 2016-01 to have any effect on its consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, requiring an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU No. 2014-09 will replace most existing revenue recognition guidance in GAAP. In August 2015, the FASB issued ASU No. 2015-14 that approved deferring the effective date by one year so that ASU No. 2014-09 is effective for the Company on January 1, 2018. In December 2016, the FASB issued ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers, in order to clarify the Codification and to correct any unintended application of the guidance. The amendments in this update affect the guidance in ASU No. 2014-09. The Company will adopt ASU No. 2014-09 on January 1, 2018 and will transition to the standard retrospectively. The adoption of ASU No. 2014-09 will not have a material impact on the Company’s financial position or results of operations. The adoption will, however, result in the deferral of certain installation revenue and the deferral of certain commission expenses. Additionally, the Company anticipates changes in the composition of revenue resulting from the allocation of value related to bundled services sold at a discount to residential customers. Common Stock of Altice USA At December 31, 2017, the Company had 246,982,292 shares of Class A common stock and 490,086,674 shares of Class B common stock, with a par value of $0.01 , issued and outstanding. Each holder of Class A common stock has one vote per share while holders of Class B common stock have twenty-five votes per share. Class B shares can be converted to Class A common stock at anytime with a conversion ratio of one Class A common share for one Class B common share. At December 31, 2016, the Company had 100 shares of common stock, with a par value of $0.01 , issued and outstanding. Dividends and Distributions The Company may pay dividends on its capital stock only from net profits and surplus as determined under Delaware law. If dividends are paid on the Altice USA common stock, holders of the Altice USA Class A common stock and Altice USA Class B common stock are entitled to receive dividends, and other distributions in cash, stock or property, equally on a per share basis, except that stock dividends with respect to Altice USA Class A common stock may be paid only with shares of Altice USA Class A common stock and stock dividends with respect to Altice USA Class B common stock may be paid only with shares of Altice USA Class B common stock. The Company's indentures restrict the amount of dividends and distributions in respect of any equity interest that can be made. Prior to the Company's IPO, the Company declared and paid cash distributions to stockholders aggregating $839,700 in the second quarter of 2017. In 2016, the Company declared cash distributions of $445,176 of which $365,559 were paid in 2016 and $79,617 were paid in the first quarter of 2017. Net Income (Loss) Per Share Basic net income (loss) per common share attributable to Altice USA stockholders is computed by dividing net income (loss) attributable to Altice USA stockholders by the weighted average number of common shares outstanding during the period. Diluted income per common share attributable to Altice USA stockholders reflects the dilutive effects of stock options. Diluted net loss per common share attributable to Altice USA stockholders excludes the effects of common stock equivalents as they are anti-dilutive. The weighted average number of shares used to compute basic and diluted net income (loss) per share reflect the retroactive impact of the organizational transactions, discussed in Note 1, that occurred prior to the Company's IPO. The following table presents a reconciliation of weighted average shares used in the calculation of the basic and diluted net income per share attributable to Altice USA stockholders for the year ended December 31, 2017: Basic weighted average shares outstanding 696,055,000 Effect of dilution: Stock options — Diluted weighted average shares outstanding 696,055,000 Anti-dilutive shares totaling approximately 14,000 shares, have been excluded from diluted weighted average shares outstanding for the year ended December 31, 2017. Concentrations of Credit Risk Financial instruments that may potentially subject the Company to a concentration of credit risk consist primarily of cash and cash equivalents and trade account receivables. The Company monitors the financial institutions and money market funds where it invests its cash and cash equivalents with diversification among counterparties to mitigate exposure to any single financial institution. The Company's emphasis is primarily on safety of principal and liquidity and secondarily on maximizing the yield on its investments. Management believes that no significant concentration of credit risk exists with respect to its cash and cash equivalents because of its assessment of the creditworthiness and financial viability of the respective financial institutions. The Company did not have a single customer that represented 10% or more of its consolidated revenues for the years ended December 31, 2017 and 2016, or 10% or more of its consolidated net trade receivables at December 31, 2017 and 2016, respectively. Use of Estimates in Preparation of Financial Statements The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. See Note 11 for a discussion of fair value estimates. Reclassifications Certain reclassifications have been made to the 2016 financial statements to conform to the 2017 presentation.
Cablevision Systems Corporation And Subsidiaries
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Summary of Significant Accounting Policies Revenue Recognition The Company recognizes video, high-speed data, and voice services revenues as the services are provided to customers. Revenue received from customers who purchase bundled services at a discounted rate is allocated to each product in a pro-rata manner based on the individual product’s selling price (generally, the price at which the product is regularly sold on a standalone basis). Installation revenue for the Company's video, consumer high-speed data and VoIP services is recognized as installations are completed, as direct selling costs have exceeded this revenue in all periods reported. Advertising revenues are recognized when commercials are aired. Revenues derived from other sources are recognized when services are provided or events occur. Multiple-Element Transactions In the normal course of business, the Company may enter into multiple-element transactions where it is simultaneously both a customer and a vendor with the same counterparty or in which it purchases multiple products and/or services, or settles outstanding items contemporaneous with the purchase of a product or service from a single counterparty. The Company's policy for accounting for each transaction negotiated contemporaneously is to record each deliverable of the transaction based on its best estimate of selling price in a manner consistent with that used to determine the price to sell each deliverable on a standalone basis. In determining the fair value of the respective deliverable, the Company will utilize quoted market prices (as available), historical transactions or comparable transactions. Gross Versus Net Revenue Recognition In the normal course of business, the Company is assessed non-income related taxes by governmental authorities, including franchising authorities (generally under multi-year agreements), and collects such taxes from its customers. The Company's policy is that, in instances where the tax is being assessed directly on the Company, amounts paid to the governmental authorities and amounts received from the customers are recorded on a gross basis. That is, amounts paid to the governmental authorities are recorded as programming and other direct costs and amounts received from the customer are recorded as revenue. For the period January 1, 2016 through June 20, 2016 and for the year ended December 31, 2015 , the amount of franchise fees and certain other taxes and fees included as a component of revenue aggregated $95,432 and $199,701 , respectively. Technical and Operating Expenses Costs of revenue related to sales of services are classified as "programming and other direct costs" in the accompanying consolidated statements of operations. Programming Costs Programming expenses related to the Company's video service represent fees paid to programming distributors to license the programming distributed to subscribers. This programming is acquired generally under multi-year distribution agreements, with rates usually based on the number of subscribers that receive the programming. There have been periods when an existing distribution agreement has expired and the parties have not finalized negotiations of either a renewal of that agreement or a new agreement for certain periods of time. In substantially all these instances, the Company continues to carry and pay for these services until execution of definitive replacement agreements or renewals. The amount of programming expense recorded during the interim period is based on the Company's estimates of the ultimate contractual agreement expected to be reached, which is based on several factors, including previous contractual rates, customary rate increases and the current status of negotiations. Such estimates are adjusted as negotiations progress until new programming terms are finalized. In addition, the Company has received, or may receive, incentives from programming distributors for carriage of the distributors' programming. The Company generally recognizes these incentives as a reduction of programming costs in "programming and other direct costs", generally over the term of the distribution agreement. Advertising Expenses Advertising costs are charged to expense when incurred and are reflected in "other operating expenses" in the accompanying consolidated statements of operations. Advertising costs amounted to $62,760 and $160,671 , for the period January 1, 2016 through June 20, 2016 and for the year ended December 31, 2015, respectively. Share-Based Compensation Share-based compensation expense is based on the fair value of the portion of share-based payment awards that are ultimately expected to vest. For share-based compensation awards that can be settled in cash, the Company recognizes compensation expense based on the estimated fair value of the award at each reporting period. For options and performance based option awards, Cablevision recognized compensation expense based on the estimated grant date fair value using the Black-Scholes valuation model. For options not subject to performance based vesting conditions, Cablevision recognized the compensation expense using a straight-line amortization method. For options subject to performance based vesting conditions, Cablevision recognized compensation expense based on the probable outcome of the performance criteria over the requisite service period for each tranche of awards. For restricted shares, Cablevision recognized compensation expense using a straight-line amortization method based on the grant date price of CNYG Class A common stock over the vesting period. For restricted stock units granted to non-employee director which vested 100% on the date of grant, compensation expense was recognized on the date of grant based on the grant date price of CNYG Class A common stock. For performance based restricted stock units ("PSUs") which cliff vested in three years, Cablevision recognized compensation expense on a straight-line basis over the vesting period based on the estimated number of shares of CNYG Class A common stock expected to be issued. Income Taxes The Company's provision for income taxes is based on current period income, changes in deferred tax assets and liabilities and changes in estimates with regard to uncertain tax positions. Deferred tax assets are subject to an ongoing assessment of realizability. The Company provides deferred taxes for the outside basis difference of its investment in partnerships. In the second quarter of 2016, the Company changed its accounting policy on a prospective basis to present interest expense relating to uncertain tax position as additional interest expense. Cash and Cash Equivalents The Company's cash investments are placed with money market funds and financial institutions that are investment grade as rated by Standard & Poor's and Moody's Investors Service. The Company selects money market funds that predominantly invest in marketable, direct obligations issued or guaranteed by the United States government or its agencies, commercial paper, fully collateralized repurchase agreements, certificates of deposit, and time deposits. The Company considers the balance of its investment in funds that substantially hold securities that mature within three months or less from the date the fund purchases these securities to be cash equivalents. The carrying amount of cash and cash equivalents either approximates fair value due to the short-term maturity of these instruments or are at fair value. Accounts Receivable Accounts receivable are recorded at net realizable value. The Company periodically assesses the adequacy of valuation allowances for uncollectible accounts receivable by evaluating the collectability of outstanding receivables and general factors such as historical collection experience, length of time individual receivables are past due, and the economic and competitive environment. Investments Investment securities and investment securities pledged as collateral are classified as trading securities and are stated at fair value with realized and unrealized holding gains and losses included in net income. Long-Lived Assets and Amortizable Intangible Assets Property, plant and equipment, including construction materials, are carried at cost, and include all direct costs and certain indirect costs associated with the construction of cable systems, and the costs of new equipment installations. Equipment under capital leases is recorded at the present value of the total minimum lease payments. Depreciation on equipment is calculated on the straight-line basis over the estimated useful lives of the assets or, with respect to equipment under capital leases and leasehold improvements, amortized over the shorter of the lease term or the assets' useful lives and reported in depreciation and amortization (including impairments) in the consolidated statements of operations. The Company capitalizes certain internal and external costs incurred to acquire or develop internal-use software. Capitalized software costs are amortized over the estimated useful life of the software and reported in depreciation and amortization (including impairments). Customer relationships, trade names and other intangibles established in connection with acquisitions that are finite-lived are amortized in a manner that reflects the pattern in which the projected net cash inflows to the Company are expected to occur, such as the sum of the years' digits method, or when such pattern does not exist, using the straight-line basis over their respective estimated useful lives. The Company reviews its long-lived assets (property, plant and equipment, and intangible assets subject to amortization that arose from acquisitions) for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the expected cash flows, undiscounted and without interest, is less than the carrying amount of the asset, an impairment loss is recognized as the amount by which the carrying amount of the asset exceeds its fair value. Goodwill and Indefinite-Lived Intangible Assets Goodwill and the value of franchises, trademarks, and certain other intangibles acquired in purchase business combinations which have indefinite useful lives are not amortized. Rather, such assets are tested for impairment annually or upon the occurrence of a triggering event. The Company assesses qualitative factors for its reporting units that carry goodwill. If the qualitative assessment results in a conclusion that it is more likely than not that the fair value of a reporting unit exceeds the carrying value, then no further testing is performed for that reporting unit. When the qualitative assessment is not used, or if the qualitative assessment is not conclusive and it is necessary to calculate the fair value of a reporting unit, then the impairment analysis for goodwill is performed at the reporting unit level using a two-step approach. The first step of the goodwill impairment test is used to identify potential impairment by comparing the fair value of the reporting unit with its carrying amount, including goodwill utilizing an enterprise-value based premise approach. If the carrying amount of the reporting unit exceeds its fair value, the second step of the goodwill impairment test is performed to measure the amount of goodwill impairment loss, if any. The second step of the goodwill impairment test compares the implied fair value of the reporting unit's goodwill with the carrying amount of that goodwill. If the carrying amount of the reporting unit's goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. The implied fair value of goodwill is determined in the same manner as the amount of goodwill which would be recognized in a business combination. The Company assesses qualitative factors to determine whether it is necessary to perform the one-step quantitative identifiable indefinite-lived intangible assets impairment test. This quantitative test is required only if the Company concludes that it is more likely than not that a unit of accounting’s fair value is less than its carrying amount. When the qualitative assessment is not used, or if the qualitative assessment is not conclusive, the impairment test for other intangible assets not subject to amortization requires a comparison of the fair value of the intangible asset with its carrying value. If the carrying value of the indefinite-lived intangible asset exceeds its fair value, an impairment loss is recognized in an amount equal to that excess. Deferred Financing Costs Deferred financing costs are being amortized to interest expense using the effective interest method over the terms of the related debt. Derivative Financial Instruments The Company accounts for derivative financial instruments as either assets or liabilities measured at fair value. The Company uses derivative instruments to manage its exposure to market risks from changes in certain equity prices and interest rates and does not hold or issue derivative instruments for speculative or trading purposes. These derivative instruments are not designated as hedges, and changes in the fair values of these derivatives are recognized in the statements of income as gains (losses) on derivative contracts. Commitments and Contingencies Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when the Company believes it is probable that a liability has been incurred and the amount of the contingency can be reasonably estimated. Recently Adopted Accounting Pronouncements In November 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2015-17 (Topic 740), Balance Sheet Classification of Deferred Taxes. This ASU amends existing guidance to require the presentation of deferred tax liabilities and assets as noncurrent within a classified statement of financial position. ASU No. 2015-17 was adopted by the Company as of June 30, 2016 and was applied prospectively to all deferred tax liabilities and assets. In September 2015, the FASB issued ASU No. 2015-16, Simplifying the Accounting for Measurement-Period Adjustments, which requires that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. Prior to the issuance of the standard, entities were required to retrospectively apply adjustments made to provisional amounts recognized in a business combination. ASU No. 2015-16 was adopted by the Company on January 1, 2016. In April 2015, the FASB issued ASU No. 2015-05, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement. ASU No. 2015-05 provides guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. ASU No. 2015-05 was adopted by the Company on January 1, 2016 and did not have a material impact on the Company's consolidated financial statements. In April 2015, the FASB issued ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Costs, which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability, consistent with the presentation of a debt discount. In August 2015, the FASB issued ASU No. 2015-15, Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements, which clarifies the treatment of debt issuance costs from line-of-credit arrangements after adoption of ASU No. 2015-03. ASU No. 2015-15 clarifies that the Securities and Exchange Commission staff would not object to an entity deferring and presenting debt issuance costs as an asset and subsequently amortizing the deferred debt issuance costs ratably over the term of the line-of-credit arrangement, regardless of whether there are any outstanding borrowings on the line-of-credit arrangement. ASU No. 2015-03 was adopted by the Company on January 1, 2016 representing a change in accounting principle and was applied retrospectively to all periods presented. Debt issuance costs, net for the Company of $67,119 , as of December 31, 2015 were reclassified from deferred financing costs and presented as a reduction to debt in the consolidated balance sheets. Debt issuance costs, net for the Company of $7,588 as of December 31, 2015 relating to its revolving credit facility were not impacted by the adoption of ASU No. 2015-03 and are reflected as long-term assets in the accompanying consolidated balance sheets. In August 2014, the FASB issued ASU No. 2014-15, Disclosures of Uncertainties about an Entity's Ability to Continue as a Going Concern, which requires management to evaluate whether there are conditions or events that raise substantial doubt about the entity's ability to continue as a going concern, and to provide certain disclosures when it is probable that the entity will be unable to meet its obligations as they become due within one year after the date that the financial statements are issued. ASU No. 2014-15 was adopted by the Company on January 1, 2016. In June 2014, the FASB issued ASU No. 2014-12, Compensation - Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved After the Requisite Service Period. ASU No. 2014-12 requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. Entities may apply the amendments in this ASU either: (a) prospectively to all awards granted or modified after the effective date; or (b) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. ASU No. 2014-12 was adopted by the Company on January 1, 2016 on a prospective basis and did not have any impact on the Company’s consolidated financial statements. Recently Issued But Not Yet Adopted Accounting Pronouncements In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, requiring an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU No. 2014-09 will replace most existing revenue recognition guidance in GAAP when it becomes effective and allows the use of either the retrospective or cumulative effect transition method. In August 2015, the FASB issued ASU No. 2015-14 that approved deferring the effective date by one year so that ASU No. 2014-09 would become effective for the Company on January 1, 2018. The FASB also approved, in July 2015, permitting the early adoption of ASU No. 2014-09, but not before the original effective date for the Company of January 1, 2017. In December 2016, the FASB issued ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers, in order to clarify the Codification and to correct any unintended application of the guidance. These items are not expected to have a significant effect on the current accounting standard. The amendments in this update affect the guidance in ASU No. 2014-09, which is not yet effective. ASU No. 2014-09 will be effective, reflecting the one-year deferral, for interim and annual periods beginning after December 15, 2017 (January 1, 2018 for the Company). Early adoption of the standard is permitted but not before the original effective date. Companies can transition to the standard either retrospectively or as a cumulative-effect adjustment as of the date of adoption. The Company is in the process of evaluating the impact that the adoption of ASU No. 2014-09 will have on its consolidated financial statements and selecting the method of transition to the new standard. We currently expect the adoption to impact the timing of the recognition of residential installation revenue and the recognition of commission expenses. In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash, which requires that the statement of cash flows disclose the change during the period in the total of cash, cash equivalents, restricted cash and restricted cash equivalents. Restricted cash should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of period total amounts shown on the statement of cash flows. ASU No. 2016-18 provides specific guidance on the presentation of restricted cash in the statement of cash flows. The new guidance becomes effective for the Company on January 1, 2019 with early adoption permitted and will be applied retrospectively. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments which clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows. ASU No. 2016-15 also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. The new guidance becomes effective for the Company on January 1, 2018 with early adoption permitted and will be applied retrospectively. The Company has not yet completed the evaluation of the effect that ASU No. 2016-15 will have on its consolidated financial statements. In March 2016, the FASB issued ASU 2016-09, Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which provides simplification of income tax accounting for share-based payment awards. The new guidance becomes effective for the Company on January 1, 2017 with early adoption permitted. Amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures, and intrinsic value will be applied using the modified retrospective transition method. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term will be applied prospectively. The Company may elect to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using either a prospective transition method or a retrospective transition method. In connection with the adoption on January 1, 2017, a deferred tax asset of approximately $309,000 for previously unrealized excess tax benefits will be recognized with the offset recorded to accumulated deficit. In February 2016, the FASB issued ASU 2016-02, Leases , which increases transparency and comparability by recognizing a lessee’s rights and obligations resulting from leases by recording them on the balance sheet as lease assets and lease liabilities. The new guidance becomes effective for the Company on January 1, 2019 with early adoption permitted and will be applied using the modified retrospective method. The Company has not yet completed the evaluation of the effect that ASU No. 2016-02 will have on its consolidated financial statements. Common Stock of Cablevision Prior to the Merger, each holder of CNYG Class A common stock had one vote per share while holders of CNYG Class B common stock had ten votes per share. CNYG Class B shares could be converted to CNYG Class A common stock at anytime with a conversion ratio of one CNYG Class A common share for one CNYG Class B common share. CNYG Class A stockholders were entitled to elect 25% of Cablevision's Board of Directors. CNYG Class B stockholders had the right to elect the remaining members of Cablevision's Board of Directors. In addition, CNYG Class B stockholders were parties to an agreement which had the effect of causing the voting power of these CNYG Class B stockholders to be cast as a block. The following table provides details of Cablevision's shares of common stock through the Merger Date: Shares of Common Stock Outstanding Class A Common Stock Class B Common Stock Balance at December 31, 2014 220,219,935 54,137,673 Employee and non-employee director stock transactions (a) 2,352,275 — Balance at December 31, 2015 222,572,210 54,137,673 Employee and non-employee director stock transactions (a) (185,276 ) — Balance at June 20, 2016 222,386,934 54,137,673 (a) Primarily included issuances of common stock in connection with employee and non-employee director exercises of stock options and restricted shares granted to employees, offset by shares acquired by the Company in connection with the fulfillment of employees' statutory tax withholding obligation for applicable income and other employment taxes and forfeited employee restricted shares. Dividends Pursuant to the terms of the Merger Agreement, Cablevision was not permitted to declare and pay dividends or repurchase stock, in each case, without the prior written consent of Altice. In accordance with these terms, Cablevision did not declare dividends during the period January 1, 2016 through June 20, 2016. During the period January 1, 2016 through June 20, 2016, Cablevision paid $4,066 related to restricted shares that vested in respect of dividends declared and accrued on the CNYG common stock in prior periods. Prior to the Merger, the Board of Directors of Cablevision had declared and paid the following cash dividends to stockholders of record on both its CNYG Class A common stock and CNYG Class B common stock: Declaration Date Dividend per Share Record Date Payment Date August 6, 2015 $0.15 August 21, 2015 September 10, 2015 May 1, 2015 $0.15 May 22, 2015 June 12, 2015 February 24, 2015 $0.15 March 16, 2015 April 3, 2015 Cablevision paid dividends aggregating $125,170 during the year ended December 31, 2015, including accrued dividends on vested restricted shares of $3,935 . Cablevision's and CSC Holdings' indentures and CSC Holdings' credit agreement restrict the amount of dividends and distributions in respect of any equity interest that can be made. Income (Loss) Per Share Basic income per common share attributable to Cablevision stockholders was computed by dividing net income attributable to Cablevision stockholders by the weighted average number of common shares outstanding during the period. Diluted income per common share attributable to Cablevision stockholders reflected the dilutive effects of stock options, restricted stock and restricted stock units. For such awards that were performance based, the diluted effect was reflected upon the achievement of the performance criteria. The following table presents a reconciliation of weighted average shares used in the calculations of the basic and diluted net income per share attributable to Cablevision stockholders: January 1, 2016 to June 20, 2016 Years Ended December 31, 2015 Basic weighted average shares outstanding 272,035 269,388 Effect of dilution: Stock options 4,444 3,532 Restricted stock 3,720 3,419 Diluted weighted average shares outstanding 280,199 276,339 Anti-dilutive shares (options whose exercise price exceeds the average market price of Cablevision's common stock during the period and certain restricted shares) totaling approximately 1,160,000 shares were excluded from diluted weighted average shares outstanding for the years ended 2015. There were no anti-dilutive shares excluded from diluted weighted average shares outstanding for the period January 1, 2016 to June 20, 2016. In addition, approximately 1,772,000 performance based restricted stock units for the year ended December 31, 2015 issued pursuant to the Company's former employee stock plan were also excluded from the diluted weighted average shares outstanding as the performance criteria on these awards had not yet been satisfied for the respective period. Net income (loss) per share for Cablevision subsequent to the merger is not presented since Cablevision's common stock is no longer publicly traded. Concentrations of Credit Risk Financial instruments that may potentially subject the Company to a concentration of credit risk consist primarily of cash and cash equivalents and trade account receivables. The Company monitors the financial institutions and money market funds where it invests its cash and cash equivalents with diversification among counterparties to mitigate exposure to any single financial institution. The Company's emphasis is primarily on safety of principal and liquidity and secondarily on maximizing the yield on its investments. Management believes that no significant concentration of credit risk exists with respect to its cash and cash equivalents balances because of its assessment of the creditworthiness and financial viability of the respective financial institutions. The Company did not have a single customer that represented 10% or more of its consolidated revenues for the period January 1, 2016 through June 20, 2016 and the year ended December 31, 2015, or 10% or more of its consolidated net trade receivables at December 31, 2015.

CVC - ALLOWANCE FOR DOUBTFUL AC

CVC - ALLOWANCE FOR DOUBTFUL ACCOUNTS	12 Months Ended
	Dec. 31, 2017
ALLOWANCE FOR DOUBTFUL ACCOUNTS	ALLOWANCE FOR DOUBTFUL ACCOUNTS Activity related to the Company's allowance for doubtful accounts is presented below: Balance at Beginning of Period Provision for Bad Debt Deductions/ Write-Offs and Other Charges Balance at End of Period Year Ended December 31, 2017 Allowance for doubtful accounts $ 11,677 $ 74,183 $ (72,440 ) $ 13,420 Year Ended December 31, 2016 Allowance for doubtful accounts $ 1,051 $ 53,249 $ (42,623 ) $ 11,677
Cablevision Systems Corporation And Subsidiaries
ALLOWANCE FOR DOUBTFUL ACCOUNTS	ALLOWANCE FOR DOUBTFUL ACCOUNTS Activity related to the allowance for doubtful accounts: Balance at Beginning of Period Provision for Bad Debt Deductions/ Write-Offs and Other Charges Balance at End of Period Period from January 1, 2016 through June 20, 2016 Allowance for doubtful accounts $ 6,039 $ 13,240 $ (12,378 ) $ 6,901 Year Ended December 31, 2015 Allowance for doubtful accounts $ 12,112 $ 35,802 $ (41,875 ) $ 6,039

CVC - SUPPLEMENTAL CASH FLOW IN

CVC - SUPPLEMENTAL CASH FLOW INFORMATION	12 Months Ended
	Dec. 31, 2017
SUPPLEMENTAL CASH FLOW INFORMATION	SUPPLEMENTAL CASH FLOW INFORMATION The Company's non-cash investing and financing activities and other supplemental data were as follows: Years Ended December 31, 2017 2016 Non-Cash Investing and Financing Activities: Continuing Operations: Conversion of notes payable to affiliates and related parties of $1,750,000 (together with accrued and unpaid interest and applicable premium) to common stock (See Note 9) $ 2,264,252 $ — Property and equipment accrued but unpaid 171,604 155,653 Distributions declared but not paid — 79,617 Leasehold improvements paid by landlord 3,998 — Notes payable to vendor 40,131 12,449 Capital lease obligations 9,385 — Deferred financing costs accrued but unpaid — 2,570 Supplemental Data: Cash interest paid 1,765,126 1,192,370 Income taxes paid, net 29,006 1,538
Cablevision Systems Corporation And Subsidiaries
SUPPLEMENTAL CASH FLOW INFORMATION	SUPPLEMENTAL CASH FLOW INFORMATION The Company's non-cash investing and financing activities and other supplemental data were as follows: January 1, 2016 to June 20, 2016 Years Ended December 31, 2015 Non-Cash Investing and Financing Activities: Continuing Operations: Property and equipment accrued but unpaid $ 68,356 $ 63,843 Notes payable to vendor — 8,318 Capital lease obligations — 19,987 Intangible asset obligations 290 1,121 Non-Cash Investing and Financing Activities: Dividends payable on unvested restricted share awards — 3,517 Supplemental Data: Continuing Operations: Cash interest paid 258,940 560,361 Income taxes paid, net 7,082 3,849

CVC - RESTRUCTURING AND OTHER E

CVC - RESTRUCTURING AND OTHER EXPENSE	12 Months Ended
	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
RESTRUCTURING COSTS AND OTHER EXPENSE	RESTRUCTURING AND OTHER EXPENSE Restructuring Beginning in the first quarter of 2016, the Company commenced its restructuring initiatives (the "2016 Restructuring Plan") that are intended to simplify the Company's organizational structure. The following table summarizes the activity for the 2016 Restructuring Plan: Severance and Other Employee Related Costs Facility Realignment and Other Costs Total Restructuring charges incurred in 2016 $ 215,420 $ 11,157 $ 226,577 Payments and other (113,301 ) (2,760 ) (116,061 ) Accrual balance at December 31, 2016 102,119 8,397 110,516 Restructuring charges 142,679 7,243 149,922 Payments and other (131,324 ) (6,014 ) (137,338 ) Accrual balance at December 31, 2017 $ 113,474 $ 9,626 $ 123,100 Cumulative costs to date relating to the 2016 Restructuring Plan amounted to $309,297 and $67,202 for our Cablevision segment and Cequel segment, respectively. Transaction Costs For the year ended December 31, 2017, the Company incurred transaction costs of $2,479 related to the acquisition of a business during the first quarter of 2017 and other transactions. For the year ended December 31, 2016, the Company incurred transaction costs of $13,845 , related to the acquisitions of Cablevision and Cequel.
Cablevision Systems Corporation And Subsidiaries
Restructuring Cost and Reserve [Line Items]
RESTRUCTURING COSTS AND OTHER EXPENSE	RESTRUCTURING AND OTHER EXPENSE Restructuring The Company recorded net restructuring charges (credits) of $2,299 and $(1,649) , for the period January 1, 2016 through June 20, 2016 and for the year ended December 31, 2015, respectively. The 2016 and 2015 restructuring expense (credit) primarily related to changes to the Company's previous estimates recorded in connection with the Company's prior restructuring plans. Subsequent to the Altice Merger, the Company commenced its restructuring initiatives (the "2016 Restructuring Plan") that are intended to simplify the Company's organizational structure. The 2016 Restructuring Plan resulted in charges of $188,847 associated with the elimination of positions primarily in corporate, administrative and infrastructure functions across the Company and estimated charges of $10,410 associated with facility realignment and other costs. Other Expense In connection with the Altice Merger, the Company incurred transaction costs of $19,924 and $17,862 for the period January 1, 2016 through June 20, 2016 and for the year ended December 31, 2015, respectively, which are reflected in restructuring and other expense in the consolidated statements of operations. Subsequent to the Altice Merger, the Company incurred transaction costs of $12,920 .

CVC - DISCONTINUED OPERATIONS

CVC - DISCONTINUED OPERATIONS	12 Months Ended
	Dec. 31, 2017
Cablevision Systems Corporation And Subsidiaries
DISCONTINUED OPERATIONS
DISCONTINUED OPERATIONS	DISCONTINUED OPERATIONS Loss from discontinued operations for the year ended December 31, 2015 amounted to $21,272 ( $12,541 , net of income taxes) and primarily reflects an expense of $21,000 ( $12,380 , net of income taxes) related to the settlement of a legal matter relating to Rainbow Media Holdings LLC, a business whose operations were previously discontinued (see Note 17).

CVC - PROPERTY, PLANT AND EQUIP

CVC - PROPERTY, PLANT AND EQUIPMENT	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
PROPERTY, PLANT AND EQUIPMENT	PROPERTY, PLANT AND EQUIPMENT Costs incurred in the construction of the Company's cable systems, including line extensions to, and upgrade of, the Company's hybrid fiber/coaxial infrastructure, initial placement of the feeder cable to connect a customer that had not been previously connected, and headend facilities are capitalized. These costs consist of materials, subcontractor labor, direct consulting fees, and internal labor and related costs associated with the construction activities. The internal costs that are capitalized consist of salaries and benefits of the Company's employees and the portion of facility costs, including rent, taxes, insurance and utilities, that supports the construction activities. These costs are depreciated over the estimated life of the plant ( 10 to 25 years) and headend facilities ( 4 to 25 years). Costs of operating the plant and the technical facilities, including repairs and maintenance, are expensed as incurred. Installation costs associated with the initial deployment of new customer premise equipment (“CPE”) necessary to provide pay television, broadband or telephony services are also capitalized. These costs include materials, subcontractor labor, internal labor, and other related costs associated with the connection activities. The departmental activities supporting the connection process are tracked through specific metrics, and the portion of departmental costs that is capitalized is determined through a time weighted activity allocation of costs incurred based on time studies used to estimate the average time spent on each activity. These installation costs are amortized over the estimated useful lives of the CPE necessary to provide pay television, broadband or telephony services. In circumstances where CPE tracking is not available, the Company estimates the amount of capitalized installation costs based on whether or not the business or residence had been previously connected to the network. These installation costs are depreciated over their estimated useful life of 3-5 years. The portion of departmental costs related to disconnecting services and removing CPE from a customer, costs related to connecting CPE that has been previously connected to the network and repair and maintenance are expensed as incurred. The estimated useful lives assigned to our property, plant and equipment are reviewed on an annual basis or more frequently if circumstances warrant and such lives are revised to the extent necessary due to changing facts and circumstances. Any changes in estimated useful lives are reflected prospectively. Property, plant and equipment (including equipment under capital leases) consist of the following assets, which are depreciated or amortized on a straight-line basis over the estimated useful lives shown below: December 31, 2017 December 31, 2016 Estimated Useful Lives Customer premise equipment $ 1,093,726 $ 871,049 3 to 5 years Headends and related equipment 1,626,293 1,482,631 4 to 25 years Infrastructure 3,998,503 3,740,494 3 to 25 years Equipment and software 917,698 735,012 3 to 10 years Construction in progress (including materials and supplies) 286,702 84,321 Furniture and fixtures 52,545 45,576 5 to 12 years Transportation equipment 137,886 135,488 5 to 10 years Buildings and building improvements 394,421 390,337 10 to 40 years Leasehold improvements 108,071 104,309 Term of lease Land 47,563 47,715 8,663,408 7,636,932 Less accumulated depreciation and amortization (2,599,579 ) (1,039,297 ) $ 6,063,829 $ 6,597,635 For the years ended December 31, 2017 and December 31, 2016, the Company capitalized certain costs aggregating $151,646 and $75,804 , respectively, related to the acquisition and development of internal use software, which are included in the table above. Depreciation expense on property, plant and equipment (including capital leases) for the years ended December 31, 2017 and 2016 amounted to $1,588,668 and $1,046,896 , respectively. The gross amount of buildings and equipment and related accumulated depreciation recorded under capital leases is presented below: December 31, 2017 2016 Buildings and equipment $ 48,936 $ 53,833 Less accumulated depreciation (12,972 ) (6,306 ) $ 35,964 $ 47,527
Cablevision Systems Corporation And Subsidiaries
Property, Plant and Equipment [Line Items]
PROPERTY, PLANT AND EQUIPMENT	PROPERTY, PLANT AND EQUIPMENT Costs incurred in the construction of the Company's cable systems, including line extensions to, and upgrade of, the Company's hybrid fiber/coaxial infrastructure, initial placement of the feeder cable to connect a customer that had not been previously connected, and headend facilities are capitalized. These costs consist of materials, subcontractor labor, direct consulting fees, and internal labor and related costs associated with the construction activities. The internal costs that are capitalized consist of salaries and benefits of the Company's employees and the portion of facility costs, including rent, taxes, insurance and utilities, that supports the construction activities. These costs are depreciated over the estimated life of the plant ( 10 to 25 years) and headend facilities ( 4 to 25 years). Costs of operating the plant and the technical facilities, including repairs and maintenance, are expensed as incurred. Costs associated with initial customer installations and the additions of network equipment necessary to enable advanced services are also capitalized. Costs capitalized as part of new customer installations include materials, subcontractor costs and internal direct labor costs, including service technicians and internal overhead costs incurred to connect the customer to the plant from the time of installation scheduling through the time service is activated and functioning. The internal direct labor cost capitalized is based on a combination of the actual and estimated time to complete the installation. Overhead capitalized consists mainly of employee benefits, such as payroll taxes and health insurance, directly associated with that portion of the capitalized labor and vehicle operating costs related to capitalizable activities. New connections are amortized over the estimated useful life of 5 years for customer wiring and feeder cable to the home. The portion of departmental costs related to disconnecting services, reconnection of a customer, and repair and maintenance are expensed as incurred. The estimated useful lives assigned to our property, plant and equipment are reviewed on an annual basis or more frequently if circumstances warrant and such lives are revised to the extent necessary due to changing facts and circumstances. Any changes in estimated useful lives are reflected prospectively. Property, plant and equipment (including equipment under capital leases) consist of the following assets, which are depreciated or amortized on a straight-line basis over the estimated useful lives shown below: December 31, 2015 Estimated Useful Lives Customer equipment $ 1,952,336 3 to 5 years Headends and related equipment 2,388,289 4 to 25 years Infrastructure 5,639,226 3 to 25 years Equipment and software 1,577,616 3 to 10 years Construction in progress (including materials and supplies) 87,412 Furniture and fixtures 96,561 5 to 12 years Transportation equipment 210,013 5 to 18 years Buildings and building improvements 322,267 10 to 40 years Leasehold improvements 354,136 Term of lease Land 14,507 12,642,363 Less accumulated depreciation and amortization (9,625,348 ) $ 3,017,015 During the period January 1, 2016 through June 20, 2016 and the year ended December 31, 2015 , the Company capitalized certain costs aggregating $58,409 and $144,349 , respectively, related to the acquisition and development of internal use software, which are included in the table above. Depreciation expense on property, plant and equipment (including capital leases) for the period January 1, 2016 through June 20, 2016 and the year ended December 31, 2015 amounted to $404,234 and $857,440 , respectively. At December 31, 2015, the gross amount of equipment and related accumulated amortization recorded under capital leases was as follows: December 31, 2015 Equipment $ 90,099 Less accumulated amortization (28,119 ) $ 61,980

CVC - OPERATING LEASES

CVC - OPERATING LEASES	12 Months Ended
	Dec. 31, 2017
Cablevision Systems Corporation And Subsidiaries
OPERATING LEASES	OPERATING LEASES The Company leases certain office, production, and transmission facilities under terms of leases expiring at various dates through 2035. The leases generally provide for escalating rentals over the term of the lease plus certain real estate taxes and other costs or credits. Costs associated with such operating leases are recognized on a straight-line basis over the initial lease term. The difference between rent expense and rent paid is recorded as deferred rent. In addition, the Company rents space on utility poles for its operations. The Company's pole rental agreements are for varying terms, and management anticipates renewals as they expire. Rent expense, including pole rentals, for the period January 1, 2016 through June 20, 2016 and the year ended December 31, 2015 amounted to $41,573 and $82,704 , respectively. The minimum future annual payments for all operating leases (with initial or remaining terms in excess of one year) during the next five years and thereafter, including pole rentals from January 1, 2017 through December 31, 2021, are as follows: 2017 $ 57,853 2018 52,206 2019 44,908 2020 41,221 2021 38,697 Thereafter 141,063

CVC - INTANGIBLE ASSETS

CVC - INTANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
INTANGIBLE ASSETS	INTANGIBLE ASSETS The following table summarizes information relating to the Company's acquired amortizable intangible assets: As of December 31, 2017 As of December 31, 2016 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Useful Lives Customer relationships $ 5,970,884 $ (1,409,021 ) $ 4,561,863 $ 5,925,884 $ (580,276 ) $ 5,345,608 8 to 18 years Trade names (a) 1,067,083 (588,574 ) 478,509 1,066,783 (83,397 ) 983,386 2 to 5 years Other amortizable intangibles 37,060 (10,978 ) 26,082 26,743 (3,093 ) 23,650 1 to 15 years $ 7,075,027 $ (2,008,573 ) $ 5,066,454 $ 7,019,410 $ (666,766 ) $ 6,352,644 (a) On May 23, 2017, Altice N.V. announced the adoption of a global brand to replace the Company's brands in the future, reducing the remaining useful lives of these trade name intangibles to three years from the date of the adoption, which reflected one year as an in-use asset and two years as a defensive asset. In December 2017, the Company made a decision to postpone the adoption of a global brand that would have replaced the Optimum brand, increasing the useful life of the Optimum trade name intangible asset to 5 years . Amortization expense for the years ended December 31, 2017 and 2016 and aggregated $1,341,807 and $653,410 , respectively. The following table sets forth the estimated amortization expense on intangible assets for the periods presented: Estimated amortization expense Year Ending December 31, 2018 $ 873,133 Year Ending December 31, 2019 777,846 Year Ending December 31, 2020 696,240 Year Ending December 31, 2021 616,718 Year Ending December 31, 2022 537,100 The following table summarizes information relating to the Company's acquired indefinite-lived intangible assets as of December 31, 2017 : As of December 31, 2017 As of December 31, 2016 Cablevision Cequel Total Cablevision Cequel Total Cable television franchises $ 8,113,575 $ 4,906,506 $ 13,020,081 $ 8,113,575 $ 4,906,506 $ 13,020,081 Goodwill 5,843,019 2,153,741 7,996,760 5,838,959 2,153,741 7,992,700 Total $ 13,956,594 $ 7,060,247 $ 21,016,841 $ 13,952,534 $ 7,060,247 $ 21,012,781 The carrying amount of goodwill is presented below: Gross goodwill as of January 1, 2016 $ 2,040,402 Goodwill recorded in connection with Cablevision Acquisition 5,838,959 Adjustments to purchase accounting relating to Cequel Acquisition 113,339 Gross goodwill as of January 1, 2017 7,992,700 Goodwill recorded in connection with acquisitions in the first and fourth quarters of 2017 (Cablevision Segment) 23,948 Adjustments to purchase accounting relating to Cablevision Acquisition 3,213 Transfer of Cablevision goodwill related to Altice Technical Services US Corp. (See Note 14 for further details) (23,101 ) Net goodwill as of December 31, 2017 $ 7,996,760
Cablevision Systems Corporation And Subsidiaries
Acquired Finite-Lived Intangible Assets [Line Items]
INTANGIBLE ASSETS	INTANGIBLE ASSETS The following table summarizes information relating to the Company's acquired intangible assets: December 31, 2015 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Useful Lives Customer relationships $ 39,414 $ (27,778 ) $ 11,636 10 to 18 years Trade names — — — Other amortizable intangibles 57,847 (32,532 ) 25,315 3 to 28 years $ 97,261 $ (60,310 ) $ 36,951 Amortization expense for the period January 1, 2016 through June 20, 2016 and the year ended December 31, 2015 amounted to $10,316 and $7,812 , respectively. The following table summarizes information relating to the Company's acquired indefinite-lived intangible assets: December 31, 2015 Cable television franchises $ 731,848 Trademarks and other assets 7,250 Goodwill 262,345 Total $ 1,001,443 The carrying amount of goodwill is presented below: Gross goodwill as of December 31, 2015 (Predecessor) $ 596,403 Accumulated impairment losses (334,058 ) Net goodwill as of June 20, 2016 $ 262,345 Impairment Charges Goodwill and indefinite-lived intangible assets are tested annually for impairment or earlier upon the occurrence of certain events or substantive changes in circumstances. No goodwill impairments were recorded for the period January 1, 2016 through June 20, 2016 and for the year ended December 31, 2015, respectively.

CVC - DEBT

CVC - DEBT	12 Months Ended
	Dec. 31, 2017
Debt Instrument [Line Items]
DEBT	DEBT CSC Holdings Credit Facilities In connection with the Cablevision Acquisition, in October 2015, Finco, a wholly-owned subsidiary of the Company, which merged with and into CSC Holdings on June 21, 2016, entered into a senior secured credit facility, which provides U.S. dollar term loans currently in an aggregate principal amount of $3,000,000 ( $2,985,000 outstanding at December 31, 2017) (the “CVC Term Loan Facility”, and the term loans extended under the CVC Term Loan Facility, the “CVC Term Loans”) and U.S. dollar revolving loan commitments in an aggregate principal amount of $2,300,000 (the “CVC Revolving Credit Facility” and, together with the Term Loan Facility, the “CVC Credit Facilities”), which are governed by a credit facilities agreement entered into by, inter alios , CSC Holdings, certain lenders party thereto and JPMorgan Chase Bank, N.A. as administrative agent and security agent (as amended, restated, supplemented or otherwise modified on June 20, 2016, June 21, 2016, July 21, 2016, September 9, 2016, December 9, 2016 and March 15, 2017, respectively, and as further amended, restated, supplemented or otherwise modified from time to time, the “CVC Credit Facilities Agreement”). The amendment to the CVC Credit Facilities Agreement entered into on September 9, 2016, extended the maturity date of the CVC Term Loan Facility to October 11, 2024. In October 2016, CSC Holdings used the net proceeds from the sale of $1,310,000 aggregate principal amount of 5.5% senior guaranteed notes due 2027 (the ‘‘2027 Guaranteed Notes’’) (after the deduction of fees and expenses) to prepay outstanding loans under the CSC Holdings Term Credit Facility that were not extended pursuant to this amendment. In connection with the prepayment of the Term Credit Facility, the Company wrote-off the deferred financing costs and the unamortized discount related to the existing term loan aggregating $102,894 . Additionally, the Company recorded deferred financing costs and an original issue discount of $7,249 and $6,250 , respectively, which are both being amortized to interest expense over the term of the Term Loan Facility. The amendment to the CVC Credit Facilities Agreement entered into on March 15, 2017 (“Extension Amendment”) increased the Term Loan by $500,000 to $3,000,000 and the maturity date for this facility was extended to July 17, 2025. The closing of the Extension Amendment occurred in April 2017 and the proceeds were used to refinance the entire $2,493,750 principal amount of existing Term Loans and redeem $500,000 of the 8.625% Senior Notes due September 2017 issued by Cablevision. In connection with the Extension Amendment and the redemption of the senior notes, the Company recorded a loss on extinguishment of debt and write-off of deferred financing costs aggregating $18,976 . During the year ended December 31, 2017, CSC Holdings borrowed $1,350,000 under its revolving credit facility ( $500,000 was used to make cash distributions to its stockholders) and made voluntary repayments aggregating $1,075,256 with cash on hand. Under the Extension Amendment, the Company is required to make scheduled quarterly payments equal to 0.25% (or $7,500 ) of the principal amount of the Term Loan, beginning with the fiscal quarter ended September 30, 2017, with the remaining balance scheduled to be paid on July 17, 2025. The CVC Credit Facilities permit CSC Holdings to request revolving loans, swing line loans or letters of credit from the revolving lenders, swingline lenders or issuing banks, as applicable, thereunder, from time to time prior to November 30, 2021, unless the commitments under the CVC Revolving Credit Facility have been previously terminated. Loans comprising each eurodollar borrowing or alternate base rate borrowing, as applicable, bear interest at a rate per annum equal to the adjusted LIBO rate or the alternate base rate, as applicable, plus the applicable margin, where the applicable margin is: • in respect of the CVC Term Loans, (i) with respect to any alternate base rate loan, 1.25% per annum and (ii) with respect to any eurodollar loan, 2.25% per annum, and • in respect of the CVC Revolving Credit Facility loans (i) with respect to any alternate base rate loan, 2.25% per annum and (ii) with respect to any eurodollar loan, 3.25% per annum. The CVC Credit Facilities Agreement requires the prepayment of outstanding CVC Term Loans, subject to certain exceptions and deductions, with (i) 100% of the net cash proceeds of certain asset sales, subject to reinvestment rights and certain other exceptions; and (ii) commencing with the fiscal year ending December 31, 2017, a pari ratable share (based on the outstanding principal amount of the Term Loans divided by the sum of the outstanding principal amount of all pari passu indebtedness and the Term Loans) of 50% of annual excess cash flow, which will be reduced to 0% if the consolidated net senior secured leverage ratio of CSC Holdings is less than or equal to 4.5 to 1. The obligations under the CVC Credit Facilities are guaranteed by each restricted subsidiary of CSC Holdings (other than CSC TKR, LLC and its subsidiaries and certain excluded subsidiaries) (the “Initial Guarantors”) and, subject to certain limitations, will be guaranteed by each future material wholly-owned restricted subsidiary of CSC Holdings. The obligations under the CVC Credit Facilities (including any guarantees thereof) are secured on a first priority basis, subject to any liens permitted by the Credit Facilities, by capital stock held by CSC Holdings or any guarantor in certain subsidiaries of CSC Holdings, subject to certain exclusions and limitations. The CVC Credit Facilities Agreement includes certain negative covenants which, among other things and subject to certain significant exceptions and qualifications, limit CSC Holdings' ability and the ability of its restricted subsidiaries to: (i) incur or guarantee additional indebtedness, (ii) make investments, (iii) create liens, (iv) sell assets and subsidiary stock, (v) pay dividends or make other distributions or repurchase or redeem our capital stock or subordinated debt, (vi) engage in certain transactions with affiliates, (vii) enter into agreements that restrict the payment of dividends by subsidiaries or the repayment of intercompany loans and advances; and (viii) engage in mergers or consolidations. In addition, the CVC Revolving Credit Facility includes a financial maintenance covenant solely for the benefit of the lenders under the CVC Revolving Credit Facility consisting of a maximum consolidated net senior secured leverage ratio of CSC Holdings and its restricted subsidiaries of 5.0 to 1.0. The financial covenant will be tested on the last day of any fiscal quarter, but only if on such day there are outstanding borrowings under the CVC Revolving Credit Facility (including swingline loans but excluding any cash collateralized letters of credit and undrawn letters of credit not to exceed $15,000 ). The CVC Credit Facilities Agreement also contains certain customary representations and warranties, affirmative covenants and events of default (including, among others, an event of default upon a change of control). If an event of default occurs, the lenders under the CVC Credit Facilities will be entitled to take various actions, including the acceleration of amounts due under the CVC Credit Facilities and all actions permitted to be taken by a secured creditor. CSC Holdings was in compliance with all of its financial covenants under the CVC Credit Facilities as of December 31, 2017 . Cequel Credit Facilities On June 12, 2015, Altice US Finance I Corporation, an indirect wholly-owned subsidiary of Cequel, entered into a senior secured credit facility which currently provides term loans in an aggregate principal amount of $1,265,000 ( $1,258,675 outstanding at December 31, 2017) (the “Cequel Term Loan Facility” and the term loans extended under the Cequel Term Loan Facility, the “Cequel Term Loans”) and revolving loan commitments in an aggregate principal amount of $350,000 (the “Cequel Revolving Credit Facility” and, together with the Cequel Term Loan Facility, the “Cequel Credit Facilities”) which are governed by a credit facilities agreement entered into by, inter alios, Altice US Finance I Corporation, certain lenders party thereto and JPMorgan Chase Bank, N.A. (as amended, restated, supplemented or otherwise modified on October 25, 2016, December 9, 2016 and March 15, 2017, and as further amended, restated, supplemented or modified from time to time, the “Cequel Credit Facilities Agreement”). The amendment to the Cequel Credit Facilities Agreement entered into on March 15, 2017 (“Cequel Extension Amendment”) increased the Term Loan by $450,000 to $1,265,000 and the maturity date for this facility was extended to July 28, 2025. The closing of the Extension Amendment occurred in April 2017 and the proceeds were used to refinance the entire $812,963 principal amount of loans under the Term Loan and redeem $450,000 of the 6.375% Senior Notes due September 15, 2020. In connection with the Cequel Extension Amendment and the redemption of the senior notes, the Company recorded a loss on extinguishment of debt and write-off of deferred financings costs aggregating $28,684 . Under the Cequel Extension Amendment, the Company is required to make scheduled quarterly payments equal to 0.25% (or $3,163 ) of the principal amount of the Cequel Term Loan, beginning with the fiscal quarter ended September 30, 2017, with the remaining balance scheduled to be paid on July 28, 2025. Loans comprising each eurodollar borrowing or alternate base rate borrowing, as applicable, bear interest at a rate per annum equal to the adjusted LIBO rate or the alternate base rate, as applicable, plus the applicable margin, where the applicable margin is: • in respect of the Cequel Term Loans, (i) with respect to any alternate base rate loan, 1.25% per annum and (ii) with respect to any eurodollar loan, 2.25% per annum, and • in respect of Cequel Revolving Credit Facility loans (i) with respect to any alternate base rate loan, 2.25% per annum and (ii) with respect to any eurodollar loan, 3.25% per annum. The Cequel Credit Facilities Agreement requires the prepayment of outstanding Term Loans, subject to certain exceptions and deductions, with (i) 100% of the net cash proceeds of certain asset sales, subject to reinvestment rights and certain other exceptions; and (ii) a pari ratable share (based on the outstanding principal amount of the Cequel Term Loans divided by the sum of the outstanding principal amount of all pari passu indebtedness and the Cequel Term Loans) of 50% of annual excess cash flow, which will be reduced to 0% if the consolidated net senior secured leverage ratio is less than or equal to 4.5 :1. The debt under the Cequel Credit Facility is secured by a first priority security interest in the capital stock of Cequel Communications, LLC and substantially all of the present and future assets of Cequel Communications, LLC and its restricted subsidiaries, and is guaranteed by Cequel Communications Holdings II, LLC, an indirect subsidiary of Cequel (the "Parent Guarantor"), as well as all of Cequel Communications, LLC's existing and future direct and indirect subsidiaries, subject to certain exceptions set forth in the Cequel Credit Facilities Agreement. The Cequel Credit Facilities Agreement contains customary representations, warranties and affirmative covenants. In addition, the Cequel Credit Facilities Agreement contains restrictive covenants that limit, among other things, the ability of Cequel Communications, LLC and its subsidiaries to incur indebtedness, create liens, engage in mergers, consolidations and other fundamental changes, make investments or loans, engage in transactions with affiliates, pay dividends, and make acquisitions and dispose of assets. The Cequel Credit Facilities Agreement also contains a maximum senior secured leverage maintenance covenant of 5.0 to 1.0. Additionally, the Cequel Credit Facilities Agreement contains customary events of default, including failure to make payments, breaches of covenants and representations, cross defaults to other indebtedness, unpaid judgments, changes of control and bankruptcy events. The lenders’ commitments to fund amounts under the revolving credit facility are subject to certain customary conditions. As of December 31, 2017 , Cequel was in compliance with all of its financial covenants under the Cequel Credit Facilities Agreement. The following table provides details of the Company's outstanding credit facility debt: Carrying Amount (a) Maturity Date Interest Rate Principal December 31, 2017 December 31, 2016 CSC Holdings Restricted Group: Revolving Credit Facility (b) $20,000 on October 9, 2020, remaining balance on November 30, 2021 4.75% $ 450,000 $ 425,488 $ 145,013 Term Loan Facility July 17, 2025 3.74% 2,985,000 2,967,818 2,486,874 Cequel: Revolving Credit Facility (c) November 30, 2021 — — — — Term Loan Facility July 28, 2025 3.82% 1,258,675 1,250,217 812,903 $ 4,693,675 4,643,523 3,444,790 Less: Current portion 42,650 33,150 Long-term debt $ 4,600,873 $ 3,411,640 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts. (b) At December 31, 2017 , $115,973 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $1,734,027 of the facility was undrawn and available, subject to covenant limitations. (c) At December 31, 2017 , $13,500 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $336,500 of the facility was undrawn and available, subject to covenant limitations. Senior Guaranteed Notes, Senior Secured Notes, and Senior Notes and Debentures The following table summarizes the Company's senior guaranteed notes, senior secured notes and senior notes and debentures: Interest Rate Principal Amount Carrying Amount (a) Issuer Date Issued Maturity Date December 31, 2017 December 31, 2016 Senior notes: CSC Holdings (b)(f)(n) February 6, 1998 February 15, 2018 7.875 % $ 300,000 $ 301,184 $ 310,334 CSC Holdings (b)(f) July 21, 1998 July 15, 2018 7.625 % 500,000 507,744 521,654 CSC Holdings (c)(f) February 12, 2009 February 15, 2019 8.625 % 526,000 541,165 553,804 CSC Holdings (c)(f) November 15, 2011 November 15, 2021 6.750 % 1,000,000 960,146 951,702 CSC Holdings (c)(f) May 23, 2014 June 1, 2024 5.250 % 750,000 660,601 650,193 CSC Holdings (e) October 9, 2015 January 15, 2023 10.125 % 1,800,000 1,777,914 1,774,750 CSC Holdings (e)(l) October 9, 2015 October 15, 2025 10.875 % 1,684,221 1,661,135 1,970,379 Senior guaranteed notes: CSC Holdings (e) October 9, 2015 October 15, 2025 6.625 % 1,000,000 986,717 985,469 CSC Holdings (g) September 23, 2016 April 15, 2027 5.500 % 1,310,000 1,304,468 1,304,025 Senior notes: Cablevision (k)(o) September 23, 2009 September 15, 2017 8.625 % — — 926,045 Cablevision (c)(f)(n)(o) April 15, 2010 April 15, 2018 7.750 % 750,000 754,035 767,545 Cablevision (c)(f)(o) April 15, 2010 April 15, 2020 8.000 % 500,000 492,009 488,992 Cablevision (c)(f)(o) September 27, 2012 September 15, 2022 5.875 % 649,024 572,071 559,500 Senior notes: Cequel Communications Holdings I and Cequel Capital (d)(m)(p) Oct. 25, 2012 Dec. 28, 2012 September 15, 2020 6.375 % 1,050,000 1,027,493 1,457,439 Cequel Communications Holdings I and Cequel Capital (d)(p) May 16, 2013 Sept. 9, 2014 December 15, 2021 5.125 % 1,250,000 1,138,870 1,115,767 Cequel Communications Holdings I and Cequel Capital (i)(p) June 12, 2015 July 15, 2025 7.750 % 620,000 604,374 602,925 Senior secured notes: Altice US Finance I Corporation (h)(p) June 12, 2015 July 15, 2023 5.375 % 1,100,000 1,082,482 1,079,869 Altice US Finance I Corporation (j)(p) April 26, 2016 May 15, 2026 5.500 % 1,500,000 1,488,024 1,486,933 $ 16,289,245 15,860,432 17,507,325 Less: Current portion 507,744 926,045 Long-term debt $ 15,352,688 $ 16,581,280 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums. (b) The debentures are not redeemable by CSC Holdings prior to maturity. (c) Notes are redeemable at any time at a specified "make-whole" price plus accrued and unpaid interest to the redemption date. (d) The Company may redeem some or more of all the notes at the redemption price set forth in the relevant indenture, plus accrued and unpaid interest. (e) The Company may redeem some or all of the 2023 Notes at any time on or after January 15, 2019, and some or all of the 2025 Notes and 2025 Guaranteed Notes at any time on or after October 15, 2020, at the redemption prices set forth in the relevant indenture, plus accrued and unpaid interest, if any. The Company may also redeem up to 40% of each series of the Cablevision Acquisition Notes using the proceeds of certain equity offerings before October 15, 2018, at a redemption price equal to 110.125% for the 2023 Notes, 110.875% for the 2025 Notes and 106.625% for the 2025 Guaranteed Notes, in each case plus accrued and unpaid interest. In addition, at any time prior to January 15, 2019, CSC Holdings may redeem some or all of the 2023 Notes, and at any time prior to October 15, 2020, the Company may redeem some or all of the 2025 Notes and the 2025 Guaranteed Notes, at a price equal to 100% of the principal amount thereof, plus a “make whole” premium specified in the relevant indenture plus accrued and unpaid interest. (f) The carrying value of the notes was adjusted to reflect their fair value on the Cablevision Acquisition Date (aggregate reduction of $52,788 ). (g) The 2027 Guaranteed Notes are redeemable at any time on or after April 15, 2022 at the redemption prices set forth in the indenture, plus accrued and unpaid interest, if any. In addition, up to 40% may be redeemed for each series of the 2027 Guaranteed Notes using the proceeds of certain equity offerings before October 15, 2019, at a redemption price equal to 105.500% , plus accrued and unpaid interest. (h) Some or all of these notes may be redeemed at any time on or after July 15, 2018, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before July 15, 2018, at a redemption price equal to 105.375% . (i) Some or all of these notes may be redeemed at any time on or after July 15, 2020, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before July 15, 2018, at a redemption price equal to 107.750% . (j) Some or all of these notes may be redeemed at any time on or after May 15, 2021, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before May 15, 2019, at a redemption price equal to 105.500% . (k) In April 2017, the Company redeemed $500,000 of the senior notes from proceeds from the CVC Term Loan facility. In September 2017, these senior notes matured and the Company repaid the remaining principal balance of $400,000 . (l) In July 2017, the Company used approximately $350,120 of the proceeds from the IPO to fund the redemption of $315,779 principal amount of CSC Holdings senior notes due October 2025 and the related call premium of approximately $34,341 which was recorded as a loss on extinguishment of debt. The Company also recorded a write-off of deferred financings costs in connection with this redemption aggregating $4,516 . (m) In April 2017, the Company redeemed $450,000 of the senior notes from proceeds from the Cequel Term Loan facility. (n) As a result of the repayment of these notes in February 2018, discussed in Note 20, the carrying amount of these Notes has been classified as long-term indebtedness. (o) The issuers of these notes have no ability to service interest or principal on the notes, other than through any dividends or distributions received from CSC Holdings. CSC Holdings is restricted, in certain circumstances, from paying dividends or distributions to the issuers by the terms of the CVC Credit Facilities Agreement. (p) The issuers of these notes have no ability to service interest or principal on the notes, other than through any contributions/distributions from Cequel Communications, LLC (an indirect subsidiary of Cequel and the parent of Altice US Finance I). Cequel Communications, LLC is restricted in certain circumstances, from paying dividends or distributions to the issuers by the terms of the Cequel Credit Facilities Agreement. The indentures under which the senior notes and debentures were issued contain various covenants. The Company was in compliance with all of its financial covenants under these indentures as of December 31, 2017 . CSC Holdings 5.5% Senior Guaranteed Notes due 2027 In September 2016, CSC Holdings issued $1,310,000 aggregate principal amount of 5.50% senior guaranteed notes due April 15, 2027. The 2027 Guaranteed Notes are senior unsecured obligations and rank pari passu in right of payment with all of the existing and future senior indebtedness, including the existing senior notes and the Credit Facilities and rank senior in right of payment to all of existing and future subordinated indebtedness. As discussed above , in October 2016, CSC Holdings used the proceeds from the issuance of the 2027 Guaranteed Notes (after the deduction of fees and expenses) to prepay the outstanding loans under the CVC Term Credit Facility that were not extended pursuant to the extension amendment on September 9,2016. In connection with the issuance of the 2027 Guaranteed Notes, the Company incurred deferred financing costs of approximately $5,575 , which are being amortized to interest expense over the term of the 2027 Guaranteed Notes. Cablevision Acquisition Notes The $1,000,000 principal amount of the 2025 Guaranteed Notes bear interest at a rate of 6.625% per annum and were issued at a price of 100.00% . Interest on the 2025 Guaranteed Notes is payable semi-annually on January 15 and July 15, commencing on July 15, 2016. These 2025 Guaranteed Notes are guaranteed on a senior basis by the Initial Guarantors. The $1,800,000 principal amount of the 2023 Notes and $2,000,000 principal amount of the 2025 Notes, bear interest at a rate of 10.125% and 10.875% , respectively, per annum and were issued at prices of 100.00% . Interest on the 2023 Notes and 2025 Notes is payable semi-annually on January 15 and July 15, which began on July 15, 2016. Deferred financing costs of approximately $76,579 incurred in connection with the issuance of the Cablevision Acquisition Notes are being amortized to interest expense over the term of the Cablevision Acquisition Notes. The indentures under which the Cablevision and CSC Holdings Senior Guaranteed Notes and Senior Notes and Debentures were issued contain certain covenants and agreements with respect to investment grade debt securities, including limitations on the ability of CSC Holdings and its restricted subsidiaries to (i) incur or guarantee additional indebtedness, (ii) make investments or other restricted payments, (iii) create liens, (iv) sell assets and subsidiary stock, (v) pay dividends or make other distributions or repurchase or redeem our capital stock or subordinated debt, (vi) engage in certain transactions with affiliates, (vii) enter into agreements that restrict the payment of dividends by subsidiaries or the repayment of intercompany loans and advances, and (viii) engage in mergers or consolidations, in each case subject to certain exceptions. The indentures also contain certain customary events of default. If an event of default occurs, the obligations under the Cablevision Acquisition Notes may be accelerated. As of December 31, 2017, Cablevision and CSC Holdings were in compliance with all of its financial covenants under the indentures under which the senior notes and debentures and senior guaranteed notes were issued. Cequel Senior Secured Notes On June 12, 2015, Altice US Finance I Corporation, an indirect subsidiary of Altice N.V., issued $1,100,000 principal amount of senior secured notes (the ‘‘Cequel 2023 Senior Secured Notes’’), the proceeds from which were placed in escrow to finance a portion of the purchase price for the Cequel Acquisition. The Cequel 2023 Senior Secured Notes bear interest at a rate of 5.375% per annum and were issued at a price of 100.00% . Interest on the Cequel 2023 Senior Secured Notes is payable semi-annually on January 15 and July 15 of each year. Following the consummation of the Cequel Acquisition and related transactions the equity interests in Altice US Finance I Corporation were contributed through one or more intermediary steps to Suddenlink, and the Senior Secured Notes were guaranteed by Cequel Communications Holdings II LLC, Suddenlink and certain of the subsidiaries of Suddenlink and are secured by certain assets of Cequel Communications Holdings II LLC, Suddenlink and its subsidiaries. On April 26, 2016, Altice US Finance I Corporation issued $1,500,000 aggregate principal amount of senior secured notes (the ‘‘Cequel 2026 Senior Secured Notes’’). The proceeds from the sale were used to repay the $1,477,200 remaining balance under the previous credit facility and to pay related fees and expenses. The Cequel 2026 Senior Secured Notes mature on May 15, 2026 and bear interest at a rate of 5.50% annually. Interest on the Cequel 2026 Senior Secured Notes is payable semi-annually on May 15 and November 15 of each year, commencing on November 15, 2016. Deferred financing costs recorded in connection with the issuance of these notes amounted to $13,773 and are being amortized over the term of the notes. Cequel Senior Notes On June 12, 2015, Altice US Finance II Corporation, an indirect subsidiary of Altice N.V., issued $300,000 principal amount of the Cequel 2025 Senior Notes, the proceeds from which were placed in escrow, to finance a portion of the purchase price for the Cequel Acquisition. The Cequel 2025 Senior Notes were issued by the Cequel 2025 Senior Notes Issuer, an indirect subsidiary of Altice N.V., bear interest at a rate of 7.75% per annum and were issued at a price of 100.00% . Interest on the Cequel 2025 Senior Notes is payable semi-annually on January 15 and July 15 of each year. Following the consummation of the Cequel Acquisition and related transactions, the Cequel 2025 Senior Notes Issuer merged into Cequel, the Cequel 2025 Senior Notes became the obligations of Cequel and Cequel Capital Corporation became the co-issuer of the Cequel 2025 Senior Notes. On June 12, 2015, Altice US Finance S.A., an indirect subsidiary of Altice N.V. issued $320,000 principal amount of the 7.75% Senior Notes due 2025 (the ‘‘Holdco Notes’’), the proceeds from which were placed in escrow, to finance a portion of the purchase price for the Cequel Acquisition. The Holdco Notes bear interest at a rate of 7.75% per annum and were issued at a price of 98.275% . Interest on the Holdco Notes is payable semi-annually on January 15 and July 15 of each year. The Holdco Notes were automatically exchanged into an equal aggregate principal amount of Cequel 2025 Senior Notes at Cequel during the second quarter of 2016. The Cequel Indentures contain certain covenants, agreements and events of default which are customary with respect to non-investment grade debt securities, including limitations on the Company’s ability to incur additional indebtedness, pay dividends on or make other distributions or repurchase the Company’s capital stock, make certain investments, enter into certain types of transactions with affiliates, create liens and sell certain assets or merge with or into other companies. Notes Payable to Affiliates and Related Parties On June 21, 2016, in connection with the Cablevision Acquisition, the Company issued notes payable to affiliates and related parties aggregating $1,750,000 , of which $875,000 bore interest at 10.75% and matured on December 20, 2023 and $875,000 bore interest at 11% and matured on December 20, 2024. As discussed in Note 1, in connection with the Company's IPO, the Company converted the notes payable to affiliates and related parties (together with accrued and unpaid interest of $529 and applicable premium of $513,723 ) into shares of the Company’s common stock at the IPO price. The premium was recorded as a loss on extinguishment of debt on the Company's statement of operations for the year ended December 31, 2017. In connection with the conversion of the notes, the Company recorded a credit to paid in capital of $2,264,252 . For the year ended December 31, 2017 and 2016, the Company recognized interest expense of $90,405 and $102,557 related to these notes prior to their conversion. Summary of Debt Maturities The future maturities of debt payable by the Company under its various debt obligations outstanding as of December 31, 2017 , including notes payable, collateralized indebtedness (see Note 10), and capital leases, are as follows: Years Ending December 31, Cablevision Cequel Total 2018 $ 1,619,094 $ 16,518 $ 1,635,612 2019 565,604 18,310 583,914 2020 552,902 1,062,713 1,615,615 2021 2,921,269 1,262,723 4,183,992 2022 680,700 12,734 693,434 Thereafter 9,380,513 4,416,270 13,796,783 The amounts in the table above do not include the effects of the debt transactions discussed in Note 20.
Cablevision Systems Corporation And Subsidiaries
Debt Instrument [Line Items]
DEBT	DEBT Restricted Group Credit Facility Prior to the Merger, CSC Holdings and certain of its subsidiaries (the "Restricted Subsidiaries") had a credit agreement (the "Previous Credit Facility") that provided for (1) a revolving credit facility of $1,500,000 , (2) a Term A facility of $958,510 , and (3) a Term B facility of $1,200,000 . Loans under the Previous Credit Facility bore interest as follows: • Revolving credit loans and Term A loans, either (i) the Eurodollar rate (as defined) plus a spread ranging from 1.50% to 2.25% based on the cash flow ratio (as defined), or (ii) the base rate (as defined) plus a spread ranging from 0.50% to 1.25% based on the cash flow ratio; • Term B loans, either (i) the Eurodollar rate plus a spread of 2.50% or (ii) the base rate plus a spread of 1.50% . There was a commitment fee of 0.30% on undrawn amounts under the revolving credit facility in connection with the Previous Credit Facility. Repayment of Restricted Group Credit Facility Debt In April 2015, CSC Holdings made a repayment of $200,000 on its outstanding Term B loan facility with cash on hand. In connection with the repayment, the Company recognized a loss on extinguishment of debt of $731 and wrote-off unamortized deferred financing costs related to this loan facility of $1,004 for the year ended December 31, 2015. On June 21, 2016, in connection with the Merger, the Previous Credit Facility was repaid. Newsday LLC Credit Facility Newsday LLC ("Newsday") had a senior secured credit agreement (the "Newsday Credit Agreement"), which consisted of a $480,000 floating rate term loan. Interest under the Newsday Credit Agreement was calculated, at the election of Newsday, at either the Eurodollar rate or the base rate, plus 3.50% or 2.50% , respectively, as specified in the Newsday Credit Agreement. Borrowings under the Newsday Credit Agreement were guaranteed by CSC Holdings on a senior unsecured basis and certain of its subsidiaries that own interests in Newsday on a senior secured basis. The Newsday Credit Agreement was secured by a lien on the assets of Newsday and Cablevision senior notes with an aggregate principal amount of $611,455 owned by Newsday Holdings. On June 21, 2016, in connection with the Merger, Newsday LLC repaid its outstanding indebtedness under the Newsday Credit Agreement. The following table provides details of the Company's outstanding credit facility debt (net of unamortized financing costs and unamortized discounts): Maturity Interest Rate Principal December 31, 2015 (a) Restricted Group: Term A loan facility (b) April 17, 2018 2.17% $ 886,621 $ 885,105 Term B loan facility (b) April 17, 2020 2.92% 1,159,031 1,150,227 Restricted Group Credit Facilities debt $ 2,035,332 (a) The unamortized discounts and deferred financing costs amounted to $11,200 at December 31, 2015. (b) In connection with the Merger, the Company repaid the then outstanding Term A and Term B loan facilities (see discussion above). Senior Notes and Debentures The following table summarizes the Company's senior notes and debentures as of December 31, 2015: Interest Principal Carrying Issuer Date Issued Maturity Date Rate Amount Amount (c) CSC Holdings (a) February 6, 1998 February 15, 2018 7.875 % $ 300,000 $ 299,091 CSC Holdings (a) July 21, 1998 July 15, 2018 7.625 % 500,000 498,942 CSC Holdings (b) February 12, 2009 February 15, 2019 8.625 % 526,000 511,079 CSC Holdings (b) November 15, 2011 November 15, 2021 6.750 % 1,000,000 985,640 CSC Holdings (b) May 23, 2014 June 1, 2024 5.250 % 750,000 737,500 Cablevision (b) September 23, 2009 September 15, 2017 8.625 % 900,000 891,238 Cablevision (b) April 15, 2010 April 15, 2018 7.750 % 750,000 744,402 Cablevision (b) April 15, 2010 April 15, 2020 8.000 % 500,000 494,410 Cablevision (b) September 27, 2012 September 15, 2022 5.875 % 649,024 638,709 Total $ 5,801,011 (a) The debentures are not redeemable by the Company prior to maturity. (b) The Company may redeem some or all of the notes at any time at a specified "make-whole" price plus accrued and unpaid interest to the redemption date. (c) The carrying amount of the notes is net of the unamortized deferred financing costs and/or discounts/premiums. The table above excludes (i) the principal amount of Cablevision 7.75% senior notes due 2018 of $345,238 and the principal amount of Cablevision 8.00% senior notes due 2020 of $266,217 held by Newsday at December 31, 2015 which are eliminated in the consolidated balance sheets of Cablevision. Debt Transaction Subsequent to Merger In connection with the Merger, in October 2015, Finco borrowed an aggregate principal amount of $3,800,000 under the Term Credit Facility and entered into revolving loan commitments in an aggregate principal amount of $2,000,000 . The Term Credit Facility was to mature on October 9, 2022 and the Revolving Credit Facility was to mature on October 9, 2020 (see discussion below regarding the extension amendments). In addition, on June 21, 2016 and July 21, 2016, the Company entered into incremental loan assumption agreements whereby the Revolving Credit Facility was increased by $70,000 and $35,000 , respectively, to $2,105,000 . Finco also issued $1,800,000 aggregate principal amount of the 2023 Notes, $2,000,000 aggregate principal amount of the 2025 Notes, and $1,000,000 aggregate principal amount of the 2025 Guaranteed Notes. On June 21, 2016, immediately following the Merger, Finco merged with and into CSC Holdings, with CSC Holdings surviving the merger (the "CSC Holdings Merger"), and the Merger Notes and the Credit Facilities became obligations of CSC Holdings. The 2025 Guaranteed Notes are guaranteed on a senior basis by each restricted subsidiary of CSC Holdings (other than CSC TKR, LLC and its subsidiaries, which own and operate the New Jersey cable television systems, Cablevision Lightpath, Inc. and any subsidiaries of CSC Holdings that are "Excluded Subsidiaries" under the indenture governing the 2025 Guaranteed Notes) (such subsidiaries, the "Initial Guarantors") and the obligations under the Credit Facilities are (i) guaranteed on a senior basis by each Initial Guarantor and (ii) secured on a first priority basis by capital stock held by CSC Holdings and the guarantors in certain subsidiaries of CSC Holdings, subject to certain exclusions and limitations. Altice used the proceeds from the Term Credit Facility and the Merger Notes, together with an equity contribution from Altice and its Co-Investors and existing cash at Cablevision, to (a) finance the Merger, (b) refinance the credit agreement, dated as of April 17, 2013 (the "Previous Credit Facility"), among CSC Holdings, certain subsidiaries of CSC Holdings and the lenders party thereto ( $2,030,699 outstanding at Merger Date), (c) repay the senior secured credit agreement, dated as of October 12, 2012, among Newsday LLC, CSC Holdings, and the lenders party thereto (the "Previous Newsday Credit Facility") of $480,000 at Merger Debt, and (d) pay related fees and expenses. The Credit Facilities permit CSC Holdings to request revolving loans, swing line loans or letters of credit from the revolving lenders, swingline lenders or issuing banks, as applicable, thereunder, from time to time prior to October 9, 2020, unless the commitments under the Revolving Credit Facility have been previously terminated. Loans comprising each Eurodollar Borrowing or ABR Borrowing, as applicable, bear interest at a rate per annum equal to the Adjusted LIBO Rate or the Alternate Base Rate, as applicable, plus the Applicable Margin, where the Applicable Margin means: in respect of revolving credit loans with respect to any Eurodollar Loan, 3.25% per annum and (ii) with respect to any ABR Loan, 2.25% per annum. On September 9, 2016, CSC Holdings entered into an amendment (the "Extension Amendment") to the Credit Facilities and the incremental loan assumption agreements dated June 21, 2016 and July 21, 2016 between CSC Holdings and certain lenders party thereto (the "Extending Lenders") pursuant to which each Extending Lender agreed to extend the maturity of its Term Credit Facility under the Credit Facilities to October 11, 2024 and to certain other amendments to the Credit Facilities. In October 2016, CSC Holdings used the net proceeds from the sale of $1,310,000 aggregate principal amount of 5.5% senior guaranteed notes due 2027 (the "2027 Guaranteed Notes") (after the deduction of fees and expenses) to prepay outstanding loans under the Term Credit Facility that were not extended pursuant to the Extension Amendment. The total aggregate principal amount of the Term Credit Facility, after giving effect to the use of proceeds of the 2027 Guaranteed Notes, is $2,500,000 (the "Extended Term Loan"). The Extended Term Loan was effective on October 11, 2016. In connection with the prepayment of the Term Credit Facility, the Company wrote-off the deferred financing costs and the unamortized discount related to the existing term loan aggregating $102,894 . Additionally, the Company recorded deferred financing costs and an original issue discount of $7,249 and $6,250 , respectively, which are both being amortized to interest expense over the term of the Extended Term Loan. On December 9, 2016, the Credit Facilities were amended to increase the availability under the Revolving Credit Facility from $2,105,000 to $2,300,000 and extend the maturity on $2,280,000 of this facility to November 30, 2021. The remaining $20,000 will mature on October 9, 2020. The Credit Facilities require CSC Holdings to prepay outstanding term loans, subject to certain exceptions and deductions, with (i) 100% of the net cash proceeds of certain asset sales, subject to reinvestment rights and certain other exceptions, and (ii) commencing with the first full fiscal year after the consummation of the Merger, a ratable share (based on the outstanding principal amount of the Extended Term Loan divided by the sum of the outstanding principal amount of all pari passu indebtedness and the Extended Term Loan) of 50% of the annual excess cash flow of CSC Holdings and its restricted subsidiaries, which will be reduced to 0% if the Consolidated Net Senior Secured Leverage Ratio of CSC Holdings is less than or equal to 4.5 to 1. Under the Term Credit Facility, CSC Holdings was required to make and made scheduled quarterly payment of $9,500 beginning with the fiscal quarter ending September 30, 2016. Under the Extended Term Loan, CSC Holdings is required to make scheduled quarterly payments equal to 0.25% of the principal amount of the Extended Term Loan, with the remaining balance scheduled to be paid on October 11, 2024, beginning with the fiscal quarter ending March 31, 2017. Interest will be calculated under the Extended Term Loan subject to a "floor" applicable to the Adjusted LIBO Rate of 0.75% per annum, and the Applicable Margin is (1) with respect to any ABR Loan, 2.00% per annum and (2) with respect to any Eurodollar Loan, 3.00% per annum. If the Adjusted LIBO Rate for the Extended Term Loan is less than 0.75% for any given period, the interest rate is fixed at 3.75% per annum. The Credit Facilities include negative covenants that are substantially similar to the negative covenants contained in the indentures under which the Merger Notes were issued (see discussion below). The Credit Facilities include one financial maintenance covenant (solely for the benefit of the Revolving Credit Facility), consisting of a maximum Consolidated Net Senior Secured Leverage Ratio of 5.0 to 1, which will be tested on the last day of any fiscal quarter but only if on such day there are outstanding borrowings under the Revolving Credit Facility (including swingline loans but excluding any cash collateralized letters of credit and undrawn letters of credit not to exceed $15,000 ). The Credit Facilities also contain certain customary representations and warranties, affirmative covenants and events of default (including, among others, an event of default upon a change of control). If an event of default occurs, the obligations under the Credit Facilities may be accelerated. Total amounts payable by the Company under its various debt obligations outstanding, including the debt transaction subsequent to the merger discussed above and including notes payable, collateralized indebtedness, and capital leases, during the periods shown below, are as follows: Years Ending December 31, 2017 $ 1,719,180 2018 2,103,441 2019 557,348 2020 526,340 2021 1,200,256 Thereafter 9,884,024

CVC - DERIVATIVE CONTRACTS AND

CVC - DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS	12 Months Ended
	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS	DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS Prepaid Forward Contracts The Company has entered into various transactions to limit the exposure against equity price risk on its shares of Comcast Corporation ("Comcast") common stock. The Company has monetized all of its stock holdings in Comcast through the execution of prepaid forward contracts, collateralized by an equivalent amount of the respective underlying stock. At maturity, the contracts provide for the option to deliver cash or shares of Comcast stock with a value determined by reference to the applicable stock price at maturity. These contracts, at maturity, are expected to offset declines in the fair value of these securities below the hedge price per share while allowing the Company to retain upside appreciation from the hedge price per share to the relevant cap price. The Company received cash proceeds upon execution of the prepaid forward contracts discussed above which has been reflected as collateralized indebtedness in the accompanying consolidated balance sheets. In addition, the Company separately accounts for the equity derivative component of the prepaid forward contracts. These equity derivatives have not been designated as hedges for accounting purposes. Therefore, the net fair values of the equity derivatives have been reflected in the accompanying consolidated balance sheets as an asset or liability and the net increases or decreases in the fair value of the equity derivative component of the prepaid forward contracts are included in gain (loss) on derivative contracts in the accompanying consolidated statements of operations. All of the Company's monetization transactions are obligations of its wholly-owned subsidiaries that are not part of CSC Holdings' Restricted Group; however, CSC Holdings has provided guarantees of the subsidiaries' ongoing contract payment expense obligations and potential payments that could be due as a result of an early termination event (as defined in the agreements). If any one of these contracts were terminated prior to its scheduled maturity date, the Company would be obligated to repay the fair value of the collateralized indebtedness less the sum of the fair values of the underlying stock and equity collar, calculated at the termination date. As of December 31, 2017 , the Company did not have an early termination shortfall relating to any of these contracts. The Company monitors the financial institutions that are counterparties to its equity derivative contracts. All of the counterparties to such transactions carry investment grade credit ratings as of December 31, 2017 . Put/Call Options In the third quarter of 2017, the Company entered into a put-call contract that expired in the third quarter of 2018 whereby the Company sold a put option and purchased a call option with the same strike price. These put-call options were settled as of December 31, 2017 and the Company recorded a loss of $97,410 for the year ended December 31, 2017, which represents the difference between the strike price and the closing price of the underlying shares. Interest Rate Swap Contracts In June 2016, the Company entered into two fixed to floating interest rate swap contracts. One fixed to floating interest rate swap is converting $750,000 from a fixed rate of 1.6655% to six-month LIBO rate and a second tranche of $750,000 from a fixed rate of 1.68% to six-month LIBO rate. The objective of these swaps is to cover the exposure of the Cequel 2026 Senior Secured Notes issued by Cequel to changes in the market interest rate. These swap contracts were not designated as hedges for accounting purposes. Accordingly, the changes in the fair value of these interest rate swap contracts are recorded through the statements of operations. The Company does not hold or issue derivative instruments for trading or speculative purposes. The following represents the location of the assets and liabilities associated with the Company's derivative instruments within the consolidated balance sheets: Asset Derivatives Liability Derivatives Derivatives Not Designated as Hedging Instruments Balance Sheet Location Fair Value at December 31, 2017 Fair Value at December 31, 2016 Fair Value at December 31, 2017 Fair Value at December 31, 2016 Prepaid forward contracts Derivative contracts, current $ 52,545 $ 352 $ (52,545 ) $ (13,158 ) Prepaid forward contracts Derivative contracts, long-term — 10,604 (109,504 ) — Interest rate swap contracts Liabilities under derivative contracts, long-term — — (77,902 ) (78,823 ) $ 52,545 $ 10,956 $ (239,951 ) $ (91,981 ) Loss related to the Company's derivative contracts related to the Comcast common stock for the years ended December 31, 2017 and 2016 of $(138,920) and $(53,696) , respectively, are reflected in gain (loss) on derivative contracts, net in the Company's consolidated statements of operations. For the years ended December 31, 2017 and 2016, the Company recorded a gain on investments of $237,354 and $141,896 , respectively, primarily representing the net increase in the fair values of the investment securities pledged as collateral. For the years ended December 31, 2017 and 2016, the Company recorded a gain (loss) on interest rate swap contracts of $5,482 and $(72,961) , respectively. Settlements of Collateralized Indebtedness The following table summarizes the settlement of the Company's collateralized indebtedness relating to Comcast shares that were settled by delivering cash equal to the collateralized loan value, net of the value of the related equity derivative contracts during the year ended December 31, 2017 : Number of shares (a) 26,815,368 Collateralized indebtedness settled $ (774,703 ) Derivatives contracts settled (56,356 ) (831,059 ) Proceeds from new monetization contracts 838,794 Net cash proceeds $ 7,735 (a) Share amounts are adjusted for the 2 for 1 stock split in February 2017. The cash to settle the collateralized indebtedness was obtained from the proceeds of new monetization contracts covering an equivalent number of Comcast shares. The terms of the new contracts allow the Company to retain upside participation in Comcast shares up to each respective contract's upside appreciation limit with downside exposure limited to the respective hedge price. In April 2017, the Company entered into new monetization contracts related to 32,153,118 shares of Comcast common stock held by Cablevision, which synthetically reversed the existing contracts related to these shares (the "Synthetic Monetization Closeout"). As the existing collateralized debt matures, the Company will settle the contracts with proceeds received from the new monetization contracts. The new monetization contracts mature on April 28, 2021. The new monetization contracts provide the Company with downside protection below the hedge price of $35.47 and upside benefit of stock price appreciation up to $44.72 per share. In connection with the execution of these contracts, the Company recorded (i) the fair value of the equity derivative contracts of $53,316 (in a net asset position), (ii) notes payable of $111,657 , representing the fair value of the existing equity derivative contracts, in a liability position, and (iii) a discount on notes payable of $58,341 .
Cablevision Systems Corporation And Subsidiaries
Derivatives, Fair Value [Line Items]
DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS	DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS The Company has entered into various transactions to limit the exposure against equity price risk on its shares of Comcast Corporation ("Comcast") common stock. The Company has monetized all of its stock holdings in Comcast through the execution of prepaid forward contracts, collateralized by an equivalent amount of the respective underlying stock. At maturity, the contracts provide for the option to deliver cash or shares of Comcast stock with a value determined by reference to the applicable stock price at maturity. These contracts, at maturity, are expected to offset declines in the fair value of these securities below the hedge price per share while allowing the Company to retain upside appreciation from the hedge price per share to the relevant cap price. The Company received cash proceeds upon execution of the prepaid forward contracts discussed above which has been reflected as collateralized indebtedness in the accompanying consolidated balance sheets. In addition, the Company separately accounts for the equity derivative component of the prepaid forward contracts. These equity derivatives have not been designated as hedges for accounting purposes. Therefore, the net fair values of the equity derivatives have been reflected in the accompanying consolidated balance sheets as an asset or liability and the net increases or decreases in the fair value of the equity derivative component of the prepaid forward contracts are included in gain (loss) on derivative contracts in the accompanying consolidated statements of operations. All of the Company's monetization transactions are obligations of its wholly-owned subsidiaries that are not part of the Restricted Group; however, CSC Holdings has provided guarantees of the subsidiaries' ongoing contract payment expense obligations and potential payments that could be due as a result of an early termination event (as defined in the agreements). If any one of these contracts were terminated prior to its scheduled maturity date, the Company would be obligated to repay the fair value of the collateralized indebtedness less the sum of the fair values of the underlying stock and equity collar, calculated at the termination date. The Company monitors the financial institutions that are counterparties to its equity derivative contracts and it diversifies its equity derivative contracts among various counterparties to mitigate exposure to any single financial institution. The following represents the location of the assets and liabilities associated with the Company's derivative instruments within the consolidated balance sheets: Derivatives Not Designated as Hedging Instruments Balance Sheet Location Asset Derivatives Liability Derivatives Fair Value at December 31, 2015 Prepaid forward contracts Current derivative contracts $ 10,333 $ 2,706 Prepaid forward contracts Long-term derivative contracts 72,075 — $ 82,408 $ 2,706 Unrealized and realized gains (losses) related to Company's equity derivative contracts related to the Comcast common stock for the period January 1, 2016 through June 20, 2016 and the year ended December 31, 2015 of $(36,283) and $104,927 , respectively, are reflected in gain (loss) on equity derivative contracts, net in the Company's consolidated statements of operations. For the period January 1, 2016 through June 20, 2016 and the year ended December 31, 2015 and , the Company recorded a gain (loss) on investments of $129,510 and $(33,935) , respectively, representing the net increase (decrease) in the fair values of all investment securities pledged as collateral. Settlements of Collateralized Indebtedness The following table summarizes the settlement of the Company's collateralized indebtedness relating to Comcast shares that were settled by delivering cash equal to the collateralized loan value, net of the value of the related equity derivative contracts. January 1 to June 20, 2016 Year Ended December 31, 2015 Number of shares (a) 10,802,118 26,815,368 Collateralized indebtedness settled $ (273,519 ) $ (569,562 ) Derivative contracts settled (8,075 ) (69,675 ) (281,594 ) (639,237 ) Proceeds from new monetization contracts 337,149 774,703 Net cash receipt $ 55,555 $ 135,466 ______________________ (a) Share amounts adjusted for the 2 for 1 stock split in February 2017. The cash was obtained from the proceeds of new monetization contracts covering an equivalent number of Comcast shares. The terms of the new contracts allow the Company to retain upside participation in Comcast shares up to each respective contract's upside appreciation limit with downside exposure limited to the respective hedge price.

CVC - FAIR VALUE MEASUREMENT

CVC - FAIR VALUE MEASUREMENT	12 Months Ended
	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
FAIR VALUE MEASUREMENT	FAIR VALUE MEASUREMENT The fair value hierarchy is based on inputs to valuation techniques that are used to measure fair value that are either observable or unobservable. Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity's pricing based upon their own market assumptions. The fair value hierarchy consists of the following three levels: • Level I - Quoted prices for identical instruments in active markets. • Level II - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable. • Level III - Instruments whose significant value drivers are unobservable. The following table presents for each of these hierarchy levels, the Company's financial assets and financial liabilities that are measured at fair value on a recurring basis: Fair Value Hierarchy December 31, 2017 December 31, 2016 Assets: Money market funds (of which $14,700 is classified as restricted cash as of December 31, 2016) Level I $ 5,949 $ 100,139 Investment securities pledged as collateral Level I 1,720,357 1,483,030 Prepaid forward contracts Level II 52,545 10,956 Liabilities: Prepaid forward contracts Level II 162,049 13,158 Interest rate swap contracts Level II 77,902 78,823 Contingent consideration related to 2017 acquisitions Level III 32,233 — The Company's cash equivalents, investment securities and investment securities pledged as collateral are classified within Level I of the fair value hierarchy because they are valued using quoted market prices. The Company's derivative contracts and liabilities under derivative contracts on the Company's balance sheets are valued using market-based inputs to valuation models. These valuation models require a variety of inputs, including contractual terms, market prices, yield curves, and measures of volatility. When appropriate, valuations are adjusted for various factors such as liquidity, bid/offer spreads and credit risk considerations. Such adjustments are generally based on available market evidence. Since model inputs can generally be verified and do not involve significant management judgment, the Company has concluded that these instruments should be classified within Level II of the fair value hierarchy. The fair value of the contingent consideration related to acquisitions in the first and fourth quarters of 2017 of $30,000 and $2,233 , respectively, was estimated based on a probability assessment of attaining the targets. The estimated amount recorded as of December 31, 2017 is the full contractual amount for the first quarter acquisition and approximately 51% of the contractual amount for the acquisition that occurred in the fourth quarter. Fair Value of Financial Instruments The following methods and assumptions were used to estimate fair value of each class of financial instruments for which it is practicable to estimate: Credit Facility Debt, Collateralized Indebtedness, Senior Notes and Debentures, Senior Secured Notes, Senior Guaranteed Notes, Notes Payable to Affiliates and Related Parties and Notes Payable The fair values of each of the Company's debt instruments are based on quoted market prices for the same or similar issues or on the current rates offered to the Company for instruments of the same remaining maturities. The fair value of notes payable is based primarily on the present value of the remaining payments discounted at the borrowing cost. The carrying values, estimated fair values, and classification under the fair value hierarchy of the Company's financial instruments, excluding those that are carried at fair value in the accompanying consolidated balance sheets, are summarized as follows: December 31, 2017 December 31, 2016 Fair Value Hierarchy Carrying Amount (a) Estimated Fair Value Carrying Amount (a) Estimated Fair Value Altice USA debt instruments: Notes payable to affiliates and related parties Level II $ — $ — $ 1,750,000 $ 1,837,876 CSC Holdings debt instruments: Credit facility debt Level II 3,393,306 3,435,000 2,631,887 2,675,256 Collateralized indebtedness Level II 1,349,474 1,305,932 1,286,069 1,280,048 Senior guaranteed notes Level II 2,291,185 2,420,000 2,289,494 2,416,375 Senior notes and debentures Level II 6,409,889 7,221,846 6,732,816 7,731,150 Notes payable Level II 56,956 55,289 13,726 13,260 Cablevision senior notes Level II 1,818,115 1,931,239 2,742,082 2,920,056 Cequel debt instruments: Cequel credit facility Level II 1,250,217 1,258,675 812,903 815,000 Senior secured notes Level II 2,570,506 2,658,930 2,566,802 2,689,750 Senior notes Level II 2,770,737 2,983,615 3,176,131 3,517,275 Notes payable Level II 8,946 8,945 — — $ 21,919,331 $ 23,279,471 $ 24,001,910 $ 25,896,046 (a) Amounts are net of unamortized deferred financing costs and discounts/premiums. The fair value estimates related to the Company's debt instruments presented above are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates are subjective in nature and involve uncertainties and matters of significant judgments and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates.
Cablevision Systems Corporation And Subsidiaries
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
FAIR VALUE MEASUREMENT	FAIR VALUE MEASUREMENT The fair value hierarchy is based on inputs to valuation techniques that are used to measure fair value that are either observable or unobservable. Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity's pricing based upon their own market assumptions. The fair value hierarchy consists of the following three levels: • Level I - Quoted prices for identical instruments in active markets. • Level II - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable. • Level III - Instruments whose significant value drivers are unobservable. The following table presents for each of these hierarchy levels, the Company's financial assets and financial liabilities that are measured at fair value on a recurring basis: At December 31, 2015 Level I Level II Level III Total Assets: Money market funds $ 922,765 $ — $ — $ 922,765 Investment securities 130 — — 130 Investment securities pledged as collateral 1,211,982 — — 1,211,982 Prepaid forward contracts — 82,408 — 82,408 Liabilities: Prepaid forward contracts — 2,706 — 2,706 The Company's cash equivalents, investment securities and investment securities pledged as collateral are classified within Level I of the fair value hierarchy because they are valued using quoted market prices. The Company's prepaid forward contracts reflected as derivative contracts and liabilities under derivative contracts on the Company's balance sheets are valued using market-based inputs to valuation models. These valuation models require a variety of inputs, including contractual terms, market prices, yield curves, and measures of volatility. When appropriate, valuations are adjusted for various factors such as liquidity, bid/offer spreads and credit risk considerations. Such adjustments are generally based on available market evidence. Since model inputs can generally be verified and do not involve significant management judgment, the Company has concluded that these instruments should be classified within Level II of the fair value hierarchy. In addition, see Note 9 for a discussion of impairment charges related to nonfinancial assets not measured at fair value on a recurring basis. Fair Value of Financial Instruments The following methods and assumptions were used to estimate fair value of each class of financial instruments for which it is practicable to estimate: Credit Facility Debt, Collateralized Indebtedness, Senior Notes and Debentures, Senior Guaranteed Notes and Notes Payable The fair values of each of the Company's debt instruments are based on quoted market prices for the same or similar issues or on the current rates offered to the Company for instruments of the same remaining maturities. The fair value of notes payable is based primarily on the present value of the remaining payments discounted at the borrowing cost. The carrying values, estimated fair values, and classification under the fair value hierarchy of the Company's financial instruments, excluding those that are carried at fair value in the accompanying consolidated balance sheets, are summarized as follows: December 31, 2015 Fair Value Hierarchy Carrying Amount Estimated Fair Value Debt instruments: Credit facility debt Level II $ 2,514,454 $ 2,525,654 Collateralized indebtedness Level II 1,191,324 1,176,396 Senior notes and debentures Level II 5,801,011 5,756,608 Notes payable Level II 14,544 14,483 Total debt instruments $ 9,521,333 $ 9,473,141 The fair value estimates related to the Company's debt instruments and senior notes receivable presented above are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates are subjective in nature and involve uncertainties and matters of significant judgments and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates.

CVC - INCOME TAXES

CVC - INCOME TAXES	12 Months Ended
	Dec. 31, 2017
INCOME TAXES	INCOME TAXES The Company files a federal consolidated and certain state combined income tax returns with its 80% or more owned subsidiaries. Income tax benefit attributable to the Company's operations for the years ended December 31, 2017 and 2016 consist of the following components: Years Ended December 31, 2017 2016 Current expense (benefit): Federal $ 5,657 $ (981 ) State 12,509 5,310 18,166 4,329 Deferred benefit: Federal (2,088,652 ) (223,159 ) State (782,492 ) (40,830 ) (2,871,144 ) (263,989 ) Tax benefit relating to uncertain tax positions 11 (6 ) Income tax benefit $ (2,852,967 ) $ (259,666 ) The income tax benefit attributable to the Company's operations differs from the amount derived by applying the statutory federal rate to pretax loss principally due to the effect of the following items: Years Ended December 31, 2017 2016 Federal tax benefit at statutory rate $ (465,972 ) $ (381,901 ) State income taxes, net of federal impact (59,719 ) (39,336 ) Changes in the valuation allowance (111 ) 297 Impact of Federal Tax Reform (2,337,900 ) — Changes in the state rates used to measure deferred taxes, net of federal impact (12,896 ) 153,239 Tax benefit relating to uncertain tax positions (253 ) (120 ) Non-deductible share-based compensation related to the carried unit plan 20,101 5,029 Non-deductible Cablevision Acquisition transaction costs — 4,457 Other non-deductible expenses 3,349 1,551 Other, net 434 (2,882 ) Income tax benefit $ (2,852,967 ) $ (259,666 ) Pursuant to the enactment of the Tax Cuts & Jobs Act ("Tax Reform") on December 22, 2017, the Company recorded a noncash deferred tax benefit of $2,337,900 to remeasure the net deferred tax liability to adjust for the reduction in the corporate federal income tax rate 35% to 21% which is effective on January 1, 2018. This adjustment results primarily from a decrease in the deferred tax liabilities with regard to fixed assets and intangibles, partially offset by a decrease in the deferred tax asset for the federal net operating loss carry forward (‘‘NOL’’). The noncash deferred tax benefit is provisional. Revised estimates and additional guidance regarding application of Tax Reform may require adjustments during the allowable measurement period. Overall, Tax Reform will have a favorable impact on the Company’s income tax profile. Additional first-year depreciation deductions represent a significant timing benefit. Since Tax Reform only limits the deduction for NOLs arising in years beginning after December 31, 2017, the timing of the Company’s deductions with regard to its existing NOLs is largely unaffected. The Company will be subject to Tax Reform’s limitation on interest deductibility which is based on a limit calculated without regard to depreciation or amortization through 2021. The resulting interest deduction that is deferred, and can be carried forward indefinitely, is expected to fully reverse. However, as is the case with any future deductible temporary difference, management will evaluate realizability to determine whether a valuation allowance is required. Management does not expect that a valuation allowance will be required based on its preliminary estimate of the current facts and circumstances. Repeal of the alternative minimum tax will reduce projected tax payments in the short term while also providing for the refund of alternative minimum tax credits. As described in Note 1, in June, 2016, (i) Cequel was contributed to Altice USA and (ii) Altice USA completed the Cablevision Acquisition. Accordingly, in the second quarter of 2016, Cequel and Cablevision joined the federal consolidated and certain state combined income tax returns of Altice USA. As a result, the applicate tax rate used to measure deferred tax assets and liabilities of Cequel increased, resulting in a noncash deferred income tax charge of $153,660 . The tax effects of temporary differences which give rise to significant portions of deferred tax assets or liabilities and the corresponding valuation allowance are as follows. December 31, 2017 2016 Noncurrent NOLs and tax credit carry forwards $ 784,334 $ 971,728 Compensation and benefit plans 48,280 93,939 Partnership investments 68,054 113,473 Restructuring liability 33,247 37,393 Other liabilities 38,140 45,561 Liabilities under derivative contracts 21,034 31,529 Interest deferred for tax purposes 128,516 39,633 Other 7,182 6,615 Deferred tax asset 1,128,787 1,339,871 Valuation allowance (3,000 ) (3,125 ) Net deferred tax asset, noncurrent 1,125,787 1,336,746 Fixed assets and intangibles (5,733,319 ) (9,065,635 ) Investments (113,628 ) (187,795 ) Prepaid expenses (8,007 ) (10,172 ) Fair value adjustments related to debt and deferred financing costs (40,215 ) (30,535 ) Other (5,733 ) (9,424 ) Deferred tax liability, noncurrent (5,900,902 ) (9,303,561 ) Total net deferred tax liability $ (4,775,115 ) $ (7,966,815 ) On January 1, 2017, the Company adopted ASU No. 2016-09 using the prospective transition method with respect to the presentation of excess tax benefits in the statement of cash flows. In connection with the adoption, a deferred tax asset of $310,771 for previously unrealized excess tax benefits related to share-based payment awards was recognized with the offset recorded to accumulated deficit. As of December 31, 2017, the Company's federal NOLs were approximately $2,670,000 . The utilization of certain pre-merger NOLs of Cablevision and Cequel are limited pursuant to Internal Revenue Code Section 382. The Company does not expect such limitations to impact the ability to utilize the NOLs prior to their expiration. As of December 31, 2017, the Company has $48,995 of alternative minimum tax credits which do not expire and $17,806 of research credits, expiring in varying amounts from 2023 through 2035. Deferred tax assets have resulted primarily from the Company's future deductible temporary differences and NOLs. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax asset will not be realized. In evaluating the need for a valuation allowance, management takes into account various factors, including the expected level of future taxable income, available tax planning strategies and reversals of existing taxable temporary differences. If such estimates and related assumptions change in the future, the Company may be required to record additional valuation allowances against its deferred tax assets, resulting in additional income tax expense in the Company's consolidated statements of operations. Management evaluates the realizability of the deferred tax assets and the need for additional valuation allowances quarterly. Pursuant to the Cablevision Acquisition and Cequel Acquisition, deferred tax liabilities resulting from the book fair value adjustment increased significantly and future taxable income that will result from the reversal of existing taxable temporary differences for which deferred tax liabilities are recognized is sufficient to conclude it is more likely than not that the Company will realize all of its gross deferred tax assets, except those deferred tax assets against which a valuation allowance has been recorded which relate to certain state NOLs. In the normal course of business, the Company engages in transactions in which the income tax consequences may be uncertain. The Company's income tax returns are filed based on interpretation of tax laws and regulations. Such income tax returns are subject to examination by taxing authorities. For financial statement purposes, the Company only recognizes tax positions that it believes are more likely than not of being sustained. There is considerable judgment involved in determining whether positions taken or expected to be taken on the tax return are more likely than not of being sustained. A reconciliation of the beginning and ending amount of unrecognized tax benefits associated with uncertain tax positions, excluding associated deferred tax benefits and accrued interest, is as follows: Balance at January 1, 2016 $ 4,025 Increases related to prior year tax positions 11 Balance at December 31, 2017 $ 4,036 As of December 31, 2017, if all uncertain tax positions were sustained at the amounts reported or expected to be reported in the Company's tax returns, the elimination of the Company's unrecognized tax benefits, net of the deferred tax impact, would decrease income tax expense by $5,585 . In the second quarter of 2016, the Company changed its accounting policy on a prospective basis to present interest expense relating to uncertain tax positions as additional interest expense. For the year ended December 31, 2017, $659 of interest expense relating to uncertain tax position was recorded to interest expense. The most significant jurisdictions in which the Company is required to file income tax returns include the states of New York, New Jersey, Connecticut, the City of New York, Texas and West Virginia. The State of New York is presently auditing income tax returns for years 2009 through 2011. The State of New Jersey is presently auditing income tax returns for years 2013 through 2015. Management does not believe that the resolution of the ongoing income tax examination described above will have a material adverse impact on the financial position of the Company. Changes in the liabilities for uncertain tax positions will be recognized in the interim period in which the positions are effectively settled or there is a change in factual circumstances.
Cablevision Systems Corporation And Subsidiaries
INCOME TAXES	INCOME TAXES Income tax expense attributable to the Company's continuing operations consists of the following components: January 1 to June 20, 2016 Year Ended December 31, 2015 Current expense: Federal $ 6,473 $ 4,844 State 1,917 15,869 8,390 20,713 Deferred (benefit) expense: Federal 93,253 97,927 State 22,897 35,469 116,150 133,396 Tax (benefit) expense relating to uncertain tax positions 308 763 Income tax expense $ 124,848 $ 154,872 Income tax benefit attributable to discontinued operations for the year ended December 31, 2015 of $8,731 is comprised of current and deferred income tax benefit of $111 and $8,620 , respectively. The income tax (benefit) expense attributable to the Company's continuing operations differs from the amount derived by applying the statutory federal rate to pretax income principally due to the effect of the following items: January 1 to June 20, 2016 Year Ended December 31, 2015 Federal tax expense at statutory rate $ 100,926 $ 119,931 State income taxes, net of federal impact 14,825 18,874 Changes in the valuation allowance 86 (902 ) Changes in the state rates used to measure deferred taxes, net of federal impact — (1,006 ) Tax expense (benefit) relating to uncertain tax positions 178 574 New York tax reform — 16,334 Non-deductible officers' compensation 462 846 Non-deductible merger transaction costs 9,392 — Other non-deductible expenses 1,337 3,099 Research credit (850 ) (2,630 ) Adjustment to prior year tax expense — (515 ) Other, net (1,508 ) 267 Income tax expense $ 124,848 $ 154,872 The tax effects of temporary differences which give rise to significant portions of deferred tax assets or liabilities and the corresponding valuation allowance at December 31, 2015 are as follows. Deferred Tax Asset (Liability) Current NOLs and tax credit carry forwards $ 76,007 Compensation and benefit plans 80,831 Allowance for doubtful accounts 2,196 Merger transaction costs 7,332 Inventory 7,135 Other 26,216 Deferred tax asset 199,717 Valuation allowance (2,098 ) Net deferred tax asset, current 197,619 Investments (163,396 ) Prepaid expenses (19,627 ) Deferred tax liability, current (183,023 ) Net deferred tax asset, current $ 14,596 Noncurrent NOLs and tax credit carry forwards 36,866 Compensation and benefit plans 97,005 Partnership investments 123,529 Investments 9,798 Other 9,201 Deferred tax asset 276,399 Valuation allowance (2,816 ) Net deferred tax asset, noncurrent 273,583 Fixed assets and intangibles (978,418 ) Deferred tax liability, noncurrent (978,418 ) Net deferred tax liability, noncurrent (704,835 ) Total net deferred tax liability $ (690,239 ) The Company used the 'with-and-without' approach to determine the recognition and measurement of excess tax benefits. Cash flows resulting from excess tax benefits were classified as cash flows from financing activities. Excess tax benefits are realized tax benefits from tax deductions for options exercised and restricted shares issued in excess of the deferred tax asset attributable to share-based compensation expense for such awards. The Company realized excess tax benefit of $82 and $5,694 for the period January 1, 2016 through June 20, 2016, and for the year ended December 31, 2015, respectively, resulting in an increase to paid-in-capital. Deferred tax assets have resulted primarily from the Company's future deductible temporary differences and NOLs. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax asset will not be realized. The Company's ability to realize its deferred tax assets depends upon the generation of sufficient future taxable income and tax planning strategies to allow for the utilization of its NOLs and deductible temporary differences. If such estimates and related assumptions change in the future, the Company may be required to record additional valuation allowances against its deferred tax assets, resulting in additional income tax expense in the Company's consolidated statements of income. Management evaluates the realizability of the deferred tax assets and the need for additional valuation allowances quarterly. At this time, based on current facts and circumstances, management believes that it is more likely than not that the Company will realize benefit for its gross deferred tax assets, except those deferred tax assets against which a valuation allowance has been recorded which relate to certain state NOLs. In the normal course of business, the Company engages in transactions in which the income tax consequences may be uncertain. The Company's income tax returns are filed based on interpretation of tax laws and regulations. Such income tax returns are subject to examination by taxing authorities. For financial statement purposes, the Company only recognizes tax positions that it believes are more likely than not of being sustained. There is considerable judgment involved in determining whether positions taken or expected to be taken on the tax return are more likely than not of being sustained. A reconciliation of the beginning and ending amount of unrecognized tax benefits associated with uncertain tax positions, excluding associated deferred tax benefits and accrued interest, is as follows: Balance at December 31, 2015 $ 4,022 Increases related to prior year tax positions 3 Increases related to current year tax positions 6 Balance at June 20, 2016 $ 4,031 In the second quarter of 2016, the Company changed its accounting policy on a prospective basis to present interest expense relating to uncertain tax positions as additional interest expense. During the period ended June 20, 2016 and December 31, 2015, interest expense of $209 and $314 was included in income tax expense, respectively. The most significant jurisdictions in which the Company is required to file income tax returns include the states of New York, New Jersey and Connecticut and the City of New York. The State of New York is presently auditing income tax returns for years 2009 through 2011. Management does not believe that the resolution of the ongoing income tax examination described above will have a material adverse impact on the financial position of the Company. Changes in the liabilities for uncertain tax positions will be recognized in the interim period in which the positions are effectively settled or there is a change in factual circumstances.

CVC - BENEFIT PLANS

CVC - BENEFIT PLANS	12 Months Ended
	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Income Tax Disclosure [Text Block]	INCOME TAXES The Company files a federal consolidated and certain state combined income tax returns with its 80% or more owned subsidiaries. Income tax benefit attributable to the Company's operations for the years ended December 31, 2017 and 2016 consist of the following components: Years Ended December 31, 2017 2016 Current expense (benefit): Federal $ 5,657 $ (981 ) State 12,509 5,310 18,166 4,329 Deferred benefit: Federal (2,088,652 ) (223,159 ) State (782,492 ) (40,830 ) (2,871,144 ) (263,989 ) Tax benefit relating to uncertain tax positions 11 (6 ) Income tax benefit $ (2,852,967 ) $ (259,666 ) The income tax benefit attributable to the Company's operations differs from the amount derived by applying the statutory federal rate to pretax loss principally due to the effect of the following items: Years Ended December 31, 2017 2016 Federal tax benefit at statutory rate $ (465,972 ) $ (381,901 ) State income taxes, net of federal impact (59,719 ) (39,336 ) Changes in the valuation allowance (111 ) 297 Impact of Federal Tax Reform (2,337,900 ) — Changes in the state rates used to measure deferred taxes, net of federal impact (12,896 ) 153,239 Tax benefit relating to uncertain tax positions (253 ) (120 ) Non-deductible share-based compensation related to the carried unit plan 20,101 5,029 Non-deductible Cablevision Acquisition transaction costs — 4,457 Other non-deductible expenses 3,349 1,551 Other, net 434 (2,882 ) Income tax benefit $ (2,852,967 ) $ (259,666 ) Pursuant to the enactment of the Tax Cuts & Jobs Act ("Tax Reform") on December 22, 2017, the Company recorded a noncash deferred tax benefit of $2,337,900 to remeasure the net deferred tax liability to adjust for the reduction in the corporate federal income tax rate 35% to 21% which is effective on January 1, 2018. This adjustment results primarily from a decrease in the deferred tax liabilities with regard to fixed assets and intangibles, partially offset by a decrease in the deferred tax asset for the federal net operating loss carry forward (‘‘NOL’’). The noncash deferred tax benefit is provisional. Revised estimates and additional guidance regarding application of Tax Reform may require adjustments during the allowable measurement period. Overall, Tax Reform will have a favorable impact on the Company’s income tax profile. Additional first-year depreciation deductions represent a significant timing benefit. Since Tax Reform only limits the deduction for NOLs arising in years beginning after December 31, 2017, the timing of the Company’s deductions with regard to its existing NOLs is largely unaffected. The Company will be subject to Tax Reform’s limitation on interest deductibility which is based on a limit calculated without regard to depreciation or amortization through 2021. The resulting interest deduction that is deferred, and can be carried forward indefinitely, is expected to fully reverse. However, as is the case with any future deductible temporary difference, management will evaluate realizability to determine whether a valuation allowance is required. Management does not expect that a valuation allowance will be required based on its preliminary estimate of the current facts and circumstances. Repeal of the alternative minimum tax will reduce projected tax payments in the short term while also providing for the refund of alternative minimum tax credits. As described in Note 1, in June, 2016, (i) Cequel was contributed to Altice USA and (ii) Altice USA completed the Cablevision Acquisition. Accordingly, in the second quarter of 2016, Cequel and Cablevision joined the federal consolidated and certain state combined income tax returns of Altice USA. As a result, the applicate tax rate used to measure deferred tax assets and liabilities of Cequel increased, resulting in a noncash deferred income tax charge of $153,660 . The tax effects of temporary differences which give rise to significant portions of deferred tax assets or liabilities and the corresponding valuation allowance are as follows. December 31, 2017 2016 Noncurrent NOLs and tax credit carry forwards $ 784,334 $ 971,728 Compensation and benefit plans 48,280 93,939 Partnership investments 68,054 113,473 Restructuring liability 33,247 37,393 Other liabilities 38,140 45,561 Liabilities under derivative contracts 21,034 31,529 Interest deferred for tax purposes 128,516 39,633 Other 7,182 6,615 Deferred tax asset 1,128,787 1,339,871 Valuation allowance (3,000 ) (3,125 ) Net deferred tax asset, noncurrent 1,125,787 1,336,746 Fixed assets and intangibles (5,733,319 ) (9,065,635 ) Investments (113,628 ) (187,795 ) Prepaid expenses (8,007 ) (10,172 ) Fair value adjustments related to debt and deferred financing costs (40,215 ) (30,535 ) Other (5,733 ) (9,424 ) Deferred tax liability, noncurrent (5,900,902 ) (9,303,561 ) Total net deferred tax liability $ (4,775,115 ) $ (7,966,815 ) On January 1, 2017, the Company adopted ASU No. 2016-09 using the prospective transition method with respect to the presentation of excess tax benefits in the statement of cash flows. In connection with the adoption, a deferred tax asset of $310,771 for previously unrealized excess tax benefits related to share-based payment awards was recognized with the offset recorded to accumulated deficit. As of December 31, 2017, the Company's federal NOLs were approximately $2,670,000 . The utilization of certain pre-merger NOLs of Cablevision and Cequel are limited pursuant to Internal Revenue Code Section 382. The Company does not expect such limitations to impact the ability to utilize the NOLs prior to their expiration. As of December 31, 2017, the Company has $48,995 of alternative minimum tax credits which do not expire and $17,806 of research credits, expiring in varying amounts from 2023 through 2035. Deferred tax assets have resulted primarily from the Company's future deductible temporary differences and NOLs. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax asset will not be realized. In evaluating the need for a valuation allowance, management takes into account various factors, including the expected level of future taxable income, available tax planning strategies and reversals of existing taxable temporary differences. If such estimates and related assumptions change in the future, the Company may be required to record additional valuation allowances against its deferred tax assets, resulting in additional income tax expense in the Company's consolidated statements of operations. Management evaluates the realizability of the deferred tax assets and the need for additional valuation allowances quarterly. Pursuant to the Cablevision Acquisition and Cequel Acquisition, deferred tax liabilities resulting from the book fair value adjustment increased significantly and future taxable income that will result from the reversal of existing taxable temporary differences for which deferred tax liabilities are recognized is sufficient to conclude it is more likely than not that the Company will realize all of its gross deferred tax assets, except those deferred tax assets against which a valuation allowance has been recorded which relate to certain state NOLs. In the normal course of business, the Company engages in transactions in which the income tax consequences may be uncertain. The Company's income tax returns are filed based on interpretation of tax laws and regulations. Such income tax returns are subject to examination by taxing authorities. For financial statement purposes, the Company only recognizes tax positions that it believes are more likely than not of being sustained. There is considerable judgment involved in determining whether positions taken or expected to be taken on the tax return are more likely than not of being sustained. A reconciliation of the beginning and ending amount of unrecognized tax benefits associated with uncertain tax positions, excluding associated deferred tax benefits and accrued interest, is as follows: Balance at January 1, 2016 $ 4,025 Increases related to prior year tax positions 11 Balance at December 31, 2017 $ 4,036 As of December 31, 2017, if all uncertain tax positions were sustained at the amounts reported or expected to be reported in the Company's tax returns, the elimination of the Company's unrecognized tax benefits, net of the deferred tax impact, would decrease income tax expense by $5,585 . In the second quarter of 2016, the Company changed its accounting policy on a prospective basis to present interest expense relating to uncertain tax positions as additional interest expense. For the year ended December 31, 2017, $659 of interest expense relating to uncertain tax position was recorded to interest expense. The most significant jurisdictions in which the Company is required to file income tax returns include the states of New York, New Jersey, Connecticut, the City of New York, Texas and West Virginia. The State of New York is presently auditing income tax returns for years 2009 through 2011. The State of New Jersey is presently auditing income tax returns for years 2013 through 2015. Management does not believe that the resolution of the ongoing income tax examination described above will have a material adverse impact on the financial position of the Company. Changes in the liabilities for uncertain tax positions will be recognized in the interim period in which the positions are effectively settled or there is a change in factual circumstances.
BENEFIT PLANS	BENEFIT PLANS Qualified and Non-qualified Defined Benefit Plans Retirement Plans (collectively, the "Defined Benefit Plans") The Company sponsors a non-contributory qualified defined benefit cash balance retirement plan (the "Pension Plan") for the benefit of non-union employees of Cablevision, as well as certain employees covered by a collective bargaining agreement in Brooklyn. The Company maintains an unfunded non-contributory non-qualified defined benefit excess cash balance plan ("Excess Cash Balance Plan") covering certain current and former employees of Cablevision who participate in the Pension Plan. The Company also maintained an additional unfunded non-contributory, non-qualified defined benefit plan ("CSC Supplemental Benefit Plan") for the benefit of certain former officers and employees of Cablevision which provided that, upon retiring on or after normal retirement age, a participant receives a benefit equal to a specified percentage of the participant's average compensation, as defined. All participants were 100% vested in the CSC Supplemental Benefit Plan. The benefits related to the CSC Supplemental Plan were paid to participants in January 2017 and the plan was terminated. Cablevision's Pension Plan and the Excess Cash Balance Plan are frozen and no employee of Cablevision who was not already a participant could participate in the plans and no further annual Pay Credits (a certain percentage of employees' eligible pay) are made. Existing account balances under the plans continue to be credited with monthly interest in accordance with the terms of the plans. Plan Results for Defined Benefit Plans Summarized below is the funded status and the amounts recorded on the Company's consolidated balance sheets for all of the Company's Defined Benefit Plans at December 31, 2017 and 2016: December 31, 2017 2016 Change in projected benefit obligation: Projected benefit obligation at beginning of year $ 382,517 $ 403,963 Interest cost 11,786 14,077 Actuarial loss (gain) 13,171 (11,429 ) Curtailments 6,332 3,968 Settlements 6,910 — Benefits paid (121,650 ) (28,062 ) Projected benefit obligation at end of year 299,066 382,517 Change in plan assets: Fair value of plan assets at beginning of year 284,118 297,846 Actual return on plan assets, net 6,356 5,829 Employer contributions 26,944 8,505 Benefits paid (121,650 ) (28,062 ) Fair value of plan assets at end of year 195,768 284,118 Unfunded status at end of year $ (103,298 ) $ (98,399 ) The accumulated benefit obligation for the Company's Defined Benefit Plans aggregated $299,066 and $382,517 at December 31, 2017 and 2016. The Company's net funded status relating to its Defined Benefit Plans at December 31, 2017 and 2016, is as follows: December 31, 2017 2016 Defined Benefit Plans $ (103,298 ) $ (98,399 ) Less: Current portion related to nonqualified plans 135 14,293 Long-term defined benefit plan obligations $ (103,163 ) $ (84,106 ) Components of the net periodic benefit cost, recorded in other operating expenses, for the Defined Benefit Plans for the years ended December 31, 2017 and 2016, is as follows: Years Ended December 31, 2017 2016 Interest cost $ 11,786 $ 6,946 Expected return on plan assets, net (4,907 ) (4,022 ) Curtailment loss 3,137 231 Settlement loss (income) (reclassified from accumulated other comprehensive loss) (a) 1,845 (154 ) Net periodic benefit cost $ 11,861 $ 3,001 (a) As a result of benefit payments to terminated or retired individuals exceeding the service and interest costs for the Pension Plan and the Excess Cash Balance Pension Plan during the year ended December 31, 2017 and during the period June 21, 2016 through December 31, 2016, the Company recognized a non-cash settlement loss that represented the acceleration of the recognition of a portion of the previously unrecognized actuarial losses recorded in accumulated other comprehensive loss on the Company’s consolidated balance sheet relating to these plans. Plan Assumptions for Defined Benefit Plans Weighted-average assumptions used to determine net periodic cost (made at the beginning of the year) and benefit obligations (made at the end of the year) for the Defined Benefit Plans are as follows: Net Periodic Benefit Cost Benefit Obligations at December 31, For the Year Ended December 31, 2017 For the Period June 21, 2016 to December 31, 2016 2017 2016 Discount rate (a) 3.69 % 3.53 % 3.50 % 3.81 % Rate of increase in future compensation levels — % — % — % — % Expected rate of return on plan assets (Pension Plan only) 3.90 % 3.97 % N/A N/A (a) The discount rate of 3.53% for the period June 21, 2016 through December 31, 2016, represents the average of the quarterly discount rates used to remeasure the Company's projected benefit obligation and net periodic benefit cost in connection with the recognition of settlement losses discussed above. The discount rate used by the Company in calculating the net periodic benefit cost for the Cash Balance Plan and the Excess Cash Balance Plan was determined based on the expected future benefit payments for the plans and from the Towers Watson U.S. Rate Link: 40-90 Discount Rate Model. The model was developed by examining the yields on selected highly rated corporate bonds. The Company's expected long-term return on Pension Plan assets is based on a periodic review and modeling of the plan's asset allocation structure over a long-term horizon. Expectations of returns and risk for each asset class are the most important of the assumptions used in the review and modeling and are based on comprehensive reviews of historical data, forward looking economic outlook, and economic/financial market theory. The expected long-term rate of return was chosen as a best estimate and was determined by (a) historical real returns, net of inflation, for the asset classes covered by the investment policy, and (b) projections of inflation over the long-term period during which benefits are payable to plan participants. Pension Plan Assets and Investment Policy The weighted average asset allocations of the Pension Plan at December 31, 2017 and 2016 were as follows: Plan Assets at December 31, 2017 2016 Asset Class: Mutual funds 32 % 43 % Fixed income securities 66 55 Cash equivalents and other 2 2 100 % 100 % The Pension Plan's investment objectives reflect an overall low risk tolerance to stock market volatility. This strategy allows for the Pension Plan to invest in portfolios that would obtain a rate of return throughout economic cycles, commensurate with the investment risk and cash flow needs of the Pension Plan. The investments held in the Pension Plan are readily marketable and can be sold to fund benefit payment obligations of the plan as they become payable. Investment allocation decisions are formally made by the Company's Benefit Committee, which takes into account investment advice provided by its external investment consultant. The investment consultant takes into account expected long-term risk, return, correlation, and other prudent investment assumptions when recommending asset classes and investment managers to the Company's Benefit Committee. The major categories of the Pension Plan assets are cash equivalents and bonds which are marked-to-market on a daily basis. Due to the Pension Plan's significant holdings in long-term government and non-government fixed income securities, the Pension Plan's assets are subjected to interest rate risk; specifically, a rising interest rate environment. Consequently, an increase in interest rates may cause a decrease to the overall liability of the Pension Plan thus creating a hedge against rising interest rates. In addition, a portion of the Pension Plan's bond portfolio is invested in foreign debt securities where there could be foreign currency risks associated with them, as well as in non-government securities which are subject to credit risk of the bond issuer defaulting on interest and/or principal payments. Investments at Estimated Fair Value The fair values of the assets of the Pension Plan at December 31, 2017 by asset class are as follows: Asset Class Level I Level II Level III Total Mutual funds $ 61,833 $ — $ — $ 61,833 Fixed income securities held in a portfolio: Foreign issued corporate debt — 10,721 — 10,721 U.S. corporate debt — 39,992 — 39,992 Government debt — 4,645 — 4,645 U.S. Treasury securities — 62,601 — 62,601 Asset-backed securities — 10,978 — 10,978 Other — — — — Cash equivalents (a) 6,691 2,782 — 9,473 Total (b) $ 68,524 $ 131,719 $ — $ 200,243 (a) A significant portion represents an investment in a short-term investment fund that invests primarily in securities of high quality and low risk. (b) Excludes cash and net payables relating to the purchase of securities that were not settled as of December 31, 2017. The fair values of the assets of the Pension Plan at December 31, 2016 by asset class are as follows: Asset Class Level I Level II Level III Total Mutual funds $ 121,356 $ — $ — $ 121,356 Fixed income securities held in a portfolio: Foreign issued corporate debt — 13,583 — 13,583 U.S. corporate debt — 48,046 — 48,046 Government debt — 4,810 — 4,810 U.S. Treasury securities — 77,285 — 77,285 Asset-backed securities — 14,065 — 14,065 Other — 247 — 247 Cash equivalents (a) 2,593 3,089 — 5,682 Total (b) $ 123,949 $ 161,125 $ — $ 285,074 (a) A significant portion represents an investment in a short-term investment fund that invests primarily in securities of high quality and low risk. (b) Excludes cash and net payables relating to the purchase of securities that were not settled as of December 31, 2016. The fair values of mutual funds and cash equivalents were derived from quoted market prices that the Pension Plan administrator has the ability to access. The fair values of corporate and government debt, treasury securities and asset-back securities were derived from bids received from a vendor or broker not available in an active market that the Pension Plan administrator has the ability to access. Benefit Payments and Contributions for Defined Benefit Plans The following benefit payments are expected to be paid during the periods indicated: 2018 $ 96,482 2019 18,960 2020 14,052 2021 13,282 2022 13,792 2023-2027 69,369 The Company currently expects to contribute approximately $18,000 to the Pension Plan in 2018. Defined Contribution Plans The Company maintains the Cablevision 401(k) Savings Plan, a contributory qualified defined contribution plan for the benefit of non-union employees of Cablevision. Participants can contribute a percentage of eligible annual compensation and the Company will make a matching cash contribution or discretionary contribution, as defined in the plan. In addition, the Company maintains an unfunded non-qualified excess savings plan which was frozen on January 1, 2017 for which the Company provided a matching contribution similar to the Cablevision 401(k) Savings Plan. Applicable employees of the Company were eligible for an enhanced employer matching contribution, as well as a year-end employer discretionary contribution to the Cablevision 401(k) Savings Plan and the Cablevision Excess Savings Plan. Through September 30, 2017, the Company also maintained a 401(k) plan for employees of Cequel. Cequel employees that qualified for participation were able to contribute a percentage of eligible annual compensation and the Company would make a matching cash contribution, as defined in the plan. During the fourth quarter of 2017, the Suddenlink 401(k) plan assets were transferred to the Cablevision 401(k) Savings Plan and the plan was renamed the Altice USA 401(k) Savings Plan. The cost associated with these plans (including the enhanced employer matching and discretionary contributions on 2016) was $27,577 and $28,501 for the years ended December 31, 2017 and 2016, respectively.
Cablevision Systems Corporation And Subsidiaries
Defined Benefit Plan Disclosure [Line Items]
Income Tax Disclosure [Text Block]	INCOME TAXES Income tax expense attributable to the Company's continuing operations consists of the following components: January 1 to June 20, 2016 Year Ended December 31, 2015 Current expense: Federal $ 6,473 $ 4,844 State 1,917 15,869 8,390 20,713 Deferred (benefit) expense: Federal 93,253 97,927 State 22,897 35,469 116,150 133,396 Tax (benefit) expense relating to uncertain tax positions 308 763 Income tax expense $ 124,848 $ 154,872 Income tax benefit attributable to discontinued operations for the year ended December 31, 2015 of $8,731 is comprised of current and deferred income tax benefit of $111 and $8,620 , respectively. The income tax (benefit) expense attributable to the Company's continuing operations differs from the amount derived by applying the statutory federal rate to pretax income principally due to the effect of the following items: January 1 to June 20, 2016 Year Ended December 31, 2015 Federal tax expense at statutory rate $ 100,926 $ 119,931 State income taxes, net of federal impact 14,825 18,874 Changes in the valuation allowance 86 (902 ) Changes in the state rates used to measure deferred taxes, net of federal impact — (1,006 ) Tax expense (benefit) relating to uncertain tax positions 178 574 New York tax reform — 16,334 Non-deductible officers' compensation 462 846 Non-deductible merger transaction costs 9,392 — Other non-deductible expenses 1,337 3,099 Research credit (850 ) (2,630 ) Adjustment to prior year tax expense — (515 ) Other, net (1,508 ) 267 Income tax expense $ 124,848 $ 154,872 The tax effects of temporary differences which give rise to significant portions of deferred tax assets or liabilities and the corresponding valuation allowance at December 31, 2015 are as follows. Deferred Tax Asset (Liability) Current NOLs and tax credit carry forwards $ 76,007 Compensation and benefit plans 80,831 Allowance for doubtful accounts 2,196 Merger transaction costs 7,332 Inventory 7,135 Other 26,216 Deferred tax asset 199,717 Valuation allowance (2,098 ) Net deferred tax asset, current 197,619 Investments (163,396 ) Prepaid expenses (19,627 ) Deferred tax liability, current (183,023 ) Net deferred tax asset, current $ 14,596 Noncurrent NOLs and tax credit carry forwards 36,866 Compensation and benefit plans 97,005 Partnership investments 123,529 Investments 9,798 Other 9,201 Deferred tax asset 276,399 Valuation allowance (2,816 ) Net deferred tax asset, noncurrent 273,583 Fixed assets and intangibles (978,418 ) Deferred tax liability, noncurrent (978,418 ) Net deferred tax liability, noncurrent (704,835 ) Total net deferred tax liability $ (690,239 ) The Company used the 'with-and-without' approach to determine the recognition and measurement of excess tax benefits. Cash flows resulting from excess tax benefits were classified as cash flows from financing activities. Excess tax benefits are realized tax benefits from tax deductions for options exercised and restricted shares issued in excess of the deferred tax asset attributable to share-based compensation expense for such awards. The Company realized excess tax benefit of $82 and $5,694 for the period January 1, 2016 through June 20, 2016, and for the year ended December 31, 2015, respectively, resulting in an increase to paid-in-capital. Deferred tax assets have resulted primarily from the Company's future deductible temporary differences and NOLs. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax asset will not be realized. The Company's ability to realize its deferred tax assets depends upon the generation of sufficient future taxable income and tax planning strategies to allow for the utilization of its NOLs and deductible temporary differences. If such estimates and related assumptions change in the future, the Company may be required to record additional valuation allowances against its deferred tax assets, resulting in additional income tax expense in the Company's consolidated statements of income. Management evaluates the realizability of the deferred tax assets and the need for additional valuation allowances quarterly. At this time, based on current facts and circumstances, management believes that it is more likely than not that the Company will realize benefit for its gross deferred tax assets, except those deferred tax assets against which a valuation allowance has been recorded which relate to certain state NOLs. In the normal course of business, the Company engages in transactions in which the income tax consequences may be uncertain. The Company's income tax returns are filed based on interpretation of tax laws and regulations. Such income tax returns are subject to examination by taxing authorities. For financial statement purposes, the Company only recognizes tax positions that it believes are more likely than not of being sustained. There is considerable judgment involved in determining whether positions taken or expected to be taken on the tax return are more likely than not of being sustained. A reconciliation of the beginning and ending amount of unrecognized tax benefits associated with uncertain tax positions, excluding associated deferred tax benefits and accrued interest, is as follows: Balance at December 31, 2015 $ 4,022 Increases related to prior year tax positions 3 Increases related to current year tax positions 6 Balance at June 20, 2016 $ 4,031 In the second quarter of 2016, the Company changed its accounting policy on a prospective basis to present interest expense relating to uncertain tax positions as additional interest expense. During the period ended June 20, 2016 and December 31, 2015, interest expense of $209 and $314 was included in income tax expense, respectively. The most significant jurisdictions in which the Company is required to file income tax returns include the states of New York, New Jersey and Connecticut and the City of New York. The State of New York is presently auditing income tax returns for years 2009 through 2011. Management does not believe that the resolution of the ongoing income tax examination described above will have a material adverse impact on the financial position of the Company. Changes in the liabilities for uncertain tax positions will be recognized in the interim period in which the positions are effectively settled or there is a change in factual circumstances.
BENEFIT PLANS	BENEFIT PLANS Qualified and Non-qualified Defined Benefit Plans Cablevision Retirement Plans (collectively, the "Defined Benefit Plans") The Company sponsors a non-contributory qualified defined benefit cash balance retirement plan (the "Pension Plan") for the benefit of non-union employees other than those of Newsday, as well as certain employees covered by a collective bargaining agreement in Brooklyn. The Company maintains an unfunded non-contributory non-qualified defined benefit excess cash balance plan ("Excess Cash Balance Plan") covering certain current and former employees of the Company who participate in the Pension Plan, as well as an additional unfunded non-contributory, non-qualified defined benefit plan ("CSC Supplemental Benefit Plan") for the benefit of certain former officers and employees of the Company which provided that, upon retiring on or after normal retirement age, a participant receives a benefit equal to a specified percentage of the participant's average compensation, as defined. All participants were 100% vested in the CSC Supplemental Benefit Plan. The benefits related to the CSC Supplemental Plan were paid to participants in January 2017 and the plan was terminated. The Company amended the Pension Plan and the Excess Cash Balance Plan to freeze participation and future benefit accruals effective December 31, 2013 for all Company employees except those covered by a collective bargaining agreement in Brooklyn. Effective April 1, 2015, participation was frozen and future benefit accruals ceased for employees covered by a collective bargaining agreement in Brooklyn. Therefore, after April 1, 2015, no employee of the Company who was not already a participant could participate in the plans and no further annual Pay Credits (a certain percentage of employees' eligible pay) were made. Existing account balances under the plans continue to be credited with monthly interest in accordance with the terms of the plans. Plan Results for Defined Benefit Plans Summarized below is the funded status and the amounts recorded on the Company's consolidated balance sheets for all of the Company's Defined Benefit Plans at December 31, 2015: Change in projected benefit obligation: Projected benefit obligation at beginning of year $ 430,846 Service cost 344 Interest cost 15,523 Actuarial (gain) loss (14,912 ) Curtailments — Benefits paid (27,838 ) Projected benefit obligation at end of year 403,963 Change in plan assets: Fair value of plan assets at beginning of year 303,676 Actual return (loss) on plan assets, net (3,921 ) Employer contributions 25,929 Benefits paid (27,838 ) Fair value of plan assets at end of year 297,846 Unfunded status at end of year $ (106,117 ) The accumulated benefit obligation for the Company's Defined Benefit Plans aggregated $403,963 at December 31, 2015. The Company's net funded status relating to its Defined Benefit Plans at December 31, 2015 are as follows: Defined Benefit Plans $ (106,117 ) Less: Current portion related to nonqualified plans 6,889 Long-term defined benefit plan obligations $ (99,228 ) Components of the net periodic benefit cost, recorded in other operating expenses, for the Defined Benefit Plans for the period January 1, 2016 to June 20, 2016 and for the year ended December 31, 2015, are as follows: January 1, 2016 to June 20, 2016 Year ended December 31, 2015 Service cost $ — $ 344 Interest cost 7,130 15,523 Expected return on plan assets, net (3,565 ) (8,297 ) Recognized actuarial loss (reclassified from accumulated other comprehensive loss) (1,446 ) 1,294 Settlement (income) loss (reclassified from accumulated other comprehensive loss) (a) 1,655 3,822 Net periodic benefit cost $ 3,774 $ 12,686 (a) As a result of benefit payments to terminated or retired individuals exceeding the service and interest costs for the Pension Plan and the Excess Cash Balance Pension Plan during the period January 1, 2016 through June 20, 2016, and year ended December 31, 2015, the Company recognized a non-cash settlement loss that represented the acceleration of the recognition of a portion of the previously unrecognized actuarial losses recorded in accumulated other comprehensive loss on the Company’s consolidated balance sheets relating to these plans. Plan Assumptions for Defined Benefit Plans Weighted-average assumptions used to determine net periodic cost (made at the beginning of the year) and benefit obligations (made at the end of the year) for the Defined Benefit Plans are as follows: Weighted-Average Assumptions Net Periodic Benefit Cost Benefit Obligations January 1, 2016 to June 20, 2016 Year ended December 31, 2015 December 31, 2015 Discount rate (a) 3.76 % 3.83 % 3.94 % Rate of increase in future compensation levels — % — % — % Expected rate of return on plan assets (Pension Plan only) 3.97 % 4.03 % N/A (a) The discount rates of 3.76% and 3.83%, for the period January 1, 2016 through June 20, 2016, and year ended December 31, 2015, respectively, represent the average of the quarterly discount rates used to remeasure the Company's projected benefit obligation and net periodic benefit cost in connection with the recognition of settlement losses discussed above. The discount rate used by the Company in calculating the net periodic benefit cost for the Cash Balance Plan and the Excess Cash Balance Plan was determined based on the expected future benefit payments for the plans and from the Towers Watson U.S. Rate Link: 40-90 Discount Rate Model. The model was developed by examining the yields on selected highly rated corporate bonds. The Company's expected long-term return on Pension Plan assets is based on a periodic review and modeling of the plan's asset allocation structure over a long-term horizon. Expectations of returns and risk for each asset class are the most important of the assumptions used in the review and modeling and are based on comprehensive reviews of historical data, forward looking economic outlook, and economic/financial market theory. The expected long-term rate of return was chosen as a best estimate and was determined by (a) historical real returns, net of inflation, for the asset classes covered by the investment policy, and (b) projections of inflation over the long-term period during which benefits are payable to plan participants. Pension Plan Assets and Investment Policy The weighted average asset allocations of the Pension Plan at December 31, 2015 are as follows: Plan Assets at 2015 Asset Class: Mutual funds 39 % Fixed income securities 61 Cash equivalents and other — 100 % The Pension Plan's investment objectives reflect an overall low risk tolerance to stock market volatility. This strategy allows for the Pension Plan to invest in portfolios that would obtain a rate of return throughout economic cycles, commensurate with the investment risk and cash flow needs of the Pension Plan. The investments held in the Pension Plan are readily marketable and can be sold to fund benefit payment obligations of the plan as they become payable. Investment allocation decisions are formally made by the Altice USA Benefits Committee, which takes into account investment advice provided by its external investment consultant. The investment consultant takes into account expected long-term risk, return, correlation, and other prudent investment assumptions when recommending asset classes and investment managers to the Company's Investment and Benefit Committee. The major categories of the Pension Plan assets are cash equivalents and bonds which are marked-to-market on a daily basis. Due to the Pension Plan's significant holdings in long-term government and non-government fixed income securities, the Pension Plan's assets are subjected to interest rate risk; specifically, a rising interest rate environment. Consequently, an increase in interest rates may cause a decrease to the overall liability of the Pension Plan thus creating a hedge against rising interest rates. In addition, a portion of the Pension Plan's bond portfolio is invested in foreign debt securities where there could be foreign currency risks associated with them, as well as in non-government securities which are subject to credit risk of the bond issuer defaulting on interest and/or principal payments. Investments at Estimated Fair Value The fair values of the assets of the Pension Plan at December 31, 2015 by asset class are as follows: Asset Class Level I Level II Level III Total Mutual funds $ 117,174 $ — $ — $ 117,174 Fixed income securities held in a portfolio: Foreign issued corporate debt — 12,825 — 12,825 U.S. corporate debt — 54,005 — 54,005 Government debt — 8,273 — 8,273 U.S. Treasury securities — 90,414 — 90,414 Asset-backed securities — 18,563 — 18,563 Cash equivalents (a) 893 — — 893 Total (b) $ 118,067 $ 184,080 $ — $ 302,147 (a) Represents an investment in a money market fund. (b) Excludes cash and net payables relating to the sale of securities that were not settled as of December 31, 2015. The fair values of mutual funds and cash equivalents were derived from quoted market prices that the Pension Plan administrator has the ability to access. The fair values of corporate and government debt, treasury securities and asset-back securities were derived from bids received from a vendor or broker not available in an active market that the Pension Plan administrator has the ability to access. Defined Contribution Plans The Company also maintains the Cablevision 401(k) Savings Plan, a contributory qualified defined contribution plan for the benefit of non-union employees of the Company. Employees can contribute a percentage of eligible annual compensation and the Company will make a matching cash contribution or discretionary contribution, as defined in the plan. In addition, the Company maintains an unfunded non-qualified excess savings plan for which the Company provides a matching contribution similar to the Cablevision 401(k) Savings Plan. Applicable employees of the Company are eligible for an enhanced employer matching contribution, as well as a year-end employer discretionary contribution to the Cablevision 401(k) Savings Plan and the Cablevision Excess Savings Plan. The cost associated with these plans (including the enhanced employer matching and discretionary contributions) was $26,964 and $61,343 for the period January 1, 2016 through June 20, 2016, and year ended December 31, 2015, respectively.

CVC - EQUITY AND LONG-TERM INCE

CVC - EQUITY AND LONG-TERM INCENTIVE PLANS	12 Months Ended
	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
SHARE BASED COMPENSATION	SHARE BASED COMPENSATION Carry Unit Plan Certain employees of the Company and its affiliates received awards of units in a carry unit plan of Neptune Management LP, an entity which has an ownership interest in the Company. The awards generally vest as follows: 50% on the second anniversary of June 21, 2016 for Cablevision employees or December 21, 2015 for Cequel employees ("Base Date"), 25% on the third anniversary of the Base Date, and 25% on the fourth anniversary of the Base Date. Neptune Holding US GP LLC, the general partner of Neptune Management LP, has the right to repurchase (or to assign to an affiliate, including the Company, the right to repurchase) vested awards held by employees for sixty days following their termination. For performance-based awards under the plan, vesting occurs upon achievement or satisfaction of a specified performance condition. The Company considered the probability of achieving the established performance targets in determining the share-based compensation with respect to these awards at the end of each reporting period. The carry unit plan has 259,442,785 units authorized for issuance, of which 211,670,834 have been issued to employees of the Company and 11,300,000 have been issued to employees of Altice N.V. and affiliated companies as of December 31, 2017 . Beginning on the fourth anniversary of the Base Date, the holders of carry units have an annual opportunity (a sixty day period determined by the administrator of the plan) to sell their units back to Neptune Holding US GP LLC (or affiliate, including the Company, designated by Neptune Holding US GP LLC). Accordingly, the carry units are presented as temporary equity on the consolidated balance sheets at fair value. Adjustments to fair value at each reporting period are recorded in paid-in capital. The right of Neptune Holding US GP LLC to assign to an affiliate, including the Company, the right to repurchase an employee’s vested units during the sixty-day period following termination, or to satisfy its obligation to repurchase an employee’s vested units during annual 60 day periods following the fourth anniversary of the Base Date, may be exercised by Neptune Holding US GP LLC in its discretion at the time a repurchase right or obligation arises. The carry unit plan requires the purchase price payable to the employee or former employee, as the case may be, to be paid in cash, a promissory note (with a term of not more than 3 years and bearing interest at the long-term applicable federal rate under Section 1274(d) of the Internal Revenue Code) or combination thereof, in each case as determined by Neptune Holding US GP LLC in its discretion at the time of the repurchase. Neptune Holding US GP LLC expects that vested units will be redeemed for shares of the Company's Class A common stock upon vesting. The Company measures the cost of employee services received in exchange for carry units based on the fair value of the award at grant date. In addition these units are presented as temporary equity on our consolidated balance sheet at fair value. For carry unit awards granted in 2016, an option pricing model was used which requires subjective assumptions for which changes in these assumptions could materially affect the fair value of the carry units outstanding. The time to liquidity event assumption was based on management’s judgment. The equity volatility assumption was estimated using the historical weekly volatility of publicly traded comparable companies. The risk-free rate assumed was based on the U.S. Constant Maturity Treasury Rates for a period matching the expected time to liquidity event. The discount for lack of marketability was based on Finnerty's (2012) average-strike put option model. For carry unit awards granted in the first and second quarter of 2017, the Company estimated the grant date fair value based on the value established in the Company's IPO. The following table summarizes activity relating to carry units: Number of Time Vesting Awards Number of Performance Based Vesting Awards Weighted Average Grant Date Fair Value Balance, December 31, 2016 192,800,000 10,000,000 $ 0.37 Granted 28,025,000 — 3.14 Forfeited (7,854,166 ) — 0.37 Vested (44,420,833 ) — 0.41 Balance, December 31, 2017 168,550,001 10,000,000 0.71 The weighted average fair value per unit was $1.76 and $2.50 as of December 31, 2016 and December 31, 2017, respectively. For the years ended December 31, 2017 and 2016, the Company recognized an expense of $57,430 and $14,368 , respectively, related to the push down of share-based compensation related to the carry unit plan of which approximately $55,258 and $9,849 related to units granted to employees of the Company and $2,172 and $4,519 related to employees of Altice N.V. and affiliated companies allocated to the Company. Stock Option Plan In connection with the Company's IPO, the Company adopted the Altice USA 2017 Long Term Incentive Plan (the "2017 LTIP"). Under the 2017 LTIP, the Company may grant awards of options, restricted shares, restricted share units, stock appreciation rights, performance stock, performance stock units and other awards. Under the 2017 LTIP, awards may be granted to officers, employees and consultants of the Company or any of its affiliates. The 2017 LTIP will be administered by the Company's Board of Directors (the "Board"), subject to the provision of the stockholders' agreement. The Board has delegated its authority to the Company's Compensation Committee. The Compensation Committee has the full power and authority to, among other things, select eligible participants, to grant awards in accordance with the 2017 LTIP, to determine the number of shares subject to each award or the cash amount payable in connection with an award and determine the terms and conditions of each award. The maximum aggregate number of shares that may be issued under the 2017 LTIP is 9,879,291 . The Board has the authority to amend, suspend, or terminate the 2017 LTIP. No amendment, suspension or termination will be effective without the approval of the Company's stockholders if such approval is required under applicable laws, rules and regulations. On December 30, 2017, the Company granted 5,110,747 nonqualified stock options under the 2017 LTIP. The stock options were granted with an exercise price of $19.48 , equal to the 30 day volume weighted average of the closing price of Class A common stock as of the grant date. Certain nonqualified stock options ( 2,730,949 awards) will vest 100% on December 21, 2020 and 2,379,798 awards will vest 50% on the second anniversary, 25% on the third anniversary and 25% on the fourth anniversary of the date of grant, generally subject to continued employment with the Company or any of its affiliates, and expire ten years from the date of grant. The Company calculated the fair value of each option award on the date of grant using the Black-Scholes valuation model. The Company's computation of expected life was determined based on the simplified method (the average of the vesting period and option term) due to the Company's lack of recent historical data for similar awards. The interest rate for periods within the contractual life of the stock option was based on interest yields for U.S. Treasury instruments in effect at the time of grant. The Company's computation of expected volatility was based on historical volatility of its common stock and the expected volatility of comparable publicly-traded companies who granted options that had similar expected lives. The following aggregate assumptions were used to calculate the fair values of stock option awards granted on December 30, 2017: Risk-free interest rate 2.30% Expected life (in years) 6.44 Dividend yield —% Volatility 33.95% Grant date fair value $8.77
Cablevision Systems Corporation And Subsidiaries
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
SHARE BASED COMPENSATION	EQUITY AND LONG-TERM INCENTIVE PLANS Equity Plans In connection with the Merger, outstanding equity-based awards granted under the Company’s equity plans were cancelled and converted into a right to receive cash based upon the $34.90 per Share merger price in accordance with the original terms of the awards. On the Merger Date, the Company had 11,880,700 stock options, 3,769,485 restricted shares, 1,724,940 restricted stock units issued to employees and 466,283 restricted stock units issued to non-employee directors outstanding. The aggregate payment was $439,167 and represents a portion of the merger consideration. Approximately $63,484 of compensation costs related to the acceleration of the vesting of these awards in connection with the Merger and the related employer payroll taxes of $7,929 were recorded on the black line and therefore are not reflected in either the Predecessor or Successor periods. In March 2015, the Company's Board of Directors approved the Cablevision Systems Corporation 2015 Employee Stock Plan ("2015 Plan"), which was approved by Cablevision's stockholders at its annual stockholders meeting on May 21, 2015. Under the 2015 Plan, the Company was authorized to grant stock options, restricted shares, restricted stock units, stock appreciation rights, and other equity-based awards. As of December 31, 2015, 79,780 equity based awards had been granted under the 2015 Plan. The Company also had an employee stock plan ("2006 Plan") under which it was authorized to grant incentive stock options, nonqualified stock options, restricted shares, restricted stock units, stock appreciation rights and other equity-based awards and a 2006 Stock Plan for Non-Employee Directors, whereby the Company was authorized to grant nonqualified stock options, restricted stock units and other equity-based awards. In 2015, the Company granted its non-employee directors an aggregate of 73,056 restricted stock units. Total non-employee director restricted stock units outstanding as of December 31, 2015 were 466,283 . Since share-based compensation expense is based on awards that are ultimately expected to vest, such compensation expense was reduced for estimated forfeitures. Forfeitures were estimated based primarily on historical experience. The following table presents the share-based compensation expense recognized by the Company as other operating expenses: January 1, 2016 to June 20, 2016 Year ended December 31, 2015 Stock options $ 3,848 $ 9,159 Restricted shares and restricted stock units 20,930 51,162 Share-based compensation related to equity classified awards 24,778 60,321 Other share-based compensation 453 4,965 Total share-based compensation $ 25,231 $ 65,286 An income tax benefit of $10,357 and $26,718 was recognized in continuing operations resulting from share-based compensation expense for the period from January 1, 2016 through June 20, 2016 and year ended December 31, 2015, respectively. Cash received from stock option exercises for the period January 1, 2016 through June 20, 2016, and year ended December 31, 2015, respectively was $14,411 and $18,727 , respectively. Valuation Assumptions - Stock Options The Company calculated the fair value of each option award on the date of grant. The Company's computation of expected life was determined based on historical experience of similar awards, giving consideration to the contractual terms of the share-based awards and vesting schedules, or by using the simplified method (the average of the vesting period and option term), if applicable. The interest rate for periods within the contractual life of the stock option was based on interest yields for U.S. Treasury instruments in effect at the time of grant. The Company's computation of expected volatility was based on historical volatility of its common stock. The following assumptions were used to calculate the fair values of stock option awards granted in the first quarter of 2015: 2015 Risk-free interest rate 1.82 % Expected life (in years) 8 Dividend yield 3.63 % Volatility 39.98 % Grant date fair value $ 5.45 Share-Based Payment Award Activity The following table summarizes activity relating to Company employees who held Cablevision stock options for the period January 1, 2016 to June 20, 2016 and for the year ended December 31, 2015: Shares Under Option Weighted Average Exercise Price Per Share Weighted Average Remaining Contractual Term (in years) Time Vesting Options Performance Based Vesting Options Aggregate Intrinsic Value (a) Balance, December 31, 2014 5,097,666 7,633,500 $ 14.41 7.17 $ 79,347 Granted 2,000,000 — 19.17 Exercised (353,666 ) (1,024,283 ) 12.84 Balance, December 31, 2015 6,744,000 6,609,217 15.28 6.80 221,900 Exercised (744,000 ) (728,517 ) 13.97 Balance, June 20, 2016 6,000,000 5,880,700 $ 15.45 (a) The aggregate intrinsic value is calculated as the difference between (i) the exercise price of the underlying award and (ii) the quoted price of CNYG Class A common stock on December 31, 2015, as indicated. Restricted Stock Award Activity The following table summarizes activity relating to Company employees who held Cablevision restricted shares and restricted stock units for the period January 1, 2016 to June 20, 2016 and for the year ended December 31, 2015: Number of Restricted Shares Number of Performance Restricted Shares Number of Performance Based Restricted Stock Units ("PSU") (a) Weighted Average Fair Value Per Share at Date of Grant Unvested award balance, December 31, 2014 5,314,870 2,035,300 — $ 15.46 Granted 1,747,870 584,400 1,851,700 19.43 Vested (1,598,363 ) (739,600 ) — 14.48 Awards forfeited (496,629 ) — (79,270 ) 17.28 Unvested award balance, December 31, 2015 4,967,748 1,880,100 1,772,430 17.53 Vested (2,239,167 ) (753,296 ) — 15.35 Awards forfeited (85,900 ) — (47,490 ) 18.38 Unvested award balance, June 20, 2016 2,642,681 1,126,804 1,724,940 (a) The PSUs entitled the employee to shares of CNYG common stock up to 150% of the number of PSUs granted depending on the level of achievement of the specified performance criteria. If the minimum performance threshold was not met, no shares were issued. Accrued dividends were paid to the extent that a PSU vested and the related stock was issued. During the first quarter of 2016, 2,992,463 Cablevision restricted shares issued to employees of the Company vested. To fulfill the employees' statutory minimum tax withholding obligations for the applicable income and other employment taxes, 1,248,875 of these shares, with an aggregate value of $41,469 , were surrendered to the Company. During the year ended December 31, 2015, 2,337,963 Cablevision restricted shares issued to employees of the Company vested. To fulfill the employees' statutory minimum tax withholding obligations for the applicable income and other employment taxes, 1,004,950 of these shares, with an aggregate value of $19,141 were surrendered to the Company. These acquired shares had been classified as treasury stock. Long-Term Incentive Plan Awards In March 2011, the Company's Board of Directors approved the Cablevision Systems Corporation 2011 Cash Incentive Plan, which was approved by the Company's stockholders at its annual stockholders meeting in May 2011. The Company recorded expenses of $9,169 and $27,170 for the period January 1, 2016 through June 20, 2016, and year ended December 31, 2015, respectively, related to this plan. Carried Unit Plan Subsequent to the merger, in July 2016, certain employees of the Company and its affiliates received awards of units in a Carry Unit Plan of an entity which has an ownership interest in the Company’s parent, Neptune Holding. The awards generally will vest as follows: 50% on the second anniversary of June 21, 2016 (“Base Date”), 25% on the third anniversary of the Base Date, and 25% on the fourth anniversary of the Base Date. Prior to the fourth anniversary, the Company has the right to repurchase vested awards held by employees upon their termination. The Carry Unit Plan has 259,442,785 units authorized for issuance, of which 102,500,000 have been issued to employees of the Company and 100,300,000 have been issued to employees of Altice and affiliated companies.

CVC - AFFILIATE AND RELATED PAR

CVC - AFFILIATE AND RELATED PARTY TRANSACTIONS	12 Months Ended
	Dec. 31, 2017
Related Party Transaction [Line Items]
AFFILIATE AND RELATED PARTY TRANSACTIONS	AFFILIATE AND RELATED PARTY TRANSACTIONS Equity Method Investments In July 2016, the Company completed the sale of a 75% interest in Newsday LLC ("Newsday") to an employee of the Company. The Company retained the remaining 25% ownership interest. Effective July 7, 2016, the operating results of Newsday are no longer consolidated with those of the Company and the Company's 25% interest in the operating results of Newsday is recorded on the equity method. At December 31, 2017 and 2016, the Company's 25% investment in Newsday and its 25% interest in i24NEWS, Altice N.V.'s 24/7 international news and current affairs channel aggregated $(2,649) and $5,606 , respectively, and is included in investments in affiliates on our consolidated balance sheets. The operating results of Newsday and i24NEWS are recorded on the equity basis. For the years ended December 31, 2017 and 2016, the Company recorded equity in net loss of Newsday of $7,219 and $1,132 , respectively, and equity in net loss of i24NEWS of $2,821 and $0 , respectively. Affiliate and Related Party Transactions As the transactions discussed below were conducted between subsidiaries of Altice N.V. under common control and equity method investees, amounts charged for certain services may not have represented amounts that might have been received or incurred if the transactions were based upon arm's length negotiations. Altice Technical Services US Corp. ("ATS") As discussed in Note 1, in January 2018, the Company completed the ATS Acquisition and the Company expects to become the owner of 100% of the equity interests in ATS prior to the Distribution. ATS was previously owned by Altice N.V. and a member of ATS's management through a holding company. As a result of the ATS Acquisition, the Company will combine the operations of ATS with Altice USA in 2018. See Note 1 for a summary of the impact that the ATS Acquisition will have on the Company's previously reported revenue, operating expenses and operating income. ATS was formed to provide network construction and maintenance services and commercial and residential installations, disconnections, and maintenance. In the second quarter of 2017, the Company entered into an Independent Contractor Agreement with ATS that governs the terms of the services described above. The Company believes the services it receives from ATS will be of higher quality and at a lower cost than the Company could achieve without ATS, including for the construction of our new fiber-to-the home ("FTTH") network. The Company also entered into a Transition Services Agreement for the use of the Company's resources to provide various overhead functions to ATS, including accounting, legal and human resources and for the use of certain facilities, vehicles and technician tools during a transitional period that generally ended on December 31, 2017, although the term can be extended on a service-by-service basis. The Transition Services Agreement requires ATS to reimburse the Company for its cost to provide such services. During the second quarter of 2017, a substantial portion of the Company's technical workforce at the Cablevision segment either accepted employment with ATS or became employees of ATS and ATS commenced operations and began to perform services for the Company. A substantial portion of the Cequel segment technical workforce became employees of ATS in December 2017. For the year ended December 31, 2017, the Company's operating results reflect a reduction in employee related expenses due to certain employees becoming employed by ATS and an increase in contractor costs for services provided by ATS. From the formation of ATS and up until an equity contribution was made by its parent in June 2017, ATS met the definition of a variable interest entity in accordance with ASC 810-10-15-14. The Company evaluated whether its arrangement under the terms of the Independent Contractor Agreement is a variable interest, whether the Company is the primary beneficiary and whether the Company should consolidate ATS. The Company concluded that it is not the primary beneficiary of ATS because ATS is controlled by its parent, which in turn is controlled by Altice N.V. who has the power to direct the most significant activities of ATS. As of December 31, 2017 , the Company had a prepayment balance of $19,563 to ATS which is reflected in prepaid expenses and other current assets and $6,539 which is reflected in other long-term assets on the Company's balance sheet. The Company reduced goodwill to reflect the preliminary estimate of the historical value of the goodwill associated with the transfer to ATS described above of $23,101 , that has been recorded as a reduction to stockholders' equity. The following table summarizes the revenue and charges related to services provided to or received from subsidiaries of Altice N.V. and Newsday: Years Ended December 31, 2017 2016 Revenue $ 2,205 $ 1,086 Operating expenses: Programming and other direct costs $ (4,176 ) $ (1,947 ) Other operating expenses, net (106,084 ) (18,854 ) Operating expenses, net (110,260 ) (20,801 ) Interest expense (see Note 9)(a) (90,405 ) (112,712 ) Loss on extinguishment of debt and write-off of deferred financing costs (see Note 9) (513,723 ) — Net charges $ (712,183 ) $ (132,427 ) Capital Expenditures $ 133,918 $ 45,886 (a) The 2016 amount includes $10,155 related to Holdco Notes prior to the exchange in addition to the interest related to notes payable to affiliates and related parties discussed in Note 9. Revenue The Company recognized revenue in connection with the sale of pay television, broadband and telephony services to ATS and the sale of advertising to Newsday. Programming and other direct costs Programming and other direct costs include costs incurred by the Company for the transport and termination of voice and data services provided by a subsidiary of Altice N.V. Other operating expenses Other operating expenses include charges of $72,944 from ATS for the year ended December 31, 2017, pursuant to the Independent Contractor Agreement, net of charges to ATS pursuant to the TSA, discussed above. Altice N.V. provides certain executive services, as well as consulting, advisory and other services, including, prior to the IPO, CEO, CFO and COO services, to the Company. Compensation under the terms of the agreement is an annual fee of $30,000 to be paid by the Company. Fees associated with this agreement recorded by the Company amounted to approximately $30,000 and $20,556 , for the years ended December 31, 2017 and 2016, respectively. As of June 20, 2017, the CEO, CFO and COO became employees of the Company and the agreement was assigned to Altice N.V. by a subsidiary of Altice N.V. This agreement will be terminated upon the completion of the Distribution discussed in Note 1. Other operating expenses also include charges for services provided by other subsidiaries of Altice N.V. aggregating $4,057 and $887 , respectively, net of a credit of $917 and $2,589 related to transition services provided to Newsday for the year ended December 31, 2017 and 2016, respectively. Capital Expenditures Capital expenditures for the year ended December 31, 2017 include $111,906 (including advance payments related to the FTTH project of $16,363 ) for installation and construction activities performed by ATS, $17,434 of equipment purchased from Altice Labs S.A., $4,578 of software development services, that were capitalized, from Altice Management International and other Altice N.V. subsidiaries. Capital expenditures for the year ended December 31, 2016 include $44,121 of equipment purchased from Altice Management International and $1,025 from another Altice N.V. subsidiary. In addition, the Company acquired certain software development services that were capitalized from Altice Labs S.A. aggregating $740 . Aggregate amounts that were due from and due to related parties are summarized below: December 31, 2017 2016 Due from: Altice US Finance S.A. (a) $ 12,951 $ 12,951 Newsday (b) 2,713 6,114 Altice Management Americas (b) 33 3,117 i24NEWS (b) 4,036 — Other Altice N.V. subsidiaries (b) 1,623 — $ 21,356 $ 22,182 Due to: CVC 3BV (c) $ — $ 71,655 Neptune Holdings US LP (c) — 7,962 Altice Management International (d) — 44,121 ATS (b)(e) 2,948 — Newsday (b) 33 275 Altice Labs S.A. (d) 7,354 866 Other Altice N.V. subsidiaries (f) 3,611 2,484 $ 13,946 $ 127,363 (a) Represents interest on senior notes paid by the Company on behalf of the affiliate. (b) Represents amounts paid by the Company on behalf of the respective related party and for Newsday and ATS, the net amounts due from the related party also include charges for certain transition services provided. (c) Represents distributions payable to stockholders. (d) Amounts payable as of December 31, 2016 primarily represent amounts due for equipment purchases and/or software development services discussed above. (e) Represents amounts due to ATS for construction, maintenance, and installation services, net of charges to ATS pursuant to the TSA. See discussion above. (f) Represents amounts due to affiliates for services provided to the Company. The table above does not include notes payable to affiliates and related parties of $1,750,000 and the related accrued interest of $102,557 as of December 31, 2016 , respectively, which is reflected in accrued interest in the Company's balance sheet. See discussion in Note 9. In the second quarter of 2017, prior to the Company's IPO, the Company declared and paid cash distributions aggregating $839,700 to stockholders, $500,000 of which were funded with proceeds from borrowings under CSC Holdings' revolving credit facility. In 2016, the Company declared cash distributions of $445,176 , of which $365,559 were paid in 2016 and $79,617 were paid in the first quarter of 2017.
Cablevision Systems Corporation And Subsidiaries
Related Party Transaction [Line Items]
AFFILIATE AND RELATED PARTY TRANSACTIONS	AFFILIATE AND RELATED PARTY TRANSACTIONS Equity Method Investments In September 2015, the Company purchased the minority interest in Newsday Holdings LLC ("Newsday Holdings") held by Tribune Media Company ("Tribune") for approximately $8,300 . As a result of this transaction, Newsday Holdings became a wholly-owned subsidiary of the Company. In addition, the indemnity provided by the Company to Tribune for certain taxes incurred by Tribune if Newsday Holdings or its subsidiary sold or otherwise disposed of Newsday assets in a taxable transaction or failed to maintain specified minimum outstanding indebtedness, was amended so that the restriction period lapsed on September 2, 2015. Subsequent to the Merger, in July 2016, the Company completed the sale of a 75% interest in Newsday LLC. The Company retained the remaining 25% ownership interest. In December 2016, the Company made an investment of $1,966 in i24NEWS, Altice’s 24/7 international news and current affairs channel, representing a 25% ownership interest and the 75% interest is owned by a subsidiary of Altice. Related Party Transactions As the transactions discussed below were conducted between subsidiaries under common control, amounts charged for certain services may not have represented amounts that might have been received or incurred if the transactions were based upon arm's length negotiations. Cablevision is controlled by Charles F. Dolan, certain members of his immediate family and certain family related entities (collectively the “Dolan Family”). Members of the Dolan Family are also the controlling stockholders of AMC Networks, The Madison Square Garden Company and MSG Networks Inc. ("MSG Networks"). The following table summarizes the revenue and charges (credits) related to services provided to or received from AMC Networks, Madison Square Garden Company and MSG Networks for the Predecessor periods: January 1, 2016 to June 20, 2016 Year Ended December 31, 2015 Revenue $ 2,088 $ 5,343 Operating expenses: Programming and other direct costs, net of credits $ 84,636 $ 176,909 Other operating expenses, net of credits 2,182 5,372 Operating expenses, net 86,818 182,281 Net charges $ 84,730 $ 176,938 Revenue The Company recognized revenue in connection with television advertisements and print advertising, as well as certain telecommunication services charged by its subsidiaries to AMC Networks, Madison Square Garden and MSG Networks. The Company and its subsidiaries, together with AMC Networks, Madison Square Garden and MSG Networks may have entered into agreements with third parties in which the amounts paid/received by AMC Networks, Madison Square Garden and MSG Networks, their subsidiaries, or the Company may have differed from the amounts that would have been paid/received if such arrangements were negotiated separately. Where subsidiaries of the Company have incurred a cost incremental to fair value and AMC Networks, Madison Square Garden and MSG Networks have received a benefit incremental to fair value from these negotiations, the Company and its subsidiaries charged AMC Networks, Madison Square Garden and MSG Networks for the incremental amount. Programming and other direct costs Programming and other direct costs included costs incurred by the Company for the carriage of the MSG Networks, as well as for AMC, WE tv, IFC, Sundance Channel and BBC America (2015 period only) on the Company's cable systems. The Company also purchased certain programming signal transmission and production services from AMC Networks. Other operating expenses (credits) The Company, AMC Networks, Madison Square Garden and MSG Networks routinely entered into transactions with each other in the ordinary course of business. Such transactions included, but were not limited to, sponsorship agreements and cross-promotion arrangements. Additionally, amounts reflected in the tables were net of allocations to AMC Networks, Madison Square Garden and MSG Networks for services performed by the Company on their behalf. Amounts also included charges to the Company for services performed or paid by the affiliate on the Company's behalf. Subsequent to the Merger, the Company continues to receive or provide services to these entities, but these entities are no longer related parties. Transactions with Other Affiliates During the period ended January 1, 2016 to June 20, 2016 and the year ended December 31, 2015, the Company provided services to or incurred costs on behalf of certain related parties, including from time to time, the Dolan Family. All costs incurred on behalf of these related parties were reimbursed to the Company. Aggregate amounts that were due from and due to AMC Networks, Madison Square Garden and MSG Networks and other affiliates at December 31, 2015 (Predecessor) is summarized below: December 31, 2015 Amounts due from affiliates $ 767 Amounts due to affiliates 29,729

CVC - COMMITMENTS AND CONTINGEN

CVC - COMMITMENTS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2017
Unrecorded Unconditional Purchase Obligation [Line Items]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Commitments Future cash payments and commitments required under arrangements pursuant to contracts entered into by the Company in the normal course of business as of December 31, 2017 are as follows: Payments Due by Period Total Year 1 Years 2-3 Years 4-5 More than 5 years Off balance sheet arrangements: Purchase obligations (a) $ 8,423,735 $ 3,071,514 $ 4,179,616 $ 1,092,786 $ 79,819 Guarantees (b) 36,224 34,716 1,508 — — Letters of credit (c) 129,473 200 120 129,153 — Total $ 8,589,432 $ 3,106,430 $ 4,181,244 $ 1,221,939 $ 79,819 (a) Purchase obligations primarily include contractual commitments with various programming vendors to provide video services to customers and minimum purchase obligations to purchase goods or services. Future fees payable under contracts with programming vendors are based on numerous factors, including the number of customers receiving the programming. Amounts reflected above related to programming agreements are based on the number of customers receiving the programming as of December 31, 2017 multiplied by the per customer rates or the stated annual fee, as applicable, contained in the executed agreements in effect as of December 31, 2017 . (b) Includes franchise and performance surety bonds primarily for the Company's cable television systems. (c) Represent letters of credit guaranteeing performance to municipalities and public utilities and payment of insurance premiums. Payments due by period for these arrangements represent the year in which the commitment expires although payments under these arrangements are required only in the event of nonperformance. The table above does not include obligations for payments required to be made under multi-year franchise agreements based on a percentage of revenues generated from video service per year. Many of the Company's franchise agreements and utility pole leases require the Company to remove its cable wires and other equipment upon termination of the respective agreements. The Company has concluded that the fair value of these asset retirement obligations cannot be reasonably estimated since the range of potential settlement dates is not determinable. Legal Matters Following expiration of the affiliation agreements for carriage of certain Fox broadcast stations and cable networks on October 16, 2010, News Corporation terminated delivery of the programming feeds to Cablevision, and as a result, those stations and networks were unavailable on Cablevision's cable television systems. On October 30, 2010, Cablevision and Fox reached an agreement on new affiliation agreements for these stations and networks, and carriage was restored. Several purported class action lawsuits alleging breach of contract, unjust enrichment, and consumer fraud and seeking unspecified compensatory damages, punitive damages and attorneys' fees were subsequently filed on behalf of Cablevision's customers seeking recovery for the lack of Fox programming. Those lawsuits were consolidated in an action before the U. S. District Court for the Eastern District of New York, and a consolidated complaint was filed in that court on February 22, 2011. On March 28, 2012, in ruling on Cablevision's motion to dismiss, the Court dismissed all of plaintiffs’ claims, except for breach of contract. On March 30, 2014, the Court granted plaintiffs’ motion for class certification. The parties have entered into a settlement agreement. The Court granted preliminary approval of the settlement agreement on January 8, 2018, and set a hearing for final approval on May 17, 2018. As of December 31, 2016, the Company had an estimated liability associated with a potential settlement totaling $5,200 . During the year ended December 31, 2017 , the Company recorded an additional liability of $800 . The amount ultimately paid in connection with the proposed settlement could exceed the amount recorded. In October 2015, the New York Attorney General began an investigation into whether the major Internet Service Providers in New York State deliver advertised Internet speeds. The Company is cooperating with this investigation and is currently in discussions with the New York Attorney General about resolving the investigation as to the Company, which resolution may involve operational and/or financial components. While the Company is unable to predict the outcome of the investigation or these discussions, at this time it does not expect that the outcome will have a material adverse effect on its operations, financial conditions or cash flows. The Company receives notices from third parties and, in some cases, is named as a defendant in certain lawsuits claiming infringement of various patents relating to various aspects of the Company's businesses. In certain of these cases other industry participants are also defendants. In certain of these cases the Company expects that any potential liability would be the responsibility of the Company's equipment vendors pursuant to applicable contractual indemnification provisions. The Company believes that the claims are without merit and intends to defend the actions vigorously, but is unable to predict the outcome of these matters or reasonably estimate a range of possible loss. In addition to the matters discussed above, the Company is party to various lawsuits, some involving claims for substantial damages. Although the outcome of these other matters cannot be predicted and the impact of the final resolution of these other matters on the Company's results of operations in a particular subsequent reporting period is not known, management does not believe that the resolution of these other lawsuits will have a material adverse effect on the financial position of the Company or the ability of the Company to meet its financial obligations as they become due.
Cablevision Systems Corporation And Subsidiaries
Unrecorded Unconditional Purchase Obligation [Line Items]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Legal Matters Cable Operations Litigation Marchese, et al. v. Cablevision Systems Corporation and CSC Holdings, LLC: The Company is a defendant in a lawsuit filed in the U.S. District Court for the District of New Jersey by several present and former Cablevision subscribers, purportedly on behalf of a class of iO video subscribers in New Jersey, Connecticut and New York. After three versions of the complaint were dismissed without prejudice by the District Court, plaintiffs filed their third amended complaint on August 22, 2011, alleging that the Company violated Section 1 of the Sherman Antitrust Act by allegedly tying the sale of interactive services offered as part of iO television packages to the rental and use of set-top boxes distributed by Cablevision, and violated Section 2 of the Sherman Antitrust Act by allegedly seeking to monopolize the distribution of Cablevision compatible set-top boxes. Plaintiffs seek unspecified treble monetary damages, attorney's fees, as well as injunctive and declaratory relief. On September 23, 2011, the Company filed a motion to dismiss the third amended complaint. On January 10, 2012, the District Court issued a decision dismissing with prejudice the Section 2 monopolization claim, but allowing the Section 1 tying claim and related state common law claims to proceed. Cablevision's answer to the third amended complaint was filed on February 13, 2012. On December 7, 2015, the parties entered into a settlement agreement, which is subject to approval by the Court. On December 11, 2015, plaintiffs filed a motion for preliminary approval of the settlement, conditional certification of the settlement class, and approval of a class notice distribution plan. On March 10, 2016 the Court granted preliminary approval of the settlement and approved the class notice distribution plan. Subsequent to the Merger, the class notice distribution and the claims submission process have now concluded. The Court granted final approval of the settlement on September 12, 2016 in the amount of $15,600 , and the effective date of the settlement was October 24, 2016. In re Cablevision Consumer Litigation: Following expiration of the affiliation agreements for carriage of certain Fox broadcast stations and cable networks on October 16, 2010, News Corporation terminated delivery of the programming feeds to the Company, and as a result, those stations and networks were unavailable on the Company's cable television systems. On October 30, 2010, the Company and Fox reached an agreement on new affiliation agreements for these stations and networks, and carriage was restored. Several purported class action lawsuits were subsequently filed on behalf of the Company's customers seeking recovery for the lack of Fox programming. Those lawsuits were consolidated in an action before the U. S. District Court for the Eastern District of New York, and a consolidated complaint was filed in that court on February 22, 2011. Plaintiffs asserted claims for breach of contract, unjust enrichment, and consumer fraud, seeking unspecified compensatory damages, punitive damages and attorneys' fees. On March 28, 2012, the Court ruled on the Company's motion to dismiss, denying the motion with regard to plaintiffs' breach of contract claim, but granting it with regard to the remaining claims, which were dismissed. On April 16, 2012, plaintiffs filed a second consolidated amended complaint, which asserts a claim only for breach of contract. The Company's answer was filed on May 2, 2012. On October 10, 2012, plaintiffs filed a motion for class certification and on December 13, 2012, a motion for partial summary judgment. On March 31, 2014, the Court granted plaintiffs' motion for class certification, and denied without prejudice plaintiffs' motion for summary judgment. On May 30, 2014, the Court approved the form of class notice, and on October 7, 2014, approved the class notice distribution plan. The class notice distribution has been completed, and the opt-out period expired on February 27, 2015. Expert discovery commenced on May 5, 2014, and concluded on December 8 and 28, 2015, when the Court ruled on the pending expert discovery motions. On January 26, 2016, the Court approved a schedule for filing of summary judgment motions. Plaintiffs filed a motion for summary judgment on March 31, 2016. The Company filed its own summary judgment motion on June 13, 2016. The parties are actively engaged in settlement discussions although financial terms have not yet been finalized. Patent Litigation Cablevision is named as a defendant in certain lawsuits claiming infringement of various patents relating to various aspects of the Company's businesses. In certain of these cases other industry participants are also defendants. In certain of these cases the Company expects that any potential liability would be the responsibility of the Company's equipment vendors pursuant to applicable contractual indemnification provisions. The Company believes that the claims are without merit and intends to defend the actions vigorously, but is unable to predict the outcome of these lawsuits or reasonably estimate a range of possible loss. In addition to the matters discussed above, the Company is party to various lawsuits, some involving claims for substantial damages. Although the outcome of these other matters cannot be predicted and the impact of the final resolution of these other matters on the Company's results of operations in a particular subsequent reporting period is not known, management does not believe that the resolution of these other lawsuits will have a material adverse effect on the financial position of the Company or the ability of the Company to meet its financial obligations as they become due. Other Litigation In April 2011, Thomas C. Dolan, a director and Executive Vice President, Strategy and Development, in the Office of the Chairman at Cablevision, filed a lawsuit against Cablevision and Rainbow Media Holdings LLC (which was subsequently dismissed as a party) in New York State Supreme Court. The lawsuit raised compensation-related claims related to events largely from 2005 to 2008. The matter was handled under the direction of an independent committee of the Board of Directors of Cablevision. In April 2015, the Court granted summary judgment in favor of the plaintiff on liability, with damages to be determined. On June 18, 2015, the Company filed a notice of appeal. On February 8, 2016, Cablevision and Thomas C. Dolan entered into a settlement pursuant to which the Company agreed to pay plaintiff $21,000 and plaintiff released all claims. A stipulation of dismissal with prejudice was approved and entered by the Court on February 8, 2016, and payment was made the same day. The appeal has also been withdrawn. The Company recorded an expense of $21,000 which is reflected in discontinued operations in the accompanying consolidated statements of operations for the year ended December 31, 2015 (see Note 6).

CVC - INTERIM FINANCIAL INFORMA

CVC - INTERIM FINANCIAL INFORMATION (Unaudited)	12 Months Ended
	Dec. 31, 2017
Selected Quarterly Financial Information
INTERIM FINANCIAL INFORMATION (Unaudited)	INTERIM FINANCIAL INFORMATION (Unaudited) The following is a summary of the Company's selected quarterly financial data for the years ended December 31, 2017 and 2016: March 31, 2017 June 30, 2017 September 30, 2017 December 31, 2017 (a) Total 2017 Revenues, net $ 2,305,676 $ 2,328,341 $ 2,327,175 $ 2,365,378 $ 9,326,570 Operating expenses (2,057,442 ) (2,071,559 ) (2,192,311 ) (2,139,874 ) (8,461,186 ) Operating income $ 248,234 $ 256,782 $ 134,864 $ 225,504 $ 865,384 Net income (loss) $ (76,188 ) $ (474,790 ) $ (182,086 ) $ 2,254,682 $ 1,521,618 Net income attributable to noncontrolling interests (237 ) (365 ) (135 ) (850 ) (1,587 ) Net income (loss) attributable to Altice USA Inc.'s stockholders $ (76,425 ) $ (475,155 ) $ (182,221 ) $ 2,253,832 $ 1,520,031 Basic and diluted net income (loss) per share attributable to Altice USA Inc.'s stockholders $ (0.12 ) $ (0.72 ) $ (0.25 ) $ 3.06 $ 2.18 (a) Pursuant to the enactment of the Tax Reform on December 22, 2017, the Company recorded a noncash deferred tax benefit of $2,337,900 to remeasure the net deferred tax liability to adjust for the reduction in the corporate federal income tax rate 35% to 21% which is effective on January 1, 2018. March 31, 2016 June 30, 2016 September 30, 2016 December 31, 2016 Total 2016 Revenues, net $ 627,589 $ 823,501 $ 2,260,221 $ 2,305,901 $ 6,017,212 Operating expenses (573,329 ) (778,098 ) (2,117,442 ) (2,088,677 ) (5,557,546 ) Operating income $ 54,260 $ 45,403 $ 142,779 $ 217,224 $ 459,666 Net loss $ (140,748 ) $ (282,129 ) $ (172,553 ) $ (236,049 ) $ (831,479 ) Net loss (income) attributable to noncontrolling interests — 364 (256 ) (659 ) (551 ) Net loss attributable to Altice USA, Inc. stockholders $ (140,748 ) $ (281,765 ) $ (172,809 ) $ (236,708 ) $ (832,030 ) Basic and diluted net loss per share attributable to Altice USA Inc.'s stockholders $ (0.22 ) $ (0.43 ) $ (0.27 ) $ (0.36 ) $ (1.28 ) The Company’s previously reported statements of cash flows for the three months ended March 31, 2017, the six months ended June 30, 2017 and the nine months ended September 30, 2017 reflected distributions to stockholders of $79,617 in cash provided by operating activities. These distributions should have been reflected in financing activities.
Cablevision Systems Corporation And Subsidiaries
Selected Quarterly Financial Information
INTERIM FINANCIAL INFORMATION (Unaudited)	INTERIM FINANCIAL INFORMATION (Unaudited) The following is a summary of the Company's selected quarterly financial data: Predecessor 2016: March 31, 2016 April 1 to June 20, 2016 Revenue $ 1,645,890 $ 1,491,714 Operating expenses (1,394,635 ) (1,267,663 ) Operating income $ 251,255 $ 224,051 Net income $ 94,311 $ 69,201 Net loss attributable to noncontrolling interests 66 170 Net income attributable to Cablevision Systems Corporation stockholders $ 94,377 $ 69,371 Basic income per share attributable to Cablevision Systems Corporation stockholders: Income from continuing operations, net of income taxes $ 0.35 $ 0.25 Loss from discontinued operations, net of income taxes $ — $ — Net income $ 0.35 $ 0.25 Diluted income per share attributable to Cablevision Systems Corporation stockholders: Income from continuing operations, net of income taxes $ 0.34 $ 0.25 Loss from discontinued operations, net of income taxes $ — $ — Net income $ 0.34 $ 0.25 Amounts attributable to Cablevision Systems Corporation stockholders: Income from continuing operations, net of income taxes $ 94,377 $ 69,371 Loss from discontinued operations, net of income taxes — — Net income $ 94,377 $ 69,371 Predecessor 2015: March 31, 2015 June 30, 2015 September 30, 2015 December 31, 2015 Total 2015 Revenue $ 1,622,352 $ 1,661,940 $ 1,624,828 $ 1,636,425 $ 6,545,545 Operating expenses (1,398,601 ) (1,417,476 ) (1,441,712 ) (1,439,285 ) (5,697,074 ) Operating income $ 223,751 $ 244,464 $ 183,116 $ 197,140 $ 848,471 Income from continuing operations, net of income taxes $ 54,901 $ 75,676 $ 23,431 $ 33,781 $ 187,789 Income (loss) from discontinued operations, net of income taxes (10,502 ) — (406 ) (1,633 ) (12,541 ) Net income 44,399 75,676 23,025 32,148 175,248 Net loss (income) attributable to noncontrolling interests 234 (81 ) 78 (30 ) 201 Net income attributable to Cablevision Systems Corporation stockholders $ 44,633 $ 75,595 $ 23,103 $ 32,118 $ 175,449 Basic income per share attributable to Cablevision Systems Corporation stockholders: Income from continuing operations, net of income taxes $ 0.21 $ 0.28 $ 0.09 $ 0.12 $ 0.70 Income (loss) from discontinued operations, net of income taxes $ (0.04 ) $ — $ — $ (0.01 ) $ (0.05 ) Net income $ 0.17 $ 0.28 $ 0.09 $ 0.12 $ 0.65 Diluted income per share attributable to Cablevision Systems Corporation stockholders: Income from continuing operations, net of income taxes $ 0.20 $ 0.27 $ 0.08 $ 0.12 $ 0.68 Income (loss) from discontinued operations, net of income taxes $ (0.04 ) $ — $ — $ (0.01 ) $ (0.05 ) Net income $ 0.16 $ 0.27 $ 0.08 $ 0.12 $ 0.63 Amounts attributable to Cablevision Systems Corporation stockholders: Income from continuing operations, net of income taxes $ 55,135 $ 75,595 $ 23,509 $ 33,751 $ 187,990 Income (loss) from discontinued operations, net of income taxes (10,502 ) — (406 ) (1,633 ) (12,541 ) Net income $ 44,633 $ 75,595 $ 23,103 $ 32,118 $ 175,449

CVC - BUSINESS COMBINATION

CVC - BUSINESS COMBINATION	12 Months Ended
	Dec. 31, 2017
Business Acquisition [Line Items]
BUSINESS COMBINATIONS	BUSINESS COMBINATIONS Cablevision Acquisition As discussed in Note 1, the Company completed the Cablevision Acquisition on June 21, 2016 . The acquisition was accounted for as a business combination in accordance with ASC Topic 805. Accordingly, the Company recorded the fair value of the assets and liabilities assumed at the date of acquisition. The following table provides the allocation of the total purchase price of $9,958,323 to the identifiable tangible and intangible assets and liabilities of Cablevision based on their respective fair values. The remaining useful lives represent the period over which acquired tangible and intangible assets with a finite life are being depreciated or amortized. Fair Values Estimated Useful Lives Current assets $ 1,923,071 Accounts receivable 271,305 Property, plant and equipment 4,864,621 2-18 years Goodwill 5,842,172 Indefinite-lived cable television franchises 8,113,575 Indefinite-lived Customer relationships 4,850,000 8 to 18 years Trade names (a) 1,010,000 12 years Amortizable intangible assets 23,296 1-15 years Other non-current assets 748,998 Current liabilities (2,311,201 ) Long-term debt (8,355,386 ) Deferred income taxes. (6,832,773 ) Other non-current liabilities (189,355 ) Total $ 9,958,323 (a) See Note 8 for additional information regarding a change in the remaining estimated useful lives of the Company's trade names. The fair value of customer relationships and cable television franchises were valued using derivations of the "income" approach. The future expected earnings from these assets were discounted to their present value equivalent. Trade names were valued using the relief from royalty method, which is based on the present value of the royalty payments avoided as a result of the company owning the intangible asset. The basis for the valuation methods was the Company’s projections. These projections were based on management’s assumptions including among others, penetration rates for pay television, broadband, and telephony; revenue growth rates; operating margins; and capital expenditures. The assumptions are derived based on the Company’s and its peers’ historical operating performance adjusted for current and expected competitive and economic factors surrounding the cable industry. The discount rates used in the analysis are intended to reflect the risk inherent in the projected future cash flows generated by the respective intangible asset. The value is highly dependent on the achievement of the future financial results contemplated in the projections. The estimates and assumptions made in the valuation are inherently subject to significant uncertainties, many of which are beyond the Company's control, and there is no assurance that these results can be achieved. The primary assumptions for which there is a reasonable possibility of the occurrence of a variation that would have significantly affected the value include the assumptions regarding revenue growth, programming expense growth rates, the amount and timing of capital expenditures and the discount rate utilized. In establishing fair value for the vast majority of the acquired property, plant and equipment, the cost approach was utilized. The cost approach considers the amount required to replace an asset by constructing or purchasing a new asset with similar utility, then adjusts the value in consideration of physical depreciation, and functional and economic obsolescence as of the appraisal date. The cost approach relies on management’s assumptions regarding current material and labor costs required to rebuild and repurchase significant components of property, plant and equipment along with assumptions regarding the age and estimated useful lives of property, plant and equipment. The estimates of expected useful lives take into consideration the effects of contractual relationships, customer attrition, eventual development of new technologies and market competition. Long-term debt assumed was valued using quoted market prices (Level 2). The carrying value of most other assets and liabilities approximated fair value as of the acquisition date. As a result of applying business combination accounting, the Company recorded goodwill, which represented the excess of organization value over amounts assigned to the other identifiable tangible and intangible assets arising from expectations of future operational performance and cash generation. The following table presents the unaudited pro forma revenue and net loss for the period presented as if the Cablevision Acquisition had occurred on January 1, 2016: Year Ended December 31, 2016 Revenue $ 9,154,816 Net loss $ (721,257 ) The pro forma results presented above include the impact of additional amortization expense related to the identifiable intangible assets recorded in connection with the Cablevision Acquisition, additional depreciation expense related to the fair value adjustment to property, plant and equipment and the incremental interest resulting from the issuance of debt to fund the Cablevision Acquisition, net of the reversal of interest and amortization of deferred financing costs related to credit facilities that were repaid on the date of the Cablevision Acquisition and the accretion/amortization of fair value adjustments associated with the long-term debt acquired. Other Acquisitions In connection with certain acquisitions completed in the first and fourth quarters of 2017, the Company recorded amortizable intangibles of $45,000 relating to customer relationships and $9,400 relating to other amortizable intangibles. The Company recorded goodwill of $23,948 , which represents the excess of the estimated purchase price of approximately $80,000 (based on current probability of contingent consideration) over the net book value of assets acquired. These values are based on preliminary fair value information currently available, which is subject to change within the measurement period (up to one year from the acquisition date). The acquired entities are included in the Cablevision segment.
Cablevision Systems Corporation And Subsidiaries
Business Acquisition [Line Items]
BUSINESS COMBINATIONS	BUSINESS COMBINATION As discussed in Note 1, Cablevision completed the Merger on June 21, 2016. The Merger was accounted for as a business combination in accordance with ASC Topic 805. The following table provides the preliminary allocation of the total purchase price of $9,958,323 to the identifiable tangible and intangible assets and liabilities of Cablevision based on preliminary fair value information currently available, which is subject to change within the measurement period (up to one year from the acquisition date). Estimates of Fair Values (As of December 31, 2016) Estimated Useful Lives Current assets $ 1,923,071 Accounts receivable 271,305 Property, plant and equipment 4,864,621 2-18 years Goodwill 5,838,959 Indefinite-lived cable television franchises 8,113,575 Indefinite-lived Customer relationships 4,850,000 8 to 18 years Trade names 1,010,000 12 years Amortizable intangible assets 23,296 1-15 years Other non-current assets 748,998 Current liabilities (2,305,954 ) Long-term debt (8,355,386 ) Deferred income taxes. (6,834,807 ) Other non-current liabilities (189,355 ) Total $ 9,958,323 The fair value of identified intangible assets was estimated using derivations of the "income" approach. Customer relationships and cable television franchises were valued using the multiple period excess earnings method (“MPEEM”) approach. The MPEEM approach quantifies the expected earnings of an asset by isolating earnings attributable to the asset from the overall business enterprise earnings and then removing a charge for those assets that contribute to the generation of the isolated earnings. The future expected earnings are discounted to their present value equivalent. Trade names were valued using the relief from royalty method, which is based on the present value of the royalty payments avoided as a result of the company owning the intangible asset. The basis for the valuation methods was the Company’s projections. These projections were based on management’s assumptions including among others, penetration rates for video, high speed data, and voice; revenue growth rates; operating margins; and capital expenditures. The assumptions are derived based on the Company’s and its peers’ historical operating performance adjusted for current and expected competitive and economic factors surrounding the cable industry. The discount rates used in the analysis are intended to reflect the risk inherent in the projected future cash flows generated by the respective intangible asset. The value is highly dependent on the achievement of the future financial results contemplated in the projections. The estimates and assumptions made in the valuation are inherently subject to significant uncertainties, many of which are beyond the Company's control, and there is no assurance that these results can be achieved. The primary assumptions for which there is a reasonable possibility of the occurrence of a variation that would have significantly affected the value include the assumptions regarding revenue growth, programming expense growth rates, the amount and timing of capital expenditures and the discount rate utilized. In establishing fair value for the vast majority of the Company’s property, plant and equipment, the cost approach was utilized. The cost approach considers the amount required to replace an asset by constructing or purchasing a new asset with similar utility, then adjusts the value in consideration of physical depreciation, and functional and economic obsolescence as of the appraisal date. The cost approach relies on management’s assumptions regarding current material and labor costs required to rebuild and repurchase significant components of our property, plant and equipment along with assumptions regarding the age and estimated useful lives of our property, plant and equipment. The estimates of expected useful lives take into consideration the effects of contractual relationships, customer attrition, eventual development of new technologies and market competition. As a result of applying business combination accounting, the Company recorded goodwill, which represented the excess of organization value over amounts assigned to the other identifiable tangible and intangible assets arising from expectations of future operational performance and cash generation. The following table sets forth the estimated amortization expense on the intangible assets recorded in the connection with the Merger for the years ending December 31: Estimated amortization expense Year Ending December 31, 2017 $ 701,908 Year Ending December 31, 2018 655,409 Year Ending December 31, 2019 609,245 Year Ending December 31, 2020 562,613 Year Ending December 31, 2021 515,430 The unaudited pro forma revenue, loss from continuing operations and net loss for the years ended December 31, 2015, as if the Merger had occurred on January 1, 2015, are as follows: Revenue $ 6,545,545 Loss from continuing operations $ (740,115 ) Net loss $ (752,656 ) The pro forma results presented above include the impact of additional interest expense related to the debt issued to finance the Merger. The pro forma results also reflect additional amortization expense related to the identifiable intangible assets recorded in connection with the Merger and additional depreciation expense related to the fair value adjustment to property, plant and equipment.

SUMMARY OF SIGNIFICANT ACCOUN56

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Revenue Recognition	Revenue Recognition The Company recognizes pay television, broadband, and telephony services revenues as the services are provided to customers. Revenue received from customers who purchase bundled services at a discounted rate is allocated to each product in a pro-rata manner based on the individual product’s selling price (generally, the price at which the product is regularly sold on a standalone basis). Installation revenue for the Company's pay television, broadband and telephony services is recognized as installations are completed, as direct selling costs have exceeded this revenue in all periods reported. Advertising revenues are recognized when commercials are aired. Revenues derived from other sources are recognized when services are provided or events occur.
Multiple Element Transactions	Multiple-Element Transactions In the normal course of business, the Company may enter into multiple-element transactions where it is simultaneously both a customer and a vendor with the same counterparty or in which it purchases multiple products and/or services, or settles outstanding items contemporaneously with the purchase of a product or service, from a single counterparty. The Company's policy for accounting for each transaction negotiated contemporaneously is to record each deliverable of the transaction based on its best estimate of selling price in a manner consistent with that used to determine the price to sell each deliverable on a standalone basis. In determining the fair value of the respective deliverable, the Company will utilize quoted market prices (as available), historical transactions or comparable transactions.
Gross Versus Net Revenue Recognition	Gross Versus Net Revenue Recognition In the normal course of business, the Company is assessed non-income related taxes by governmental authorities, including franchising authorities (generally under multi-year agreements), and collects such taxes from its customers. The Company's policy is that, in instances where the tax is being assessed directly on the Company, amounts paid to the governmental authorities and amounts received from the customers are recorded on a gross basis. That is, amounts paid to the governmental authorities are recorded as programming and other direct costs and amounts received from the customer are recorded as revenue.
Programming Costs	Technical and Operating Expenses Costs of revenue related to sales of services are classified as "programming and other direct costs" in the accompanying consolidated statements of operations. Programming Costs Programming expenses related to the Company's pay television service represent fees paid to programming distributors to license the programming distributed to customers. This programming is acquired generally under multi-year distribution agreements, with rates usually based on the number of customers that receive the programming. If there are periods when an existing distribution agreement has expired and the parties have not finalized negotiations of either a renewal of that agreement or a new agreement for certain periods of time, the Company continues to carry and pay for these services until execution of definitive replacement agreements or renewals. The amount of programming expense recorded during the interim period is based on the Company's estimates of the ultimate contractual agreement expected to be reached, which is based on several factors, including previous contractual rates, customary rate increases and the current status of negotiations. Such estimates are adjusted as negotiations progress until new programming terms are finalized. In addition, the Company has received, or may receive, incentives from programming distributors for carriage of the distributors' programming. The Company generally recognizes these incentives as a reduction of programming costs in "programming and other direct costs", generally over the term of the distribution agreement.
Advertising Expenses	Advertising Expenses Advertising costs are charged to expense when incurred and are reflected in "other operating expenses" in the accompanying consolidated statements of operations.
Share-based Compensation	Share-Based Compensation Share-based compensation expense is based on the fair value of the portion of share-based payment awards that are ultimately expected to vest. Share-based compensation cost relates to awards of units in a carried unit plan and options. For carried interest units, the Company measures share-based compensation cost at the grant date fair value and recognizes the expense over the requisite service period or when it is probable any related performance condition will be met. For carried interest units with graded vesting requirement, compensation cost is recognized on an accelerated method under the graded vesting method over the requisite service period for the carried interest unit. Carried interest units that vest entirely at the end of the vesting requirement are expensed on a straight-line basis. The Company estimated the fair value of carried interest units using an option pricing model. Key inputs that were used in applying the option pricing method were total equity value, equity volatility, risk free rate and time to liquidity event. The estimate of total equity value was determined using a combination of the income approach, which incorporated cash flow projections that were discounted at an appropriate rate, and the market approach, which involved applying a market multiple to the Company’s projected operating results. The Company estimated volatility based on the historical equity volatility of comparable publicly-traded companies. Subsequent to the IPO, such subjective valuations and estimates were no longer necessary as the Company relied on the market price of the Company’s common stock to determine the fair value of share-based compensation awards. See Note 13 to the consolidated financial statements for additional information about our share-based compensation. For stock option awards, the Company recognizes compensation expense based on the estimated grant date fair value using the Black-Scholes valuation model. For options not subject to performance based vesting conditions, the Company recognizes the compensation expense using a straight-line amortization method.
Income Taxes	Income Taxes The Company's provision for income taxes is based on current period income, changes in deferred tax assets and liabilities and changes in estimates with regard to uncertain tax positions. Deferred tax assets are subject to an ongoing assessment of realizability. The Company provides deferred taxes for the outside basis difference of its investment in partnerships.
Cash and Cash Equivalents	Cash and Cash Equivalents The Company's cash investments are placed with money market funds and financial institutions that are investment grade as rated by Standard & Poor's and Moody's Investors Service. The Company selects money market funds that predominantly invest in marketable, direct obligations issued or guaranteed by the United States government or its agencies, commercial paper, fully collateralized repurchase agreements, certificates of deposit, and time deposits. The Company considers the balance of its investment in funds that substantially hold securities that mature within three months or less from the date the fund purchases these securities to be cash equivalents. The carrying amount of cash and cash equivalents either approximates fair value due to the short-term maturity of these instruments or are at fair value.
Accounts Receivable	Accounts Receivable Accounts receivable are recorded at net realizable value. The Company periodically assesses the adequacy of valuation allowances for uncollectible accounts receivable by evaluating the collectability of outstanding receivables and general factors such as historical collection experience, length of time individual receivables are past due, and the economic and competitive environment.
Investments	Investments Investment securities and investment securities pledged as collateral are classified as trading securities and are stated at fair value with realized and unrealized holding gains and losses included in net income.
Long-Lived Assets and Amortizable Intangible Assets - Property, Plant, and Equipment	The Company reviews its long-lived assets (property, plant and equipment, and intangible assets subject to amortization that arose from acquisitions) for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the expected cash flows, undiscounted and without interest, is less than the carrying amount of the asset, an impairment loss is recognized as the amount by which the carrying amount of the asset exceeds its fair value Long-Lived Assets and Amortizable Intangible Assets Property, plant and equipment, including construction materials, are carried at cost, and include all direct costs and certain indirect costs associated with the construction of cable systems, and the costs of new equipment installations. Equipment under capital leases is recorded at the present value of the total minimum lease payments. Depreciation on equipment is calculated on the straight-line basis over the estimated useful lives of the assets or, with respect to equipment under capital leases and leasehold improvements, amortized over the shorter of the lease term or the assets' useful lives and reported in depreciation and amortization (including impairments) in the consolidated statements of operations. The Company capitalizes certain internal and external costs incurred to acquire or develop internal-use software. Capitalized software costs are amortized over the estimated useful life of the software and reported in depreciation and amortization.
Amortizable Intangible Assets	Customer relationships, trade names and other intangibles established in connection with acquisitions that are finite-lived are amortized in a manner that reflects the pattern in which the projected net cash inflows to the Company are expected to occur, such as the sum of the years' digits method, or when such pattern does not exist, using the straight-line basis over their respective estimated useful lives. The Company reviews its long-lived assets (property, plant and equipment, and intangible assets subject to amortization that arose from acquisitions) for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the expected cash flows, undiscounted and without interest, is less than the carrying amount of the asset, an impairment loss is recognized as the amount by which the carrying amount of the asset exceeds its fair value.
Goodwill and Indefinite-Lived Intangible Assets	Goodwill and Indefinite-Lived Intangible Assets Goodwill and the value of franchises acquired in purchase business combinations which have indefinite useful lives are not amortized. Rather, such assets are tested for impairment annually or upon the occurrence of a triggering event. The Company assesses qualitative factors for its reporting units that carry goodwill. If the qualitative assessment results in a conclusion that it is more likely than not that the fair value of a reporting unit exceeds the carrying value, then no further testing is performed for that reporting unit. When the qualitative assessment is not used, or if the qualitative assessment is not conclusive and it is necessary to calculate the fair value of a reporting unit, then the impairment analysis for goodwill is performed at the reporting unit level using a two-step approach. The first step of the goodwill impairment test is used to identify potential impairment by comparing the fair value of the reporting unit with its carrying amount, including goodwill utilizing an enterprise-value based premise approach. If the carrying amount of the reporting unit exceeds its fair value, the second step of the goodwill impairment test is performed to measure the amount of goodwill impairment loss, if any. The second step of the goodwill impairment test compares the implied fair value of the reporting unit's goodwill with the carrying amount of that goodwill. If the carrying amount of the reporting unit's goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. The implied fair value of goodwill is determined in the same manner as the amount of goodwill which would be recognized in a business combination. The Company assesses qualitative factors to determine whether it is necessary to perform the one-step quantitative identifiable indefinite-lived intangible assets impairment test. This quantitative test is required only if the Company concludes that it is more likely than not that a unit of accounting’s fair value is less than its carrying amount. When the qualitative assessment is not used, or if the qualitative assessment is not conclusive, the impairment test for other intangible assets not subject to amortization requires a comparison of the fair value of the intangible asset with its carrying value. If the carrying value of the indefinite-lived intangible asset exceeds its fair value, an impairment loss is recognized in an amount equal to that excess.
Deferred Financing Costs	Deferred Financing Costs Deferred financing costs are being amortized to interest expense using the effective interest method over the terms of the related debt.
Derivative Financial Instruments	Derivative Financial Instruments The Company accounts for derivative financial instruments as either assets or liabilities measured at fair value. The Company uses derivative instruments to manage its exposure to market risks from changes in certain equity prices and interest rates and does not hold or issue derivative instruments for speculative or trading purposes. These derivative instruments are not designated as hedges, and changes in the fair values of these derivatives are recognized in the statements of operations as gains (losses) on derivative contracts.
Commitments and Contingencies	Commitments and Contingencies Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when the Company believes it is probable that a liability has been incurred and the amount of the contingency can be reasonably estimated.
Recently Adopted Accounting Pronouncements and Recently Issued But Not Yet Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncement In March 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-09, Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which provides simplification of income tax accounting for share-based payment awards. The new guidance became effective for the Company on January 1, 2017. Amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures, and intrinsic value were applied using the modified retrospective transition method. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term were applied prospectively. The Company elected to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using the prospective transition method. In connection with the adoption on January 1, 2017, a deferred tax asset of approximately $310,771 for previously unrealized excess tax benefits was recognized with the offset recorded to accumulated deficit. Recently Issued But Not Yet Adopted Accounting Pronouncements In February 2018, the FASB issued ASU No. 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220) Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The primary provision of ASU No. 2018-02 allows for the reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. ASU 2018-02 also requires certain disclosures about stranded tax effects. ASU No. 2018‑02 is effective for the Company on January 1, 2019, with early adoption permitted and will be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act is recognized. In May 2017, the FASB issued ASU No. 2017‑09, Compensation- Stock Compensation (Topic 718). ASU No. 2017‑09 provides clarity and guidance on which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. ASU No. 2017‑09 is effective for the Company on January 1, 2018 and will be applied prospectively. In March 2017, the FASB issued ASU No. 2017‑07 Compensation-Retirement Benefits (Topic 715). ASU No. 2017‑07 requires that an employer disaggregate the service cost component from the other components of net benefit cost. It also provides guidance on how to present the service cost component and the other components of net benefit cost in the income statement and what component of net benefit cost is eligible for capitalization. ASU No. 2017‑07 is effective for the Company on January 1, 2018 and will be applied retrospectively. In connection with the adoption of ASU 2017-07, the Company will reclassify the non-service cost components of the Company's pension expense from primarily "Other operating expenses" to "Miscellaneous income (expense), net" on its consolidated statements of operations. The Company has elected to apply the practical expedient which allows it to reclassify amounts disclosed previously in the benefits plan note (Note 17 of the consolidated financial statements) as the basis for applying retrospective presentation for comparative periods, as the Company determined it was impracticable to disaggregate the cost components for amounts capitalized and amortized in those periods. In January 2017, the FASB issued ASU No. 2017‑04, Intangibles-Goodwill and Other (Topic 350). ASU No. 2017‑04 simplifies the subsequent measurement of goodwill by removing the second step of the two‑step impairment test. The amendment requires an entity to perform its annual, or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU No. 2017‑04 becomes effective for the Company on January 1, 2020 with early adoption permitted and will be applied prospectively. In January 2017, the FASB issued ASU No. 2017‑01, Business Combinations (Topic 805), Clarifying the Definition of a Business, which amends Topic 805 to interpret the definition of a business by adding guidance to assist in evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The new guidance is effective for the Company on January 1, 2018 and will be applied prospectively. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments which clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows. ASU No. 2016-15 also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. The new guidance is effective for the Company on January 1, 2018 and will be applied retrospectively. The Company does not believe that the adoption of ASU No. 2016-15 will have a material effect on its consolidated statements of cash flows. In February 2016, the FASB issued ASU No. 2016-02, Leases , which increases transparency and comparability by recognizing a lessee’s rights and obligations resulting from leases by recording them on the balance sheet as lease assets and lease liabilities. The new guidance becomes effective for the Company on January 1, 2019 with early adoption permitted and will be applied using the modified retrospective method. The Company has not yet completed the evaluation of the effect that ASU No. 2016-02 will have on its consolidated financial statements. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10), Recognition and Measurement of Financial Assets and Financial Liabilities. ASU No. 2016-01 modifies how entities measure certain equity investments and also modifies the recognition of changes in the fair value of financial liabilities measured under the fair value option. Entities will be required to measure equity investments that do not result in consolidation and are not accounted for under the equity method at fair value and recognize any changes in fair value in net income. For financial liabilities measured using the fair value option, entities will be required to record changes in fair value caused by a change in instrument-specific credit risk (own credit risk) separately in other comprehensive income. ASU No. 2016-01 is effective for the Company on January 1, 2018. The Company does expect the adoption of ASU No. 2016-01 to have any effect on its consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, requiring an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU No. 2014-09 will replace most existing revenue recognition guidance in GAAP. In August 2015, the FASB issued ASU No. 2015-14 that approved deferring the effective date by one year so that ASU No. 2014-09 is effective for the Company on January 1, 2018. In December 2016, the FASB issued ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers, in order to clarify the Codification and to correct any unintended application of the guidance. The amendments in this update affect the guidance in ASU No. 2014-09. The Company will adopt ASU No. 2014-09 on January 1, 2018 and will transition to the standard retrospectively. The adoption of ASU No. 2014-09 will not have a material impact on the Company’s financial position or results of operations. The adoption will, however, result in the deferral of certain installation revenue and the deferral of certain commission expenses. Additionally, the Company anticipates changes in the composition of revenue resulting from the allocation of value related to bundled services sold at a discount to residential customers.
Dividends and Distributions	Dividends and Distributions The Company may pay dividends on its capital stock only from net profits and surplus as determined under Delaware law. If dividends are paid on the Altice USA common stock, holders of the Altice USA Class A common stock and Altice USA Class B common stock are entitled to receive dividends, and other distributions in cash, stock or property, equally on a per share basis, except that stock dividends with respect to Altice USA Class A common stock may be paid only with shares of Altice USA Class A common stock and stock dividends with respect to Altice USA Class B common stock may be paid only with shares of Altice USA Class B common stock. The Company's indentures restrict the amount of dividends and distributions in respect of any equity interest that can be made.
Net Income (Loss) Per Share	Net Income (Loss) Per Share Basic net income (loss) per common share attributable to Altice USA stockholders is computed by dividing net income (loss) attributable to Altice USA stockholders by the weighted average number of common shares outstanding during the period. Diluted income per common share attributable to Altice USA stockholders reflects the dilutive effects of stock options. Diluted net loss per common share attributable to Altice USA stockholders excludes the effects of common stock equivalents as they are anti-dilutive. The weighted average number of shares used to compute basic and diluted net income (loss) per share reflect the retroactive impact of the organizational transactions, discussed in Note 1, that occurred prior to the Company's IPO.
Concentrations of Credit Risk	Concentrations of Credit Risk Financial instruments that may potentially subject the Company to a concentration of credit risk consist primarily of cash and cash equivalents and trade account receivables. The Company monitors the financial institutions and money market funds where it invests its cash and cash equivalents with diversification among counterparties to mitigate exposure to any single financial institution. The Company's emphasis is primarily on safety of principal and liquidity and secondarily on maximizing the yield on its investments. Management believes that no significant concentration of credit risk exists with respect to its cash and cash equivalents because of its assessment of the creditworthiness and financial viability of the respective financial institutions.
Use of Estimates in Preparation of Financial Statements	Use of Estimates in Preparation of Financial Statements The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. See Note 11 for a discussion of fair value estimates.

CVC - SUMMARY OF SIGNIFICANT 57

CVC - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2017
Use of Estimates in Preparation of Financial Statements	Use of Estimates in Preparation of Financial Statements The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. See Note 11 for a discussion of fair value estimates.
Multiple-Element Transactions	Multiple-Element Transactions In the normal course of business, the Company may enter into multiple-element transactions where it is simultaneously both a customer and a vendor with the same counterparty or in which it purchases multiple products and/or services, or settles outstanding items contemporaneously with the purchase of a product or service, from a single counterparty. The Company's policy for accounting for each transaction negotiated contemporaneously is to record each deliverable of the transaction based on its best estimate of selling price in a manner consistent with that used to determine the price to sell each deliverable on a standalone basis. In determining the fair value of the respective deliverable, the Company will utilize quoted market prices (as available), historical transactions or comparable transactions.
Gross Versus Net Revenue Recognition	Gross Versus Net Revenue Recognition In the normal course of business, the Company is assessed non-income related taxes by governmental authorities, including franchising authorities (generally under multi-year agreements), and collects such taxes from its customers. The Company's policy is that, in instances where the tax is being assessed directly on the Company, amounts paid to the governmental authorities and amounts received from the customers are recorded on a gross basis. That is, amounts paid to the governmental authorities are recorded as programming and other direct costs and amounts received from the customer are recorded as revenue.
Advertising Expenses	Advertising Expenses Advertising costs are charged to expense when incurred and are reflected in "other operating expenses" in the accompanying consolidated statements of operations.
Income Taxes	Income Taxes The Company's provision for income taxes is based on current period income, changes in deferred tax assets and liabilities and changes in estimates with regard to uncertain tax positions. Deferred tax assets are subject to an ongoing assessment of realizability. The Company provides deferred taxes for the outside basis difference of its investment in partnerships.
Cash and Cash Equivalents	Cash and Cash Equivalents The Company's cash investments are placed with money market funds and financial institutions that are investment grade as rated by Standard & Poor's and Moody's Investors Service. The Company selects money market funds that predominantly invest in marketable, direct obligations issued or guaranteed by the United States government or its agencies, commercial paper, fully collateralized repurchase agreements, certificates of deposit, and time deposits. The Company considers the balance of its investment in funds that substantially hold securities that mature within three months or less from the date the fund purchases these securities to be cash equivalents. The carrying amount of cash and cash equivalents either approximates fair value due to the short-term maturity of these instruments or are at fair value.
Investments	Investments Investment securities and investment securities pledged as collateral are classified as trading securities and are stated at fair value with realized and unrealized holding gains and losses included in net income.
Long-Lived Assets	The Company reviews its long-lived assets (property, plant and equipment, and intangible assets subject to amortization that arose from acquisitions) for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the expected cash flows, undiscounted and without interest, is less than the carrying amount of the asset, an impairment loss is recognized as the amount by which the carrying amount of the asset exceeds its fair value Long-Lived Assets and Amortizable Intangible Assets Property, plant and equipment, including construction materials, are carried at cost, and include all direct costs and certain indirect costs associated with the construction of cable systems, and the costs of new equipment installations. Equipment under capital leases is recorded at the present value of the total minimum lease payments. Depreciation on equipment is calculated on the straight-line basis over the estimated useful lives of the assets or, with respect to equipment under capital leases and leasehold improvements, amortized over the shorter of the lease term or the assets' useful lives and reported in depreciation and amortization (including impairments) in the consolidated statements of operations. The Company capitalizes certain internal and external costs incurred to acquire or develop internal-use software. Capitalized software costs are amortized over the estimated useful life of the software and reported in depreciation and amortization.
Amortizable Intangible Assets	Customer relationships, trade names and other intangibles established in connection with acquisitions that are finite-lived are amortized in a manner that reflects the pattern in which the projected net cash inflows to the Company are expected to occur, such as the sum of the years' digits method, or when such pattern does not exist, using the straight-line basis over their respective estimated useful lives. The Company reviews its long-lived assets (property, plant and equipment, and intangible assets subject to amortization that arose from acquisitions) for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the expected cash flows, undiscounted and without interest, is less than the carrying amount of the asset, an impairment loss is recognized as the amount by which the carrying amount of the asset exceeds its fair value.
Goodwill and Indefinite-Lived Intangible Assets	Goodwill and Indefinite-Lived Intangible Assets Goodwill and the value of franchises acquired in purchase business combinations which have indefinite useful lives are not amortized. Rather, such assets are tested for impairment annually or upon the occurrence of a triggering event. The Company assesses qualitative factors for its reporting units that carry goodwill. If the qualitative assessment results in a conclusion that it is more likely than not that the fair value of a reporting unit exceeds the carrying value, then no further testing is performed for that reporting unit. When the qualitative assessment is not used, or if the qualitative assessment is not conclusive and it is necessary to calculate the fair value of a reporting unit, then the impairment analysis for goodwill is performed at the reporting unit level using a two-step approach. The first step of the goodwill impairment test is used to identify potential impairment by comparing the fair value of the reporting unit with its carrying amount, including goodwill utilizing an enterprise-value based premise approach. If the carrying amount of the reporting unit exceeds its fair value, the second step of the goodwill impairment test is performed to measure the amount of goodwill impairment loss, if any. The second step of the goodwill impairment test compares the implied fair value of the reporting unit's goodwill with the carrying amount of that goodwill. If the carrying amount of the reporting unit's goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. The implied fair value of goodwill is determined in the same manner as the amount of goodwill which would be recognized in a business combination. The Company assesses qualitative factors to determine whether it is necessary to perform the one-step quantitative identifiable indefinite-lived intangible assets impairment test. This quantitative test is required only if the Company concludes that it is more likely than not that a unit of accounting’s fair value is less than its carrying amount. When the qualitative assessment is not used, or if the qualitative assessment is not conclusive, the impairment test for other intangible assets not subject to amortization requires a comparison of the fair value of the intangible asset with its carrying value. If the carrying value of the indefinite-lived intangible asset exceeds its fair value, an impairment loss is recognized in an amount equal to that excess.
Derivative Financial Instruments	Derivative Financial Instruments The Company accounts for derivative financial instruments as either assets or liabilities measured at fair value. The Company uses derivative instruments to manage its exposure to market risks from changes in certain equity prices and interest rates and does not hold or issue derivative instruments for speculative or trading purposes. These derivative instruments are not designated as hedges, and changes in the fair values of these derivatives are recognized in the statements of operations as gains (losses) on derivative contracts.
Commitments and Contingencies	Commitments and Contingencies Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when the Company believes it is probable that a liability has been incurred and the amount of the contingency can be reasonably estimated.
Recently Adopted Accounting Pronouncements and Recently Issued But Not Yet Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncement In March 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-09, Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which provides simplification of income tax accounting for share-based payment awards. The new guidance became effective for the Company on January 1, 2017. Amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures, and intrinsic value were applied using the modified retrospective transition method. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term were applied prospectively. The Company elected to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using the prospective transition method. In connection with the adoption on January 1, 2017, a deferred tax asset of approximately $310,771 for previously unrealized excess tax benefits was recognized with the offset recorded to accumulated deficit. Recently Issued But Not Yet Adopted Accounting Pronouncements In February 2018, the FASB issued ASU No. 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220) Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The primary provision of ASU No. 2018-02 allows for the reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. ASU 2018-02 also requires certain disclosures about stranded tax effects. ASU No. 2018‑02 is effective for the Company on January 1, 2019, with early adoption permitted and will be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act is recognized. In May 2017, the FASB issued ASU No. 2017‑09, Compensation- Stock Compensation (Topic 718). ASU No. 2017‑09 provides clarity and guidance on which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. ASU No. 2017‑09 is effective for the Company on January 1, 2018 and will be applied prospectively. In March 2017, the FASB issued ASU No. 2017‑07 Compensation-Retirement Benefits (Topic 715). ASU No. 2017‑07 requires that an employer disaggregate the service cost component from the other components of net benefit cost. It also provides guidance on how to present the service cost component and the other components of net benefit cost in the income statement and what component of net benefit cost is eligible for capitalization. ASU No. 2017‑07 is effective for the Company on January 1, 2018 and will be applied retrospectively. In connection with the adoption of ASU 2017-07, the Company will reclassify the non-service cost components of the Company's pension expense from primarily "Other operating expenses" to "Miscellaneous income (expense), net" on its consolidated statements of operations. The Company has elected to apply the practical expedient which allows it to reclassify amounts disclosed previously in the benefits plan note (Note 17 of the consolidated financial statements) as the basis for applying retrospective presentation for comparative periods, as the Company determined it was impracticable to disaggregate the cost components for amounts capitalized and amortized in those periods. In January 2017, the FASB issued ASU No. 2017‑04, Intangibles-Goodwill and Other (Topic 350). ASU No. 2017‑04 simplifies the subsequent measurement of goodwill by removing the second step of the two‑step impairment test. The amendment requires an entity to perform its annual, or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU No. 2017‑04 becomes effective for the Company on January 1, 2020 with early adoption permitted and will be applied prospectively. In January 2017, the FASB issued ASU No. 2017‑01, Business Combinations (Topic 805), Clarifying the Definition of a Business, which amends Topic 805 to interpret the definition of a business by adding guidance to assist in evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The new guidance is effective for the Company on January 1, 2018 and will be applied prospectively. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments which clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows. ASU No. 2016-15 also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. The new guidance is effective for the Company on January 1, 2018 and will be applied retrospectively. The Company does not believe that the adoption of ASU No. 2016-15 will have a material effect on its consolidated statements of cash flows. In February 2016, the FASB issued ASU No. 2016-02, Leases , which increases transparency and comparability by recognizing a lessee’s rights and obligations resulting from leases by recording them on the balance sheet as lease assets and lease liabilities. The new guidance becomes effective for the Company on January 1, 2019 with early adoption permitted and will be applied using the modified retrospective method. The Company has not yet completed the evaluation of the effect that ASU No. 2016-02 will have on its consolidated financial statements. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10), Recognition and Measurement of Financial Assets and Financial Liabilities. ASU No. 2016-01 modifies how entities measure certain equity investments and also modifies the recognition of changes in the fair value of financial liabilities measured under the fair value option. Entities will be required to measure equity investments that do not result in consolidation and are not accounted for under the equity method at fair value and recognize any changes in fair value in net income. For financial liabilities measured using the fair value option, entities will be required to record changes in fair value caused by a change in instrument-specific credit risk (own credit risk) separately in other comprehensive income. ASU No. 2016-01 is effective for the Company on January 1, 2018. The Company does expect the adoption of ASU No. 2016-01 to have any effect on its consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, requiring an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU No. 2014-09 will replace most existing revenue recognition guidance in GAAP. In August 2015, the FASB issued ASU No. 2015-14 that approved deferring the effective date by one year so that ASU No. 2014-09 is effective for the Company on January 1, 2018. In December 2016, the FASB issued ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers, in order to clarify the Codification and to correct any unintended application of the guidance. The amendments in this update affect the guidance in ASU No. 2014-09. The Company will adopt ASU No. 2014-09 on January 1, 2018 and will transition to the standard retrospectively. The adoption of ASU No. 2014-09 will not have a material impact on the Company’s financial position or results of operations. The adoption will, however, result in the deferral of certain installation revenue and the deferral of certain commission expenses. Additionally, the Company anticipates changes in the composition of revenue resulting from the allocation of value related to bundled services sold at a discount to residential customers.
Cablevision Systems Corporation And Subsidiaries
Principles of Consolidation	Principles of Consolidation The accompanying consolidated financial statements of Cablevision include the accounts of Cablevision and its majority-owned subsidiaries. Cablevision has no business operations independent of CSC Holdings, whose operating results and financial position are consolidated into Cablevision. All significant intercompany transactions and balances between Cablevision and CSC Holdings and their respective consolidated subsidiaries are eliminated in consolidation.
Use of Estimates in Preparation of Financial Statements	Use of Estimates in Preparation of Financial Statements The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. See Note 12 for a discussion of fair value estimates.
Reclassifications	Reclassifications Certain reclassifications have been made in the consolidated financial statements in the 2015 financial statements to conform to the 2016 presentation.
Revenue Recognition	Revenue Recognition The Company recognizes video, high-speed data, and voice services revenues as the services are provided to customers. Revenue received from customers who purchase bundled services at a discounted rate is allocated to each product in a pro-rata manner based on the individual product’s selling price (generally, the price at which the product is regularly sold on a standalone basis). Installation revenue for the Company's video, consumer high-speed data and VoIP services is recognized as installations are completed, as direct selling costs have exceeded this revenue in all periods reported. Advertising revenues are recognized when commercials are aired. Revenues derived from other sources are recognized when services are provided or events occur.
Multiple-Element Transactions	Multiple-Element Transactions In the normal course of business, the Company may enter into multiple-element transactions where it is simultaneously both a customer and a vendor with the same counterparty or in which it purchases multiple products and/or services, or settles outstanding items contemporaneous with the purchase of a product or service from a single counterparty. The Company's policy for accounting for each transaction negotiated contemporaneously is to record each deliverable of the transaction based on its best estimate of selling price in a manner consistent with that used to determine the price to sell each deliverable on a standalone basis. In determining the fair value of the respective deliverable, the Company will utilize quoted market prices (as available), historical transactions or comparable transactions.
Gross Versus Net Revenue Recognition	Gross Versus Net Revenue Recognition In the normal course of business, the Company is assessed non-income related taxes by governmental authorities, including franchising authorities (generally under multi-year agreements), and collects such taxes from its customers. The Company's policy is that, in instances where the tax is being assessed directly on the Company, amounts paid to the governmental authorities and amounts received from the customers are recorded on a gross basis. That is, amounts paid to the governmental authorities are recorded as programming and other direct costs and amounts received from the customer are recorded as revenue. For the period January 1, 2016 through June 20, 2016 and for the year ended December 31, 2015 , the amount of franchise fees and certain other taxes and fees included as a component of revenue aggregated $95,432 and $199,701 , respectively.
Technical and Operating Expenses	Technical and Operating Expenses Costs of revenue related to sales of services are classified as "programming and other direct costs" in the accompanying consolidated statements of operations.
Programming Costs	Programming Costs Programming expenses related to the Company's video service represent fees paid to programming distributors to license the programming distributed to subscribers. This programming is acquired generally under multi-year distribution agreements, with rates usually based on the number of subscribers that receive the programming. There have been periods when an existing distribution agreement has expired and the parties have not finalized negotiations of either a renewal of that agreement or a new agreement for certain periods of time. In substantially all these instances, the Company continues to carry and pay for these services until execution of definitive replacement agreements or renewals. The amount of programming expense recorded during the interim period is based on the Company's estimates of the ultimate contractual agreement expected to be reached, which is based on several factors, including previous contractual rates, customary rate increases and the current status of negotiations. Such estimates are adjusted as negotiations progress until new programming terms are finalized. In addition, the Company has received, or may receive, incentives from programming distributors for carriage of the distributors' programming. The Company generally recognizes these incentives as a reduction of programming costs in "programming and other direct costs", generally over the term of the distribution agreement.
Advertising Expenses	Advertising Expenses Advertising costs are charged to expense when incurred and are reflected in "other operating expenses" in the accompanying consolidated statements of operations.
Share-Based Compensation	Share-Based Compensation Share-based compensation expense is based on the fair value of the portion of share-based payment awards that are ultimately expected to vest. For share-based compensation awards that can be settled in cash, the Company recognizes compensation expense based on the estimated fair value of the award at each reporting period. For options and performance based option awards, Cablevision recognized compensation expense based on the estimated grant date fair value using the Black-Scholes valuation model. For options not subject to performance based vesting conditions, Cablevision recognized the compensation expense using a straight-line amortization method. For options subject to performance based vesting conditions, Cablevision recognized compensation expense based on the probable outcome of the performance criteria over the requisite service period for each tranche of awards. For restricted shares, Cablevision recognized compensation expense using a straight-line amortization method based on the grant date price of CNYG Class A common stock over the vesting period. For restricted stock units granted to non-employee director which vested 100% on the date of grant, compensation expense was recognized on the date of grant based on the grant date price of CNYG Class A common stock. For performance based restricted stock units ("PSUs") which cliff vested in three years, Cablevision recognized compensation expense on a straight-line basis over the vesting period based on the estimated number of shares of CNYG Class A common stock expected to be issued.
Income Taxes	Income Taxes The Company's provision for income taxes is based on current period income, changes in deferred tax assets and liabilities and changes in estimates with regard to uncertain tax positions. Deferred tax assets are subject to an ongoing assessment of realizability. The Company provides deferred taxes for the outside basis difference of its investment in partnerships. In the second quarter of 2016, the Company changed its accounting policy on a prospective basis to present interest expense relating to uncertain tax position as additional interest expense.
Cash and Cash Equivalents	Cash and Cash Equivalents The Company's cash investments are placed with money market funds and financial institutions that are investment grade as rated by Standard & Poor's and Moody's Investors Service. The Company selects money market funds that predominantly invest in marketable, direct obligations issued or guaranteed by the United States government or its agencies, commercial paper, fully collateralized repurchase agreements, certificates of deposit, and time deposits. The Company considers the balance of its investment in funds that substantially hold securities that mature within three months or less from the date the fund purchases these securities to be cash equivalents. The carrying amount of cash and cash equivalents either approximates fair value due to the short-term maturity of these instruments or are at fair value.
Accounts Receivable	Accounts Receivable Accounts receivable are recorded at net realizable value. The Company periodically assesses the adequacy of valuation allowances for uncollectible accounts receivable by evaluating the collectability of outstanding receivables and general factors such as historical collection experience, length of time individual receivables are past due, and the economic and competitive environment.
Investments	Investments Investment securities and investment securities pledged as collateral are classified as trading securities and are stated at fair value with realized and unrealized holding gains and losses included in net income.
Long-Lived Assets	Long-Lived Assets and Amortizable Intangible Assets Property, plant and equipment, including construction materials, are carried at cost, and include all direct costs and certain indirect costs associated with the construction of cable systems, and the costs of new equipment installations. Equipment under capital leases is recorded at the present value of the total minimum lease payments. Depreciation on equipment is calculated on the straight-line basis over the estimated useful lives of the assets or, with respect to equipment under capital leases and leasehold improvements, amortized over the shorter of the lease term or the assets' useful lives and reported in depreciation and amortization (including impairments) in the consolidated statements of operations. The Company capitalizes certain internal and external costs incurred to acquire or develop internal-use software. Capitalized software costs are amortized over the estimated useful life of the software and reported in depreciation and amortization (including impairments). Customer relationships, trade names and other intangibles established in connection with acquisitions that are finite-lived are amortized in a manner that reflects the pattern in which the projected net cash inflows to the Company are expected to occur, such as the sum of the years' digits method, or when such pattern does not exist, using the straight-line basis over their respective estimated useful lives. The Company reviews its long-lived assets (property, plant and equipment, and intangible assets subject to amortization that arose from acquisitions) for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the expected cash flows, undiscounted and without interest, is less than the carrying amount of the asset, an impairment loss is recognized as the amount by which the carrying amount of the asset exceeds its fair value.
Amortizable Intangible Assets	Long-Lived Assets and Amortizable Intangible Assets Property, plant and equipment, including construction materials, are carried at cost, and include all direct costs and certain indirect costs associated with the construction of cable systems, and the costs of new equipment installations. Equipment under capital leases is recorded at the present value of the total minimum lease payments. Depreciation on equipment is calculated on the straight-line basis over the estimated useful lives of the assets or, with respect to equipment under capital leases and leasehold improvements, amortized over the shorter of the lease term or the assets' useful lives and reported in depreciation and amortization (including impairments) in the consolidated statements of operations. The Company capitalizes certain internal and external costs incurred to acquire or develop internal-use software. Capitalized software costs are amortized over the estimated useful life of the software and reported in depreciation and amortization (including impairments). Customer relationships, trade names and other intangibles established in connection with acquisitions that are finite-lived are amortized in a manner that reflects the pattern in which the projected net cash inflows to the Company are expected to occur, such as the sum of the years' digits method, or when such pattern does not exist, using the straight-line basis over their respective estimated useful lives. The Company reviews its long-lived assets (property, plant and equipment, and intangible assets subject to amortization that arose from acquisitions) for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the expected cash flows, undiscounted and without interest, is less than the carrying amount of the asset, an impairment loss is recognized as the amount by which the carrying amount of the asset exceeds its fair value.
Impairment of Long-Lived Assets and Amortizable Intangible Assets	Long-Lived Assets and Amortizable Intangible Assets Property, plant and equipment, including construction materials, are carried at cost, and include all direct costs and certain indirect costs associated with the construction of cable systems, and the costs of new equipment installations. Equipment under capital leases is recorded at the present value of the total minimum lease payments. Depreciation on equipment is calculated on the straight-line basis over the estimated useful lives of the assets or, with respect to equipment under capital leases and leasehold improvements, amortized over the shorter of the lease term or the assets' useful lives and reported in depreciation and amortization (including impairments) in the consolidated statements of operations. The Company capitalizes certain internal and external costs incurred to acquire or develop internal-use software. Capitalized software costs are amortized over the estimated useful life of the software and reported in depreciation and amortization (including impairments). Customer relationships, trade names and other intangibles established in connection with acquisitions that are finite-lived are amortized in a manner that reflects the pattern in which the projected net cash inflows to the Company are expected to occur, such as the sum of the years' digits method, or when such pattern does not exist, using the straight-line basis over their respective estimated useful lives. The Company reviews its long-lived assets (property, plant and equipment, and intangible assets subject to amortization that arose from acquisitions) for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the expected cash flows, undiscounted and without interest, is less than the carrying amount of the asset, an impairment loss is recognized as the amount by which the carrying amount of the asset exceeds its fair value.
Goodwill and Indefinite-Lived Intangible Assets	Goodwill and Indefinite-Lived Intangible Assets Goodwill and the value of franchises, trademarks, and certain other intangibles acquired in purchase business combinations which have indefinite useful lives are not amortized. Rather, such assets are tested for impairment annually or upon the occurrence of a triggering event. The Company assesses qualitative factors for its reporting units that carry goodwill. If the qualitative assessment results in a conclusion that it is more likely than not that the fair value of a reporting unit exceeds the carrying value, then no further testing is performed for that reporting unit. When the qualitative assessment is not used, or if the qualitative assessment is not conclusive and it is necessary to calculate the fair value of a reporting unit, then the impairment analysis for goodwill is performed at the reporting unit level using a two-step approach. The first step of the goodwill impairment test is used to identify potential impairment by comparing the fair value of the reporting unit with its carrying amount, including goodwill utilizing an enterprise-value based premise approach. If the carrying amount of the reporting unit exceeds its fair value, the second step of the goodwill impairment test is performed to measure the amount of goodwill impairment loss, if any. The second step of the goodwill impairment test compares the implied fair value of the reporting unit's goodwill with the carrying amount of that goodwill. If the carrying amount of the reporting unit's goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. The implied fair value of goodwill is determined in the same manner as the amount of goodwill which would be recognized in a business combination. The Company assesses qualitative factors to determine whether it is necessary to perform the one-step quantitative identifiable indefinite-lived intangible assets impairment test. This quantitative test is required only if the Company concludes that it is more likely than not that a unit of accounting’s fair value is less than its carrying amount. When the qualitative assessment is not used, or if the qualitative assessment is not conclusive, the impairment test for other intangible assets not subject to amortization requires a comparison of the fair value of the intangible asset with its carrying value. If the carrying value of the indefinite-lived intangible asset exceeds its fair value, an impairment loss is recognized in an amount equal to that excess.
Deferred Financing Costs	Deferred Financing Costs Deferred financing costs are being amortized to interest expense using the effective interest method over the terms of the related debt.
Derivative Financial Instruments	Derivative Financial Instruments The Company accounts for derivative financial instruments as either assets or liabilities measured at fair value. The Company uses derivative instruments to manage its exposure to market risks from changes in certain equity prices and interest rates and does not hold or issue derivative instruments for speculative or trading purposes. These derivative instruments are not designated as hedges, and changes in the fair values of these derivatives are recognized in the statements of income as gains (losses) on derivative contracts.
Commitments and Contingencies	Commitments and Contingencies Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when the Company believes it is probable that a liability has been incurred and the amount of the contingency can be reasonably estimated.
Recently Adopted Accounting Pronouncements and Recently Issued But Not Yet Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In November 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2015-17 (Topic 740), Balance Sheet Classification of Deferred Taxes. This ASU amends existing guidance to require the presentation of deferred tax liabilities and assets as noncurrent within a classified statement of financial position. ASU No. 2015-17 was adopted by the Company as of June 30, 2016 and was applied prospectively to all deferred tax liabilities and assets. In September 2015, the FASB issued ASU No. 2015-16, Simplifying the Accounting for Measurement-Period Adjustments, which requires that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. Prior to the issuance of the standard, entities were required to retrospectively apply adjustments made to provisional amounts recognized in a business combination. ASU No. 2015-16 was adopted by the Company on January 1, 2016. In April 2015, the FASB issued ASU No. 2015-05, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement. ASU No. 2015-05 provides guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. ASU No. 2015-05 was adopted by the Company on January 1, 2016 and did not have a material impact on the Company's consolidated financial statements. In April 2015, the FASB issued ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Costs, which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability, consistent with the presentation of a debt discount. In August 2015, the FASB issued ASU No. 2015-15, Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements, which clarifies the treatment of debt issuance costs from line-of-credit arrangements after adoption of ASU No. 2015-03. ASU No. 2015-15 clarifies that the Securities and Exchange Commission staff would not object to an entity deferring and presenting debt issuance costs as an asset and subsequently amortizing the deferred debt issuance costs ratably over the term of the line-of-credit arrangement, regardless of whether there are any outstanding borrowings on the line-of-credit arrangement. ASU No. 2015-03 was adopted by the Company on January 1, 2016 representing a change in accounting principle and was applied retrospectively to all periods presented. Debt issuance costs, net for the Company of $67,119 , as of December 31, 2015 were reclassified from deferred financing costs and presented as a reduction to debt in the consolidated balance sheets. Debt issuance costs, net for the Company of $7,588 as of December 31, 2015 relating to its revolving credit facility were not impacted by the adoption of ASU No. 2015-03 and are reflected as long-term assets in the accompanying consolidated balance sheets. In August 2014, the FASB issued ASU No. 2014-15, Disclosures of Uncertainties about an Entity's Ability to Continue as a Going Concern, which requires management to evaluate whether there are conditions or events that raise substantial doubt about the entity's ability to continue as a going concern, and to provide certain disclosures when it is probable that the entity will be unable to meet its obligations as they become due within one year after the date that the financial statements are issued. ASU No. 2014-15 was adopted by the Company on January 1, 2016. In June 2014, the FASB issued ASU No. 2014-12, Compensation - Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved After the Requisite Service Period. ASU No. 2014-12 requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. Entities may apply the amendments in this ASU either: (a) prospectively to all awards granted or modified after the effective date; or (b) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. ASU No. 2014-12 was adopted by the Company on January 1, 2016 on a prospective basis and did not have any impact on the Company’s consolidated financial statements. Recently Issued But Not Yet Adopted Accounting Pronouncements In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, requiring an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU No. 2014-09 will replace most existing revenue recognition guidance in GAAP when it becomes effective and allows the use of either the retrospective or cumulative effect transition method. In August 2015, the FASB issued ASU No. 2015-14 that approved deferring the effective date by one year so that ASU No. 2014-09 would become effective for the Company on January 1, 2018. The FASB also approved, in July 2015, permitting the early adoption of ASU No. 2014-09, but not before the original effective date for the Company of January 1, 2017. In December 2016, the FASB issued ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers, in order to clarify the Codification and to correct any unintended application of the guidance. These items are not expected to have a significant effect on the current accounting standard. The amendments in this update affect the guidance in ASU No. 2014-09, which is not yet effective. ASU No. 2014-09 will be effective, reflecting the one-year deferral, for interim and annual periods beginning after December 15, 2017 (January 1, 2018 for the Company). Early adoption of the standard is permitted but not before the original effective date. Companies can transition to the standard either retrospectively or as a cumulative-effect adjustment as of the date of adoption. The Company is in the process of evaluating the impact that the adoption of ASU No. 2014-09 will have on its consolidated financial statements and selecting the method of transition to the new standard. We currently expect the adoption to impact the timing of the recognition of residential installation revenue and the recognition of commission expenses. In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash, which requires that the statement of cash flows disclose the change during the period in the total of cash, cash equivalents, restricted cash and restricted cash equivalents. Restricted cash should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of period total amounts shown on the statement of cash flows. ASU No. 2016-18 provides specific guidance on the presentation of restricted cash in the statement of cash flows. The new guidance becomes effective for the Company on January 1, 2019 with early adoption permitted and will be applied retrospectively. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments which clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows. ASU No. 2016-15 also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. The new guidance becomes effective for the Company on January 1, 2018 with early adoption permitted and will be applied retrospectively. The Company has not yet completed the evaluation of the effect that ASU No. 2016-15 will have on its consolidated financial statements. In March 2016, the FASB issued ASU 2016-09, Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which provides simplification of income tax accounting for share-based payment awards. The new guidance becomes effective for the Company on January 1, 2017 with early adoption permitted. Amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures, and intrinsic value will be applied using the modified retrospective transition method. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term will be applied prospectively. The Company may elect to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using either a prospective transition method or a retrospective transition method. In connection with the adoption on January 1, 2017, a deferred tax asset of approximately $309,000 for previously unrealized excess tax benefits will be recognized with the offset recorded to accumulated deficit. In February 2016, the FASB issued ASU 2016-02, Leases , which increases transparency and comparability by recognizing a lessee’s rights and obligations resulting from leases by recording them on the balance sheet as lease assets and lease liabilities. The new guidance becomes effective for the Company on January 1, 2019 with early adoption permitted and will be applied using the modified retrospective method. The Company has not yet completed the evaluation of the effect that ASU No. 2016-02 will have on its consolidated financial statements.

DESCRIPTION OF BUSINESS AND R58

DESCRIPTION OF BUSINESS AND RELATED MATTERS (Tables)	12 Months Ended
	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Retroactive Consolidation of Operations and Assets and Liabilities, Business Combination	The following reflects the retroactive combination of ATS’s revenue, operating expenses and operating income for the period indicated: Year Ended December 31, 2017 Revenue $ 9,325,465 Operating expenses 8,482,728 Operating income $ 842,737

SUMMARY OF SIGNIFICANT ACCOUN59

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Schedule of Weighted Average Number of Shares	The following table presents a reconciliation of weighted average shares used in the calculation of the basic and diluted net income per share attributable to Altice USA stockholders for the year ended December 31, 2017: Basic weighted average shares outstanding 696,055,000 Effect of dilution: Stock options — Diluted weighted average shares outstanding 696,055,000

BUSINESS COMBINATIONS (Tables)

BUSINESS COMBINATIONS (Tables)	12 Months Ended
	Dec. 31, 2017
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table provides the allocation of the total purchase price of $9,958,323 to the identifiable tangible and intangible assets and liabilities of Cablevision based on their respective fair values. The remaining useful lives represent the period over which acquired tangible and intangible assets with a finite life are being depreciated or amortized. Fair Values Estimated Useful Lives Current assets $ 1,923,071 Accounts receivable 271,305 Property, plant and equipment 4,864,621 2-18 years Goodwill 5,842,172 Indefinite-lived cable television franchises 8,113,575 Indefinite-lived Customer relationships 4,850,000 8 to 18 years Trade names (a) 1,010,000 12 years Amortizable intangible assets 23,296 1-15 years Other non-current assets 748,998 Current liabilities (2,311,201 ) Long-term debt (8,355,386 ) Deferred income taxes. (6,832,773 ) Other non-current liabilities (189,355 ) Total $ 9,958,323 (a) See Note 8 for additional information regarding a change in the remaining estimated useful lives of the Company's trade names.
Business Acquisition, Pro Forma Information	The following table presents the unaudited pro forma revenue and net loss for the period presented as if the Cablevision Acquisition had occurred on January 1, 2016: Year Ended December 31, 2016 Revenue $ 9,154,816 Net loss $ (721,257 )

SUPPLEMENTAL CASH FLOW INFORM61

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Non-Cash Investing and Financing Activities and Other Supplemental Data	The Company's non-cash investing and financing activities and other supplemental data were as follows: Years Ended December 31, 2017 2016 Non-Cash Investing and Financing Activities: Continuing Operations: Conversion of notes payable to affiliates and related parties of $1,750,000 (together with accrued and unpaid interest and applicable premium) to common stock (See Note 9) $ 2,264,252 $ — Property and equipment accrued but unpaid 171,604 155,653 Distributions declared but not paid — 79,617 Leasehold improvements paid by landlord 3,998 — Notes payable to vendor 40,131 12,449 Capital lease obligations 9,385 — Deferred financing costs accrued but unpaid — 2,570 Supplemental Data: Cash interest paid 1,765,126 1,192,370 Income taxes paid, net 29,006 1,538

RESTRUCTURING AND OTHER EXPEN62

RESTRUCTURING AND OTHER EXPENSE (Tables)	12 Months Ended
	Dec. 31, 2017
Restructuring and Related Activities [Abstract]
Restructuring Cost Activity	The following table summarizes the activity for the 2016 Restructuring Plan: Severance and Other Employee Related Costs Facility Realignment and Other Costs Total Restructuring charges incurred in 2016 $ 215,420 $ 11,157 $ 226,577 Payments and other (113,301 ) (2,760 ) (116,061 ) Accrual balance at December 31, 2016 102,119 8,397 110,516 Restructuring charges 142,679 7,243 149,922 Payments and other (131,324 ) (6,014 ) (137,338 ) Accrual balance at December 31, 2017 $ 113,474 $ 9,626 $ 123,100

PROPERTY, PLANT AND EQUIPMENT (

PROPERTY, PLANT AND EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, plant and equipment (including equipment under capital leases) consist of the following assets, which are depreciated or amortized on a straight-line basis over the estimated useful lives shown below: December 31, 2017 December 31, 2016 Estimated Useful Lives Customer premise equipment $ 1,093,726 $ 871,049 3 to 5 years Headends and related equipment 1,626,293 1,482,631 4 to 25 years Infrastructure 3,998,503 3,740,494 3 to 25 years Equipment and software 917,698 735,012 3 to 10 years Construction in progress (including materials and supplies) 286,702 84,321 Furniture and fixtures 52,545 45,576 5 to 12 years Transportation equipment 137,886 135,488 5 to 10 years Buildings and building improvements 394,421 390,337 10 to 40 years Leasehold improvements 108,071 104,309 Term of lease Land 47,563 47,715 8,663,408 7,636,932 Less accumulated depreciation and amortization (2,599,579 ) (1,039,297 ) $ 6,063,829 $ 6,597,635
Schedule of Capital Leased Assets	The gross amount of buildings and equipment and related accumulated depreciation recorded under capital leases is presented below: December 31, 2017 2016 Buildings and equipment $ 48,936 $ 53,833 Less accumulated depreciation (12,972 ) (6,306 ) $ 35,964 $ 47,527

OPERATING LEASES (Tables)

OPERATING LEASES (Tables)	12 Months Ended
	Dec. 31, 2017
Leases [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases	The minimum future annual payments for all operating leases (with initial or remaining terms in excess of one year) during the next five years and thereafter, including pole rentals from January 1, 2018 through December 31, 2022, at rates now in force are as follows: 2018 $ 74,992 2019 72,142 2020 69,203 2021 63,735 2022 55,234 Thereafter 140,406

INTANGIBLE ASSETS (Tables)

INTANGIBLE ASSETS (Tables)	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Acquired Finite-Lived Intangible Assets by Major Class	The following table summarizes information relating to the Company's acquired amortizable intangible assets: As of December 31, 2017 As of December 31, 2016 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Useful Lives Customer relationships $ 5,970,884 $ (1,409,021 ) $ 4,561,863 $ 5,925,884 $ (580,276 ) $ 5,345,608 8 to 18 years Trade names (a) 1,067,083 (588,574 ) 478,509 1,066,783 (83,397 ) 983,386 2 to 5 years Other amortizable intangibles 37,060 (10,978 ) 26,082 26,743 (3,093 ) 23,650 1 to 15 years $ 7,075,027 $ (2,008,573 ) $ 5,066,454 $ 7,019,410 $ (666,766 ) $ 6,352,644 (a) On May 23, 2017, Altice N.V. announced the adoption of a global brand to replace the Company's brands in the future, reducing the remaining useful lives of these trade name intangibles to three years from the date of the adoption, which reflected one year as an in-use asset and two years as a defensive asset. In December 2017, the Company made a decision to postpone the adoption of a global brand that would have replaced the Optimum brand, increasing the useful life of the Optimum trade name intangible asset to 5 years .
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	The following table sets forth the estimated amortization expense on intangible assets for the periods presented: Estimated amortization expense Year Ending December 31, 2018 $ 873,133 Year Ending December 31, 2019 777,846 Year Ending December 31, 2020 696,240 Year Ending December 31, 2021 616,718 Year Ending December 31, 2022 537,100
Schedule of Indefinite-Lived Intangible Assets	The following table summarizes information relating to the Company's acquired indefinite-lived intangible assets as of December 31, 2017 : As of December 31, 2017 As of December 31, 2016 Cablevision Cequel Total Cablevision Cequel Total Cable television franchises $ 8,113,575 $ 4,906,506 $ 13,020,081 $ 8,113,575 $ 4,906,506 $ 13,020,081 Goodwill 5,843,019 2,153,741 7,996,760 5,838,959 2,153,741 7,992,700 Total $ 13,956,594 $ 7,060,247 $ 21,016,841 $ 13,952,534 $ 7,060,247 $ 21,012,781
Schedule of Goodwill	The carrying amount of goodwill is presented below: Gross goodwill as of January 1, 2016 $ 2,040,402 Goodwill recorded in connection with Cablevision Acquisition 5,838,959 Adjustments to purchase accounting relating to Cequel Acquisition 113,339 Gross goodwill as of January 1, 2017 7,992,700 Goodwill recorded in connection with acquisitions in the first and fourth quarters of 2017 (Cablevision Segment) 23,948 Adjustments to purchase accounting relating to Cablevision Acquisition 3,213 Transfer of Cablevision goodwill related to Altice Technical Services US Corp. (See Note 14 for further details) (23,101 ) Net goodwill as of December 31, 2017 $ 7,996,760

DEBT (Tables)

DEBT (Tables)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Schedule of Line of Credit Facilities	The following table provides details of the Company's outstanding credit facility debt: Carrying Amount (a) Maturity Date Interest Rate Principal December 31, 2017 December 31, 2016 CSC Holdings Restricted Group: Revolving Credit Facility (b) $20,000 on October 9, 2020, remaining balance on November 30, 2021 4.75% $ 450,000 $ 425,488 $ 145,013 Term Loan Facility July 17, 2025 3.74% 2,985,000 2,967,818 2,486,874 Cequel: Revolving Credit Facility (c) November 30, 2021 — — — — Term Loan Facility July 28, 2025 3.82% 1,258,675 1,250,217 812,903 $ 4,693,675 4,643,523 3,444,790 Less: Current portion 42,650 33,150 Long-term debt $ 4,600,873 $ 3,411,640 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts. (b) At December 31, 2017 , $115,973 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $1,734,027 of the facility was undrawn and available, subject to covenant limitations. (c) At December 31, 2017 , $13,500 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $336,500 of the facility was undrawn and available, subject to covenant limitations.
Schedule of Long-term Debt Instruments	The following table summarizes the Company's senior guaranteed notes, senior secured notes and senior notes and debentures: Interest Rate Principal Amount Carrying Amount (a) Issuer Date Issued Maturity Date December 31, 2017 December 31, 2016 Senior notes: CSC Holdings (b)(f)(n) February 6, 1998 February 15, 2018 7.875 % $ 300,000 $ 301,184 $ 310,334 CSC Holdings (b)(f) July 21, 1998 July 15, 2018 7.625 % 500,000 507,744 521,654 CSC Holdings (c)(f) February 12, 2009 February 15, 2019 8.625 % 526,000 541,165 553,804 CSC Holdings (c)(f) November 15, 2011 November 15, 2021 6.750 % 1,000,000 960,146 951,702 CSC Holdings (c)(f) May 23, 2014 June 1, 2024 5.250 % 750,000 660,601 650,193 CSC Holdings (e) October 9, 2015 January 15, 2023 10.125 % 1,800,000 1,777,914 1,774,750 CSC Holdings (e)(l) October 9, 2015 October 15, 2025 10.875 % 1,684,221 1,661,135 1,970,379 Senior guaranteed notes: CSC Holdings (e) October 9, 2015 October 15, 2025 6.625 % 1,000,000 986,717 985,469 CSC Holdings (g) September 23, 2016 April 15, 2027 5.500 % 1,310,000 1,304,468 1,304,025 Senior notes: Cablevision (k)(o) September 23, 2009 September 15, 2017 8.625 % — — 926,045 Cablevision (c)(f)(n)(o) April 15, 2010 April 15, 2018 7.750 % 750,000 754,035 767,545 Cablevision (c)(f)(o) April 15, 2010 April 15, 2020 8.000 % 500,000 492,009 488,992 Cablevision (c)(f)(o) September 27, 2012 September 15, 2022 5.875 % 649,024 572,071 559,500 Senior notes: Cequel Communications Holdings I and Cequel Capital (d)(m)(p) Oct. 25, 2012 Dec. 28, 2012 September 15, 2020 6.375 % 1,050,000 1,027,493 1,457,439 Cequel Communications Holdings I and Cequel Capital (d)(p) May 16, 2013 Sept. 9, 2014 December 15, 2021 5.125 % 1,250,000 1,138,870 1,115,767 Cequel Communications Holdings I and Cequel Capital (i)(p) June 12, 2015 July 15, 2025 7.750 % 620,000 604,374 602,925 Senior secured notes: Altice US Finance I Corporation (h)(p) June 12, 2015 July 15, 2023 5.375 % 1,100,000 1,082,482 1,079,869 Altice US Finance I Corporation (j)(p) April 26, 2016 May 15, 2026 5.500 % 1,500,000 1,488,024 1,486,933 $ 16,289,245 15,860,432 17,507,325 Less: Current portion 507,744 926,045 Long-term debt $ 15,352,688 $ 16,581,280 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums. (b) The debentures are not redeemable by CSC Holdings prior to maturity. (c) Notes are redeemable at any time at a specified "make-whole" price plus accrued and unpaid interest to the redemption date. (d) The Company may redeem some or more of all the notes at the redemption price set forth in the relevant indenture, plus accrued and unpaid interest. (e) The Company may redeem some or all of the 2023 Notes at any time on or after January 15, 2019, and some or all of the 2025 Notes and 2025 Guaranteed Notes at any time on or after October 15, 2020, at the redemption prices set forth in the relevant indenture, plus accrued and unpaid interest, if any. The Company may also redeem up to 40% of each series of the Cablevision Acquisition Notes using the proceeds of certain equity offerings before October 15, 2018, at a redemption price equal to 110.125% for the 2023 Notes, 110.875% for the 2025 Notes and 106.625% for the 2025 Guaranteed Notes, in each case plus accrued and unpaid interest. In addition, at any time prior to January 15, 2019, CSC Holdings may redeem some or all of the 2023 Notes, and at any time prior to October 15, 2020, the Company may redeem some or all of the 2025 Notes and the 2025 Guaranteed Notes, at a price equal to 100% of the principal amount thereof, plus a “make whole” premium specified in the relevant indenture plus accrued and unpaid interest. (f) The carrying value of the notes was adjusted to reflect their fair value on the Cablevision Acquisition Date (aggregate reduction of $52,788 ). (g) The 2027 Guaranteed Notes are redeemable at any time on or after April 15, 2022 at the redemption prices set forth in the indenture, plus accrued and unpaid interest, if any. In addition, up to 40% may be redeemed for each series of the 2027 Guaranteed Notes using the proceeds of certain equity offerings before October 15, 2019, at a redemption price equal to 105.500% , plus accrued and unpaid interest. (h) Some or all of these notes may be redeemed at any time on or after July 15, 2018, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before July 15, 2018, at a redemption price equal to 105.375% . (i) Some or all of these notes may be redeemed at any time on or after July 15, 2020, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before July 15, 2018, at a redemption price equal to 107.750% . (j) Some or all of these notes may be redeemed at any time on or after May 15, 2021, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before May 15, 2019, at a redemption price equal to 105.500% . (k) In April 2017, the Company redeemed $500,000 of the senior notes from proceeds from the CVC Term Loan facility. In September 2017, these senior notes matured and the Company repaid the remaining principal balance of $400,000 . (l) In July 2017, the Company used approximately $350,120 of the proceeds from the IPO to fund the redemption of $315,779 principal amount of CSC Holdings senior notes due October 2025 and the related call premium of approximately $34,341 which was recorded as a loss on extinguishment of debt. The Company also recorded a write-off of deferred financings costs in connection with this redemption aggregating $4,516 . (m) In April 2017, the Company redeemed $450,000 of the senior notes from proceeds from the Cequel Term Loan facility. (n) As a result of the repayment of these notes in February 2018, discussed in Note 20, the carrying amount of these Notes has been classified as long-term indebtedness. (o) The issuers of these notes have no ability to service interest or principal on the notes, other than through any dividends or distributions received from CSC Holdings. CSC Holdings is restricted, in certain circumstances, from paying dividends or distributions to the issuers by the terms of the CVC Credit Facilities Agreement. (p) The issuers of these notes have no ability to service interest or principal on the notes, other than through any contributions/distributions from Cequel Communications, LLC (an indirect subsidiary of Cequel and the parent of Altice US Finance I). Cequel Communications, LLC is restricted in certain circumstances, from paying dividends or distributions to the issuers by the terms of the Cequel Credit Facilities Agreement.
Schedule of Maturities of Long-term Debt	The future maturities of debt payable by the Company under its various debt obligations outstanding as of December 31, 2017 , including notes payable, collateralized indebtedness (see Note 10), and capital leases, are as follows: Years Ending December 31, Cablevision Cequel Total 2018 $ 1,619,094 $ 16,518 $ 1,635,612 2019 565,604 18,310 583,914 2020 552,902 1,062,713 1,615,615 2021 2,921,269 1,262,723 4,183,992 2022 680,700 12,734 693,434 Thereafter 9,380,513 4,416,270 13,796,783

DERIVATIVE CONTRACTS AND COLL67

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS (Tables)	12 Months Ended
	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Location of Assets and Liabilities Associated With Derivative Instruments Within the Condensed Consolidated Balance Sheets	The following represents the location of the assets and liabilities associated with the Company's derivative instruments within the consolidated balance sheets: Asset Derivatives Liability Derivatives Derivatives Not Designated as Hedging Instruments Balance Sheet Location Fair Value at December 31, 2017 Fair Value at December 31, 2016 Fair Value at December 31, 2017 Fair Value at December 31, 2016 Prepaid forward contracts Derivative contracts, current $ 52,545 $ 352 $ (52,545 ) $ (13,158 ) Prepaid forward contracts Derivative contracts, long-term — 10,604 (109,504 ) — Interest rate swap contracts Liabilities under derivative contracts, long-term — — (77,902 ) (78,823 ) $ 52,545 $ 10,956 $ (239,951 ) $ (91,981 )
Schedule of Collateralized Debt Settlement	The following table summarizes the settlement of the Company's collateralized indebtedness relating to Comcast shares that were settled by delivering cash equal to the collateralized loan value, net of the value of the related equity derivative contracts during the year ended December 31, 2017 : Number of shares (a) 26,815,368 Collateralized indebtedness settled $ (774,703 ) Derivatives contracts settled (56,356 ) (831,059 ) Proceeds from new monetization contracts 838,794 Net cash proceeds $ 7,735 (a) Share amounts are adjusted for the 2 for 1 stock split in February 2017.

FAIR VALUE MEASUREMENT (Tables)

FAIR VALUE MEASUREMENT (Tables)	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table presents for each of these hierarchy levels, the Company's financial assets and financial liabilities that are measured at fair value on a recurring basis: Fair Value Hierarchy December 31, 2017 December 31, 2016 Assets: Money market funds (of which $14,700 is classified as restricted cash as of December 31, 2016) Level I $ 5,949 $ 100,139 Investment securities pledged as collateral Level I 1,720,357 1,483,030 Prepaid forward contracts Level II 52,545 10,956 Liabilities: Prepaid forward contracts Level II 162,049 13,158 Interest rate swap contracts Level II 77,902 78,823 Contingent consideration related to 2017 acquisitions Level III 32,233 —
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments	The carrying values, estimated fair values, and classification under the fair value hierarchy of the Company's financial instruments, excluding those that are carried at fair value in the accompanying consolidated balance sheets, are summarized as follows: December 31, 2017 December 31, 2016 Fair Value Hierarchy Carrying Amount (a) Estimated Fair Value Carrying Amount (a) Estimated Fair Value Altice USA debt instruments: Notes payable to affiliates and related parties Level II $ — $ — $ 1,750,000 $ 1,837,876 CSC Holdings debt instruments: Credit facility debt Level II 3,393,306 3,435,000 2,631,887 2,675,256 Collateralized indebtedness Level II 1,349,474 1,305,932 1,286,069 1,280,048 Senior guaranteed notes Level II 2,291,185 2,420,000 2,289,494 2,416,375 Senior notes and debentures Level II 6,409,889 7,221,846 6,732,816 7,731,150 Notes payable Level II 56,956 55,289 13,726 13,260 Cablevision senior notes Level II 1,818,115 1,931,239 2,742,082 2,920,056 Cequel debt instruments: Cequel credit facility Level II 1,250,217 1,258,675 812,903 815,000 Senior secured notes Level II 2,570,506 2,658,930 2,566,802 2,689,750 Senior notes Level II 2,770,737 2,983,615 3,176,131 3,517,275 Notes payable Level II 8,946 8,945 — — $ 21,919,331 $ 23,279,471 $ 24,001,910 $ 25,896,046 (a) Amounts are net of unamortized deferred financing costs and discounts/premiums.

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	Income tax benefit attributable to the Company's operations for the years ended December 31, 2017 and 2016 consist of the following components: Years Ended December 31, 2017 2016 Current expense (benefit): Federal $ 5,657 $ (981 ) State 12,509 5,310 18,166 4,329 Deferred benefit: Federal (2,088,652 ) (223,159 ) State (782,492 ) (40,830 ) (2,871,144 ) (263,989 ) Tax benefit relating to uncertain tax positions 11 (6 ) Income tax benefit $ (2,852,967 ) $ (259,666 )
Schedule of Effective Income Tax Rate Reconciliation	The income tax benefit attributable to the Company's operations differs from the amount derived by applying the statutory federal rate to pretax loss principally due to the effect of the following items: Years Ended December 31, 2017 2016 Federal tax benefit at statutory rate $ (465,972 ) $ (381,901 ) State income taxes, net of federal impact (59,719 ) (39,336 ) Changes in the valuation allowance (111 ) 297 Impact of Federal Tax Reform (2,337,900 ) — Changes in the state rates used to measure deferred taxes, net of federal impact (12,896 ) 153,239 Tax benefit relating to uncertain tax positions (253 ) (120 ) Non-deductible share-based compensation related to the carried unit plan 20,101 5,029 Non-deductible Cablevision Acquisition transaction costs — 4,457 Other non-deductible expenses 3,349 1,551 Other, net 434 (2,882 ) Income tax benefit $ (2,852,967 ) $ (259,666 )
Schedule of Deferred Tax Assets and Liabilities	The tax effects of temporary differences which give rise to significant portions of deferred tax assets or liabilities and the corresponding valuation allowance are as follows. December 31, 2017 2016 Noncurrent NOLs and tax credit carry forwards $ 784,334 $ 971,728 Compensation and benefit plans 48,280 93,939 Partnership investments 68,054 113,473 Restructuring liability 33,247 37,393 Other liabilities 38,140 45,561 Liabilities under derivative contracts 21,034 31,529 Interest deferred for tax purposes 128,516 39,633 Other 7,182 6,615 Deferred tax asset 1,128,787 1,339,871 Valuation allowance (3,000 ) (3,125 ) Net deferred tax asset, noncurrent 1,125,787 1,336,746 Fixed assets and intangibles (5,733,319 ) (9,065,635 ) Investments (113,628 ) (187,795 ) Prepaid expenses (8,007 ) (10,172 ) Fair value adjustments related to debt and deferred financing costs (40,215 ) (30,535 ) Other (5,733 ) (9,424 ) Deferred tax liability, noncurrent (5,900,902 ) (9,303,561 ) Total net deferred tax liability $ (4,775,115 ) $ (7,966,815 )
Summary of Income Tax Contingencies	A reconciliation of the beginning and ending amount of unrecognized tax benefits associated with uncertain tax positions, excluding associated deferred tax benefits and accrued interest, is as follows: Balance at January 1, 2016 $ 4,025 Increases related to prior year tax positions 11 Balance at December 31, 2017 $ 4,036

SHARE BASED COMPENSATION (Table

SHARE BASED COMPENSATION (Tables)	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Activity for Shares	The following table summarizes activity relating to carry units: Number of Time Vesting Awards Number of Performance Based Vesting Awards Weighted Average Grant Date Fair Value Balance, December 31, 2016 192,800,000 10,000,000 $ 0.37 Granted 28,025,000 — 3.14 Forfeited (7,854,166 ) — 0.37 Vested (44,420,833 ) — 0.41 Balance, December 31, 2017 168,550,001 10,000,000 0.71
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The following aggregate assumptions were used to calculate the fair values of stock option awards granted on December 30, 2017: Risk-free interest rate 2.30% Expected life (in years) 6.44 Dividend yield —% Volatility 33.95% Grant date fair value $8.77

AFFILIATE AND RELATED PARTY T71

AFFILIATE AND RELATED PARTY TRANSACTIONS (Tables)	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
Summary of related party transactions	The following table summarizes the revenue and charges related to services provided to or received from subsidiaries of Altice N.V. and Newsday: Years Ended December 31, 2017 2016 Revenue $ 2,205 $ 1,086 Operating expenses: Programming and other direct costs $ (4,176 ) $ (1,947 ) Other operating expenses, net (106,084 ) (18,854 ) Operating expenses, net (110,260 ) (20,801 ) Interest expense (see Note 9)(a) (90,405 ) (112,712 ) Loss on extinguishment of debt and write-off of deferred financing costs (see Note 9) (513,723 ) — Net charges $ (712,183 ) $ (132,427 ) Capital Expenditures $ 133,918 $ 45,886 (a) The 2016 amount includes $10,155 related to Holdco Notes prior to the exchange in addition to the interest related to notes payable to affiliates and related parties discussed in Note 9. Aggregate amounts that were due from and due to related parties are summarized below: December 31, 2017 2016 Due from: Altice US Finance S.A. (a) $ 12,951 $ 12,951 Newsday (b) 2,713 6,114 Altice Management Americas (b) 33 3,117 i24NEWS (b) 4,036 — Other Altice N.V. subsidiaries (b) 1,623 — $ 21,356 $ 22,182 Due to: CVC 3BV (c) $ — $ 71,655 Neptune Holdings US LP (c) — 7,962 Altice Management International (d) — 44,121 ATS (b)(e) 2,948 — Newsday (b) 33 275 Altice Labs S.A. (d) 7,354 866 Other Altice N.V. subsidiaries (f) 3,611 2,484 $ 13,946 $ 127,363 (a) Represents interest on senior notes paid by the Company on behalf of the affiliate. (b) Represents amounts paid by the Company on behalf of the respective related party and for Newsday and ATS, the net amounts due from the related party also include charges for certain transition services provided. (c) Represents distributions payable to stockholders. (d) Amounts payable as of December 31, 2016 primarily represent amounts due for equipment purchases and/or software development services discussed above. (e) Represents amounts due to ATS for construction, maintenance, and installation services, net of charges to ATS pursuant to the TSA. See discussion above. (f) Represents amounts due to affiliates for services provided to the Company.

COMMITMENTS AND CONTINGENCIES -

COMMITMENTS AND CONTINGENCIES - (Tables)	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Contractual Obligation, Fiscal Year Maturity Schedule	Future cash payments and commitments required under arrangements pursuant to contracts entered into by the Company in the normal course of business as of December 31, 2017 are as follows: Payments Due by Period Total Year 1 Years 2-3 Years 4-5 More than 5 years Off balance sheet arrangements: Purchase obligations (a) $ 8,423,735 $ 3,071,514 $ 4,179,616 $ 1,092,786 $ 79,819 Guarantees (b) 36,224 34,716 1,508 — — Letters of credit (c) 129,473 200 120 129,153 — Total $ 8,589,432 $ 3,106,430 $ 4,181,244 $ 1,221,939 $ 79,819 (a) Purchase obligations primarily include contractual commitments with various programming vendors to provide video services to customers and minimum purchase obligations to purchase goods or services. Future fees payable under contracts with programming vendors are based on numerous factors, including the number of customers receiving the programming. Amounts reflected above related to programming agreements are based on the number of customers receiving the programming as of December 31, 2017 multiplied by the per customer rates or the stated annual fee, as applicable, contained in the executed agreements in effect as of December 31, 2017 . (b) Includes franchise and performance surety bonds primarily for the Company's cable television systems. (c) Represent letters of credit guaranteeing performance to municipalities and public utilities and payment of insurance premiums. Payments due by period for these arrangements represent the year in which the commitment expires although payments under these arrangements are required only in the event of nonperformance.

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Schedule of Reconciliation of Adjusted EBITDA to Operating Income (Loss)	The Company has presented the components that reconcile Adjusted EBITDA to operating income, an accepted GAAP measure: Year Ended December 31, 2017 Year Ended December 31, 2016 Cablevision Cequel Total Cablevision (a) Cequel Total Operating income $ 345,063 $ 520,321 $ 865,384 $ 74,865 $ 384,801 $ 459,666 Share-based compensation 42,060 15,370 57,430 9,164 5,204 14,368 Restructuring and other expense 112,384 40,017 152,401 212,150 28,245 240,395 Depreciation and amortization (including impairments) 2,251,614 678,861 2,930,475 963,665 736,641 1,700,306 Adjusted EBITDA $ 2,751,121 $ 1,254,569 $ 4,005,690 $ 1,259,844 $ 1,154,891 $ 2,414,735 (a) Reflects operating results of Cablevision from the date of acquisition.
Reconciliation of Reportable Segment Amounts to Cablevision's and CSC Holdings' Consolidated Balances	A reconciliation of reportable segment amounts to the Company's consolidated balances are as follows: Year Ended December 31, 2017 2016 Operating income for reportable segments $ 865,384 $ 459,666 Items excluded from operating income: Interest expense (1,603,132 ) (1,456,541 ) Interest income 1,921 13,811 Gain on investments, net 237,354 141,896 Loss on derivative contracts, net (236,330 ) (53,696 ) Gain (loss) on interest rate swap contracts 5,482 (72,961 ) Loss on extinguishment of debt and write-off of deferred financing costs (600,240 ) (127,649 ) Other income (expense), net (1,788 ) 4,329 Loss before income taxes $ (1,331,349 ) $ (1,091,145 )
Schedule of Revenue by Products and Services and Segments	The following table presents the composition of revenue by segment: Year Ended December 31, 2017 Year Ended December 31, 2016 Cablevision (a) Cequel Eliminations Total Cablevision (a) Cequel Total Residential: Pay TV $ 3,113,238 $ 1,101,507 $ — $ 4,214,745 $ 1,638,691 $ 1,120,525 $ 2,759,216 Broadband 1,603,015 960,757 — 2,563,772 782,615 834,414 1,617,029 Telephony 693,478 130,503 — 823,981 376,034 153,939 529,973 Business services and wholesale 923,161 375,656 — 1,298,817 468,632 350,909 819,541 Advertising 321,149 73,509 (2,792 ) 391,866 163,678 88,371 252,049 Other 10,747 22,642 — 33,389 14,402 25,002 39,404 Total Revenue $ 6,664,788 $ 2,664,574 $ (2,792 ) $ 9,326,570 $ 3,444,052 $ 2,573,160 $ 6,017,212 (a) Reflects revenue from the Cablevision Acquisition Date.
Capital Expenditures by Reportable Segment	Capital expenditures (cash basis) by reportable segment are presented below: Years Ended December 31, 2017 2016 Cablevision $ 711,432 $ 298,357 Cequel 279,932 327,184 $ 991,364 $ 625,541

BENEFIT PLANS (Tables)

BENEFIT PLANS (Tables)	12 Months Ended
	Dec. 31, 2017
Retirement Benefits [Abstract]
Schedule of Net Funded Status	Summarized below is the funded status and the amounts recorded on the Company's consolidated balance sheets for all of the Company's Defined Benefit Plans at December 31, 2017 and 2016: December 31, 2017 2016 Change in projected benefit obligation: Projected benefit obligation at beginning of year $ 382,517 $ 403,963 Interest cost 11,786 14,077 Actuarial loss (gain) 13,171 (11,429 ) Curtailments 6,332 3,968 Settlements 6,910 — Benefits paid (121,650 ) (28,062 ) Projected benefit obligation at end of year 299,066 382,517 Change in plan assets: Fair value of plan assets at beginning of year 284,118 297,846 Actual return on plan assets, net 6,356 5,829 Employer contributions 26,944 8,505 Benefits paid (121,650 ) (28,062 ) Fair value of plan assets at end of year 195,768 284,118 Unfunded status at end of year $ (103,298 ) $ (98,399 )
Schedule of Amounts Recognized in Balance Sheet	The Company's net funded status relating to its Defined Benefit Plans at December 31, 2017 and 2016, is as follows: December 31, 2017 2016 Defined Benefit Plans $ (103,298 ) $ (98,399 ) Less: Current portion related to nonqualified plans 135 14,293 Long-term defined benefit plan obligations $ (103,163 ) $ (84,106 )
Schedule of Net Benefit Costs	Components of the net periodic benefit cost, recorded in other operating expenses, for the Defined Benefit Plans for the years ended December 31, 2017 and 2016, is as follows: Years Ended December 31, 2017 2016 Interest cost $ 11,786 $ 6,946 Expected return on plan assets, net (4,907 ) (4,022 ) Curtailment loss 3,137 231 Settlement loss (income) (reclassified from accumulated other comprehensive loss) (a) 1,845 (154 ) Net periodic benefit cost $ 11,861 $ 3,001 (a) As a result of benefit payments to terminated or retired individuals exceeding the service and interest costs for the Pension Plan and the Excess Cash Balance Pension Plan during the year ended December 31, 2017 and during the period June 21, 2016 through December 31, 2016, the Company recognized a non-cash settlement loss that represented the acceleration of the recognition of a portion of the previously unrecognized actuarial losses recorded in accumulated other comprehensive loss on the Company’s consolidated balance sheet relating to these plans.
Schedule of Assumptions Used	Weighted-average assumptions used to determine net periodic cost (made at the beginning of the year) and benefit obligations (made at the end of the year) for the Defined Benefit Plans are as follows: Net Periodic Benefit Cost Benefit Obligations at December 31, For the Year Ended December 31, 2017 For the Period June 21, 2016 to December 31, 2016 2017 2016 Discount rate (a) 3.69 % 3.53 % 3.50 % 3.81 % Rate of increase in future compensation levels — % — % — % — % Expected rate of return on plan assets (Pension Plan only) 3.90 % 3.97 % N/A N/A (a) The discount rate of 3.53% for the period June 21, 2016 through December 31, 2016, represents the average of the quarterly discount rates used to remeasure the Company's projected benefit obligation and net periodic benefit cost in connection with the recognition of settlement losses discussed above.
Schedule of Allocation of Plan Assets	The fair values of the assets of the Pension Plan at December 31, 2017 by asset class are as follows: Asset Class Level I Level II Level III Total Mutual funds $ 61,833 $ — $ — $ 61,833 Fixed income securities held in a portfolio: Foreign issued corporate debt — 10,721 — 10,721 U.S. corporate debt — 39,992 — 39,992 Government debt — 4,645 — 4,645 U.S. Treasury securities — 62,601 — 62,601 Asset-backed securities — 10,978 — 10,978 Other — — — — Cash equivalents (a) 6,691 2,782 — 9,473 Total (b) $ 68,524 $ 131,719 $ — $ 200,243 (a) A significant portion represents an investment in a short-term investment fund that invests primarily in securities of high quality and low risk. (b) Excludes cash and net payables relating to the purchase of securities that were not settled as of December 31, 2017. The fair values of the assets of the Pension Plan at December 31, 2016 by asset class are as follows: Asset Class Level I Level II Level III Total Mutual funds $ 121,356 $ — $ — $ 121,356 Fixed income securities held in a portfolio: Foreign issued corporate debt — 13,583 — 13,583 U.S. corporate debt — 48,046 — 48,046 Government debt — 4,810 — 4,810 U.S. Treasury securities — 77,285 — 77,285 Asset-backed securities — 14,065 — 14,065 Other — 247 — 247 Cash equivalents (a) 2,593 3,089 — 5,682 Total (b) $ 123,949 $ 161,125 $ — $ 285,074 (a) A significant portion represents an investment in a short-term investment fund that invests primarily in securities of high quality and low risk. (b) Excludes cash and net payables relating to the purchase of securities that were not settled as of December 31, 2016. The weighted average asset allocations of the Pension Plan at December 31, 2017 and 2016 were as follows: Plan Assets at December 31, 2017 2016 Asset Class: Mutual funds 32 % 43 % Fixed income securities 66 55 Cash equivalents and other 2 2 100 % 100 %
Schedule of Expected Benefit Payments	The following benefit payments are expected to be paid during the periods indicated: 2018 $ 96,482 2019 18,960 2020 14,052 2021 13,282 2022 13,792 2023-2027 69,369

ALLOWANCE FOR DOUBTFUL ACCOUN75

ALLOWANCE FOR DOUBTFUL ACCOUNTS (Tables)	12 Months Ended
	Dec. 31, 2017
Receivables [Abstract]
Allowance for Credit Losses on Financing Receivables	Activity related to the Company's allowance for doubtful accounts is presented below: Balance at Beginning of Period Provision for Bad Debt Deductions/ Write-Offs and Other Charges Balance at End of Period Year Ended December 31, 2017 Allowance for doubtful accounts $ 11,677 $ 74,183 $ (72,440 ) $ 13,420 Year Ended December 31, 2016 Allowance for doubtful accounts $ 1,051 $ 53,249 $ (42,623 ) $ 11,677

INTERIM FINANCIAL INFORMATION (

INTERIM FINANCIAL INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information	The following is a summary of the Company's selected quarterly financial data for the years ended December 31, 2017 and 2016: March 31, 2017 June 30, 2017 September 30, 2017 December 31, 2017 (a) Total 2017 Revenues, net $ 2,305,676 $ 2,328,341 $ 2,327,175 $ 2,365,378 $ 9,326,570 Operating expenses (2,057,442 ) (2,071,559 ) (2,192,311 ) (2,139,874 ) (8,461,186 ) Operating income $ 248,234 $ 256,782 $ 134,864 $ 225,504 $ 865,384 Net income (loss) $ (76,188 ) $ (474,790 ) $ (182,086 ) $ 2,254,682 $ 1,521,618 Net income attributable to noncontrolling interests (237 ) (365 ) (135 ) (850 ) (1,587 ) Net income (loss) attributable to Altice USA Inc.'s stockholders $ (76,425 ) $ (475,155 ) $ (182,221 ) $ 2,253,832 $ 1,520,031 Basic and diluted net income (loss) per share attributable to Altice USA Inc.'s stockholders $ (0.12 ) $ (0.72 ) $ (0.25 ) $ 3.06 $ 2.18 (a) Pursuant to the enactment of the Tax Reform on December 22, 2017, the Company recorded a noncash deferred tax benefit of $2,337,900 to remeasure the net deferred tax liability to adjust for the reduction in the corporate federal income tax rate 35% to 21% which is effective on January 1, 2018. March 31, 2016 June 30, 2016 September 30, 2016 December 31, 2016 Total 2016 Revenues, net $ 627,589 $ 823,501 $ 2,260,221 $ 2,305,901 $ 6,017,212 Operating expenses (573,329 ) (778,098 ) (2,117,442 ) (2,088,677 ) (5,557,546 ) Operating income $ 54,260 $ 45,403 $ 142,779 $ 217,224 $ 459,666 Net loss $ (140,748 ) $ (282,129 ) $ (172,553 ) $ (236,049 ) $ (831,479 ) Net loss (income) attributable to noncontrolling interests — 364 (256 ) (659 ) (551 ) Net loss attributable to Altice USA, Inc. stockholders $ (140,748 ) $ (281,765 ) $ (172,809 ) $ (236,708 ) $ (832,030 ) Basic and diluted net loss per share attributable to Altice USA Inc.'s stockholders $ (0.22 ) $ (0.43 ) $ (0.27 ) $ (0.36 ) $ (1.28 )

CVC - SUMMARY OF SIGNIFICANT 77

CVC - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2017
Reconciliation of weighted average shares used in the calculations of the basic and diluted net income per share attributable to Cablevision stockholders	The following table presents a reconciliation of weighted average shares used in the calculation of the basic and diluted net income per share attributable to Altice USA stockholders for the year ended December 31, 2017: Basic weighted average shares outstanding 696,055,000 Effect of dilution: Stock options — Diluted weighted average shares outstanding 696,055,000
Cablevision Systems Corporation And Subsidiaries
Schedule of common stock	The following table provides details of Cablevision's shares of common stock through the Merger Date: Shares of Common Stock Outstanding Class A Common Stock Class B Common Stock Balance at December 31, 2014 220,219,935 54,137,673 Employee and non-employee director stock transactions (a) 2,352,275 — Balance at December 31, 2015 222,572,210 54,137,673 Employee and non-employee director stock transactions (a) (185,276 ) — Balance at June 20, 2016 222,386,934 54,137,673 (a) Primarily included issuances of common stock in connection with employee and non-employee director exercises of stock options and restricted shares granted to employees, offset by shares acquired by the Company in connection with the fulfillment of employees' statutory tax withholding obligation for applicable income and other employment taxes and forfeited employee restricted shares.
Schedule of cash dividends declared	Prior to the Merger, the Board of Directors of Cablevision had declared and paid the following cash dividends to stockholders of record on both its CNYG Class A common stock and CNYG Class B common stock: Declaration Date Dividend per Share Record Date Payment Date August 6, 2015 $0.15 August 21, 2015 September 10, 2015 May 1, 2015 $0.15 May 22, 2015 June 12, 2015 February 24, 2015 $0.15 March 16, 2015 April 3, 2015
Reconciliation of weighted average shares used in the calculations of the basic and diluted net income per share attributable to Cablevision stockholders	The following table presents a reconciliation of weighted average shares used in the calculations of the basic and diluted net income per share attributable to Cablevision stockholders: January 1, 2016 to June 20, 2016 Years Ended December 31, 2015 Basic weighted average shares outstanding 272,035 269,388 Effect of dilution: Stock options 4,444 3,532 Restricted stock 3,720 3,419 Diluted weighted average shares outstanding 280,199 276,339

CVC - ALLOWANCE FOR DOUBTFUL 78

CVC - ALLOWANCE FOR DOUBTFUL ACCOUNTS (Tables)	12 Months Ended
	Dec. 31, 2017
Schedule of activity related to the allowance for doubtful accounts	Activity related to the Company's allowance for doubtful accounts is presented below: Balance at Beginning of Period Provision for Bad Debt Deductions/ Write-Offs and Other Charges Balance at End of Period Year Ended December 31, 2017 Allowance for doubtful accounts $ 11,677 $ 74,183 $ (72,440 ) $ 13,420 Year Ended December 31, 2016 Allowance for doubtful accounts $ 1,051 $ 53,249 $ (42,623 ) $ 11,677
Cablevision Systems Corporation And Subsidiaries
Schedule of activity related to the allowance for doubtful accounts	Activity related to the allowance for doubtful accounts: Balance at Beginning of Period Provision for Bad Debt Deductions/ Write-Offs and Other Charges Balance at End of Period Period from January 1, 2016 through June 20, 2016 Allowance for doubtful accounts $ 6,039 $ 13,240 $ (12,378 ) $ 6,901 Year Ended December 31, 2015 Allowance for doubtful accounts $ 12,112 $ 35,802 $ (41,875 ) $ 6,039

CVC - SUPPLEMENTAL CASH FLOW 79

CVC - SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2017
Schedule of non-cash investing and financing activities and other supplemental data	The Company's non-cash investing and financing activities and other supplemental data were as follows: Years Ended December 31, 2017 2016 Non-Cash Investing and Financing Activities: Continuing Operations: Conversion of notes payable to affiliates and related parties of $1,750,000 (together with accrued and unpaid interest and applicable premium) to common stock (See Note 9) $ 2,264,252 $ — Property and equipment accrued but unpaid 171,604 155,653 Distributions declared but not paid — 79,617 Leasehold improvements paid by landlord 3,998 — Notes payable to vendor 40,131 12,449 Capital lease obligations 9,385 — Deferred financing costs accrued but unpaid — 2,570 Supplemental Data: Cash interest paid 1,765,126 1,192,370 Income taxes paid, net 29,006 1,538
Cablevision Systems Corporation And Subsidiaries
Schedule of non-cash investing and financing activities and other supplemental data	The Company's non-cash investing and financing activities and other supplemental data were as follows: January 1, 2016 to June 20, 2016 Years Ended December 31, 2015 Non-Cash Investing and Financing Activities: Continuing Operations: Property and equipment accrued but unpaid $ 68,356 $ 63,843 Notes payable to vendor — 8,318 Capital lease obligations — 19,987 Intangible asset obligations 290 1,121 Non-Cash Investing and Financing Activities: Dividends payable on unvested restricted share awards — 3,517 Supplemental Data: Continuing Operations: Cash interest paid 258,940 560,361 Income taxes paid, net 7,082 3,849

CVC - PROPERTY, PLANT AND EQU80

CVC - PROPERTY, PLANT AND EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Schedule of property, plant and equipment	Property, plant and equipment (including equipment under capital leases) consist of the following assets, which are depreciated or amortized on a straight-line basis over the estimated useful lives shown below: December 31, 2017 December 31, 2016 Estimated Useful Lives Customer premise equipment $ 1,093,726 $ 871,049 3 to 5 years Headends and related equipment 1,626,293 1,482,631 4 to 25 years Infrastructure 3,998,503 3,740,494 3 to 25 years Equipment and software 917,698 735,012 3 to 10 years Construction in progress (including materials and supplies) 286,702 84,321 Furniture and fixtures 52,545 45,576 5 to 12 years Transportation equipment 137,886 135,488 5 to 10 years Buildings and building improvements 394,421 390,337 10 to 40 years Leasehold improvements 108,071 104,309 Term of lease Land 47,563 47,715 8,663,408 7,636,932 Less accumulated depreciation and amortization (2,599,579 ) (1,039,297 ) $ 6,063,829 $ 6,597,635
Schedule of buildings and equipment under capital lease	The gross amount of buildings and equipment and related accumulated depreciation recorded under capital leases is presented below: December 31, 2017 2016 Buildings and equipment $ 48,936 $ 53,833 Less accumulated depreciation (12,972 ) (6,306 ) $ 35,964 $ 47,527
Cablevision Systems Corporation And Subsidiaries
Property, Plant and Equipment [Line Items]
Schedule of property, plant and equipment	Property, plant and equipment (including equipment under capital leases) consist of the following assets, which are depreciated or amortized on a straight-line basis over the estimated useful lives shown below: December 31, 2015 Estimated Useful Lives Customer equipment $ 1,952,336 3 to 5 years Headends and related equipment 2,388,289 4 to 25 years Infrastructure 5,639,226 3 to 25 years Equipment and software 1,577,616 3 to 10 years Construction in progress (including materials and supplies) 87,412 Furniture and fixtures 96,561 5 to 12 years Transportation equipment 210,013 5 to 18 years Buildings and building improvements 322,267 10 to 40 years Leasehold improvements 354,136 Term of lease Land 14,507 12,642,363 Less accumulated depreciation and amortization (9,625,348 ) $ 3,017,015
Schedule of buildings and equipment under capital lease	At December 31, 2015, the gross amount of equipment and related accumulated amortization recorded under capital leases was as follows: December 31, 2015 Equipment $ 90,099 Less accumulated amortization (28,119 ) $ 61,980

CVC - OPERATING LEASES (Tables)

CVC - OPERATING LEASES (Tables)	12 Months Ended
	Dec. 31, 2017
Cablevision Systems Corporation And Subsidiaries
Schedule of future minimum annual payments for all operating leases	The minimum future annual payments for all operating leases (with initial or remaining terms in excess of one year) during the next five years and thereafter, including pole rentals from January 1, 2017 through December 31, 2021, are as follows: 2017 $ 57,853 2018 52,206 2019 44,908 2020 41,221 2021 38,697 Thereafter 141,063

CVC - INTANGIBLE ASSETS (Tables

CVC - INTANGIBLE ASSETS (Tables)	12 Months Ended
	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Schedule of Acquired Finite-Lived Intangible Assets by Major Class	The following table summarizes information relating to the Company's acquired amortizable intangible assets: As of December 31, 2017 As of December 31, 2016 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Useful Lives Customer relationships $ 5,970,884 $ (1,409,021 ) $ 4,561,863 $ 5,925,884 $ (580,276 ) $ 5,345,608 8 to 18 years Trade names (a) 1,067,083 (588,574 ) 478,509 1,066,783 (83,397 ) 983,386 2 to 5 years Other amortizable intangibles 37,060 (10,978 ) 26,082 26,743 (3,093 ) 23,650 1 to 15 years $ 7,075,027 $ (2,008,573 ) $ 5,066,454 $ 7,019,410 $ (666,766 ) $ 6,352,644 (a) On May 23, 2017, Altice N.V. announced the adoption of a global brand to replace the Company's brands in the future, reducing the remaining useful lives of these trade name intangibles to three years from the date of the adoption, which reflected one year as an in-use asset and two years as a defensive asset. In December 2017, the Company made a decision to postpone the adoption of a global brand that would have replaced the Optimum brand, increasing the useful life of the Optimum trade name intangible asset to 5 years .
Schedule of Indefinite-Lived Intangible Assets	The following table summarizes information relating to the Company's acquired indefinite-lived intangible assets as of December 31, 2017 : As of December 31, 2017 As of December 31, 2016 Cablevision Cequel Total Cablevision Cequel Total Cable television franchises $ 8,113,575 $ 4,906,506 $ 13,020,081 $ 8,113,575 $ 4,906,506 $ 13,020,081 Goodwill 5,843,019 2,153,741 7,996,760 5,838,959 2,153,741 7,992,700 Total $ 13,956,594 $ 7,060,247 $ 21,016,841 $ 13,952,534 $ 7,060,247 $ 21,012,781
Schedule of Goodwill	The carrying amount of goodwill is presented below: Gross goodwill as of January 1, 2016 $ 2,040,402 Goodwill recorded in connection with Cablevision Acquisition 5,838,959 Adjustments to purchase accounting relating to Cequel Acquisition 113,339 Gross goodwill as of January 1, 2017 7,992,700 Goodwill recorded in connection with acquisitions in the first and fourth quarters of 2017 (Cablevision Segment) 23,948 Adjustments to purchase accounting relating to Cablevision Acquisition 3,213 Transfer of Cablevision goodwill related to Altice Technical Services US Corp. (See Note 14 for further details) (23,101 ) Net goodwill as of December 31, 2017 $ 7,996,760
Cablevision Systems Corporation And Subsidiaries
Acquired Finite-Lived Intangible Assets [Line Items]
Schedule of Acquired Finite-Lived Intangible Assets by Major Class	The following table summarizes information relating to the Company's acquired intangible assets: December 31, 2015 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Useful Lives Customer relationships $ 39,414 $ (27,778 ) $ 11,636 10 to 18 years Trade names — — — Other amortizable intangibles 57,847 (32,532 ) 25,315 3 to 28 years $ 97,261 $ (60,310 ) $ 36,951
Schedule of Indefinite-Lived Intangible Assets	The following table summarizes information relating to the Company's acquired indefinite-lived intangible assets: December 31, 2015 Cable television franchises $ 731,848 Trademarks and other assets 7,250 Goodwill 262,345 Total $ 1,001,443
Schedule of Goodwill	The carrying amount of goodwill is presented below: Gross goodwill as of December 31, 2015 (Predecessor) $ 596,403 Accumulated impairment losses (334,058 ) Net goodwill as of June 20, 2016 $ 262,345

CVC - DEBT (Tables)

CVC - DEBT (Tables)	12 Months Ended
	Dec. 31, 2017
Debt Instrument [Line Items]
Schedule of Line of Credit Facilities	The following table provides details of the Company's outstanding credit facility debt: Carrying Amount (a) Maturity Date Interest Rate Principal December 31, 2017 December 31, 2016 CSC Holdings Restricted Group: Revolving Credit Facility (b) $20,000 on October 9, 2020, remaining balance on November 30, 2021 4.75% $ 450,000 $ 425,488 $ 145,013 Term Loan Facility July 17, 2025 3.74% 2,985,000 2,967,818 2,486,874 Cequel: Revolving Credit Facility (c) November 30, 2021 — — — — Term Loan Facility July 28, 2025 3.82% 1,258,675 1,250,217 812,903 $ 4,693,675 4,643,523 3,444,790 Less: Current portion 42,650 33,150 Long-term debt $ 4,600,873 $ 3,411,640 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts. (b) At December 31, 2017 , $115,973 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $1,734,027 of the facility was undrawn and available, subject to covenant limitations. (c) At December 31, 2017 , $13,500 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $336,500 of the facility was undrawn and available, subject to covenant limitations.
Schedule of Long-term Debt Instruments	The following table summarizes the Company's senior guaranteed notes, senior secured notes and senior notes and debentures: Interest Rate Principal Amount Carrying Amount (a) Issuer Date Issued Maturity Date December 31, 2017 December 31, 2016 Senior notes: CSC Holdings (b)(f)(n) February 6, 1998 February 15, 2018 7.875 % $ 300,000 $ 301,184 $ 310,334 CSC Holdings (b)(f) July 21, 1998 July 15, 2018 7.625 % 500,000 507,744 521,654 CSC Holdings (c)(f) February 12, 2009 February 15, 2019 8.625 % 526,000 541,165 553,804 CSC Holdings (c)(f) November 15, 2011 November 15, 2021 6.750 % 1,000,000 960,146 951,702 CSC Holdings (c)(f) May 23, 2014 June 1, 2024 5.250 % 750,000 660,601 650,193 CSC Holdings (e) October 9, 2015 January 15, 2023 10.125 % 1,800,000 1,777,914 1,774,750 CSC Holdings (e)(l) October 9, 2015 October 15, 2025 10.875 % 1,684,221 1,661,135 1,970,379 Senior guaranteed notes: CSC Holdings (e) October 9, 2015 October 15, 2025 6.625 % 1,000,000 986,717 985,469 CSC Holdings (g) September 23, 2016 April 15, 2027 5.500 % 1,310,000 1,304,468 1,304,025 Senior notes: Cablevision (k)(o) September 23, 2009 September 15, 2017 8.625 % — — 926,045 Cablevision (c)(f)(n)(o) April 15, 2010 April 15, 2018 7.750 % 750,000 754,035 767,545 Cablevision (c)(f)(o) April 15, 2010 April 15, 2020 8.000 % 500,000 492,009 488,992 Cablevision (c)(f)(o) September 27, 2012 September 15, 2022 5.875 % 649,024 572,071 559,500 Senior notes: Cequel Communications Holdings I and Cequel Capital (d)(m)(p) Oct. 25, 2012 Dec. 28, 2012 September 15, 2020 6.375 % 1,050,000 1,027,493 1,457,439 Cequel Communications Holdings I and Cequel Capital (d)(p) May 16, 2013 Sept. 9, 2014 December 15, 2021 5.125 % 1,250,000 1,138,870 1,115,767 Cequel Communications Holdings I and Cequel Capital (i)(p) June 12, 2015 July 15, 2025 7.750 % 620,000 604,374 602,925 Senior secured notes: Altice US Finance I Corporation (h)(p) June 12, 2015 July 15, 2023 5.375 % 1,100,000 1,082,482 1,079,869 Altice US Finance I Corporation (j)(p) April 26, 2016 May 15, 2026 5.500 % 1,500,000 1,488,024 1,486,933 $ 16,289,245 15,860,432 17,507,325 Less: Current portion 507,744 926,045 Long-term debt $ 15,352,688 $ 16,581,280 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums. (b) The debentures are not redeemable by CSC Holdings prior to maturity. (c) Notes are redeemable at any time at a specified "make-whole" price plus accrued and unpaid interest to the redemption date. (d) The Company may redeem some or more of all the notes at the redemption price set forth in the relevant indenture, plus accrued and unpaid interest. (e) The Company may redeem some or all of the 2023 Notes at any time on or after January 15, 2019, and some or all of the 2025 Notes and 2025 Guaranteed Notes at any time on or after October 15, 2020, at the redemption prices set forth in the relevant indenture, plus accrued and unpaid interest, if any. The Company may also redeem up to 40% of each series of the Cablevision Acquisition Notes using the proceeds of certain equity offerings before October 15, 2018, at a redemption price equal to 110.125% for the 2023 Notes, 110.875% for the 2025 Notes and 106.625% for the 2025 Guaranteed Notes, in each case plus accrued and unpaid interest. In addition, at any time prior to January 15, 2019, CSC Holdings may redeem some or all of the 2023 Notes, and at any time prior to October 15, 2020, the Company may redeem some or all of the 2025 Notes and the 2025 Guaranteed Notes, at a price equal to 100% of the principal amount thereof, plus a “make whole” premium specified in the relevant indenture plus accrued and unpaid interest. (f) The carrying value of the notes was adjusted to reflect their fair value on the Cablevision Acquisition Date (aggregate reduction of $52,788 ). (g) The 2027 Guaranteed Notes are redeemable at any time on or after April 15, 2022 at the redemption prices set forth in the indenture, plus accrued and unpaid interest, if any. In addition, up to 40% may be redeemed for each series of the 2027 Guaranteed Notes using the proceeds of certain equity offerings before October 15, 2019, at a redemption price equal to 105.500% , plus accrued and unpaid interest. (h) Some or all of these notes may be redeemed at any time on or after July 15, 2018, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before July 15, 2018, at a redemption price equal to 105.375% . (i) Some or all of these notes may be redeemed at any time on or after July 15, 2020, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before July 15, 2018, at a redemption price equal to 107.750% . (j) Some or all of these notes may be redeemed at any time on or after May 15, 2021, plus accrued and unpaid interest, if any. Up to 40% of the notes may be redeemed using the proceeds of certain equity offerings before May 15, 2019, at a redemption price equal to 105.500% . (k) In April 2017, the Company redeemed $500,000 of the senior notes from proceeds from the CVC Term Loan facility. In September 2017, these senior notes matured and the Company repaid the remaining principal balance of $400,000 . (l) In July 2017, the Company used approximately $350,120 of the proceeds from the IPO to fund the redemption of $315,779 principal amount of CSC Holdings senior notes due October 2025 and the related call premium of approximately $34,341 which was recorded as a loss on extinguishment of debt. The Company also recorded a write-off of deferred financings costs in connection with this redemption aggregating $4,516 . (m) In April 2017, the Company redeemed $450,000 of the senior notes from proceeds from the Cequel Term Loan facility. (n) As a result of the repayment of these notes in February 2018, discussed in Note 20, the carrying amount of these Notes has been classified as long-term indebtedness. (o) The issuers of these notes have no ability to service interest or principal on the notes, other than through any dividends or distributions received from CSC Holdings. CSC Holdings is restricted, in certain circumstances, from paying dividends or distributions to the issuers by the terms of the CVC Credit Facilities Agreement. (p) The issuers of these notes have no ability to service interest or principal on the notes, other than through any contributions/distributions from Cequel Communications, LLC (an indirect subsidiary of Cequel and the parent of Altice US Finance I). Cequel Communications, LLC is restricted in certain circumstances, from paying dividends or distributions to the issuers by the terms of the Cequel Credit Facilities Agreement.
Schedule of Maturities of Long-term Debt	The future maturities of debt payable by the Company under its various debt obligations outstanding as of December 31, 2017 , including notes payable, collateralized indebtedness (see Note 10), and capital leases, are as follows: Years Ending December 31, Cablevision Cequel Total 2018 $ 1,619,094 $ 16,518 $ 1,635,612 2019 565,604 18,310 583,914 2020 552,902 1,062,713 1,615,615 2021 2,921,269 1,262,723 4,183,992 2022 680,700 12,734 693,434 Thereafter 9,380,513 4,416,270 13,796,783
Cablevision Systems Corporation And Subsidiaries
Debt Instrument [Line Items]
Schedule of Line of Credit Facilities	The following table provides details of the Company's outstanding credit facility debt (net of unamortized financing costs and unamortized discounts): Maturity Interest Rate Principal December 31, 2015 (a) Restricted Group: Term A loan facility (b) April 17, 2018 2.17% $ 886,621 $ 885,105 Term B loan facility (b) April 17, 2020 2.92% 1,159,031 1,150,227 Restricted Group Credit Facilities debt $ 2,035,332 (a) The unamortized discounts and deferred financing costs amounted to $11,200 at December 31, 2015. (b) In connection with the Merger, the Company repaid the then outstanding Term A and Term B loan facilities (see discussion above).
Schedule of Long-term Debt Instruments	The following table summarizes the Company's senior notes and debentures as of December 31, 2015: Interest Principal Carrying Issuer Date Issued Maturity Date Rate Amount Amount (c) CSC Holdings (a) February 6, 1998 February 15, 2018 7.875 % $ 300,000 $ 299,091 CSC Holdings (a) July 21, 1998 July 15, 2018 7.625 % 500,000 498,942 CSC Holdings (b) February 12, 2009 February 15, 2019 8.625 % 526,000 511,079 CSC Holdings (b) November 15, 2011 November 15, 2021 6.750 % 1,000,000 985,640 CSC Holdings (b) May 23, 2014 June 1, 2024 5.250 % 750,000 737,500 Cablevision (b) September 23, 2009 September 15, 2017 8.625 % 900,000 891,238 Cablevision (b) April 15, 2010 April 15, 2018 7.750 % 750,000 744,402 Cablevision (b) April 15, 2010 April 15, 2020 8.000 % 500,000 494,410 Cablevision (b) September 27, 2012 September 15, 2022 5.875 % 649,024 638,709 Total $ 5,801,011 (a) The debentures are not redeemable by the Company prior to maturity. (b) The Company may redeem some or all of the notes at any time at a specified "make-whole" price plus accrued and unpaid interest to the redemption date. (c) The carrying amount of the notes is net of the unamortized deferred financing costs and/or discounts/premiums.
Schedule of Maturities of Long-term Debt	Total amounts payable by the Company under its various debt obligations outstanding, including the debt transaction subsequent to the merger discussed above and including notes payable, collateralized indebtedness, and capital leases, during the periods shown below, are as follows: Years Ending December 31, 2017 $ 1,719,180 2018 2,103,441 2019 557,348 2020 526,340 2021 1,200,256 Thereafter 9,884,024

CVC - DERIVATIVE CONTRACTS AN84

CVC - DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS (Tables)	12 Months Ended
	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Location of Assets and Liabilities Associated With Derivative Instruments Within the Condensed Consolidated Balance Sheets	The following represents the location of the assets and liabilities associated with the Company's derivative instruments within the consolidated balance sheets: Asset Derivatives Liability Derivatives Derivatives Not Designated as Hedging Instruments Balance Sheet Location Fair Value at December 31, 2017 Fair Value at December 31, 2016 Fair Value at December 31, 2017 Fair Value at December 31, 2016 Prepaid forward contracts Derivative contracts, current $ 52,545 $ 352 $ (52,545 ) $ (13,158 ) Prepaid forward contracts Derivative contracts, long-term — 10,604 (109,504 ) — Interest rate swap contracts Liabilities under derivative contracts, long-term — — (77,902 ) (78,823 ) $ 52,545 $ 10,956 $ (239,951 ) $ (91,981 )
Schedule of Collateralized Debt Settlement	The following table summarizes the settlement of the Company's collateralized indebtedness relating to Comcast shares that were settled by delivering cash equal to the collateralized loan value, net of the value of the related equity derivative contracts during the year ended December 31, 2017 : Number of shares (a) 26,815,368 Collateralized indebtedness settled $ (774,703 ) Derivatives contracts settled (56,356 ) (831,059 ) Proceeds from new monetization contracts 838,794 Net cash proceeds $ 7,735 (a) Share amounts are adjusted for the 2 for 1 stock split in February 2017.
Cablevision Systems Corporation And Subsidiaries
Derivatives, Fair Value [Line Items]
Location of Assets and Liabilities Associated With Derivative Instruments Within the Condensed Consolidated Balance Sheets	The following represents the location of the assets and liabilities associated with the Company's derivative instruments within the consolidated balance sheets: Derivatives Not Designated as Hedging Instruments Balance Sheet Location Asset Derivatives Liability Derivatives Fair Value at December 31, 2015 Prepaid forward contracts Current derivative contracts $ 10,333 $ 2,706 Prepaid forward contracts Long-term derivative contracts 72,075 — $ 82,408 $ 2,706
Schedule of Collateralized Debt Settlement	The following table summarizes the settlement of the Company's collateralized indebtedness relating to Comcast shares that were settled by delivering cash equal to the collateralized loan value, net of the value of the related equity derivative contracts. January 1 to June 20, 2016 Year Ended December 31, 2015 Number of shares (a) 10,802,118 26,815,368 Collateralized indebtedness settled $ (273,519 ) $ (569,562 ) Derivative contracts settled (8,075 ) (69,675 ) (281,594 ) (639,237 ) Proceeds from new monetization contracts 337,149 774,703 Net cash receipt $ 55,555 $ 135,466

CVC - FAIR VALUE MEASUREMENT (T

CVC - FAIR VALUE MEASUREMENT (Tables)	12 Months Ended
	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table presents for each of these hierarchy levels, the Company's financial assets and financial liabilities that are measured at fair value on a recurring basis: Fair Value Hierarchy December 31, 2017 December 31, 2016 Assets: Money market funds (of which $14,700 is classified as restricted cash as of December 31, 2016) Level I $ 5,949 $ 100,139 Investment securities pledged as collateral Level I 1,720,357 1,483,030 Prepaid forward contracts Level II 52,545 10,956 Liabilities: Prepaid forward contracts Level II 162,049 13,158 Interest rate swap contracts Level II 77,902 78,823 Contingent consideration related to 2017 acquisitions Level III 32,233 —
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments	The carrying values, estimated fair values, and classification under the fair value hierarchy of the Company's financial instruments, excluding those that are carried at fair value in the accompanying consolidated balance sheets, are summarized as follows: December 31, 2017 December 31, 2016 Fair Value Hierarchy Carrying Amount (a) Estimated Fair Value Carrying Amount (a) Estimated Fair Value Altice USA debt instruments: Notes payable to affiliates and related parties Level II $ — $ — $ 1,750,000 $ 1,837,876 CSC Holdings debt instruments: Credit facility debt Level II 3,393,306 3,435,000 2,631,887 2,675,256 Collateralized indebtedness Level II 1,349,474 1,305,932 1,286,069 1,280,048 Senior guaranteed notes Level II 2,291,185 2,420,000 2,289,494 2,416,375 Senior notes and debentures Level II 6,409,889 7,221,846 6,732,816 7,731,150 Notes payable Level II 56,956 55,289 13,726 13,260 Cablevision senior notes Level II 1,818,115 1,931,239 2,742,082 2,920,056 Cequel debt instruments: Cequel credit facility Level II 1,250,217 1,258,675 812,903 815,000 Senior secured notes Level II 2,570,506 2,658,930 2,566,802 2,689,750 Senior notes Level II 2,770,737 2,983,615 3,176,131 3,517,275 Notes payable Level II 8,946 8,945 — — $ 21,919,331 $ 23,279,471 $ 24,001,910 $ 25,896,046 (a) Amounts are net of unamortized deferred financing costs and discounts/premiums.
Cablevision Systems Corporation And Subsidiaries
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table presents for each of these hierarchy levels, the Company's financial assets and financial liabilities that are measured at fair value on a recurring basis: At December 31, 2015 Level I Level II Level III Total Assets: Money market funds $ 922,765 $ — $ — $ 922,765 Investment securities 130 — — 130 Investment securities pledged as collateral 1,211,982 — — 1,211,982 Prepaid forward contracts — 82,408 — 82,408 Liabilities: Prepaid forward contracts — 2,706 — 2,706
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments	The carrying values, estimated fair values, and classification under the fair value hierarchy of the Company's financial instruments, excluding those that are carried at fair value in the accompanying consolidated balance sheets, are summarized as follows: December 31, 2015 Fair Value Hierarchy Carrying Amount Estimated Fair Value Debt instruments: Credit facility debt Level II $ 2,514,454 $ 2,525,654 Collateralized indebtedness Level II 1,191,324 1,176,396 Senior notes and debentures Level II 5,801,011 5,756,608 Notes payable Level II 14,544 14,483 Total debt instruments $ 9,521,333 $ 9,473,141

CVC - INCOME TAXES (Tables)

CVC - INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2017
Income Tax Expense (Benefit) Attributable to Continuing Operations	Income tax benefit attributable to the Company's operations for the years ended December 31, 2017 and 2016 consist of the following components: Years Ended December 31, 2017 2016 Current expense (benefit): Federal $ 5,657 $ (981 ) State 12,509 5,310 18,166 4,329 Deferred benefit: Federal (2,088,652 ) (223,159 ) State (782,492 ) (40,830 ) (2,871,144 ) (263,989 ) Tax benefit relating to uncertain tax positions 11 (6 ) Income tax benefit $ (2,852,967 ) $ (259,666 )
Reconciliation of Effective Tax Rate from Continuing Operations	The income tax benefit attributable to the Company's operations differs from the amount derived by applying the statutory federal rate to pretax loss principally due to the effect of the following items: Years Ended December 31, 2017 2016 Federal tax benefit at statutory rate $ (465,972 ) $ (381,901 ) State income taxes, net of federal impact (59,719 ) (39,336 ) Changes in the valuation allowance (111 ) 297 Impact of Federal Tax Reform (2,337,900 ) — Changes in the state rates used to measure deferred taxes, net of federal impact (12,896 ) 153,239 Tax benefit relating to uncertain tax positions (253 ) (120 ) Non-deductible share-based compensation related to the carried unit plan 20,101 5,029 Non-deductible Cablevision Acquisition transaction costs — 4,457 Other non-deductible expenses 3,349 1,551 Other, net 434 (2,882 ) Income tax benefit $ (2,852,967 ) $ (259,666 )
Significant Components of Deferred Tax Assets and Liabilities	The tax effects of temporary differences which give rise to significant portions of deferred tax assets or liabilities and the corresponding valuation allowance are as follows. December 31, 2017 2016 Noncurrent NOLs and tax credit carry forwards $ 784,334 $ 971,728 Compensation and benefit plans 48,280 93,939 Partnership investments 68,054 113,473 Restructuring liability 33,247 37,393 Other liabilities 38,140 45,561 Liabilities under derivative contracts 21,034 31,529 Interest deferred for tax purposes 128,516 39,633 Other 7,182 6,615 Deferred tax asset 1,128,787 1,339,871 Valuation allowance (3,000 ) (3,125 ) Net deferred tax asset, noncurrent 1,125,787 1,336,746 Fixed assets and intangibles (5,733,319 ) (9,065,635 ) Investments (113,628 ) (187,795 ) Prepaid expenses (8,007 ) (10,172 ) Fair value adjustments related to debt and deferred financing costs (40,215 ) (30,535 ) Other (5,733 ) (9,424 ) Deferred tax liability, noncurrent (5,900,902 ) (9,303,561 ) Total net deferred tax liability $ (4,775,115 ) $ (7,966,815 )
Reconciliation of Unrecognized Tax Benefits Associated with Uncertain Tax Positions, Excluding Associated Deferred Tax Benefits and Accrued Interest	A reconciliation of the beginning and ending amount of unrecognized tax benefits associated with uncertain tax positions, excluding associated deferred tax benefits and accrued interest, is as follows: Balance at January 1, 2016 $ 4,025 Increases related to prior year tax positions 11 Balance at December 31, 2017 $ 4,036
Cablevision Systems Corporation And Subsidiaries
Reconciliation of Unrecognized Tax Benefits Associated with Uncertain Tax Positions, Excluding Associated Deferred Tax Benefits and Accrued Interest	A reconciliation of the beginning and ending amount of unrecognized tax benefits associated with uncertain tax positions, excluding associated deferred tax benefits and accrued interest, is as follows: Balance at December 31, 2015 $ 4,022 Increases related to prior year tax positions 3 Increases related to current year tax positions 6 Balance at June 20, 2016 $ 4,031

CVC - BENEFIT PLANS (Tables)

CVC - BENEFIT PLANS (Tables)	12 Months Ended
	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Components of Net Benefit Cost for defined Benefit Plans	Components of the net periodic benefit cost, recorded in other operating expenses, for the Defined Benefit Plans for the years ended December 31, 2017 and 2016, is as follows: Years Ended December 31, 2017 2016 Interest cost $ 11,786 $ 6,946 Expected return on plan assets, net (4,907 ) (4,022 ) Curtailment loss 3,137 231 Settlement loss (income) (reclassified from accumulated other comprehensive loss) (a) 1,845 (154 ) Net periodic benefit cost $ 11,861 $ 3,001 (a) As a result of benefit payments to terminated or retired individuals exceeding the service and interest costs for the Pension Plan and the Excess Cash Balance Pension Plan during the year ended December 31, 2017 and during the period June 21, 2016 through December 31, 2016, the Company recognized a non-cash settlement loss that represented the acceleration of the recognition of a portion of the previously unrecognized actuarial losses recorded in accumulated other comprehensive loss on the Company’s consolidated balance sheet relating to these plans.
Plan Assumptions for Defined Benefit Plans	Weighted-average assumptions used to determine net periodic cost (made at the beginning of the year) and benefit obligations (made at the end of the year) for the Defined Benefit Plans are as follows: Net Periodic Benefit Cost Benefit Obligations at December 31, For the Year Ended December 31, 2017 For the Period June 21, 2016 to December 31, 2016 2017 2016 Discount rate (a) 3.69 % 3.53 % 3.50 % 3.81 % Rate of increase in future compensation levels — % — % — % — % Expected rate of return on plan assets (Pension Plan only) 3.90 % 3.97 % N/A N/A (a) The discount rate of 3.53% for the period June 21, 2016 through December 31, 2016, represents the average of the quarterly discount rates used to remeasure the Company's projected benefit obligation and net periodic benefit cost in connection with the recognition of settlement losses discussed above.
Fair Values of the Pension Plan Assets by Asset Category	The fair values of the assets of the Pension Plan at December 31, 2017 by asset class are as follows: Asset Class Level I Level II Level III Total Mutual funds $ 61,833 $ — $ — $ 61,833 Fixed income securities held in a portfolio: Foreign issued corporate debt — 10,721 — 10,721 U.S. corporate debt — 39,992 — 39,992 Government debt — 4,645 — 4,645 U.S. Treasury securities — 62,601 — 62,601 Asset-backed securities — 10,978 — 10,978 Other — — — — Cash equivalents (a) 6,691 2,782 — 9,473 Total (b) $ 68,524 $ 131,719 $ — $ 200,243 (a) A significant portion represents an investment in a short-term investment fund that invests primarily in securities of high quality and low risk. (b) Excludes cash and net payables relating to the purchase of securities that were not settled as of December 31, 2017. The fair values of the assets of the Pension Plan at December 31, 2016 by asset class are as follows: Asset Class Level I Level II Level III Total Mutual funds $ 121,356 $ — $ — $ 121,356 Fixed income securities held in a portfolio: Foreign issued corporate debt — 13,583 — 13,583 U.S. corporate debt — 48,046 — 48,046 Government debt — 4,810 — 4,810 U.S. Treasury securities — 77,285 — 77,285 Asset-backed securities — 14,065 — 14,065 Other — 247 — 247 Cash equivalents (a) 2,593 3,089 — 5,682 Total (b) $ 123,949 $ 161,125 $ — $ 285,074 (a) A significant portion represents an investment in a short-term investment fund that invests primarily in securities of high quality and low risk. (b) Excludes cash and net payables relating to the purchase of securities that were not settled as of December 31, 2016. The weighted average asset allocations of the Pension Plan at December 31, 2017 and 2016 were as follows: Plan Assets at December 31, 2017 2016 Asset Class: Mutual funds 32 % 43 % Fixed income securities 66 55 Cash equivalents and other 2 2 100 % 100 %
Cablevision Systems Corporation And Subsidiaries
Defined Benefit Plan Disclosure [Line Items]
Funded Status for All Qualified and Non-Qualified defined Benefit Plans	Summarized below is the funded status and the amounts recorded on the Company's consolidated balance sheets for all of the Company's Defined Benefit Plans at December 31, 2015: Change in projected benefit obligation: Projected benefit obligation at beginning of year $ 430,846 Service cost 344 Interest cost 15,523 Actuarial (gain) loss (14,912 ) Curtailments — Benefits paid (27,838 ) Projected benefit obligation at end of year 403,963 Change in plan assets: Fair value of plan assets at beginning of year 303,676 Actual return (loss) on plan assets, net (3,921 ) Employer contributions 25,929 Benefits paid (27,838 ) Fair value of plan assets at end of year 297,846 Unfunded status at end of year $ (106,117 )
Net Funded Status Relating to Defined Benefit Plans	The Company's net funded status relating to its Defined Benefit Plans at December 31, 2015 are as follows: Defined Benefit Plans $ (106,117 ) Less: Current portion related to nonqualified plans 6,889 Long-term defined benefit plan obligations $ (99,228 )
Components of Net Benefit Cost for defined Benefit Plans	Components of the net periodic benefit cost, recorded in other operating expenses, for the Defined Benefit Plans for the period January 1, 2016 to June 20, 2016 and for the year ended December 31, 2015, are as follows: January 1, 2016 to June 20, 2016 Year ended December 31, 2015 Service cost $ — $ 344 Interest cost 7,130 15,523 Expected return on plan assets, net (3,565 ) (8,297 ) Recognized actuarial loss (reclassified from accumulated other comprehensive loss) (1,446 ) 1,294 Settlement (income) loss (reclassified from accumulated other comprehensive loss) (a) 1,655 3,822 Net periodic benefit cost $ 3,774 $ 12,686 (a) As a result of benefit payments to terminated or retired individuals exceeding the service and interest costs for the Pension Plan and the Excess Cash Balance Pension Plan during the period January 1, 2016 through June 20, 2016, and year ended December 31, 2015, the Company recognized a non-cash settlement loss that represented the acceleration of the recognition of a portion of the previously unrecognized actuarial losses recorded in accumulated other comprehensive loss on the Company’s consolidated balance sheets relating to these plans.
Plan Assumptions for Defined Benefit Plans	Weighted-average assumptions used to determine net periodic cost (made at the beginning of the year) and benefit obligations (made at the end of the year) for the Defined Benefit Plans are as follows: Weighted-Average Assumptions Net Periodic Benefit Cost Benefit Obligations January 1, 2016 to June 20, 2016 Year ended December 31, 2015 December 31, 2015 Discount rate (a) 3.76 % 3.83 % 3.94 % Rate of increase in future compensation levels — % — % — % Expected rate of return on plan assets (Pension Plan only) 3.97 % 4.03 % N/A (a) The discount rates of 3.76% and 3.83%, for the period January 1, 2016 through June 20, 2016, and year ended December 31, 2015, respectively, represent the average of the quarterly discount rates used to remeasure the Company's projected benefit obligation and net periodic benefit cost in connection with the recognition of settlement losses discussed above.
Weighted Average Asset Allocations of Pension Plan	The weighted average asset allocations of the Pension Plan at December 31, 2015 are as follows: Plan Assets at 2015 Asset Class: Mutual funds 39 % Fixed income securities 61 Cash equivalents and other — 100 %
Fair Values of the Pension Plan Assets by Asset Category	The fair values of the assets of the Pension Plan at December 31, 2015 by asset class are as follows: Asset Class Level I Level II Level III Total Mutual funds $ 117,174 $ — $ — $ 117,174 Fixed income securities held in a portfolio: Foreign issued corporate debt — 12,825 — 12,825 U.S. corporate debt — 54,005 — 54,005 Government debt — 8,273 — 8,273 U.S. Treasury securities — 90,414 — 90,414 Asset-backed securities — 18,563 — 18,563 Cash equivalents (a) 893 — — 893 Total (b) $ 118,067 $ 184,080 $ — $ 302,147 (a) Represents an investment in a money market fund. (b) Excludes cash and net payables relating to the sale of securities that were not settled as of December 31, 2015.

CVC - EQUITY AND LONG-TERM IN88

CVC - EQUITY AND LONG-TERM INCENTIVE PLANS (Tables)	12 Months Ended
	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of assumptions were used to calculate the fair values of stock option awards granted	The following aggregate assumptions were used to calculate the fair values of stock option awards granted on December 30, 2017: Risk-free interest rate 2.30% Expected life (in years) 6.44 Dividend yield —% Volatility 33.95% Grant date fair value $8.77
Cablevision Systems Corporation And Subsidiaries
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of share-based compensation expense	The following table presents the share-based compensation expense recognized by the Company as other operating expenses: January 1, 2016 to June 20, 2016 Year ended December 31, 2015 Stock options $ 3,848 $ 9,159 Restricted shares and restricted stock units 20,930 51,162 Share-based compensation related to equity classified awards 24,778 60,321 Other share-based compensation 453 4,965 Total share-based compensation $ 25,231 $ 65,286
Schedule of assumptions were used to calculate the fair values of stock option awards granted	The following assumptions were used to calculate the fair values of stock option awards granted in the first quarter of 2015: 2015 Risk-free interest rate 1.82 % Expected life (in years) 8 Dividend yield 3.63 % Volatility 39.98 % Grant date fair value $ 5.45
Summary of activity relating of stock options	The following table summarizes activity relating to Company employees who held Cablevision stock options for the period January 1, 2016 to June 20, 2016 and for the year ended December 31, 2015: Shares Under Option Weighted Average Exercise Price Per Share Weighted Average Remaining Contractual Term (in years) Time Vesting Options Performance Based Vesting Options Aggregate Intrinsic Value (a) Balance, December 31, 2014 5,097,666 7,633,500 $ 14.41 7.17 $ 79,347 Granted 2,000,000 — 19.17 Exercised (353,666 ) (1,024,283 ) 12.84 Balance, December 31, 2015 6,744,000 6,609,217 15.28 6.80 221,900 Exercised (744,000 ) (728,517 ) 13.97 Balance, June 20, 2016 6,000,000 5,880,700 $ 15.45 (a) The aggregate intrinsic value is calculated as the difference between (i) the exercise price of the underlying award and (ii) the quoted price of CNYG Class A common stock on December 31, 2015, as indicated.
Summary of activity relating of restricted shares and restricted stock units	Restricted Stock Award Activity The following table summarizes activity relating to Company employees who held Cablevision restricted shares and restricted stock units for the period January 1, 2016 to June 20, 2016 and for the year ended December 31, 2015: Number of Restricted Shares Number of Performance Restricted Shares Number of Performance Based Restricted Stock Units ("PSU") (a) Weighted Average Fair Value Per Share at Date of Grant Unvested award balance, December 31, 2014 5,314,870 2,035,300 — $ 15.46 Granted 1,747,870 584,400 1,851,700 19.43 Vested (1,598,363 ) (739,600 ) — 14.48 Awards forfeited (496,629 ) — (79,270 ) 17.28 Unvested award balance, December 31, 2015 4,967,748 1,880,100 1,772,430 17.53 Vested (2,239,167 ) (753,296 ) — 15.35 Awards forfeited (85,900 ) — (47,490 ) 18.38 Unvested award balance, June 20, 2016 2,642,681 1,126,804 1,724,940 (a) The PSUs entitled the employee to shares of CNYG common stock up to 150% of the number of PSUs granted depending on the level of achievement of the specified performance criteria. If the minimum performance threshold was not met, no shares were issued. Accrued dividends were paid to the extent that a PSU vested and the related stock was issued.

CVC - RELATED PARTY TRANSACTION

CVC - RELATED PARTY TRANSACTIONS (Tables)	12 Months Ended
	Dec. 31, 2017
Related Party Transaction [Line Items]
Summary of related party transactions	The following table summarizes the revenue and charges related to services provided to or received from subsidiaries of Altice N.V. and Newsday: Years Ended December 31, 2017 2016 Revenue $ 2,205 $ 1,086 Operating expenses: Programming and other direct costs $ (4,176 ) $ (1,947 ) Other operating expenses, net (106,084 ) (18,854 ) Operating expenses, net (110,260 ) (20,801 ) Interest expense (see Note 9)(a) (90,405 ) (112,712 ) Loss on extinguishment of debt and write-off of deferred financing costs (see Note 9) (513,723 ) — Net charges $ (712,183 ) $ (132,427 ) Capital Expenditures $ 133,918 $ 45,886 (a) The 2016 amount includes $10,155 related to Holdco Notes prior to the exchange in addition to the interest related to notes payable to affiliates and related parties discussed in Note 9. Aggregate amounts that were due from and due to related parties are summarized below: December 31, 2017 2016 Due from: Altice US Finance S.A. (a) $ 12,951 $ 12,951 Newsday (b) 2,713 6,114 Altice Management Americas (b) 33 3,117 i24NEWS (b) 4,036 — Other Altice N.V. subsidiaries (b) 1,623 — $ 21,356 $ 22,182 Due to: CVC 3BV (c) $ — $ 71,655 Neptune Holdings US LP (c) — 7,962 Altice Management International (d) — 44,121 ATS (b)(e) 2,948 — Newsday (b) 33 275 Altice Labs S.A. (d) 7,354 866 Other Altice N.V. subsidiaries (f) 3,611 2,484 $ 13,946 $ 127,363 (a) Represents interest on senior notes paid by the Company on behalf of the affiliate. (b) Represents amounts paid by the Company on behalf of the respective related party and for Newsday and ATS, the net amounts due from the related party also include charges for certain transition services provided. (c) Represents distributions payable to stockholders. (d) Amounts payable as of December 31, 2016 primarily represent amounts due for equipment purchases and/or software development services discussed above. (e) Represents amounts due to ATS for construction, maintenance, and installation services, net of charges to ATS pursuant to the TSA. See discussion above. (f) Represents amounts due to affiliates for services provided to the Company.
Cablevision Systems Corporation And Subsidiaries
Related Party Transaction [Line Items]
Summary of related party transactions	The following table summarizes the revenue and charges (credits) related to services provided to or received from AMC Networks, Madison Square Garden Company and MSG Networks for the Predecessor periods: January 1, 2016 to June 20, 2016 Year Ended December 31, 2015 Revenue $ 2,088 $ 5,343 Operating expenses: Programming and other direct costs, net of credits $ 84,636 $ 176,909 Other operating expenses, net of credits 2,182 5,372 Operating expenses, net 86,818 182,281 Net charges $ 84,730 $ 176,938 Aggregate amounts that were due from and due to AMC Networks, Madison Square Garden and MSG Networks and other affiliates at December 31, 2015 (Predecessor) is summarized below: December 31, 2015 Amounts due from affiliates $ 767 Amounts due to affiliates 29,729

CVC - INTERIM FINANCIAL INFOR90

CVC - INTERIM FINANCIAL INFORMATION (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2017
Selected Quarterly Financial Information
Selected Quarterly Financial Information	The following is a summary of the Company's selected quarterly financial data for the years ended December 31, 2017 and 2016: March 31, 2017 June 30, 2017 September 30, 2017 December 31, 2017 (a) Total 2017 Revenues, net $ 2,305,676 $ 2,328,341 $ 2,327,175 $ 2,365,378 $ 9,326,570 Operating expenses (2,057,442 ) (2,071,559 ) (2,192,311 ) (2,139,874 ) (8,461,186 ) Operating income $ 248,234 $ 256,782 $ 134,864 $ 225,504 $ 865,384 Net income (loss) $ (76,188 ) $ (474,790 ) $ (182,086 ) $ 2,254,682 $ 1,521,618 Net income attributable to noncontrolling interests (237 ) (365 ) (135 ) (850 ) (1,587 ) Net income (loss) attributable to Altice USA Inc.'s stockholders $ (76,425 ) $ (475,155 ) $ (182,221 ) $ 2,253,832 $ 1,520,031 Basic and diluted net income (loss) per share attributable to Altice USA Inc.'s stockholders $ (0.12 ) $ (0.72 ) $ (0.25 ) $ 3.06 $ 2.18 (a) Pursuant to the enactment of the Tax Reform on December 22, 2017, the Company recorded a noncash deferred tax benefit of $2,337,900 to remeasure the net deferred tax liability to adjust for the reduction in the corporate federal income tax rate 35% to 21% which is effective on January 1, 2018. March 31, 2016 June 30, 2016 September 30, 2016 December 31, 2016 Total 2016 Revenues, net $ 627,589 $ 823,501 $ 2,260,221 $ 2,305,901 $ 6,017,212 Operating expenses (573,329 ) (778,098 ) (2,117,442 ) (2,088,677 ) (5,557,546 ) Operating income $ 54,260 $ 45,403 $ 142,779 $ 217,224 $ 459,666 Net loss $ (140,748 ) $ (282,129 ) $ (172,553 ) $ (236,049 ) $ (831,479 ) Net loss (income) attributable to noncontrolling interests — 364 (256 ) (659 ) (551 ) Net loss attributable to Altice USA, Inc. stockholders $ (140,748 ) $ (281,765 ) $ (172,809 ) $ (236,708 ) $ (832,030 ) Basic and diluted net loss per share attributable to Altice USA Inc.'s stockholders $ (0.22 ) $ (0.43 ) $ (0.27 ) $ (0.36 ) $ (1.28 )
Cablevision Systems Corporation And Subsidiaries
Selected Quarterly Financial Information
Selected Quarterly Financial Information	The following is a summary of the Company's selected quarterly financial data: Predecessor 2016: March 31, 2016 April 1 to June 20, 2016 Revenue $ 1,645,890 $ 1,491,714 Operating expenses (1,394,635 ) (1,267,663 ) Operating income $ 251,255 $ 224,051 Net income $ 94,311 $ 69,201 Net loss attributable to noncontrolling interests 66 170 Net income attributable to Cablevision Systems Corporation stockholders $ 94,377 $ 69,371 Basic income per share attributable to Cablevision Systems Corporation stockholders: Income from continuing operations, net of income taxes $ 0.35 $ 0.25 Loss from discontinued operations, net of income taxes $ — $ — Net income $ 0.35 $ 0.25 Diluted income per share attributable to Cablevision Systems Corporation stockholders: Income from continuing operations, net of income taxes $ 0.34 $ 0.25 Loss from discontinued operations, net of income taxes $ — $ — Net income $ 0.34 $ 0.25 Amounts attributable to Cablevision Systems Corporation stockholders: Income from continuing operations, net of income taxes $ 94,377 $ 69,371 Loss from discontinued operations, net of income taxes — — Net income $ 94,377 $ 69,371 Predecessor 2015: March 31, 2015 June 30, 2015 September 30, 2015 December 31, 2015 Total 2015 Revenue $ 1,622,352 $ 1,661,940 $ 1,624,828 $ 1,636,425 $ 6,545,545 Operating expenses (1,398,601 ) (1,417,476 ) (1,441,712 ) (1,439,285 ) (5,697,074 ) Operating income $ 223,751 $ 244,464 $ 183,116 $ 197,140 $ 848,471 Income from continuing operations, net of income taxes $ 54,901 $ 75,676 $ 23,431 $ 33,781 $ 187,789 Income (loss) from discontinued operations, net of income taxes (10,502 ) — (406 ) (1,633 ) (12,541 ) Net income 44,399 75,676 23,025 32,148 175,248 Net loss (income) attributable to noncontrolling interests 234 (81 ) 78 (30 ) 201 Net income attributable to Cablevision Systems Corporation stockholders $ 44,633 $ 75,595 $ 23,103 $ 32,118 $ 175,449 Basic income per share attributable to Cablevision Systems Corporation stockholders: Income from continuing operations, net of income taxes $ 0.21 $ 0.28 $ 0.09 $ 0.12 $ 0.70 Income (loss) from discontinued operations, net of income taxes $ (0.04 ) $ — $ — $ (0.01 ) $ (0.05 ) Net income $ 0.17 $ 0.28 $ 0.09 $ 0.12 $ 0.65 Diluted income per share attributable to Cablevision Systems Corporation stockholders: Income from continuing operations, net of income taxes $ 0.20 $ 0.27 $ 0.08 $ 0.12 $ 0.68 Income (loss) from discontinued operations, net of income taxes $ (0.04 ) $ — $ — $ (0.01 ) $ (0.05 ) Net income $ 0.16 $ 0.27 $ 0.08 $ 0.12 $ 0.63 Amounts attributable to Cablevision Systems Corporation stockholders: Income from continuing operations, net of income taxes $ 55,135 $ 75,595 $ 23,509 $ 33,751 $ 187,990 Income (loss) from discontinued operations, net of income taxes (10,502 ) — (406 ) (1,633 ) (12,541 ) Net income $ 44,633 $ 75,595 $ 23,103 $ 32,118 $ 175,449

CVC - BUSINESS COMBINATION (Tab

CVC - BUSINESS COMBINATION (Tables)	12 Months Ended
	Dec. 31, 2017
Business Acquisition [Line Items]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table provides the allocation of the total purchase price of $9,958,323 to the identifiable tangible and intangible assets and liabilities of Cablevision based on their respective fair values. The remaining useful lives represent the period over which acquired tangible and intangible assets with a finite life are being depreciated or amortized. Fair Values Estimated Useful Lives Current assets $ 1,923,071 Accounts receivable 271,305 Property, plant and equipment 4,864,621 2-18 years Goodwill 5,842,172 Indefinite-lived cable television franchises 8,113,575 Indefinite-lived Customer relationships 4,850,000 8 to 18 years Trade names (a) 1,010,000 12 years Amortizable intangible assets 23,296 1-15 years Other non-current assets 748,998 Current liabilities (2,311,201 ) Long-term debt (8,355,386 ) Deferred income taxes. (6,832,773 ) Other non-current liabilities (189,355 ) Total $ 9,958,323 (a) See Note 8 for additional information regarding a change in the remaining estimated useful lives of the Company's trade names.
Schedule of future amortization expense	The following table sets forth the estimated amortization expense on intangible assets for the periods presented: Estimated amortization expense Year Ending December 31, 2018 $ 873,133 Year Ending December 31, 2019 777,846 Year Ending December 31, 2020 696,240 Year Ending December 31, 2021 616,718 Year Ending December 31, 2022 537,100
Business Acquisition, Pro Forma Information	The following table presents the unaudited pro forma revenue and net loss for the period presented as if the Cablevision Acquisition had occurred on January 1, 2016: Year Ended December 31, 2016 Revenue $ 9,154,816 Net loss $ (721,257 )
Cablevision Systems Corporation And Subsidiaries
Business Acquisition [Line Items]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table provides the preliminary allocation of the total purchase price of $9,958,323 to the identifiable tangible and intangible assets and liabilities of Cablevision based on preliminary fair value information currently available, which is subject to change within the measurement period (up to one year from the acquisition date). Estimates of Fair Values (As of December 31, 2016) Estimated Useful Lives Current assets $ 1,923,071 Accounts receivable 271,305 Property, plant and equipment 4,864,621 2-18 years Goodwill 5,838,959 Indefinite-lived cable television franchises 8,113,575 Indefinite-lived Customer relationships 4,850,000 8 to 18 years Trade names 1,010,000 12 years Amortizable intangible assets 23,296 1-15 years Other non-current assets 748,998 Current liabilities (2,305,954 ) Long-term debt (8,355,386 ) Deferred income taxes. (6,834,807 ) Other non-current liabilities (189,355 ) Total $ 9,958,323
Schedule of future amortization expense	The following table sets forth the estimated amortization expense on the intangible assets recorded in the connection with the Merger for the years ending December 31: Estimated amortization expense Year Ending December 31, 2017 $ 701,908 Year Ending December 31, 2018 655,409 Year Ending December 31, 2019 609,245 Year Ending December 31, 2020 562,613 Year Ending December 31, 2021 515,430
Business Acquisition, Pro Forma Information	The unaudited pro forma revenue, loss from continuing operations and net loss for the years ended December 31, 2015, as if the Merger had occurred on January 1, 2015, are as follows: Revenue $ 6,545,545 Loss from continuing operations $ (740,115 ) Net loss $ (752,656 )

DESCRIPTION OF BUSINESS AND R92

DESCRIPTION OF BUSINESS AND RELATED MATTERS - Narrative (Details)

Jan. 08, 2018USD ($)

May 31, 2017USD ($)

Jun. 21, 2016USD ($)

Dec. 21, 2015USD ($)

Sep. 16, 2015USD ($)$ / shares

Jan. 31, 2018USD ($)

Jul. 31, 2017USD ($)

Jun. 30, 2017USD ($)$ / sharesshares

Jun. 30, 2017USD ($)$ / shares

Dec. 31, 2017USD ($)segment$ / shares

Dec. 31, 2016USD ($)$ / shares

Feb. 28, 2018

Oct. 31, 2015USD ($)

Oct. 12, 2012USD ($)

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Number of reportable business segments | segment

2

Business Acquisition [Line Items]

Transfer of Goodwill to an Affiliate in Connection With the Transfer of a Substantial Portion of the Company's Workforce

$ 23,101,000

Business Combination, Description [Abstract]

Price per share | $ / shares

$ 30

$ 30

Percentage of issued stock owned by the parent company

70.20%

70.20%

Voting power of parent company, percentage

98.20%

98.20%

Proceeds from issuance or sale of equity

$ 362,069,000

Underwriting discount and share issuance expense

12,998,000

Senior Notes

15,860,432,000

$ 17,507,325,000

Conversion of notes payable to affiliates and related parties to common stock

$ 2,264,252,000

$ 0

Common stock, par value (in dollars per share) | $ / shares

$ 0.01

$ 0.01

Principal Amount

$ 4,693,675,000

Line of credit facility, aggregate principal amount

$ 480,000,000

Cash distributions to shareholders

$ 839,700,000

840,035,000

$ 445,176,000

10.875% Notes due October 15, 2025

Business Combination, Description [Abstract]

Stated interest rate

10.875%

Senior Notes

Business Combination, Description [Abstract]

Principal Amount

16,289,245,000

Senior Notes | 10.125% Notes due January 15, 2023

Business Combination, Description [Abstract]

Senior Notes

$ 1,777,914,000

1,774,750,000

Stated interest rate

10.125%

Principal Amount

$ 1,800,000,000

Senior Notes | 10.875% Notes due October 15, 2025

Business Combination, Description [Abstract]

Senior Notes

$ 315,779,000

$ 1,661,135,000

1,970,379,000

Stated interest rate

10.875%

Gain (loss) on extinguishment of debt

(34,341,000)

Principal Amount

$ 2,000,000,000

$ 2,000,000,000

$ 1,684,221,000

Senior Notes | 6.625% Notes due October 15, 2025

Business Combination, Description [Abstract]

Senior Notes

$ 986,717,000

$ 985,469,000

Stated interest rate

6.625%

Principal Amount

$ 1,000,000,000

Common Class A

Business Combination, Description [Abstract]

Number of shares issued (in shares) | shares

71,724,139

Initial public offering shares sold by company | shares

12,068,966

Initial public offering shares sold by existing shareholders (in shares) | shares

59,655,173

Common stock, par value (in dollars per share) | $ / shares

$ 0.01

Common Class B

Business Combination, Description [Abstract]

Common stock, par value (in dollars per share) | $ / shares

0.01

Affiliates | Notes payable

Business Combination, Description [Abstract]

Principal Amount

$ 1,750,000,000

Cablevision Systems Corp.

Business Combination, Description [Abstract]

Business acquisition, share price (dollars per share) | $ / shares

$ 34.90

Consideration transfered

9,958,323,000

Cablevision Systems Corp. | Common Class A

Business Combination, Description [Abstract]

Common stock, par value (in dollars per share) | $ / shares

0.01

Cablevision Systems Corp. | Common Class B

Business Combination, Description [Abstract]

Common stock, par value (in dollars per share) | $ / shares

$ 0.01

Cablevision Systems Corp. | Neptune Finco Corp. | Term Loan | Senior Secured Credit Facilities

Business Combination, Description [Abstract]

Principal Amount

$ 3,800,000,000

Cablevision Systems Corp. | Neptune Finco Corp. | Term Loan | Revolving Credit Facility | Senior Secured Credit Facilities

Business Combination, Description [Abstract]

Line of credit facility, aggregate principal amount

$ 2,000,000,000

Cablevision Systems Corp. | Neptune Finco Corp. | Senior Notes | 10.125% Notes due January 15, 2023

Business Combination, Description [Abstract]

Stated interest rate

10.125%

Principal Amount

$ 1,800,000,000

Cablevision Systems Corp. | Neptune Finco Corp. | Senior Notes | 10.875% Notes due October 15, 2025

Business Combination, Description [Abstract]

Stated interest rate

10.875%

Principal Amount

$ 2,000,000,000

Cablevision Systems Corp. | Neptune Finco Corp. | Senior Notes | 6.625% Notes due October 15, 2025

Business Combination, Description [Abstract]

Stated interest rate

6.625%

Principal Amount

$ 1,000,000,000

Cablevision Systems Corp. | Affiliates

Business Combination, Description [Abstract]

Consideration transfered

$ 1,000,000,000

Indirect ownership interest by co-investors

30.00%

Cablevision Systems Corp. | Affiliates | Notes payable

Business Combination, Description [Abstract]

Principal Amount

$ 1,750,000,000

Cablevision Systems Corp. | Affiliates | Notes payable | Notes Payable at 10.75%

Business Combination, Description [Abstract]

Stated interest rate

10.75%

Principal Amount

$ 875,000,000

Cablevision Systems Corp. | Affiliates | Notes payable | Notes Payable at 11%

Business Combination, Description [Abstract]

Stated interest rate

11.00%

Principal Amount

$ 875,000,000

Cequel Corp.

Business Combination, Description [Abstract]

Consideration transfered

$ 3,973,528,000

Percentage of shares acquired

70.00%

Cash consideration

$ 2,797,928,000

Retained equity

$ 675,600,000

Ownership percentage by noncontrolling owners

30.00%

Cequel Corp. | Affiliates | Senior Notes

Business Combination, Description [Abstract]

Consideration transferred, debt issuance by an affiliate of parent company

$ 500,000,000

Over-Allotment Option

Business Combination, Description [Abstract]

Number of shares issued (in shares) | shares

7,781,110

IPO

Business Combination, Description [Abstract]

Consideration received on transaction, used to repay long term debt

$ 350,120,000

Co-investors

Business Combination, Description [Abstract]

Conversion of notes payable to affiliates and related parties to common stock

$ 525,000,000

Subsidiary of Altice N.V.

Business Combination, Description [Abstract]

Conversion of notes payable to affiliates and related parties to common stock

$ 1,225,000,000

Subsequent Event

Business Combination, Description [Abstract]

Cash distributions to shareholders

$ 1,500,000,000

Stock repurchase program, authorized amount

$ 2,000,000,000

Subsequent Event | Altice Technical Services

Business Combination, Description [Abstract]

Percentage of shares acquired

100.00%

Percentage of voting interest acquired

70.00%

Consideration transferred

$ 1

Fees for Executive Services | Affiliates

Business Combination, Description [Abstract]

Related party transaction, annual fee

$ 30,000,000

DESCRIPTION OF BUSINESS AND R93

DESCRIPTION OF BUSINESS AND RELATED MATTERS - Retroactive Consolidation of ATS (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Revenues, net	$ 2,365,378	$ 2,327,175	$ 2,328,341	$ 2,305,676	$ 2,305,901	$ 2,260,221	$ 823,501	$ 627,589	$ 9,326,570	$ 6,017,212
Operating expenses	2,139,874	2,192,311	2,071,559	2,057,442	2,088,677	2,117,442	778,098	573,329	8,461,186	5,557,546
Operating income	$ 225,504	$ 134,864	$ 256,782	$ 248,234	$ 217,224	$ 142,779	$ 45,403	$ 54,260	865,384	$ 459,666
Pro Forma
Revenues, net									9,325,465
Operating expenses									8,482,728
Operating income									$ 842,737

SUMMARY OF SIGNIFICANT ACCOUN94

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ / shares in Units, $ in Thousands	Jan. 08, 2018USD ($)	Jun. 30, 2017USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2017USD ($)vote$ / sharesshares	Dec. 31, 2016USD ($)$ / sharesshares
Accounting Policies [Abstract]
Franchise fees and other taxes and fees				$ 259,075	$ 154,732
Advertising costs				224,120	$ 135,513
Unrealized excess tax benefits recognized with the adoption of ASU 2016-09				$ 310,771
Class of Stock [Line Items]
Common stock, shares outstanding (in shares) | shares					100
Common stock, par value (in dollars per share) | $ / shares				$ 0.01	$ 0.01
Common stock conversion ratio				1
Cash distributions to shareholders		$ 839,700		$ 840,035	$ 445,176
Payments of dividends			$ 79,617	$ 919,317	$ 365,559
Antidilutive securities | shares				14,000
Common Class A
Class of Stock [Line Items]
Common stock, shares outstanding (in shares) | shares				246,982,292
Common stock, par value (in dollars per share) | $ / shares				$ 0.01
Common stock number of votes per share | vote				1
Common Class B
Class of Stock [Line Items]
Common stock, shares outstanding (in shares) | shares				490,086,674
Common stock, par value (in dollars per share) | $ / shares				$ 0.01
Common stock number of votes per share | vote				25
Subsequent Event
Class of Stock [Line Items]
Cash distributions to shareholders	$ 1,500,000

SUMMARY OF SIGNIFICANT ACCOUN95

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reconciliation of Weighted Average Shares (Details) - shares	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Basic weighted average common shares (in thousands) (in shares)		696,055,000	649,525,000
Effect of dilution:
Stock options (in shares)		0
Diluted weighted average common shares (in shares)	696,055,000	696,055,000	649,525,000

BUSINESS COMBINATIONS - Assets

BUSINESS COMBINATIONS - Assets and Liabilities Acquired (Details) - USD ($) $ in Thousands	Jun. 21, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Goodwill		$ 7,996,760	$ 7,992,700	$ 2,040,402
Cablevision Systems Corp.
Business Acquisition [Line Items]
Current assets	$ 1,923,071
Accounts receivable	271,305
Property, plant and equipment	4,864,621
Goodwill	5,842,172
Indefinite-lived cable television franchises	8,113,575
Other non-current assets	748,998
Current liabilities	(2,311,201)
Long-term debt	(8,355,386)
Deferred income taxes.	(6,832,773)
Other non-current liabilities	(189,355)
Total	9,958,323
Customer relationships | Cablevision Systems Corp.
Business Acquisition [Line Items]
Finite-lived intangible assets	4,850,000
Trade names | Cablevision Systems Corp.
Business Acquisition [Line Items]
Finite-lived intangible assets	$ 1,010,000
Finite-lived intangible asset, useful life	12 years
Amortizable intangible assets | Cablevision Systems Corp.
Business Acquisition [Line Items]
Finite-lived intangible assets	$ 23,296
Minimum | Cablevision Systems Corp.
Business Acquisition [Line Items]
Property, plant and equipment, useful life	2 years
Minimum | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		8 years
Minimum | Customer relationships | Cablevision Systems Corp.
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	8 years
Minimum | Trade names
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		2 years
Minimum | Amortizable intangible assets
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		1 year
Minimum | Amortizable intangible assets | Cablevision Systems Corp.
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	1 year
Maximum | Cablevision Systems Corp.
Business Acquisition [Line Items]
Property, plant and equipment, useful life	18 years
Maximum | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		18 years
Maximum | Customer relationships | Cablevision Systems Corp.
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	18 years
Maximum | Trade names
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		5 years
Maximum | Amortizable intangible assets
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		15 years
Maximum | Amortizable intangible assets | Cablevision Systems Corp.
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	15 years

BUSINESS COMBINATIONS - Narrati

BUSINESS COMBINATIONS - Narrative (Details) - USD ($) $ in Thousands	Jun. 21, 2016	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Goodwill acquired		$ 23,948	$ 5,838,959
Cablevision Systems Corp.
Business Acquisition [Line Items]
Consideration transfered	$ 9,958,323
2017 Acquisition
Business Acquisition [Line Items]
Consideration transfered		80,000
Goodwill acquired		23,948
Customer relationships | 2017 Acquisition
Business Acquisition [Line Items]
Amortizable intangible assets acquired		45,000
Other amortizable intangible assets | 2017 Acquisition
Business Acquisition [Line Items]
Amortizable intangible assets acquired		$ 9,400

BUSINESS COMBINATIONS - Pro For

BUSINESS COMBINATIONS - Pro Forma Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)
Business Combinations [Abstract]
Revenue	$ 9,154,816
Net loss	$ (721,257)

SUPPLEMENTAL CASH FLOW INFORM99

SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Jun. 21, 2016
Continuing Operations:
Conversion of notes payable to affiliates and related parties of $1,750,000 (together with accrued and unpaid interest and applicable premium) to common stock (See Note 9)	$ 2,264,252,000	$ 0
Property and equipment accrued but unpaid	171,604,000	155,653,000
Distributions declared but not paid	0	79,617,000
Leasehold improvements paid by landlord	3,998,000	0
Notes payable to vendor	40,131,000	12,449,000
Capital lease obligations	9,385,000	0
Deferred financing costs accrued but unpaid	0	2,570,000
Supplemental Data:
Cash interest paid	1,765,126,000	1,192,370,000
Income taxes paid, net	29,006,000	$ 1,538,000
Debt Instrument [Line Items]
Principal Amount	$ 4,693,675,000
Affiliates | Notes payable
Debt Instrument [Line Items]
Principal Amount			$ 1,750,000,000

RESTRUCTURING AND OTHER EXPE100

RESTRUCTURING AND OTHER EXPENSE (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Restructuring Reserve [Roll Forward]
Accrual, beginning balance	$ 110,516
Restructuring charges	149,922	$ 226,577
Payments and other	(137,338)	(116,061)
Accrual, ending balance	123,100	110,516
Transaction costs	2,479	13,845
Severance and Other Employee Related Costs
Restructuring Reserve [Roll Forward]
Accrual, beginning balance	102,119
Restructuring charges	142,679	215,420
Payments and other	(131,324)	(113,301)
Accrual, ending balance	113,474	102,119
Facility Realignment and Other Costs
Restructuring Reserve [Roll Forward]
Accrual, beginning balance	8,397
Restructuring charges	7,243	11,157
Payments and other	(6,014)	(2,760)
Accrual, ending balance	9,626	$ 8,397
Cablevision Systems Corp.
Restructuring Reserve [Roll Forward]
Cumulative restructuring costs	309,297
Cequel Corp.
Restructuring Reserve [Roll Forward]
Cumulative restructuring costs	$ 67,202

PROPERTY, PLANT AND EQUIPMENT -

PROPERTY, PLANT AND EQUIPMENT - Summary (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 8,663,408	$ 7,636,932
Less accumulated depreciation and amortization	(2,599,579)	(1,039,297)
Property, plant and equipment, net	6,063,829	6,597,635
Customer premise equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,093,726	871,049
Customer premise equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Customer premise equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Headends and related equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,626,293	1,482,631
Headends and related equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	4 years
Headends and related equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	25 years
Infrastructure
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 3,998,503	3,740,494
Infrastructure | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Infrastructure | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	25 years
Equipment and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 917,698	735,012
Equipment and software | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Equipment and software | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years
Construction in progress (including materials and supplies)
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 286,702	84,321
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 52,545	45,576
Furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	12 years
Transportation equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 137,886	135,488
Transportation equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Transportation equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years
Buildings and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 394,421	390,337
Buildings and building improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years
Buildings and building improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	40 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 108,071	104,309
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 47,563	$ 47,715

PROPERTY, PLANT AND EQUIPMEN102

PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Depreciation	$ 1,588,668	$ 1,046,896
Plant | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years
Plant | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	25 years
Headends and related equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	4 years
Headends and related equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	25 years
Installation costs | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Installation costs | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Acquisition and development of internal use software
Property, Plant and Equipment [Line Items]
Property, plant and equipment capitalized	$ 151,646	$ 75,804

PROPERTY, PLANT AND EQUIPMEN103

PROPERTY, PLANT AND EQUIPMENT - Capital Leased Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Buildings and equipment	$ 48,936	$ 53,833
Less accumulated depreciation	(12,972)	(6,306)
Capital leased assets, net	$ 35,964	$ 47,527

OPERATING LEASES - Narrative (D

OPERATING LEASES - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Leases [Abstract]
Rent expense	$ 95,017	$ 65,881

OPERATING LEASES - Future Minim

OPERATING LEASES - Future Minimum Lease Payments (Details) $ in Thousands	Dec. 31, 2017USD ($)
Leases [Abstract]
2,018	$ 74,992
2,019	72,142
2,020	69,203
2,021	63,735
2,022	55,234
Thereafter	$ 140,406

INTANGIBLE ASSETS - Summary of

INTANGIBLE ASSETS - Summary of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 7,075,027	$ 7,075,027	$ 7,019,410
Accumulated Amortization	(2,008,573)	(2,008,573)	(666,766)
Net Carrying Amount	5,066,454	5,066,454	6,352,644
Amortization expense, 2018	873,133	873,133
Amortization expense, 2019	777,846	777,846
Amortization expense, 2020	696,240	696,240
Amortization expense, 2021	616,718	616,718
Amortization expense, 2022	537,100	537,100
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,970,884	5,970,884	5,925,884
Accumulated Amortization	(1,409,021)	(1,409,021)	(580,276)
Net Carrying Amount	4,561,863	4,561,863	5,345,608
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,067,083	1,067,083	1,066,783
Accumulated Amortization	(588,574)	(588,574)	(83,397)
Net Carrying Amount	$ 478,509	$ 478,509	983,386
Remaining amortization period	5 years	3 years
Remaining amortization period, in-use period		1 year
Remaining amortization period, defensive asset		2 years
Other amortizable intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 37,060	$ 37,060	26,743
Accumulated Amortization	(10,978)	(10,978)	(3,093)
Net Carrying Amount	$ 26,082	$ 26,082	$ 23,650
Minimum | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life		8 years
Minimum | Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life		2 years
Minimum | Other amortizable intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life		1 year
Maximum | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life		18 years
Maximum | Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life		5 years
Maximum | Other amortizable intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life		15 years

INTANGIBLE ASSETS - Narrative (

INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 10,316	$ 1,341,807	$ 653,410	$ 7,812

INTANGIBLE ASSETS - Summary 108

INTANGIBLE ASSETS - Summary of Acquired Indefinite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Acquired Indefinite-lived Intangible Assets [Line Items]
Cable television franchises	$ 13,020,081	$ 13,020,081
Goodwill	7,996,760	7,992,700	$ 2,040,402
Total	21,016,841	21,012,781
Cablevision Systems Corp.
Acquired Indefinite-lived Intangible Assets [Line Items]
Cable television franchises	8,113,575	8,113,575
Goodwill	5,843,019	5,838,959
Total	13,956,594	13,952,534
Cequel Corp.
Acquired Indefinite-lived Intangible Assets [Line Items]
Cable television franchises	4,906,506	4,906,506
Goodwill	2,153,741	2,153,741
Total	$ 7,060,247	$ 7,060,247

INTANGIBLE ASSETS - Goodwill (D

INTANGIBLE ASSETS - Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 7,992,700	$ 2,040,402
Goodwill acquired	23,948	5,838,959
Adjustments to purchase accounting relating to acquisitions	3,213	113,339
Transfer of Cablevision goodwill related to Altice Technical Services US Corp.	(23,101)
Goodwill, ending balance	$ 7,996,760	$ 7,992,700

DEBT - CSC Holdings Credit Faci

DEBT - CSC Holdings Credit Facilities (Details)

Mar. 15, 2017USD ($)

Apr. 26, 2016USD ($)

Apr. 17, 2013USD ($)

Oct. 12, 2012USD ($)

Apr. 30, 2017USD ($)

Oct. 31, 2016USD ($)

Jun. 30, 2017USD ($)

Jun. 20, 2016

Dec. 31, 2017USD ($)

Dec. 31, 2016USD ($)

Oct. 11, 2016USD ($)

Sep. 30, 2016USD ($)

Jun. 21, 2016USD ($)

Debt Instrument [Line Items]

Principal Amount

$ 4,693,675,000

Credit facility

4,643,523,000

$ 3,444,790,000

Line of credit facility, aggregate principal amount

$ 480,000,000

Repayments of lines of credit

$ 1,477,200,000

Redemption of debt amount

1,729,400,000

0

Loss on extinguishment of debt and write-off of deferred financing costs

$ 18,976,000

600,240,000

127,649,000

Cash distributions to shareholders

$ 839,700,000

840,035,000

445,176,000

Alternate Base Rate

Debt Instrument [Line Items]

Basis spread on variable rate

2.50%

Eurodollar

Debt Instrument [Line Items]

Basis spread on variable rate

3.50%

Senior Notes

Debt Instrument [Line Items]

Principal Amount

16,289,245,000

CSC Holdings 8.625% Notes due September 15, 2017 [Member] | Senior Notes

Debt Instrument [Line Items]

Redemption of debt amount

$ 500,000,000

5.5% Notes due April 15, 2027 | Senior Notes

Debt Instrument [Line Items]

Principal Amount

$ 1,310,000,000

$ 1,310,000,000

Stated interest rate

5.50%

5.50%

Deferred financing costs

$ 5,575,000

8.625% Notes due September 15, 2017 | Senior Notes

Debt Instrument [Line Items]

Principal Amount

$ 0

Stated interest rate

8.625%

8.625%

CSC Credit Facilities

Debt Instrument [Line Items]

Percentage of proceeds from asset sales required to pay down term loans

100.00%

Percentage of excess cash flow required when minimum leverage ratio is not met

50.00%

Percentage of excess cash flow required to pay down term loans when minimum leverage ratio is fulfilled

0.00%

Minimum debt leverage ratio required for zero percent of excess cash flow obligation to prepay debt

4.5

Line of credit facility, covenant, leverage ratio

5

Line of credit facility, covenant, minimum undrawn letters of credit

$ 15,000,000

Revolving Credit Facility | Eurodollar

Debt Instrument [Line Items]

Basis spread on variable rate

3.25%

Revolving Credit Facility | CSC Holdings Revolving Credit Facility

Debt Instrument [Line Items]

Principal Amount

450,000,000

Credit facility

425,488,000

145,013,000

Line of credit facility, aggregate principal amount

$ 2,300,000,000

Repayments of lines of credit

1,075,256,000

Proceeds from credit facility debt

$ 500,000,000

1,350,000,000

Cash distributions to shareholders

$ 500,000,000

Line of credit facility periodic payment, percentage of principal

0.25%

Line of credit facility, periodic payment amount

$ 7,500,000

Revolving Credit Facility | CSC Holdings Revolving Credit Facility | Alternate Base Rate

Debt Instrument [Line Items]

Basis spread on variable rate

2.25%

Revolving Credit Facility | CSC Holdings Revolving Credit Facility | Eurodollar

Debt Instrument [Line Items]

Basis spread on variable rate

3.25%

Term Loan

Debt Instrument [Line Items]

Deferred financing costs

$ 7,249,000

Issue Discount

$ 6,250,000

Repayments of lines of credit

$ 2,030,699,000

$ 480,000,000

Term Loan | Alternate Base Rate

Debt Instrument [Line Items]

Basis spread on variable rate

2.25%

Term Loan | CSC Holdings Term Loan Facility

Debt Instrument [Line Items]

Principal Amount

3,000,000,000

$ 2,985,000,000

Credit facility

2,967,818,000

$ 2,486,874,000

Line of credit facility, aggregate principal amount

3,000,000,000

Write-off the deferred financing costs and the unamortized discount

$ 102,894,000

Deferred financing costs

7,249,000

Issue Discount

$ 6,250,000

Line of credit facility, increase in borrowing capacity

$ 500,000,000

Repayments of lines of credit

$ 2,493,750,000

Term Loan | CSC Holdings Term Loan Facility | Alternate Base Rate

Debt Instrument [Line Items]

Basis spread on variable rate

1.25%

Term Loan | CSC Holdings Term Loan Facility | Eurodollar

Debt Instrument [Line Items]

Basis spread on variable rate

2.25%

DEBT - Cequel Credit Facilities

DEBT - Cequel Credit Facilities (Details) - USD ($)	Mar. 15, 2017	Oct. 12, 2012	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016
Line of Credit Facility [Line Items]
Line of credit facility, aggregate principal amount		$ 480,000,000
Principal Amount				$ 4,693,675,000
Credit facility				4,643,523,000	$ 3,444,790,000
Redemption of debt amount				1,729,400,000	0
Loss on extinguishment of debt and write-off of deferred financing costs	$ 18,976,000			600,240,000	127,649,000
Alternate Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate		2.50%
Eurodollar
Line of Credit Facility [Line Items]
Basis spread on variable rate		3.50%
Senior Notes
Line of Credit Facility [Line Items]
Principal Amount				16,289,245,000
Revolving Credit Facility | Eurodollar
Line of Credit Facility [Line Items]
Basis spread on variable rate			3.25%
Term Loan | Alternate Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate			2.25%
Cequel Term Loan Facility | Term Loan
Line of Credit Facility [Line Items]
Line of credit facility, aggregate principal amount	1,265,000,000			1,265,000,000
Principal Amount				1,258,675,000
Line of credit facility, increase in borrowing capacity	450,000,000
Credit facility	812,963,000			$ 1,250,217,000	812,903,000
Loss on extinguishment of debt and write-off of deferred financing costs	28,684,000
Line of credit facility periodic payment, percentage of principal				0.25%
Line of credit facility, periodic payment amount				$ 3,163,000
Cequel Term Loan Facility | Term Loan | Alternate Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate				1.25%
Cequel Term Loan Facility | Term Loan | Eurodollar
Line of Credit Facility [Line Items]
Basis spread on variable rate				2.25%
Cequel Revolving Credit Facility | Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, aggregate principal amount				$ 350,000,000
Principal Amount				0
Credit facility				$ 0	$ 0
Cequel Revolving Credit Facility | Revolving Credit Facility | Alternate Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate				2.25%
Cequel Revolving Credit Facility | Revolving Credit Facility | Eurodollar
Line of Credit Facility [Line Items]
Basis spread on variable rate				3.25%
6.375% Senior Notes due September 15, 2020 | Senior Notes
Line of Credit Facility [Line Items]
Principal Amount				$ 1,050,000,000
Redemption of debt amount	$ 450,000,000
Stated interest rate	6.375%			6.375%
Cequel Credit Facilities
Line of Credit Facility [Line Items]
Percentage of proceeds from asset sales required to pay down term loans				100.00%
Percentage of excess cash flow required when minimum leverage ratio is not met				50.00%
Percentage of excess cash flow required to pay down term loans when minimum leverage ratio is fulfilled				0.00%
Minimum debt leverage ratio required for zero percent of excess cash flow obligation to prepay debt				4.5
Leverage maintenance covenant				5

DEBT - Credit Facilities Outsta

DEBT - Credit Facilities Outstanding (Details) - USD ($)	Dec. 31, 2017	Mar. 15, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Principal Amount	$ 4,693,675,000
Credit facility, Carrying Value	4,643,523,000		$ 3,444,790,000
Less: Current portion	42,650,000		33,150,000
Credit facility, noncurrent	$ 4,600,873,000		3,411,640,000
CSC Holdings Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Stated interest rate	4.75%
Principal Amount	$ 450,000,000
Credit facility, Carrying Value	425,488,000		145,013,000
Letters of credit outstanding	115,973,000
Line of credit facility, remaining borrowing capacity	1,734,027,000
CSC Holdings Revolving Credit Facility, Portion Due October 9, 2020 | Revolving Credit Facility
Debt Instrument [Line Items]
Principal Amount	$ 20,000,000
CSC Holdings Term Loan Facility | Term Loan
Debt Instrument [Line Items]
Stated interest rate	3.74%
Principal Amount	$ 2,985,000,000	$ 3,000,000,000
Credit facility, Carrying Value	$ 2,967,818,000		2,486,874,000
Cequel Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Stated interest rate	0.00%
Principal Amount	$ 0
Credit facility, Carrying Value	0		0
Letters of credit outstanding	13,500,000
Line of credit facility, remaining borrowing capacity	$ 336,500,000
Cequel Term Loan Facility | Term Loan
Debt Instrument [Line Items]
Stated interest rate	3.82%
Principal Amount	$ 1,258,675,000
Credit facility, Carrying Value	$ 1,250,217,000	$ 812,963,000	$ 812,903,000

DEBT - Senior Guaranteed Notes

DEBT - Senior Guaranteed Notes and Senior Notes and Debentures (Details) - USD ($)	Mar. 15, 2017	Jun. 21, 2016	Sep. 30, 2017	Jul. 31, 2017	Apr. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Jun. 30, 2017	Sep. 30, 2016	Jun. 12, 2015
Debt Instrument [Line Items]
Principal Amount						$ 4,693,675,000
Carrying Amount						15,860,432,000	$ 17,507,325,000
Less: Current portion						507,744,000	926,045,000
Long-term debt						15,352,688,000	16,581,280,000
Redemption of debt amount						1,729,400,000	0
10.875% Notes due October 15, 2025
Debt Instrument [Line Items]
Interest Rate				10.875%
Senior Notes
Debt Instrument [Line Items]
Principal Amount						$ 16,289,245,000
Senior Notes | 7.875% Notes due February 15, 2018
Debt Instrument [Line Items]
Interest Rate						7.875%
Principal Amount						$ 300,000,000
Carrying Amount						$ 301,184,000	310,334,000
Senior Notes | 7.625% Notes due July 15, 2018
Debt Instrument [Line Items]
Interest Rate						7.625%
Principal Amount						$ 500,000,000
Carrying Amount						$ 507,744,000	521,654,000
Senior Notes | 8.625% Notes due February 15, 2019
Debt Instrument [Line Items]
Interest Rate						8.625%
Principal Amount						$ 526,000,000
Carrying Amount						$ 541,165,000	553,804,000
Senior Notes | 6.75% Notes due November 15, 2021
Debt Instrument [Line Items]
Interest Rate						6.75%
Principal Amount						$ 1,000,000,000
Carrying Amount						$ 960,146,000	951,702,000
Senior Notes | 5.25% Notes due June 1, 2024
Debt Instrument [Line Items]
Interest Rate						5.25%
Principal Amount						$ 750,000,000
Carrying Amount						$ 660,601,000	650,193,000
Senior Notes | 10.125% Notes due January 15, 2023
Debt Instrument [Line Items]
Interest Rate						10.125%
Principal Amount						$ 1,800,000,000
Carrying Amount						$ 1,777,914,000	1,774,750,000
Senior Notes | 10.875% Notes due October 15, 2025
Debt Instrument [Line Items]
Interest Rate						10.875%
Principal Amount						$ 1,684,221,000		$ 2,000,000,000
Carrying Amount				$ 315,779,000		$ 1,661,135,000	1,970,379,000
Loss on extinguishment of debt				34,341,000
Write-off of deferred financings costs				4,516,000
Senior Notes | 6.625% Notes due October 15, 2025
Debt Instrument [Line Items]
Interest Rate						6.625%
Principal Amount						$ 1,000,000,000
Carrying Amount						$ 986,717,000	985,469,000
Senior Notes | 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Interest Rate						5.50%			5.50%
Principal Amount						$ 1,310,000,000			$ 1,310,000,000
Carrying Amount						$ 1,304,468,000	1,304,025,000
Redeemable debt, percent						40.00%
Redemption price, percentage						105.50%
Senior Notes | 8.625% Notes due September 15, 2017
Debt Instrument [Line Items]
Interest Rate					8.625%	8.625%
Principal Amount						$ 0
Carrying Amount						$ 0	926,045,000
Extinguishment of debt			$ 400,000,000		$ 500,000,000
Senior Notes | 7.75% Notes due April 15, 2018
Debt Instrument [Line Items]
Interest Rate						7.75%
Principal Amount						$ 750,000,000
Carrying Amount						$ 754,035,000	767,545,000
Senior Notes | 8.0% Notes due April 15, 2020
Debt Instrument [Line Items]
Interest Rate						8.00%
Principal Amount						$ 500,000,000
Carrying Amount						$ 492,009,000	488,992,000
Senior Notes | 5.875% Notes due September 15, 2022
Debt Instrument [Line Items]
Interest Rate						5.875%
Principal Amount						$ 649,024,000
Carrying Amount						$ 572,071,000	559,500,000
Senior Notes | 6.375% Senior Notes due September 15, 2020
Debt Instrument [Line Items]
Interest Rate	6.375%					6.375%
Principal Amount						$ 1,050,000,000
Carrying Amount						$ 1,027,493,000	1,457,439,000
Redemption of debt amount	$ 450,000,000
Senior Notes | 5.125% Senior Notes due December 15, 2021
Debt Instrument [Line Items]
Interest Rate						5.125%
Principal Amount						$ 1,250,000,000
Carrying Amount						$ 1,138,870,000	1,115,767,000
Senior Notes | 7.75% Senior Notes due July 15, 2025
Debt Instrument [Line Items]
Interest Rate						7.75%				7.75%
Principal Amount						$ 620,000,000				$ 300,000,000
Carrying Amount						$ 604,374,000	602,925,000
Redeemable debt, percent						40.00%
Redemption price, percentage						107.75%
Senior Notes | 5.375% Senior Notes due July 15, 2023
Debt Instrument [Line Items]
Interest Rate						5.375%				5.375%
Principal Amount						$ 1,100,000,000				$ 1,100,000,000
Carrying Amount						$ 1,082,482,000	1,079,869,000
Redeemable debt, percent						40.00%
Redemption price, percentage						105.375%
Senior Notes | 5.5% Senior Notes due May 15, 2026
Debt Instrument [Line Items]
Interest Rate						5.50%
Principal Amount						$ 1,500,000,000
Carrying Amount						$ 1,488,024,000	$ 1,486,933,000
Redeemable debt, percent						40.00%
Redemption price, percentage						105.50%
Senior Notes | Senior Notes due in 2025
Debt Instrument [Line Items]
Redemption price, percentage						100.00%
Cablevision Systems Corp. | Senior Notes | 10.125% Notes due January 15, 2023
Debt Instrument [Line Items]
Redemption price, percentage						110.125%
Cablevision Systems Corp. | Senior Notes | 10.875% Notes due October 15, 2025
Debt Instrument [Line Items]
Redemption price, percentage						110.875%
Cablevision Systems Corp. | Senior Notes | 6.625% Notes due October 15, 2025
Debt Instrument [Line Items]
Redemption price, percentage						106.625%
Cablevision Systems Corp. | Senior Notes | CSC Holdings Senior Notes
Debt Instrument [Line Items]
Redeemable debt, percent						40.00%
Adjustment to fair value		$ 52,788,000
IPO
Debt Instrument [Line Items]
Consideration received on transaction, used to repay long term debt				$ 350,120,000

DEBT - Senior Notes (Details)

DEBT - Senior Notes (Details) - USD ($)	Apr. 26, 2016	Dec. 31, 2017	Jul. 31, 2017	Jun. 30, 2017	Sep. 30, 2016	Jun. 12, 2015
Debt Instrument [Line Items]
Principal Amount		$ 4,693,675,000
Repayments of lines of credit	$ 1,477,200,000
10.875% Notes due October 15, 2025
Debt Instrument [Line Items]
Stated interest rate			10.875%
Senior Notes
Debt Instrument [Line Items]
Principal Amount		16,289,245,000
Senior Notes | 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Principal Amount		$ 1,310,000,000			$ 1,310,000,000
Stated interest rate		5.50%			5.50%
Deferred financing costs					$ 5,575,000
Senior Notes | 6.625% Notes due October 15, 2025
Debt Instrument [Line Items]
Principal Amount		$ 1,000,000,000
Stated interest rate		6.625%
Issued percentage of par		100.00%
Senior Notes | 10.875% Notes due October 15, 2025
Debt Instrument [Line Items]
Principal Amount		$ 1,684,221,000		$ 2,000,000,000
Stated interest rate		10.875%
Issued percentage of par		100.00%
Senior Notes | 10.125% Notes due January 15, 2023
Debt Instrument [Line Items]
Principal Amount		$ 1,800,000,000
Stated interest rate		10.125%
Issued percentage of par		100.00%
Senior Notes | Cablevision Acquisition Notes
Debt Instrument [Line Items]
Deferred financing costs		$ 76,579,000
Senior Notes | 5.375% Senior Notes due July 15, 2023
Debt Instrument [Line Items]
Principal Amount		$ 1,100,000,000				$ 1,100,000,000
Stated interest rate		5.375%				5.375%
Issued percentage of par						100.00%
Senior Notes | 5.5% Senior Notes due May 15, 2026
Debt Instrument [Line Items]
Principal Amount	$ 1,500,000,000
Stated interest rate	5.50%
Senior Notes | Cequel Senior Secured Notes
Debt Instrument [Line Items]
Deferred financing costs		$ 13,773,000
Senior Notes | 7.75% Senior Notes due July 15, 2025
Debt Instrument [Line Items]
Principal Amount		$ 620,000,000				$ 300,000,000
Stated interest rate		7.75%				7.75%
Issued percentage of par						100.00%
Senior Notes | Holdco Senior Notes 7.75% due 2025
Debt Instrument [Line Items]
Principal Amount						$ 320,000,000
Stated interest rate						7.75%
Issued percentage of par						98.275%

DEBT - Notes Payable to Affilia

DEBT - Notes Payable to Affiliates and Related Perties (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Jul. 31, 2017	Jun. 21, 2016
Debt Instrument [Line Items]
Principal Amount	$ 4,693,675,000
Affiliates
Debt Instrument [Line Items]
Interest payable		$ 102,557,000
Affiliates | Notes payable
Debt Instrument [Line Items]
Principal Amount				$ 1,750,000,000
Cablevision Systems Corp. | Affiliates | Notes payable
Debt Instrument [Line Items]
Principal Amount				1,750,000,000
Interest payable				529,000
Debt premium				513,723,000
Interest expense	90,405,000	$ 102,557,000
10.875% Notes due October 15, 2025
Debt Instrument [Line Items]
Stated interest rate			10.875%
Notes Payable at 10.75% | Cablevision Systems Corp. | Affiliates | Notes payable
Debt Instrument [Line Items]
Principal Amount				$ 875,000,000
Stated interest rate				10.75%
Notes Payable at 11% | Cablevision Systems Corp. | Affiliates | Notes payable
Debt Instrument [Line Items]
Principal Amount				$ 875,000,000
Stated interest rate				11.00%
Organizational Transactions Prior to IPO
Debt Instrument [Line Items]
Credit to APIC upon conversion of debt	$ 2,264,252,000

DEBT - Summary of Debt Maturiti

DEBT - Summary of Debt Maturities (Details) $ in Thousands	Dec. 31, 2017USD ($)
Debt Instrument [Line Items]
2,018	$ 1,635,612
2,019	583,914
2,020	1,615,615
2,021	4,183,992
2,022	693,434
Thereafter	13,796,783
Cablevision Systems Corp.
Debt Instrument [Line Items]
2,018	1,619,094
2,019	565,604
2,020	552,902
2,021	2,921,269
2,022	680,700
Thereafter	9,380,513
Cequel Corp.
Debt Instrument [Line Items]
2,018	16,518
2,019	18,310
2,020	1,062,713
2,021	1,262,723
2,022	12,734
Thereafter	$ 4,416,270

DERIVATIVE CONTRACTS AND COL117

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Narrative (Details)	1 Months Ended	12 Months Ended
	Apr. 30, 2017USD ($)$ / sharesshares	Dec. 31, 2017USD ($)shares	Dec. 31, 2016USD ($)	Jun. 30, 2016USD ($)instrument
Derivative [Line Items]
Gain on investments, net		$ 237,354,000	$ 141,896,000
Shares related to monetization contracts (in shares) | shares		26,815,368
Notes payable | Notes related to derivative contracts
Derivative [Line Items]
Long-term debt	$ 111,657,000
Discount on notes	$ 58,341,000
Put-Call Options
Derivative [Line Items]
Loss on settlement of derivative		$ 97,410,000
Interest Rate Swap
Derivative [Line Items]
Amount of gain (loss) recognized		5,482,000	(72,961,000)
Interest Rate Swap | Not Designated as Hedging Instruments
Derivative [Line Items]
Number of derivative instruments held | instrument				2
Interest Rate Swap, Conversion, Tranche One | Not Designated as Hedging Instruments
Derivative [Line Items]
Derivative notional amount				$ 750,000,000
Derivative, fixed interest rate				1.6655%
Interest Rate Swap, Conversion, Tranche Two | Not Designated as Hedging Instruments
Derivative [Line Items]
Derivative notional amount				$ 750,000,000
Derivative, fixed interest rate				1.68%
Prepaid forward contracts
Derivative [Line Items]
Amount of gain (loss) recognized		$ (138,920,000)	$ (53,696,000)
Monetization contract
Derivative [Line Items]
Shares related to monetization contracts (in shares) | shares	32,153,118
Maximum hedge price at which downside protection is provided (in dollars per share) | $ / shares	$ 35.47
Maximum hedge price at which upside benefit is provided (in dollars per share) | $ / shares	$ 44.72
Fair value of derivative contracts, net	$ 53,316,000

DERIVATIVE CONTRACTS AND COL118

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Location of Assets and Liabilities Within the Consolidated Balance Sheets (Details) - Not Designated as Hedging Instruments - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Derivative Instruments, Fair Value [Abstract]
Asset Derivatives	$ 52,545	$ 10,956
Liability Derivatives	(239,951)	(91,981)
Prepaid forward contracts | Current derivative contracts
Derivative Instruments, Fair Value [Abstract]
Asset Derivatives	52,545	352
Liability Derivatives	(52,545)	(13,158)
Prepaid forward contracts | Long-term derivative contracts
Derivative Instruments, Fair Value [Abstract]
Asset Derivatives	0	10,604
Liability Derivatives	(109,504)	0
Interest Rate Swap | Long-term liabilities under derivative contracts
Derivative Instruments, Fair Value [Abstract]
Asset Derivatives	0	0
Liability Derivatives	$ (77,902)	$ (78,823)

DERIVATIVE CONTRACTS AND COL119

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Settlements of Collateralized Indebtedness (Details) $ in Thousands	1 Months Ended	12 Months Ended
	Feb. 28, 2017	Dec. 31, 2017USD ($)shares	Dec. 31, 2016USD ($)
Derivative [Line Items]
Number of shares (in shares) | shares		26,815,368
Collateralized indebtedness settled		$ (774,703)
Derivatives contracts settled		(56,356)
Derivatives contracts settled		(831,059)	$ (143,102)
Proceeds from new monetization contracts		838,794	$ 179,388
Net cash proceeds		$ 7,735
Comcast
Derivative [Line Items]
Stock spit, conversion ratio	2

FAIR VALUE MEASUREMENT - Assets

FAIR VALUE MEASUREMENT - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Fair Value Measured on a Recurring Basis | Level III
Liabilities:
Contingent consideration related to 2017 acquisitions	$ 32,233	$ 0
Prepaid forward contracts | Fair Value Measured on a Recurring Basis | Level II
Assets:
Derivative asset	52,545	10,956
Liabilities:
Derivative liability	162,049	13,158
Interest rate swap contracts | Fair Value Measured on a Recurring Basis | Level II
Liabilities:
Derivative liability	77,902	78,823
Investment securities pledged as collateral | Fair Value Measured on a Recurring Basis | Level I
Assets:
Investment securities	1,720,357	1,483,030
Money market funds (of which $14,700 is classified as restricted cash as of December 31, 2016)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted cash		14,700
Money market funds (of which $14,700 is classified as restricted cash as of December 31, 2016) | Fair Value Measured on a Recurring Basis | Level I
Assets:
Cash and cash equivalents	$ 5,949	$ 100,139

FAIR VALUE MEASUREMENT - Narrat

FAIR VALUE MEASUREMENT - Narrative (Details)	3 Months Ended
	Dec. 31, 2017USD ($)
First Quarter Acquisitions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration related to 2017 acquisitions	$ 30,000,000
Fourth Quarter Acquisition
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration related to 2017 acquisitions	$ 2,233
Percent of contractual amount of acquisitions recognized	51.00%

FAIR VALUE MEASUREMENT - Fair V

FAIR VALUE MEASUREMENT - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	$ 21,919,331	$ 24,001,910
Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	23,279,471	25,896,046
Altice N.V. | Notes payable to affiliates and related parties | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	0	1,750,000
Altice N.V. | Notes payable to affiliates and related parties | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	0	1,837,876
CSC Holdings | Credit facility debt | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	3,393,306	2,631,887
CSC Holdings | Credit facility debt | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	3,435,000	2,675,256
CSC Holdings | Collateralized indebtedness | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	1,349,474	1,286,069
CSC Holdings | Collateralized indebtedness | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	1,305,932	1,280,048
CSC Holdings | Senior guaranteed notes | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	2,291,185	2,289,494
CSC Holdings | Senior guaranteed notes | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	2,420,000	2,416,375
CSC Holdings | Senior notes and debentures | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	6,409,889	6,732,816
CSC Holdings | Senior notes and debentures | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	7,221,846	7,731,150
CSC Holdings | Notes payable | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	56,956	13,726
CSC Holdings | Notes payable | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	55,289	13,260
Cablevision Systems Corp. | Senior notes and debentures | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	1,818,115	2,742,082
Cablevision Systems Corp. | Senior notes and debentures | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	1,931,239	2,920,056
Cequel Corp. | Credit facility debt | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	1,250,217	812,903
Cequel Corp. | Credit facility debt | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	1,258,675	815,000
Cequel Corp. | Senior notes and debentures | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	2,770,737	3,176,131
Cequel Corp. | Senior notes and debentures | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	2,983,615	3,517,275
Cequel Corp. | Notes payable | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	8,946	0
Cequel Corp. | Notes payable | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	8,945	0
Cequel Corp. | Senior secured notes | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	2,570,506	2,566,802
Cequel Corp. | Senior secured notes | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	$ 2,658,930	$ 2,689,750

INCOME TAXES - Income Tax Expen

INCOME TAXES - Income Tax Expense (Benefit) Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Current expense (benefit):
Federal	$ 5,657	$ (981)
State	12,509	5,310
Total current expense (benefit)	18,166	4,329
Deferred benefit:
Federal	(2,088,652)	(223,159)
State	(782,492)	(40,830)
Total deferred benefit	(2,871,144)	(263,989)
Tax benefit relating to uncertain tax positions	11	(6)
Income tax benefit	$ (2,852,967)	$ (259,666)

INCOME TAXES - Narrative (Detai

INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Deferred income taxes		$ (2,871,144)	$ (263,989)
Net operating loss carryforward		2,670,000
Unrecognized tax benefits that would impact effective tax rate		5,585
Tax expense related to uncertain tax positions		659
Cablevision Systems Corp.
Business Acquisition [Line Items]
Deferred income taxes	$ 153,660
Federal Tax Reform
Business Acquisition [Line Items]
Impact from changes in tax rates, benefit		2,337,900	$ 0
Alternative Minimum Tax Credit Carryforward
Business Acquisition [Line Items]
Tax credit carryforward		48,995
Research Tax Credit Carryforward
Business Acquisition [Line Items]
Tax credit carryforward		17,806
Accounting Standards Update 2016-09
Business Acquisition [Line Items]
Unrealized excess tax benefits recognized with the adoption of ASU 2016-09		$ 310,771

INCOME TAXES - Effective Tax Ra

INCOME TAXES - Effective Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Tax Examination [Line Items]
Federal tax benefit at statutory rate	$ (465,972)	$ (381,901)
State income taxes, net of federal impact	(59,719)	(39,336)
Changes in the valuation allowance	(111)	297
Tax benefit relating to uncertain tax positions	(253)	(120)
Non-deductible share-based compensation related to the carried unit plan	20,101	5,029
Non-deductible Cablevision Acquisition transaction costs	0	4,457
Other non-deductible expenses	3,349	1,551
Other, net	434	(2,882)
Income tax benefit	(2,852,967)	(259,666)
Federal Tax Reform
Income Tax Examination [Line Items]
Impact from changes in tax rates	(2,337,900)	0
State and Local Jurisdiction
Income Tax Examination [Line Items]
Impact from changes in tax rates	$ (12,896)	$ 153,239

INCOME TAXES - Deferred Tax Ass

INCOME TAXES - Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred Tax Assets, Net [Abstract]
NOLs and tax credit carry forwards	$ 784,334	$ 971,728
Compensation and benefit plans	48,280	93,939
Partnership investments	68,054	113,473
Restructuring liability	33,247	37,393
Other liabilities	38,140	45,561
Liabilities under derivative contracts	21,034	31,529
Interest deferred for tax purposes	128,516	39,633
Other	7,182	6,615
Deferred tax asset	1,128,787	1,339,871
Valuation allowance	(3,000)	(3,125)
Net deferred tax asset, noncurrent	1,125,787	1,336,746
Deferred Tax Liabilities, Net [Abstract]
Fixed assets and intangibles	(5,733,319)	(9,065,635)
Investments	(113,628)	(187,795)
Prepaid expenses	(8,007)	(10,172)
Fair value adjustments related to debt and deferred financing costs	(40,215)	(30,535)
Other	(5,733)	(9,424)
Deferred tax liability, noncurrent	(5,900,902)	(9,303,561)
Total net deferred tax liability	$ (4,775,115)	$ (7,966,815)

INCOME TAXES - Unrecognized Tax

INCOME TAXES - Unrecognized Tax Benefits (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	$ 4,025
Increases related to prior year tax positions	11
Ending balance	$ 4,036

SHARE BASED COMPENSATION - Narr

SHARE BASED COMPENSATION - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	Dec. 30, 2017	Jun. 21, 2016	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee and non-employee share-based compensation expense				$ 57,430	$ 14,368
Employee share-based compensation expense				55,258	9,849
Non-employee share-based compensation expense				$ 2,172	$ 4,519
Carry Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards authorized (in shares)				259,442,785	259,442,785
Repurchase period following termination				60 days
Repurchase period following fourth anniversary				60 days
Carry unit plan, written promissory note period				3 years
Weighted average fair value (in dollars per unit)				$ 2.50	$ 1.76
Carry Unit Awards | Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		50.00%
Carry Unit Awards | Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		25.00%		25.00%
Carry Unit Awards | Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		25.00%		25.00%
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee share-based compensation expense			$ 3,848			$ 9,159
Employee | Carry Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)				211,670,834
Affiliates | Carry Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)				11,300,000
2017 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards authorized (in shares)				9,879,291
Options granted (in shares)	5,110,747
Exercise price (in dollars per share)	$ 19.48
2017 LTIP | December 30, 2017 - Grant One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options nonvested (in shares)				2,730,949
2017 LTIP | December 30, 2017 - Grant Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options nonvested (in shares)				2,379,798
2017 LTIP | Stock Options | December 30, 2017 - Grant One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage				100.00%
2017 LTIP | Stock Options | Tranche One | December 30, 2017 - Grant Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage				50.00%
2017 LTIP | Stock Options | Tranche Two | December 30, 2017 - Grant Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage				25.00%
2017 LTIP | Stock Options | Tranche Three | December 30, 2017 - Grant Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage				25.00%

SHARE BASED COMPENSATION -Carry

SHARE BASED COMPENSATION -Carrying Unit Award Activity (Details)	12 Months Ended
	Dec. 31, 2017$ / sharesshares
Time Vesting Awards
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	192,800,000
Granted (in shares)	28,025,000
Forfeited (in shares)	(7,854,166)
Vested (in shares)	(44,420,833)
Ending balance (in shares)	168,550,001
Performance Based Vesting Awards
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	10,000,000
Granted (in shares)	0
Forfeited (in shares)	0
Vested (in shares)	0
Ending balance (in shares)	10,000,000
Carry Unit Awards
Weighted Average Grant Date Fair Value
Balance at beginning of period, weighted average grant date fair value (in dollars per share) | $ / shares	$ 0.37
Granted weighted average grant date fair value (in dollars per share) | $ / shares	3.14
Forfeited weighted average grant date fair value (in dollars per share) | $ / shares	0.37
Vested weighted average grant date fair value (in dollars per share) | $ / shares	0.41
Balance at end of period, weighted average grant date fair value (in dollars per share) | $ / shares	$ 0.71

SHARE BASED COMPENSATION - Fair

SHARE BASED COMPENSATION - Fair Value Assumptions For Stock Options (Details)	Dec. 30, 2017$ / shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Risk-free interest rate	2.30%
Expected life (in years)	6 years 5 months 9 days
Dividend yield	0.00%
Volatility	33.95%
Grant date fair value	$ 8.77

AFFILIATE AND RELATED PARTY 131

AFFILIATE AND RELATED PARTY TRANSACTIONS - Narrative (Details) - USD ($) $ in Thousands	Jan. 08, 2018	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Feb. 28, 2018	Jul. 06, 2016
Related Party Transaction [Line Items]
Investment in affiliates and related parties				$ 930	$ 5,606
Equity in net income (loss) from investment in related party				(10,040)	(1,132)
Prepayment to affiliate included in prepaid expenses and other current assets				135,313	88,151
Transfer of goodwill				(23,101)
Related party expense				712,183	132,427
Cash distributions to shareholders		$ 839,700		840,035	445,176
Cash distributions			$ 79,617	919,317	365,559
Affiliates
Related Party Transaction [Line Items]
Prepayment to affiliate included in prepaid expenses and other current assets				19,563
Prepayment to affiliate in other assets				6,539
Related party note					1,750,000
Due to related parties and affiliates					102,557
Other Operating Expenses | Affiliates
Related Party Transaction [Line Items]
Related party expense				72,944
Fees for Executive Services | Affiliates
Related Party Transaction [Line Items]
Related party expense				30,000	20,556
Related party transaction, annual fee				30,000
Installation and Construction | Affiliates
Related Party Transaction [Line Items]
Capital expenditures				111,906
Fiber To The Home Network
Related Party Transaction [Line Items]
Payments of advances for capital expenditure				16,363
Equipment Purchase Costs | Affiliates
Related Party Transaction [Line Items]
Capital expenditures					1,025
Equipment Purchase Costs | Altice Labs S.A.
Related Party Transaction [Line Items]
Capital expenditures				17,434
Equipment Purchase Costs | Altice Management International
Related Party Transaction [Line Items]
Capital expenditures					44,121
Software Development Service Costs | Altice Labs S.A.
Related Party Transaction [Line Items]
Capital expenditures					740
Software Development Service Costs | Altice Management International
Related Party Transaction [Line Items]
Capital expenditures				$ 4,578
Newsday
Related Party Transaction [Line Items]
Ownership percentage of noncontrolling interest							75.00%
Ownership percentage				25.00%
Equity in net income (loss) from investment in related party				$ 7,219	1,132
I24News and Altice NV 24/7
Related Party Transaction [Line Items]
Ownership percentage				25.00%
Equity in net income (loss) from investment in related party				$ 2,821	0
Newsday And i24News
Related Party Transaction [Line Items]
Investment in affiliates and related parties				(2,649)	5,606
CSC Holdings Revolving Credit Facility | Revolving Credit Facility
Related Party Transaction [Line Items]
Cash distributions to shareholders				500,000
Proceeds from credit facility debt		$ 500,000		1,350,000
Other Operating Expense | Transition Services | Affiliates
Related Party Transaction [Line Items]
Other operating expenses, charges for related party services				4,057	887
Transition services credit				$ 917	$ 2,589
Subsequent Event
Related Party Transaction [Line Items]
Cash distributions to shareholders	$ 1,500,000
Altice Technical Services | Subsequent Event
Related Party Transaction [Line Items]
Percentage of shares acquired						100.00%

AFFILIATE AND RELATED PARTY 132

AFFILIATE AND RELATED PARTY TRANSACTIONS - Revenue and Related Charges (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Revenue	$ 2,205	$ 1,086
Operating expenses:
Programming and other direct costs	(4,176)	(1,947)
Other operating expenses, net	(106,084)	(18,854)
Operating expenses, net	(110,260)	(20,801)
Interest expense	(90,405)	(112,712)
Loss on extinguishment of debt and write-off of deferred financing costs	(513,723)	0
Net charges	(712,183)	(132,427)
Capital Expenditures	$ 133,918	45,886
Holdco Notes and Notes Payable to Affiliates
Operating expenses:
Interest expense		$ (10,155)

AFFILIATE AND RELATED PARTY 133

AFFILIATE AND RELATED PARTY TRANSACTIONS - Amounts Due From and Due to Related Parties (Details) - Affiliates - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Due from related parties and affiliates	$ 21,356	$ 22,182
Due to related parties and affiliates	13,946	127,363
Altice US Finance S.A.
Related Party Transaction [Line Items]
Due from related parties and affiliates	12,951	12,951
Newsday
Related Party Transaction [Line Items]
Due from related parties and affiliates	2,713	6,114
Due to related parties and affiliates	33	275
Altice Labs S.A.
Related Party Transaction [Line Items]
Due to related parties and affiliates	7,354	866
Altice Management Americas
Related Party Transaction [Line Items]
Due from related parties and affiliates	33	3,117
I24
Related Party Transaction [Line Items]
Due from related parties and affiliates	4,036	0
Other Related Party
Related Party Transaction [Line Items]
Due from related parties and affiliates	1,623	0
Due to related parties and affiliates	3,611	2,484
CVC 3BV
Related Party Transaction [Line Items]
Due to related parties and affiliates	0	71,655
Neptune Holdings US LP
Related Party Transaction [Line Items]
Due to related parties and affiliates	0	7,962
Altice Management International
Related Party Transaction [Line Items]
Due to related parties and affiliates	0	44,121
Altice Technical Services
Related Party Transaction [Line Items]
Due to related parties and affiliates	$ 2,948	$ 0

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Estimated litigation liability		$ 5,200
Increase in estimated litigation liability	$ 800

COMMITMENTS AND CONTINGENCIE135

COMMITMENTS AND CONTINGENCIES - Future Cash Payments and Commitments (Details) $ in Thousands	Dec. 31, 2017USD ($)
Commitments and Contingencies Disclosure [Abstract]
Purchase obligation	$ 8,423,735
Purchase obligation, due in year 1	3,071,514
Purchase obligation, due in years 2 and 3	4,179,616
Purchase obligation, due in years 4 and 5	1,092,786
Purchase obligation, due after year 5	79,819
Guarantees	36,224
Guarantees, due in year 1	34,716
Guarantees, due in years 2 and 3	1,508
Guarantees, due in years 4 and 5	0
Guarantees, due after year 5	0
Letters of credit	129,473
Letters of credit, due in year 1	200
Letters of credit, due in years 2 and 3	120
Letters of credit, due in years 4 and 5	129,153
Letters of credit, due after year 5	0
Total contractual obligation	8,589,432
Total contractual obligation, due in year 1	3,106,430
Total contractual obligation, due in years 2 and 3	4,181,244
Total contractual obligation, due in years 4 and 5	1,221,939
Total contractual obligation, due after year 5	$ 79,819

SEGMENT INFORMATION - Narrative

SEGMENT INFORMATION - Narrative (Details)	12 Months Ended
	Dec. 31, 2017segment
Segment Reporting [Abstract]
Number of reportable business segments	2

SEGMENT INFORMATION - Reconcili

SEGMENT INFORMATION - Reconciliation of Adjusted EBITDA to Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Operating Income (Loss) from Continuing Operations Before Income Taxes [Abstract]
Operating income	$ 225,504	$ 134,864	$ 256,782	$ 248,234	$ 217,224	$ 142,779	$ 45,403	$ 54,260	$ 865,384	$ 459,666
Share-based compensation expense									57,430	14,368
Restructuring and other expense									152,401	240,395
Depreciation and amortization (including impairments)									2,930,475	1,700,306
Adjusted EBITDA									4,005,690	2,414,735
Cablevision Systems Corp.
Operating Income (Loss) from Continuing Operations Before Income Taxes [Abstract]
Operating income									345,063	74,865
Share-based compensation expense									42,060	9,164
Restructuring and other expense									112,384	212,150
Depreciation and amortization (including impairments)									2,251,614	963,665
Adjusted EBITDA									2,751,121	1,259,844
Cequel Corp.
Operating Income (Loss) from Continuing Operations Before Income Taxes [Abstract]
Operating income									520,321	384,801
Share-based compensation expense									15,370	5,204
Restructuring and other expense									40,017	28,245
Depreciation and amortization (including impairments)									678,861	736,641
Adjusted EBITDA									$ 1,254,569	$ 1,154,891

SEGMENT INFORMATION - Reconc138

SEGMENT INFORMATION - Reconciliation of Reportable Segments to Consolidated Balances (Details) - USD ($) $ in Thousands	Mar. 15, 2017	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Operating Income (Loss) from Continuing Operations Before Income Taxes [Abstract]
Operating income for reportable segments		$ 225,504	$ 134,864	$ 256,782	$ 248,234	$ 217,224	$ 142,779	$ 45,403	$ 54,260	$ 865,384	$ 459,666
Items excluded from operating income:
Interest expense										(1,603,132)	(1,456,541)
Interest income										1,921	13,811
Gain on investments, net										237,354	141,896
Loss on derivative contracts, net										(236,330)	(53,696)
Gain (loss) on interest rate swap contracts										5,482	(72,961)
Loss on extinguishment of debt and write-off of deferred financing costs	$ (18,976)									(600,240)	(127,649)
Other income (expense), net										(1,788)	4,329
Loss before income taxes										$ (1,331,349)	$ (1,091,145)

SEGMENT INFORMATION - Summary o

SEGMENT INFORMATION - Summary of Revenue by Segment (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Revenue from External Customer [Line Items]
Revenues, net	$ 2,365,378	$ 2,327,175	$ 2,328,341	$ 2,305,676	$ 2,305,901	$ 2,260,221	$ 823,501	$ 627,589	$ 9,326,570	$ 6,017,212
Pay TV
Revenue from External Customer [Line Items]
Revenues, net									4,214,745	2,759,216
Broadband
Revenue from External Customer [Line Items]
Revenues, net									2,563,772	1,617,029
Telephony
Revenue from External Customer [Line Items]
Revenues, net									823,981	529,973
Business services and wholesale
Revenue from External Customer [Line Items]
Revenues, net									1,298,817	819,541
Advertising
Revenue from External Customer [Line Items]
Revenues, net									391,866	252,049
Other
Revenue from External Customer [Line Items]
Revenues, net									33,389	39,404
Operating Segments | Cablevision Systems Corp.
Revenue from External Customer [Line Items]
Revenues, net									6,664,788	3,444,052
Operating Segments | Cablevision Systems Corp. | Pay TV
Revenue from External Customer [Line Items]
Revenues, net									3,113,238	1,638,691
Operating Segments | Cablevision Systems Corp. | Broadband
Revenue from External Customer [Line Items]
Revenues, net									1,603,015	782,615
Operating Segments | Cablevision Systems Corp. | Telephony
Revenue from External Customer [Line Items]
Revenues, net									693,478	376,034
Operating Segments | Cablevision Systems Corp. | Business services and wholesale
Revenue from External Customer [Line Items]
Revenues, net									923,161	468,632
Operating Segments | Cablevision Systems Corp. | Advertising
Revenue from External Customer [Line Items]
Revenues, net									321,149	163,678
Operating Segments | Cablevision Systems Corp. | Other
Revenue from External Customer [Line Items]
Revenues, net									10,747	14,402
Operating Segments | Cequel Corp.
Revenue from External Customer [Line Items]
Revenues, net									2,664,574	2,573,160
Operating Segments | Cequel Corp. | Pay TV
Revenue from External Customer [Line Items]
Revenues, net									1,101,507	1,120,525
Operating Segments | Cequel Corp. | Broadband
Revenue from External Customer [Line Items]
Revenues, net									960,757	834,414
Operating Segments | Cequel Corp. | Telephony
Revenue from External Customer [Line Items]
Revenues, net									130,503	153,939
Operating Segments | Cequel Corp. | Business services and wholesale
Revenue from External Customer [Line Items]
Revenues, net									375,656	350,909
Operating Segments | Cequel Corp. | Advertising
Revenue from External Customer [Line Items]
Revenues, net									73,509	88,371
Operating Segments | Cequel Corp. | Other
Revenue from External Customer [Line Items]
Revenues, net									22,642	$ 25,002
Eliminations
Revenue from External Customer [Line Items]
Revenues, net									(2,792)
Eliminations | Pay TV
Revenue from External Customer [Line Items]
Revenues, net									0
Eliminations | Broadband
Revenue from External Customer [Line Items]
Revenues, net									0
Eliminations | Telephony
Revenue from External Customer [Line Items]
Revenues, net									0
Eliminations | Business services and wholesale
Revenue from External Customer [Line Items]
Revenues, net									0
Eliminations | Advertising
Revenue from External Customer [Line Items]
Revenues, net									(2,792)
Eliminations | Other
Revenue from External Customer [Line Items]
Revenues, net									$ 0

SEGMENT INFORMATION - Capital E

SEGMENT INFORMATION - Capital Expenditures by Reportable Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information, Capital Expenditures [Abstract]
Capital expenditures	$ 991,364	$ 625,541
Cablevision Systems Corp.
Segment Reporting Information, Capital Expenditures [Abstract]
Capital expenditures	711,432	298,357
Cequel Corp.
Segment Reporting Information, Capital Expenditures [Abstract]
Capital expenditures	$ 279,932	$ 327,184

BENEFIT PLANS - Funded Status (

BENEFIT PLANS - Funded Status (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Change in projected benefit obligation:
Benefit obligation, beginning of year		$ 382,517	$ 403,963
Interest cost	$ 6,946	11,786	14,077
Actuarial loss (gain)		13,171	(11,429)
Curtailments		6,332	3,968
Settlements		6,910	0
Benefits paid		(121,650)	(28,062)
Benefit obligation, end of year	382,517	299,066	382,517
Change in plan assets:
Fair value of plan assets, beginning of year		284,118	297,846
Actual return on plan assets, net		6,356	5,829
Employer contributions		26,944	8,505
Benefits paid		(121,650)	(28,062)
Fair value of plan assets, end of year	284,118	195,768	284,118
Unfunded status at end of year	$ (98,399)	$ (103,298)	$ (98,399)

BENEFIT PLANS - Net Funded Stat

BENEFIT PLANS - Net Funded Status (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Retirement Benefits [Abstract]
Defined Benefit Plans	$ (103,298)	$ (98,399)
Less: Current portion related to nonqualified plans	135	14,293
Long-term defined benefit plan obligations	$ (103,163)	$ (84,106)

BENEFIT PLANS - Narrative (Deta

BENEFIT PLANS - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Retirement Benefits [Abstract]
Accumulated benefit obligation	$ 299,066	$ 382,517
Expected future employer contributions, next fiscal year	18,000
Defined contribution plan cost	$ 27,577	$ 28,501

BENEFIT PLANS - Components of N

BENEFIT PLANS - Components of Net Periodic Benefit Costs (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Retirement Benefits [Abstract]
Interest cost	$ 6,946	$ 11,786	$ 14,077
Expected return on plan assets, net	(4,022)	(4,907)
Curtailment loss	231	3,137
Settlement loss (income) (reclassified from accumulated other comprehensive loss)	(154)	1,845
Net periodic benefit cost	$ 3,001	$ 11,861

BENEFIT PLANS - Weighted Averag

BENEFIT PLANS - Weighted Average Assumptions Used to Determine Benefit Obligation and Cost (Details)	6 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2017
Net Periodic Benefit Cost
Discount rate	3.53%	3.69%
Rate of increase in future compensation levels	0.00%	0.00%
Expected rate of return on plan assets (Pension Plan only)	3.97%	3.90%
Benefit Obligations
Discount rate	3.81%	3.50%
Rate of increase in future compensation levels	0.00%	0.00%

BENEFIT PLANS - Weighted Ave146

BENEFIT PLANS - Weighted Average Asset Allocations (Details)	Dec. 31, 2017	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Asset allocation	100.00%	100.00%
Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Asset allocation	32.00%	43.00%
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Asset allocation	66.00%	55.00%
Cash equivalents and other
Defined Benefit Plan Disclosure [Line Items]
Asset allocation	2.00%	2.00%

BENEFIT PLANS - Fair Value of P

BENEFIT PLANS - Fair Value of Plan Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 195,768	$ 284,118	$ 297,846
Plan Assets, Excluding Cash And Net Payables [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	200,243	285,074
Plan Assets, Excluding Cash And Net Payables [Member] | Level I
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	68,524	123,949
Plan Assets, Excluding Cash And Net Payables [Member] | Level II
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	131,719	161,125
Plan Assets, Excluding Cash And Net Payables [Member] | Level III
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	61,833	121,356
Mutual funds | Level I
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	61,833	121,356
Mutual funds | Level II
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Mutual funds | Level III
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Foreign issued corporate debt
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10,721	13,583
Foreign issued corporate debt | Level I
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Foreign issued corporate debt | Level II
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10,721	13,583
Foreign issued corporate debt | Level III
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. corporate debt
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	39,992	48,046
U.S. corporate debt | Level I
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. corporate debt | Level II
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	39,992	48,046
U.S. corporate debt | Level III
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Government debt
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,645	4,810
Government debt | Level I
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Government debt | Level II
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,645	4,810
Government debt | Level III
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. Treasury securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	62,601	77,285
U.S. Treasury securities | Level I
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. Treasury securities | Level II
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	62,601	77,285
U.S. Treasury securities | Level III
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Asset-backed securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10,978	14,065
Asset-backed securities | Level I
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Asset-backed securities | Level II
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10,978	14,065
Asset-backed securities | Level III
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	247
Other | Level I
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Other | Level II
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	247
Other | Level III
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9,473	5,682
Cash equivalents | Level I
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6,691	2,593
Cash equivalents | Level II
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,782	3,089
Cash equivalents | Level III
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0

BENEFIT PLANS - Expected Benefi

BENEFIT PLANS - Expected Benefit Payments (Details) $ in Thousands	Dec. 31, 2017USD ($)
Retirement Benefits [Abstract]
2,018	$ 96,482
2,019	18,960
2,020	14,052
2,021	13,282
2,022	13,792
2023-2027	$ 69,369

ALLOWANCE FOR DOUBTFUL ACCOU149

ALLOWANCE FOR DOUBTFUL ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning balance	$ 11,677	$ 1,051
Provision for doubtful accounts	74,183	53,249
Deductions/ Write-Offs and Other Charges	(72,440)	(42,623)
Ending balance	$ 13,420	$ 11,677

INTERIM FINANCIAL INFORMATIO150

INTERIM FINANCIAL INFORMATION (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Revenues, net	$ 2,365,378	$ 2,327,175	$ 2,328,341	$ 2,305,676	$ 2,305,901	$ 2,260,221	$ 823,501	$ 627,589	$ 9,326,570	$ 6,017,212
Operating expenses	(2,139,874)	(2,192,311)	(2,071,559)	(2,057,442)	(2,088,677)	(2,117,442)	(778,098)	(573,329)	(8,461,186)	(5,557,546)
Operating income	225,504	134,864	256,782	248,234	217,224	142,779	45,403	54,260	865,384	459,666
Net income (loss)	2,254,682	(182,086)	(474,790)	(76,188)	(236,049)	(172,553)	(282,129)	(140,748)	1,521,618	(831,479)
Net income attributable to noncontrolling interests	(850)	(135)	(365)	(237)	(659)	(256)	364	0	(1,587)	(551)
Net income (loss) attributable to Altice USA, Inc. stockholders	$ 2,253,832	$ (182,221)	$ (475,155)	$ (76,425)	$ (236,708)	$ (172,809)	$ (281,765)	$ (140,748)	$ 1,520,031	$ (832,030)
Basic and diluted income (loss) per share attributable to Altice USA Inc.'s stockholders (in dollars per share)	$ 3.06	$ (0.25)	$ (0.72)	$ (0.12)	$ (0.36)	$ (0.27)	$ (0.43)	$ (0.22)	$ 2.18	$ (1.28)
Quarterly Financial Information [Line Items]
Payments of dividends				$ 79,617					$ 919,317	$ 365,559
Domestic Tax Authority [Member]
Quarterly Financial Information [Line Items]
Impact from changes in tax rates									$ (2,337,900)	$ 0

SUBSEQUENT EVENT (Details)

SUBSEQUENT EVENT (Details) - USD ($)	Oct. 12, 2012	Feb. 28, 2018	Jan. 31, 2018	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016
Subsequent Event [Line Items]
Proceeds from credit facility					$ 5,593,675,000	$ 5,510,256,000
Principal Amount					4,693,675,000
Distributions declared but not paid					0	$ 79,617,000
Subsequent Event
Subsequent Event [Line Items]
Distributions declared but not paid			$ 1,500,000,000
Revolving Credit Facility | CSC Holdings Revolving Credit Facility
Subsequent Event [Line Items]
Principal Amount					$ 450,000,000
Revolving Credit Facility | CSC Holdings Revolving Credit Facility | Subsequent Event
Subsequent Event [Line Items]
Proceeds from credit facility			150,000,000
Term Loan | CSC Holdings Incremental Term Loan | Subsequent Event
Subsequent Event [Line Items]
Principal Amount			$ 1,500,000,000
Issued percentage of par			99.50%
Alternate Base Rate
Subsequent Event [Line Items]
Basis spread on variable rate	2.50%
Alternate Base Rate | Revolving Credit Facility | CSC Holdings Revolving Credit Facility
Subsequent Event [Line Items]
Basis spread on variable rate					2.25%
Alternate Base Rate | Term Loan
Subsequent Event [Line Items]
Basis spread on variable rate				2.25%
Alternate Base Rate | Term Loan | CSC Holdings Incremental Term Loan | Subsequent Event
Subsequent Event [Line Items]
Basis spread on variable rate			1.50%
Eurodollar
Subsequent Event [Line Items]
Basis spread on variable rate	3.50%
Eurodollar | Revolving Credit Facility
Subsequent Event [Line Items]
Basis spread on variable rate				3.25%
Eurodollar | Revolving Credit Facility | CSC Holdings Revolving Credit Facility
Subsequent Event [Line Items]
Basis spread on variable rate					3.25%
Eurodollar | Term Loan | CSC Holdings Incremental Term Loan | Subsequent Event
Subsequent Event [Line Items]
Basis spread on variable rate			2.50%
Senior Guaranteed Notes | 5.375% Senior Guaranteed Notes Due February 1, 2028 | Subsequent Event
Subsequent Event [Line Items]
Principal Amount			$ 1,000,000,000
Stated interest rate			5.375%
Senior Notes
Subsequent Event [Line Items]
Principal Amount					$ 16,289,245,000
Senior Notes | 7.875% Notes due February 15, 2018
Subsequent Event [Line Items]
Principal Amount					$ 300,000,000
Stated interest rate					7.875%
Senior Notes | 7.875% Notes due February 15, 2018 | Subsequent Event
Subsequent Event [Line Items]
Extinguishment of debt		$ 300,000,000
Senior Notes | 7.75% Notes due April 15, 2018
Subsequent Event [Line Items]
Principal Amount					$ 750,000,000
Stated interest rate					7.75%
Senior Notes | 7.75% Notes due April 15, 2018 | Subsequent Event
Subsequent Event [Line Items]
Extinguishment of debt		$ 750,000,000

CVC - DESCRIPTION OF BUSINES152

CVC - DESCRIPTION OF BUSINESS, RELATED MATTERS AND BASIS OF PRESENTATION (Details)

Jun. 21, 2016USD ($)

Sep. 16, 2015USD ($)$ / shares

Jun. 20, 2016USD ($)

Dec. 31, 2017USD ($)segment$ / shares

Dec. 31, 2016USD ($)$ / shares

Dec. 31, 2015USD ($)segment$ / shares

Jul. 31, 2017

Jun. 30, 2017USD ($)

Dec. 09, 2016USD ($)

Jul. 31, 2016

Jul. 21, 2016USD ($)

Jul. 06, 2016

Oct. 31, 2015USD ($)

Oct. 12, 2012USD ($)

Business Acquisition [Line Items]

Number of reportable business segments | segment

2

Net interest expense

$ 1,603,132,000

$ 1,456,541,000

Business Combination, Description [Abstract]

Common stock, par value (in dollars per share) | $ / shares

$ 0.01

$ 0.01

Principal Amount

$ 4,693,675,000

Line of credit facility, aggregate principal amount

$ 480,000,000

10.875% Notes due October 15, 2025

Business Combination, Description [Abstract]

Stated interest rate

10.875%

Senior Notes

Business Combination, Description [Abstract]

Principal Amount

16,289,245,000

Senior Notes | 10.125% Notes due January 15, 2023

Business Combination, Description [Abstract]

Principal Amount

$ 1,800,000,000

Stated interest rate

10.125%

Senior Notes | 10.875% Notes due October 15, 2025

Business Combination, Description [Abstract]

Principal Amount

$ 1,684,221,000

$ 2,000,000,000

Stated interest rate

10.875%

Senior Notes | 6.625% Notes due October 15, 2025

Business Combination, Description [Abstract]

Principal Amount

$ 1,000,000,000

Stated interest rate

6.625%

Common Class A

Business Combination, Description [Abstract]

Common stock, par value (in dollars per share) | $ / shares

$ 0.01

Common Class B

Business Combination, Description [Abstract]

Common stock, par value (in dollars per share) | $ / shares

0.01

Cablevision Systems Corp.

Business Combination, Description [Abstract]

Business acquisition, share price (dollars per share) | $ / shares

$ 34.90

Consideration transfered

$ 9,958,323,000

Cablevision Systems Corp. | Common Class A

Business Combination, Description [Abstract]

Common stock, par value (in dollars per share) | $ / shares

0.01

Cablevision Systems Corp. | Common Class B

Business Combination, Description [Abstract]

Common stock, par value (in dollars per share) | $ / shares

$ 0.01

Cablevision Systems Corp. | Neptune Finco Corp. | Term Loan | Senior Secured Credit Facilities

Business Combination, Description [Abstract]

Principal Amount

$ 3,800,000,000

Cablevision Systems Corp. | Neptune Finco Corp. | Term Loan | Revolving Credit Facility | Senior Secured Credit Facilities

Business Combination, Description [Abstract]

Line of credit facility, aggregate principal amount

2,000,000,000

Cablevision Systems Corp. | Neptune Finco Corp. | Senior Notes | 10.125% Notes due January 15, 2023

Business Combination, Description [Abstract]

Principal Amount

$ 1,800,000,000

Stated interest rate

10.125%

Cablevision Systems Corp. | Neptune Finco Corp. | Senior Notes | 10.875% Notes due October 15, 2025

Business Combination, Description [Abstract]

Principal Amount

$ 2,000,000,000

Stated interest rate

10.875%

Cablevision Systems Corp. | Neptune Finco Corp. | Senior Notes | 6.625% Notes due October 15, 2025

Business Combination, Description [Abstract]

Principal Amount

$ 1,000,000,000

Stated interest rate

6.625%

Cablevision Systems Corp. | Affiliates

Business Combination, Description [Abstract]

Consideration transfered

$ 1,000,000,000

Indirect ownership interest by co-investors

30.00%

Cablevision Systems Corporation And Subsidiaries

Business Acquisition [Line Items]

Number of reportable business segments | segment

1

Net interest expense

$ 287,098,000

$ 585,764,000

Business Combination, Description [Abstract]

Consideration transfered

9,958,323,000

Cablevision Systems Corporation And Subsidiaries | Revolving Credit Facility

Business Combination, Description [Abstract]

Line of credit facility, aggregate principal amount

$ 2,300,000,000

$ 2,105,000,000

$ 2,000,000,000

Cablevision Systems Corporation And Subsidiaries | Common Class A

Business Combination, Description [Abstract]

Common stock, par value (in dollars per share) | $ / shares

$ 0.01

Cablevision Systems Corporation And Subsidiaries | Common Class B

Business Combination, Description [Abstract]

Common stock, par value (in dollars per share) | $ / shares

$ 0.01

Cablevision Systems Corporation And Subsidiaries | Altice N.V.

Business Combination, Description [Abstract]

Business acquisition, share price (dollars per share) | $ / shares

$ 34.90

Consideration transfered

$ 9,958,323,000

Cablevision Systems Corporation And Subsidiaries | Neptune Finco Corp. | Term Loan | Revolving Credit Facility | Senior Secured Credit Facilities

Business Combination, Description [Abstract]

Principal Amount

3,800,000,000

Cablevision Systems Corporation And Subsidiaries | Neptune Finco Corp. | Senior Notes | 10.125% Notes due January 15, 2023

Business Combination, Description [Abstract]

Principal Amount

$ 1,800,000,000

Stated interest rate

10.125%

Cablevision Systems Corporation And Subsidiaries | Neptune Finco Corp. | Senior Notes | 10.875% Notes due October 15, 2025

Business Combination, Description [Abstract]

Principal Amount

$ 2,000,000,000

Stated interest rate

10.875%

Cablevision Systems Corporation And Subsidiaries | Neptune Finco Corp. | Senior Notes | 6.625% Notes due October 15, 2025

Business Combination, Description [Abstract]

Principal Amount

$ 1,000,000,000

Stated interest rate

6.625%

Cablevision Systems Corporation And Subsidiaries | Affiliates | Altice N.V.

Business Combination, Description [Abstract]

Consideration transfered

$ 1,000,000,000

Indirect ownership interest by co-investors

30.00%

Cablevision Systems Corporation And Subsidiaries | Cablevision Systems Corp.

Business Combination, Description [Abstract]

Business acquisition, share price (dollars per share) | $ / shares

$ 34.90

Consideration transfered

$ 439,167,000

Newsday

Business Acquisition [Line Items]

Ownership percentage of noncontrolling interest

75.00%

Ownership percentage

25.00%

Newsday | Cablevision Systems Corporation And Subsidiaries

Business Acquisition [Line Items]

Ownership percentage of noncontrolling interest

75.00%

75.00%

Ownership percentage

25.00%

25.00%

CVC - SUMMARY OF SIGNIFICANT153

CVC - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Share-Based Compensation (Details)	6 Months Ended
	Jun. 20, 2016
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (years)	3 years
Cablevision Systems Corporation And Subsidiaries
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	100.00%

CVC - SUMMARY OF SIGNIFICANT154

CVC - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	Jan. 01, 2017	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Gross Versus Net Revenue Recognition [Abstract]
Franchise fees and other taxes and fees			$ 259,075	$ 154,732
Advertising Expenses [Abstract]
Advertising expenses			$ 224,120	$ 135,513
Cablevision Systems Corporation And Subsidiaries
Gross Versus Net Revenue Recognition [Abstract]
Franchise fees and other taxes and fees		$ 95,432			$ 199,701
Advertising Expenses [Abstract]
Advertising expenses		$ 62,760			160,671
Share-Based Compensation [Abstract]
Award vesting percentage		100.00%
Recently Issued But Not Yet Adopted Accounting Pronouncements
Unrealized excess tax benefits recognized with the adoption of ASU 2016-09	$ 309,000
Deferred financing costs, net of accumulated amortization					67,119
Revolving Credit Facility | Cablevision Systems Corporation And Subsidiaries
Recently Issued But Not Yet Adopted Accounting Pronouncements
Deferred financing costs, net of accumulated amortization					$ 7,588

CVC - SUMMARY OF SIGNIFICANT155

CVC - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Common Stock of Cablevision (Details)	6 Months Ended	12 Months Ended
	Jun. 20, 2016shares	Dec. 31, 2016Voteshares	Dec. 31, 2015shares
Common Stock Outstanding [Roll Forward]
Common Stock, Shares, Outstanding, Ending Balance		100
CNYG Class A Common Stock | Cablevision Systems Corporation And Subsidiaries
Common Stock of Cablevision [Abstract]
Number of votes per share of common stock | Vote		1
Number of shares of common stock issued upon conversion (in shares)		1
Percentage of Board of Directors stockholders are entitled to elect (in hundredths)		25.00%
Common Stock Outstanding [Roll Forward]
Common Stock, Shares, Outstanding, Beginning Balance	222,572,210	222,572,210	220,219,935
Employee and non-employee director stock transactions (in shares)	(185,276)		2,352,275
Common Stock, Shares, Outstanding, Ending Balance	222,386,934		222,572,210
CNYG Class B Common Stock | Cablevision Systems Corporation And Subsidiaries
Common Stock of Cablevision [Abstract]
Number of votes per share of common stock | Vote		10
Number of shares of common stock converted (in shares)		1
Common Stock Outstanding [Roll Forward]
Common Stock, Shares, Outstanding, Beginning Balance	54,137,673	54,137,673	54,137,673
Common Stock, Shares, Outstanding, Ending Balance	54,137,673		54,137,673

CVC - SUMMARY OF SIGNIFICANT156

CVC - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Dividends (Details) - Cablevision Systems Corporation And Subsidiaries - USD ($) $ / shares in Units, $ in Thousands	Aug. 06, 2015	May 01, 2015	Feb. 24, 2015	Jun. 20, 2016	Dec. 31, 2015
Dividends [Abstract]
Dividend per share (in dollars per share)				$ 0	$ 0.45
Dividends paid by Cablevision				$ 4,066	$ 125,170
Restricted Stock
Dividends [Abstract]
Dividends paid by Cablevision					$ 3,935
Dividend Declared 2015 Q3 | CNYG Class A Common Stock
Dividends [Abstract]
Dividend, declaration date	Aug. 6, 2015
Dividend per share (in dollars per share)	$ 0.15
Dividend, record date	Aug. 21, 2015
Dividend, payment date	Sep. 10, 2015
Dividend Declared 2015 Q3 | CNYG Class B Common Stock
Dividends [Abstract]
Dividend, declaration date	Aug. 6, 2015
Dividend per share (in dollars per share)	$ 0.15
Dividend, record date	Aug. 21, 2015
Dividend, payment date	Sep. 10, 2015
Dividend Declared 2015 Q2 | CNYG Class A Common Stock
Dividends [Abstract]
Dividend, declaration date		May 1, 2015
Dividend per share (in dollars per share)		$ 0.15
Dividend, record date		May 22, 2015
Dividend, payment date		Jun. 12, 2015
Dividend Declared 2015 Q2 | CNYG Class B Common Stock
Dividends [Abstract]
Dividend, declaration date		May 1, 2015
Dividend per share (in dollars per share)		$ 0.15
Dividend, record date		May 22, 2015
Dividend, payment date		Jun. 12, 2015
Dividend Declared 2015 Q1 | CNYG Class A Common Stock
Dividends [Abstract]
Dividend, declaration date			Feb. 24, 2015
Dividend per share (in dollars per share)			$ 0.15
Dividend, record date			Mar. 16, 2015
Dividend, payment date			Apr. 3, 2015
Dividend Declared 2015 Q1 | CNYG Class B Common Stock
Dividends [Abstract]
Dividend, declaration date			Feb. 24, 2015
Dividend per share (in dollars per share)			$ 0.15
Dividend, record date			Mar. 16, 2015
Dividend, payment date			Apr. 3, 2015

CVC - SUMMARY OF SIGNIFICANT157

CVC - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Income (Loss) Per Common Share (Details) - shares	3 Months Ended	6 Months Ended	12 Months Ended
	Dec. 31, 2017	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reconciliation of Weighted Average Shares Used in Calculations of Basic and Diluted Net Income Per Share [Abstract]
Basic weighted average common shares (in thousands)			696,055,000	649,525,000
Effect of dilution:
Diluted weighted average common shares (in shares)	696,055,000		696,055,000	649,525,000
Antidilutive securities excluded from diluted weighted average shares outstanding (in shares)			14,000
Cablevision Systems Corporation And Subsidiaries
Reconciliation of Weighted Average Shares Used in Calculations of Basic and Diluted Net Income Per Share [Abstract]
Basic weighted average common shares (in thousands)		272,035,000		272,035,000	269,388,000
Effect of dilution:
Stock options (in shares)				4,444,000	3,532,000
Restricted stock awards (in shares)				3,720,000	3,419,000
Diluted weighted average common shares (in shares)		280,199,000		280,199,000	276,339,000
Stock Options | Cablevision Systems Corporation And Subsidiaries
Effect of dilution:
Antidilutive securities excluded from diluted weighted average shares outstanding (in shares)				0	1,160,000
Performance Shares | Cablevision Systems Corporation And Subsidiaries
Effect of dilution:
Antidilutive securities excluded from diluted weighted average shares outstanding (in shares)					1,772,000

CVC - ALLOWANCE FOR DOUBTFUL158

CVC - ALLOWANCE FOR DOUBTFUL ACCOUNTS (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Activity related to the allowance for doubtful accounts
Beginning balance	$ 1,051	$ 11,677	$ 1,051
Provision for Bad Debt		74,183	53,249
Deductions/Write-Offs and Other Charges		(72,440)	(42,623)
Ending balance		$ 13,420	11,677	$ 1,051
Cablevision Systems Corporation And Subsidiaries
Activity related to the allowance for doubtful accounts
Beginning balance	6,039		$ 6,039	12,112
Provision for Bad Debt	13,240			35,802
Deductions/Write-Offs and Other Charges	(12,378)			(41,875)
Ending balance	$ 6,901			$ 6,039

CVC - SUPPLEMENTAL CASH FLOW159

CVC - SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Continuing Operations:
Property and equipment accrued but unpaid		$ 171,604	$ 155,653
Notes payable to vendor		40,131	12,449
Capital lease obligations		9,385	0
Supplemental Data:
Cash interest paid		1,765,126	1,192,370
Income taxes paid, net		$ 29,006	$ 1,538
Cablevision Systems Corporation And Subsidiaries
Continuing Operations:
Property and equipment accrued but unpaid	$ 68,356			$ 63,843
Notes payable to vendor				8,318
Capital lease obligations				19,987
Intangible asset obligations	290			1,121
Supplemental Data:
Cash interest paid	258,940			560,361
Income taxes paid, net	$ 7,082			3,849
Cablevision Systems Corporation And Subsidiaries | Restricted Stock
Continuing Operations:
Dividends payable on unvested restricted share awards				$ 3,517

CVC - RESTRUCTURING AND OTHE160

CVC - RESTRUCTURING AND OTHER EXPENSE (Details) - USD ($) $ in Thousands	Jun. 21, 2016	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Restructuring Reserve [Roll Forward]
Restructuring charges			$ 149,922	$ 226,577
Transaction costs			2,479	13,845
Elimination of positions
Restructuring Reserve [Roll Forward]
Restructuring charges			142,679	215,420
Facility Realignment and Other Costs
Restructuring Reserve [Roll Forward]
Restructuring charges			$ 7,243	$ 11,157
Cablevision Systems Corporation And Subsidiaries
Restructuring Reserve [Roll Forward]
Restructuring charges		$ 2,299			$ (1,649)
Transaction costs	$ 12,920	$ 19,924			$ 17,862
Cablevision Systems Corporation And Subsidiaries | Elimination of positions | 2016 Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring charges	188,847
Cablevision Systems Corporation And Subsidiaries | Facility Realignment and Other Costs | 2016 Restructuring Plan
Restructuring Reserve [Roll Forward]
Restructuring charges	$ 10,410

CVC - DISCONTINUED OPERATIONS (

CVC - DISCONTINUED OPERATIONS (Details) - Cablevision Systems Corporation And Subsidiaries - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2015
DISCONTINUED OPERATIONS
Income (loss) before income taxes		$ 21,272
Income (loss) from discontinued operations, net of income taxes	$ 0	12,541
Discontinued operations, legal matter expense		21,000
Discontinued operations legal matter, aggregate expense, including statutory interest, net of taxes		$ 12,380

CVC - PROPERTY, PLANT AND EQ162

CVC - PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		$ 8,663,408	$ 7,636,932
Less accumulated depreciation and amortization		(2,599,579)	(1,039,297)
Property, plant and equipment, net		6,063,829	6,597,635
Depreciation expense on property, plant and equipment, including capital leases		1,588,668	1,046,896
Headends and related equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		1,626,293	1,482,631
Infrastructure
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		3,998,503	3,740,494
Equipment and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		917,698	735,012
Construction in progress (including materials and supplies)
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		286,702	84,321
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		52,545	45,576
Transportation equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		137,886	135,488
Buildings and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		394,421	390,337
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		108,071	104,309
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		$ 47,563	$ 47,715
Minimum | Headends and related equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life		4 years
Minimum | Infrastructure
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life		3 years
Minimum | Equipment and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life		3 years
Minimum | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life		5 years
Minimum | Transportation equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life		5 years
Minimum | Buildings and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life		10 years
Maximum | Headends and related equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life		25 years
Maximum | Infrastructure
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life		25 years
Maximum | Equipment and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life		10 years
Maximum | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life		12 years
Maximum | Transportation equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life		10 years
Maximum | Buildings and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life		40 years
Cablevision Systems Corporation And Subsidiaries
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross				$ 12,642,363
Less accumulated depreciation and amortization				(9,625,348)
Property, plant and equipment, net				3,017,015
Depreciation expense on property, plant and equipment, including capital leases	$ 404,234			857,440
Cablevision Systems Corporation And Subsidiaries | New Connections for Residence Wiring
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Cablevision Systems Corporation And Subsidiaries | Customer equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross				1,952,336
Cablevision Systems Corporation And Subsidiaries | Headends and related equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross				2,388,289
Cablevision Systems Corporation And Subsidiaries | Infrastructure
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross				5,639,226
Cablevision Systems Corporation And Subsidiaries | Equipment and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross				1,577,616
Cablevision Systems Corporation And Subsidiaries | Construction in progress (including materials and supplies)
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross				87,412
Cablevision Systems Corporation And Subsidiaries | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross				96,561
Cablevision Systems Corporation And Subsidiaries | Transportation equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross				210,013
Cablevision Systems Corporation And Subsidiaries | Buildings and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross				322,267
Cablevision Systems Corporation And Subsidiaries | Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross				354,136
Cablevision Systems Corporation And Subsidiaries | Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross				14,507
Cablevision Systems Corporation And Subsidiaries | Software Development
Property, Plant and Equipment [Line Items]
Aggregate capitalized costs	$ 58,409			$ 144,349
Cablevision Systems Corporation And Subsidiaries | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life			2 years
Cablevision Systems Corporation And Subsidiaries | Minimum | Cable Television System Plant
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years
Cablevision Systems Corporation And Subsidiaries | Minimum | Headend Facilities
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	4 years
Cablevision Systems Corporation And Subsidiaries | Minimum | Customer equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life				3 years
Cablevision Systems Corporation And Subsidiaries | Minimum | Headends and related equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life				4 years
Cablevision Systems Corporation And Subsidiaries | Minimum | Infrastructure
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life				3 years
Cablevision Systems Corporation And Subsidiaries | Minimum | Equipment and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life				3 years
Cablevision Systems Corporation And Subsidiaries | Minimum | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life				5 years
Cablevision Systems Corporation And Subsidiaries | Minimum | Transportation equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life				5 years
Cablevision Systems Corporation And Subsidiaries | Minimum | Buildings and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life				10 years
Cablevision Systems Corporation And Subsidiaries | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life			18 years
Cablevision Systems Corporation And Subsidiaries | Maximum | Cable Television System Plant
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	25 years
Cablevision Systems Corporation And Subsidiaries | Maximum | Headend Facilities
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	25 years
Cablevision Systems Corporation And Subsidiaries | Maximum | Customer equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life				5 years
Cablevision Systems Corporation And Subsidiaries | Maximum | Headends and related equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life				25 years
Cablevision Systems Corporation And Subsidiaries | Maximum | Infrastructure
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life				25 years
Cablevision Systems Corporation And Subsidiaries | Maximum | Equipment and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life				10 years
Cablevision Systems Corporation And Subsidiaries | Maximum | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life				12 years
Cablevision Systems Corporation And Subsidiaries | Maximum | Transportation equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life				18 years
Cablevision Systems Corporation And Subsidiaries | Maximum | Buildings and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life				40 years

CVC - PROPERTY, PLANT AND EQ163

CVC - PROPERTY, PLANT AND EQUIPMENT - Assets under Capital Lease (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Assets under capital lease
Buildings and equipment	$ 48,936	$ 53,833
Less accumulated amortization	(12,972)	(6,306)
Capital leased assets, net	$ 35,964	$ 47,527
Cablevision Systems Corporation And Subsidiaries | Equipment
Assets under capital lease
Buildings and equipment			$ 90,099
Less accumulated amortization			(28,119)
Capital leased assets, net			$ 61,980

CVC - OPERATING LEASES (Details

CVC - OPERATING LEASES (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2015	Dec. 31, 2017
Future minimum annual payments for all operating leases
2,017			$ 74,992
2,018			72,142
2,019			69,203
2,020			63,735
2,021			55,234
Thereafter			$ 140,406
Cablevision Systems Corporation And Subsidiaries
Rent expense, including pole rentals	$ 41,573	$ 82,704
Future minimum annual payments for all operating leases
2,017	57,853
2,018	52,206
2,019	44,908
2,020	41,221
2,021	38,697
Thereafter	$ 141,063

CVC - INTANGIBLE ASSETS - Summa

CVC - INTANGIBLE ASSETS - Summary of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 7,075,027	$ 7,019,410
Accumulated Amortization		(2,008,573)	(666,766)
Net Carrying Amount		5,066,454	6,352,644
Amortization of intangible assets	$ 10,316	1,341,807	653,410	$ 7,812
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		5,970,884	5,925,884
Accumulated Amortization		(1,409,021)	(580,276)
Net Carrying Amount		4,561,863	5,345,608
Amortizable intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		37,060	26,743
Accumulated Amortization		(10,978)	(3,093)
Net Carrying Amount		$ 26,082	$ 23,650
Minimum | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life		8 years
Minimum | Amortizable intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life		1 year
Maximum | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life		18 years
Maximum | Amortizable intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life		15 years
Cablevision Systems Corporation And Subsidiaries
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				97,261
Accumulated Amortization				(60,310)
Net Carrying Amount				36,951
Cablevision Systems Corporation And Subsidiaries | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				39,414
Accumulated Amortization				(27,778)
Net Carrying Amount				11,636
Cablevision Systems Corporation And Subsidiaries | Amortizable intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount				57,847
Accumulated Amortization				(32,532)
Net Carrying Amount				$ 25,315
Cablevision Systems Corporation And Subsidiaries | Minimum | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			8 years	10 years
Cablevision Systems Corporation And Subsidiaries | Minimum | Amortizable intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			1 year	3 years
Cablevision Systems Corporation And Subsidiaries | Maximum | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			18 years	18 years
Cablevision Systems Corporation And Subsidiaries | Maximum | Amortizable intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			15 years	28 years

CVC - INTANGIBLE ASSETS - Su166

CVC - INTANGIBLE ASSETS - Summary of Acquired Indefinite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Jun. 20, 2016	Dec. 31, 2015
Acquired Indefinite-lived Intangible Assets [Line Items]
Cable television franchises	$ 13,020,081	$ 13,020,081
Goodwill	7,996,760	7,992,700		$ 2,040,402
Total	$ 21,016,841	21,012,781
Cablevision Systems Corporation And Subsidiaries
Acquired Indefinite-lived Intangible Assets [Line Items]
Goodwill		$ 5,838,959	$ 262,345	262,345
Total				1,001,443
Cablevision Systems Corporation And Subsidiaries | Cable television franchises
Acquired Indefinite-lived Intangible Assets [Line Items]
Cable television franchises				731,848
Cablevision Systems Corporation And Subsidiaries | Trademarks and other assets
Acquired Indefinite-lived Intangible Assets [Line Items]
Cable television franchises				$ 7,250

CVC - INTANGIBLE ASSETS - Goodw

CVC - INTANGIBLE ASSETS - Goodwill (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Jun. 20, 2016
Goodwill [Roll Forward]
Goodwill, ending balance	$ 2,040,402,000
Cablevision Systems Corporation And Subsidiaries
Goodwill [Roll Forward]
Accumulated impairment losses		$ (334,058,000)
Goodwill, ending balance	262,345,000
Goodwill impairments	0
Predecessor | Cablevision Systems Corporation And Subsidiaries
Goodwill [Roll Forward]
Goodwill, ending balance	$ 596,403,000

CVC - DEBT - Restricted Group C

CVC - DEBT - Restricted Group Credit Facility (Details) - USD ($) $ in Thousands	Apr. 17, 2013	Oct. 12, 2012	Apr. 30, 2015	Jun. 20, 2016	Dec. 31, 2015	Dec. 09, 2016	Jul. 21, 2016	Oct. 31, 2015
Restricted Group Credit Facility [Abstract]
Line of credit facility, aggregate principal amount		$ 480,000
Eurodollar
Restricted Group Credit Facility [Abstract]
Basis spread on variable rate		3.50%
Base Rate
Restricted Group Credit Facility [Abstract]
Basis spread on variable rate		2.50%
Restricted Group
Restricted Group Credit Facility [Abstract]
Issue Discount					$ 11,200
Restricted Group | Revolving Credit Facility
Restricted Group Credit Facility [Abstract]
Line of credit facility, aggregate principal amount	$ 1,500,000
Restricted Group | Term A Loan Facility
Restricted Group Credit Facility [Abstract]
Line of credit facility, aggregate principal amount	$ 958,510
Restricted Group | Term A Loan Facility | Eurodollar | Minimum
Restricted Group Credit Facility [Abstract]
Basis spread on variable rate	1.50%
Restricted Group | Term A Loan Facility | Eurodollar | Maximum
Restricted Group Credit Facility [Abstract]
Basis spread on variable rate	2.25%
Restricted Group | Term A Loan Facility | Base Rate | Minimum
Restricted Group Credit Facility [Abstract]
Basis spread on variable rate	0.50%
Restricted Group | Term A Loan Facility | Base Rate | Maximum
Restricted Group Credit Facility [Abstract]
Basis spread on variable rate	1.25%
Restricted Group | Term B Loan Facility
Restricted Group Credit Facility [Abstract]
Line of credit facility, aggregate principal amount	$ 1,200,000
Write-off of deferred financings costs					1,004
Repayments of credit facility debt			$ 200,000
Gain (loss) on extinguishment of debt					$ 731
Restricted Group | Term B Loan Facility | Eurodollar
Restricted Group Credit Facility [Abstract]
Basis spread on variable rate	2.50%
Restricted Group | Term B Loan Facility | Base Rate
Restricted Group Credit Facility [Abstract]
Basis spread on variable rate	1.50%
Revolving Credit Facility | Cablevision Systems Corporation And Subsidiaries
Restricted Group Credit Facility [Abstract]
Line of credit facility, aggregate principal amount						$ 2,300,000	$ 2,105,000	$ 2,000,000
Revolving Credit Facility | Eurodollar
Restricted Group Credit Facility [Abstract]
Basis spread on variable rate				3.25%
Revolving Credit Facility | Restricted Group
Restricted Group Credit Facility [Abstract]
Commitment fee percentage (in hundredths)	0.30%

CVC - DEBT - Newsday LLC Credit

CVC - DEBT - Newsday LLC Credit Facility (Details) - USD ($) $ in Thousands	Oct. 12, 2012	Dec. 31, 2017	Dec. 31, 2016
Credit facility debt [Abstract]
Line of credit facility, aggregate principal amount	$ 480,000
Notes payable to affiliates and related parties	$ 611,455	$ 0	$ 1,750,000
Base Rate
Credit facility debt [Abstract]
Basis spread on variable rate	2.50%
Eurodollar
Credit facility debt [Abstract]
Basis spread on variable rate	3.50%

CVC - DEBT - Credit Facility De

CVC - DEBT - Credit Facility Debt (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Credit facility debt [Abstract]
Principal	$ 4,693,675,000
Credit facility	$ 4,643,523,000	$ 3,444,790,000
Restricted Group
Credit facility debt [Abstract]
Debt unamortized discount			$ 11,200,000
Cablevision Systems Corporation And Subsidiaries | Restricted Group
Credit facility debt [Abstract]
Credit facility			$ 2,035,332,000
Cablevision Systems Corporation And Subsidiaries | Restricted Group | Term A Loan Facility
Credit facility debt [Abstract]
Stated interest rate			2.17%
Principal			$ 886,621,000
Credit facility			$ 885,105,000
Cablevision Systems Corporation And Subsidiaries | Restricted Group | Term B Loan Facility
Credit facility debt [Abstract]
Stated interest rate			2.92%
Principal			$ 1,159,031,000
Credit facility			$ 1,150,227,000

CVC - DEBT - Senior Notes and D

CVC - DEBT - Senior Notes and Debentures (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Oct. 12, 2012
Senior Notes and Debentures [Abstract]
Principal Amount	$ 4,693,675,000
Senior notes due to Newsday	0	$ 1,750,000,000		$ 611,455,000
Senior Notes
Senior Notes and Debentures [Abstract]
Principal Amount	$ 16,289,245,000
Cablevision Systems Corporation And Subsidiaries | Debentures | 7.875% Debentures due February 2018
Senior Notes and Debentures [Abstract]
Stated interest rate			7.875%
Principal Amount			$ 300,000,000
Carrying amount			$ 299,091,000
Cablevision Systems Corporation And Subsidiaries | Debentures | 7.625% Debentures due July 2018
Senior Notes and Debentures [Abstract]
Stated interest rate			7.625%
Principal Amount			$ 500,000,000
Carrying amount			$ 498,942,000
Cablevision Systems Corporation And Subsidiaries | Senior Notes | Senior 8.625% Notes due February 2019
Senior Notes and Debentures [Abstract]
Stated interest rate			8.625%
Principal Amount			$ 526,000,000
Carrying amount			$ 511,079,000
Cablevision Systems Corporation And Subsidiaries | Senior Notes | Senior 6.75% Notes due November 2021
Senior Notes and Debentures [Abstract]
Stated interest rate			6.75%
Principal Amount			$ 1,000,000,000
Carrying amount			$ 985,640,000
Cablevision Systems Corporation And Subsidiaries | Senior Notes | Senior 5.25% Notes due June 1, 2024
Senior Notes and Debentures [Abstract]
Stated interest rate			5.25%
Principal Amount			$ 750,000,000
Carrying amount			$ 737,500,000
Cablevision Systems Corporation And Subsidiaries | Senior Notes | Senior 8.625% Notes due September 2017
Senior Notes and Debentures [Abstract]
Stated interest rate			8.625%
Principal Amount			$ 900,000,000
Carrying amount			$ 891,238,000
Cablevision Systems Corporation And Subsidiaries | Senior Notes | Senior 7.75% Notes due April 2018
Senior Notes and Debentures [Abstract]
Stated interest rate			7.75%
Principal Amount			$ 750,000,000
Carrying amount			744,402,000
Senior notes due to Newsday			$ 345,238,000
Cablevision Systems Corporation And Subsidiaries | Senior Notes | Senior 8% Notes due April 2020
Senior Notes and Debentures [Abstract]
Stated interest rate			8.00%
Principal Amount			$ 500,000,000
Carrying amount			494,410,000
Senior notes due to Newsday			$ 266,217,000
Cablevision Systems Corporation And Subsidiaries | Senior Notes | Senior 5.875% Notes due September 2022
Senior Notes and Debentures [Abstract]
Stated interest rate			5.875%
Principal Amount			$ 649,024,000
Carrying amount			$ 638,709,000

CVC - DEBT - Issuance of Debt S

CVC - DEBT - Issuance of Debt Securities (Details) - USD ($)	1 Months Ended
	Apr. 30, 2015	Dec. 31, 2017	Dec. 31, 2015
Issuance of Debt Securities [Abstract]
Principal Amount		$ 4,693,675,000
Restricted Group | Term B Loan Facility
Issuance of Debt Securities [Abstract]
Repayments of credit facility debt	$ 200,000,000
Senior Notes
Issuance of Debt Securities [Abstract]
Principal Amount		$ 16,289,245,000
Cablevision Systems Corporation And Subsidiaries | Restricted Group | Term B Loan Facility
Issuance of Debt Securities [Abstract]
Principal Amount			$ 1,159,031,000
Cablevision Systems Corporation And Subsidiaries | Senior Notes | Senior 5.25% Notes due June 1, 2024
Issuance of Debt Securities [Abstract]
Principal Amount			$ 750,000,000
Stated interest rate			5.25%

CVC - DEBT - Repurchases of Cab

CVC - DEBT - Repurchases of Cablevision Senior Notes (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Oct. 12, 2012
Debt Instrument [Line Items]
Notes payable to affiliates and related parties	$ 0	$ 1,750,000		$ 611,455
Cablevision Systems Corporation And Subsidiaries | Senior Notes | Due April152018 [Member]
Debt Instrument [Line Items]
Notes payable to affiliates and related parties			$ 345,238
Repurchases of Cablevision Senior Notes [Abstract]
Stated interest rate			7.75%
Cablevision Systems Corporation And Subsidiaries | Senior Notes | Senior 5.875% Notes due September 2022
Repurchases of Cablevision Senior Notes [Abstract]
Stated interest rate			5.875%
Cablevision Systems Corporation And Subsidiaries | Senior Notes | Due April152020 [Member]
Debt Instrument [Line Items]
Notes payable to affiliates and related parties			$ 266,217
Repurchases of Cablevision Senior Notes [Abstract]
Stated interest rate			8.00%

CVC - DEBT - Debt Transaction S

CVC - DEBT - Debt Transaction Subsequent to Merger (Details)

Oct. 11, 2016USD ($)

Apr. 26, 2016USD ($)

Apr. 17, 2013USD ($)

Oct. 12, 2012USD ($)

Oct. 31, 2016USD ($)

Jun. 20, 2016USD ($)

Sep. 30, 2016USD ($)

Dec. 31, 2017USD ($)

Dec. 31, 2016USD ($)

Dec. 09, 2016USD ($)

Jul. 21, 2016USD ($)

Jun. 21, 2016USD ($)

Oct. 31, 2015USD ($)

Debt Instrument [Line Items]

Principal Amount

$ 4,693,675,000

Credit facility

$ 4,643,523,000

$ 3,444,790,000

Line of credit facility, aggregate principal amount

$ 480,000,000

Repayments of lines of credit

$ 1,477,200,000

Document Period End Date

Dec. 31, 2017

Base Rate

Debt Instrument [Line Items]

Basis spread on variable rate

2.50%

Eurodollar

Debt Instrument [Line Items]

Basis spread on variable rate

3.50%

Senior Notes

Debt Instrument [Line Items]

Principal Amount

$ 16,289,245,000

CSC Credit Facilities

Debt Instrument [Line Items]

Percentage of proceeds from asset sales required to pay down term loans

100.00%

Percentage of excess cash flow required when minimum leverage ratio is not met

50.00%

Percentage of excess cash flow required to pay down term loans when minimum leverage ratio is fulfilled

0.00%

Minimum debt leverage ratio required for zero percent of excess cash flow obligation to prepay debt

4.5

Line of credit facility, covenant, leverage ratio

5

Line of credit facility, covenant, minimum undrawn letters of credit

$ 15,000,000

Revolving Credit Facility | Eurodollar

Debt Instrument [Line Items]

Basis spread on variable rate

3.25%

Term Loan

Debt Instrument [Line Items]

Repayments of lines of credit

$ 2,030,699,000

$ 480,000,000

Deferred financing costs

$ 7,249,000

Issue Discount

6,250,000

Term Loan | Base Rate

Debt Instrument [Line Items]

Basis spread on variable rate

2.25%

Cablevision Systems Corporation And Subsidiaries | Senior Notes Due 2023 | Senior Notes

Debt Instrument [Line Items]

Principal Amount

$ 1,800,000,000

Cablevision Systems Corporation And Subsidiaries | Senior Notes Due 2025 | Senior Notes

Debt Instrument [Line Items]

Principal Amount

2,000,000,000

Cablevision Systems Corporation And Subsidiaries | Guaranteed Senior Notes Due 2025 | Senior Notes

Debt Instrument [Line Items]

Principal Amount

1,000,000,000

Cablevision Systems Corporation And Subsidiaries | Guaranteed Senior Notes Due 2027 | Senior Notes

Debt Instrument [Line Items]

Stated interest rate

5.50%

Proceeds from credit facility debt

$ 1,310,000,000

Cablevision Systems Corporation And Subsidiaries | CSC Credit Facilities

Debt Instrument [Line Items]

Percentage of proceeds from asset sales required to pay down term loans

100.00%

Percentage of excess cash flow required when minimum leverage ratio is not met

50.00%

Percentage of excess cash flow required to pay down term loans when minimum leverage ratio is fulfilled

0.00%

Minimum debt leverage ratio required for zero percent of excess cash flow obligation to prepay debt

4.5

Line of credit facility, covenant, leverage ratio

5

Line of credit facility, covenant, minimum undrawn letters of credit

$ 15,000,000

Cablevision Systems Corporation And Subsidiaries | Revolving Credit Facility

Debt Instrument [Line Items]

Line of credit facility, aggregate principal amount

$ 2,300,000,000

$ 2,105,000,000

2,000,000,000

Line of credit facility, increase in borrowing capacity

$ 35,000,000

$ 70,000,000

Cablevision Systems Corporation And Subsidiaries | Revolving Credit Facility | Revolving Credit Facility Due 2020

Debt Instrument [Line Items]

Line of credit facility, increase in borrowing capacity

20,000,000

Cablevision Systems Corporation And Subsidiaries | Revolving Credit Facility | Revolving Credit Facility Due 2021

Debt Instrument [Line Items]

Line of credit facility, increase in borrowing capacity

$ 2,280,000,000

Cablevision Systems Corporation And Subsidiaries | Term Loan

Debt Instrument [Line Items]

Principal Amount

$ 3,800,000,000

Line of credit facility periodic payment, percentage of principal

0.25%

Write-off the deferred financing costs and the unamortized discount

$ 102,894,000

Line of credit facility, periodic payment amount

$ 9,500,000

Cablevision Systems Corporation And Subsidiaries | Term Loan | Base Rate

Debt Instrument [Line Items]

Basis spread on variable rate

2.00%

Cablevision Systems Corporation And Subsidiaries | Term Loan | Extended Term Loan

Debt Instrument [Line Items]

Basis spread on variable rate

3.75%

Cablevision Systems Corporation And Subsidiaries | Term Loan | Extended Term Loan | Eurodollar

Debt Instrument [Line Items]

Basis spread on variable rate

3.00%

Cablevision Systems Corporation And Subsidiaries | Term Loan | Extended Term Loan | LIBOR

Debt Instrument [Line Items]

Basis spread on variable rate

0.75%

CVC - DEBT - Summary of Debt Ma

CVC - DEBT - Summary of Debt Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Jun. 20, 2016
Summary of Debt Maturities [Abstract]
2,017	$ 1,635,612
2,018	583,914
2,019	1,615,615
2,020	4,183,992
2,021	693,434
Thereafter	$ 13,796,783
Cablevision Systems Corporation And Subsidiaries
Summary of Debt Maturities [Abstract]
2,017		$ 9,884,024
2,018		1,200,256
2,019		526,340
2,020		557,348
2,021		2,103,441
Thereafter		$ 1,719,180

CVC - DERIVATIVE CONTRACTS A176

CVC - DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Location of Assets and Liabilities Within the Consolidated Balance Sheets (Details) - Not Designated as Hedging Instruments - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Derivative Instruments, Fair Value [Abstract]
Asset Derivatives	$ 52,545	$ 10,956
Liability Derivatives	239,951	91,981
Prepaid forward contracts | Current derivative contracts
Derivative Instruments, Fair Value [Abstract]
Asset Derivatives	52,545	352
Liability Derivatives	52,545	13,158
Prepaid forward contracts | Long-term derivative contracts
Derivative Instruments, Fair Value [Abstract]
Asset Derivatives	0	10,604
Liability Derivatives	$ 109,504	$ 0
Cablevision Systems Corporation And Subsidiaries
Derivative Instruments, Fair Value [Abstract]
Asset Derivatives			$ 82,408
Liability Derivatives			2,706
Cablevision Systems Corporation And Subsidiaries | Prepaid forward contracts | Current derivative contracts
Derivative Instruments, Fair Value [Abstract]
Asset Derivatives			10,333
Liability Derivatives			2,706
Cablevision Systems Corporation And Subsidiaries | Prepaid forward contracts | Long-term derivative contracts
Derivative Instruments, Fair Value [Abstract]
Asset Derivatives			$ 72,075

CVC - DERIVATIVE CONTRACTS A177

CVC - DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Settlements of Collateralized Indebtedness (Details) $ in Thousands	1 Months Ended	6 Months Ended	12 Months Ended
	Feb. 28, 2017	Jun. 20, 2016USD ($)shares	Dec. 31, 2017USD ($)shares	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)shares
Derivative [Line Items]
Number of shares (in shares) | shares			26,815,368
Collateralized indebtedness settled			$ (774,703)
Derivative contracts settled			(56,356)
Derivatives contracts settled			(831,059)	$ (143,102)
Proceeds from new monetization contracts			838,794	$ 179,388
Net cash proceeds			$ 7,735
Comcast
Derivative [Line Items]
Stock spit, conversion ratio	2
Cablevision Systems Corporation And Subsidiaries
Derivative [Line Items]
Number of shares (in shares) | shares		10,802,118			26,815,368
Collateralized indebtedness settled		$ (273,519)			$ (569,562)
Derivative contracts settled		(8,075)			(69,675)
Derivatives contracts settled		(281,594)			(639,237)
Proceeds from new monetization contracts		337,149			774,703
Net cash proceeds		$ 55,555			$ 135,466

CVC - DERIVATIVE CONTRACTS A178

CVC - DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Gain on investments, net		$ 237,354	$ 141,896
Investment securities pledged as collateral		$ 0	741,515
Document Period End Date		Dec. 31, 2017
Prepaid forward contracts
Derivative [Line Items]
Unrealized and realized gains (losses) of derivative contracts		$ (138,920)	(53,696)
Amount of gain (loss) recognized		$ (138,920)	$ (53,696)
Cablevision Systems Corporation And Subsidiaries
Derivative [Line Items]
Gain on investments, net	$ 129,990			$ (30,208)
Investment securities pledged as collateral				455,386
Cablevision Systems Corporation And Subsidiaries | Investment securities pledged as collateral
Derivative [Line Items]
Gain on investments, net	129,510			(33,935)
Cablevision Systems Corporation And Subsidiaries | Prepaid forward contracts
Derivative [Line Items]
Unrealized and realized gains (losses) of derivative contracts	(36,283)			104,927
Amount of gain (loss) recognized	$ (36,283)			$ 104,927

CVC - FAIR VALUE MEASUREMENT -

CVC - FAIR VALUE MEASUREMENT - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value Measured on a Recurring Basis - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Prepaid forward contracts | Level II
Assets:
Derivative asset	$ 52,545	$ 10,956
Liabilities:
Derivative liability	162,049	13,158
Investment securities pledged as collateral | Level I
Assets:
Investment securities	1,720,357	1,483,030
Money market funds (of which $14,700 is classified as restricted cash as of December 31, 2016) | Level I
Assets:
Cash and cash equivalents	$ 5,949	$ 100,139
Cablevision Systems Corporation And Subsidiaries
Assets:
Investment securities			$ 130
Cablevision Systems Corporation And Subsidiaries | Level I
Assets:
Investment securities			130
Cablevision Systems Corporation And Subsidiaries | Prepaid forward contracts
Assets:
Derivative asset			82,408
Liabilities:
Derivative liability			2,706
Cablevision Systems Corporation And Subsidiaries | Prepaid forward contracts | Level II
Assets:
Derivative asset			82,408
Liabilities:
Derivative liability			2,706
Cablevision Systems Corporation And Subsidiaries | Investment securities pledged as collateral
Assets:
Investment securities			1,211,982
Cablevision Systems Corporation And Subsidiaries | Investment securities pledged as collateral | Level I
Assets:
Investment securities			1,211,982
Cablevision Systems Corporation And Subsidiaries | Money market funds (of which $14,700 is classified as restricted cash as of December 31, 2016)
Assets:
Cash and cash equivalents			922,765
Cablevision Systems Corporation And Subsidiaries | Money market funds (of which $14,700 is classified as restricted cash as of December 31, 2016) | Level I
Assets:
Cash and cash equivalents			$ 922,765

CVC - FAIR VALUE MEASUREMENT180

CVC - FAIR VALUE MEASUREMENT - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Document Period End Date	Dec. 31, 2017
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	$ 21,919,331	$ 24,001,910
Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	$ 23,279,471	$ 25,896,046
Cablevision Systems Corporation And Subsidiaries | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value			$ 9,521,333
Cablevision Systems Corporation And Subsidiaries | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value			9,473,141
Cablevision Systems Corporation And Subsidiaries | Credit facility debt | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value			2,514,454
Cablevision Systems Corporation And Subsidiaries | Credit facility debt | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value			2,525,654
Cablevision Systems Corporation And Subsidiaries | Term Loan | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value			1,191,324
Cablevision Systems Corporation And Subsidiaries | Term Loan | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value			1,176,396
Cablevision Systems Corporation And Subsidiaries | Senior notes and debentures | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value			5,801,011
Cablevision Systems Corporation And Subsidiaries | Senior notes and debentures | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value			5,756,608
Cablevision Systems Corporation And Subsidiaries | Notes payable | Carrying Amount | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value			14,544
Cablevision Systems Corporation And Subsidiaries | Notes payable | Estimated Fair Value | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value			$ 14,483

CVC - INCOME TAXES - Income tax

CVC - INCOME TAXES - Income tax benefit (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current expense (benefit):
Federal		$ 5,657	$ (981)
State		12,509	5,310
Total current expense (benefit)		18,166	4,329
Deferred benefit:
Federal		(2,088,652)	(223,159)
State		(782,492)	(40,830)
Total deferred benefit		(2,871,144)	(263,989)
Tax benefit relating to uncertain tax positions		11	(6)
Income tax benefit		$ (2,852,967)	$ (259,666)
Income tax benefit attributable to discontinued operations				$ 8,731
Current income tax benefit, discontinued operations				111
Deferred income tax benefit, noncurrent				8,620
Cablevision Systems Corporation And Subsidiaries
Current expense (benefit):
Federal	$ 6,473			4,844
State	1,917			15,869
Total current expense (benefit)	8,390			20,713
Deferred benefit:
Federal	93,253			97,927
State	22,897			35,469
Total deferred benefit	116,150			133,396
Tax benefit relating to uncertain tax positions	308			763
Income tax benefit	$ 124,848			$ 154,872

CVC - INCOME TAXES - Rate recon

CVC - INCOME TAXES - Rate reconciliation (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Taxes [Line Items]
Federal tax benefit at statutory rate		$ (465,972)	$ (381,901)
State income taxes, net of federal impact		(59,719)	(39,336)
Changes in the valuation allowance		(111)	297
Other non-deductible expenses		3,349	1,551
Other, net		434	(2,882)
Income tax benefit		$ (2,852,967)	$ (259,666)
Cablevision Systems Corporation And Subsidiaries
Income Taxes [Line Items]
Federal tax benefit at statutory rate	$ 100,926			$ 119,931
State income taxes, net of federal impact	14,825			18,874
Changes in the valuation allowance	86			(902)
Changes in the state rates used to measure deferred taxes, net of federal benefit				(1,006)
Tax expense (benefit) relating to uncertain tax positions	178			574
New York tax reform				16,334
Non-deductible officers' compensation	462			846
Non-deductible merger transaction costs	9,392
Other non-deductible expenses	1,337			3,099
Research credit	(850)			(2,630)
Adjustment to prior year tax expense				(515)
Other, net	(1,508)			267
Income tax benefit	$ 124,848			$ 154,872

CVC - INCOME TAXES - Deferred t

CVC - INCOME TAXES - Deferred taxes (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income tax
Deferred income tax charge		$ (2,871,144)	$ (263,989)
Deferred Tax Asset (Liability), Current [Abstract]
Compensation and benefit plans		48,280	93,939
Other liabilities		38,140	45,561
Prepaid expenses		(8,007)	(10,172)
Deferred Tax Asset (Liability), Noncurrent [Abstract]
Other		7,182	6,615
Fixed assets and intangibles		(5,733,319)	(9,065,635)
Total net deferred tax liability		(4,775,115)	(7,966,815)
Excess tax benefit on share-based awards		$ 0	$ 31
Cablevision Systems Corporation And Subsidiaries
Income tax
Deferred income tax charge	$ 116,150			$ 133,396
Deferred Tax Asset (Liability), Current [Abstract]
NOLs and tax credit carry forwards				76,007
Compensation and benefit plans				80,831
Allowance for doubtful accounts				2,196
Merger-related costs				7,332
Inventory valuation adjustment				7,135
Other liabilities				26,216
Deferred tax asset				199,717
Valuation allowance				(2,098)
Net deferred tax asset, current				197,619
Investments				(163,396)
Prepaid expenses				(19,627)
Deferred tax liability, current				(183,023)
Net deferred tax asset, current				14,596
Deferred Tax Asset (Liability), Noncurrent [Abstract]
NOLs and tax credit carry forwards				36,866
Compensation and benefit plans				97,005
Partnership investments				123,529
Investments				9,798
Other				9,201
Deferred tax asset				276,399
Valuation allowance				(2,816)
Net deferred tax asset, noncurrent				273,583
Fixed assets and intangibles				(978,418)
Deferred tax liability, noncurrent				(978,418)
Net deferred tax liability, noncurrent				(704,835)
Total net deferred tax liability				(690,239)
Excess tax benefit on share-based awards	$ 82			$ 5,694

CVC - INCOME TAXES - Uncertain

CVC - INCOME TAXES - Uncertain tax positions (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2015
reconciliation of the beginning and ending amount of unrecognized tax benefits associated with uncertain tax positions
Beginning balance		$ 4,025
Increases related to prior year tax positions		11
Ending balance		4,036
Uncertain tax positions
Interest expense relating to uncertain tax position		$ 659
Cablevision Systems Corporation And Subsidiaries
reconciliation of the beginning and ending amount of unrecognized tax benefits associated with uncertain tax positions
Beginning balance	$ 4,022
Increases related to prior year tax positions	3
Increases related to current year tax positions	6
Ending balance	4,031		$ 4,022
Uncertain tax positions
Interest expense relating to uncertain tax position	$ 209		$ 314

CVC - BENEFIT PLANS - Defined B

CVC - BENEFIT PLANS - Defined Benefit Plans (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Dec. 31, 2016	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Change in projected benefit obligation:
Benefit obligation, beginning of year		$ 403,963	$ 382,517	$ 403,963
Interest cost	$ 6,946		11,786	14,077
Actuarial (gain) loss			13,171	(11,429)
Benefits paid			(121,650)	(28,062)
Benefit obligation, end of year	382,517		299,066	382,517	$ 403,963
Change in plan assets:
Fair value of plan assets, beginning of year		297,846	284,118	297,846
Actual return on plan assets, net			6,356	5,829
Employer contributions			26,944	8,505
Benefits paid			(121,650)	(28,062)
Fair value of plan assets, end of year	284,118		195,768	284,118	297,846
Unfunded status at end of year	(98,399)		(103,298)	(98,399)
Accumulated benefit obligation	382,517		299,066	382,517
Net funded status relating to defined benefit plans [Abstract]
Defined Benefit Plans	(98,399)		(103,298)	(98,399)
Less: Current portion related to nonqualified plans	14,293		135	14,293
Long-term defined benefit plan obligations	(84,106)		(103,163)	(84,106)
Components of net periodic benefit cost [Abstract]
Interest cost	6,946		11,786	14,077
Expected return on plan assets, net	(4,022)		(4,907)
Curtailment loss	231		3,137
Settlement loss (reclassified from accumulated other comprehensive loss)	(154)		1,845
Net periodic benefit cost	$ 3,001		$ 11,861
Cablevision Systems Corporation And Subsidiaries
Net funded status relating to defined benefit plans [Abstract]
Long-term defined benefit plan obligations					(99,228)
Cablevision Systems Corporation And Subsidiaries | Cablevision Defined Benefit Plans
Change in projected benefit obligation:
Benefit obligation, beginning of year		403,963		403,963	430,846
Service cost					344
Interest cost		7,130			15,523
Actuarial (gain) loss					(14,912)
Benefits paid					(27,838)
Benefit obligation, end of year					403,963
Change in plan assets:
Fair value of plan assets, beginning of year		297,846		$ 297,846	303,676
Actual return on plan assets, net					(3,921)
Employer contributions					25,929
Benefits paid					(27,838)
Fair value of plan assets, end of year					297,846
Unfunded status at end of year					(106,117)
Accumulated benefit obligation					403,963
Net funded status relating to defined benefit plans [Abstract]
Defined Benefit Plans					(106,117)
Long-term defined benefit plan obligations					(99,228)
Components of net periodic benefit cost [Abstract]
Service cost					344
Interest cost		7,130			15,523
Expected return on plan assets, net		(3,565)			(8,297)
Curtailment loss		(1,446)			1,294
Settlement loss (reclassified from accumulated other comprehensive loss)		1,655			3,822
Net periodic benefit cost		$ 3,774			12,686
Cablevision Systems Corporation And Subsidiaries | Excess Cash Balance Plan and CSC Supplemental Benefit Plan [Member]
Net funded status relating to defined benefit plans [Abstract]
Less: Current portion related to nonqualified plans					$ 6,889

CVC - BENEFIT PLANS - Plan Assu

CVC - BENEFIT PLANS - Plan Assumptions for Defined Benefit Plans (Details)	6 Months Ended		12 Months Ended
	Dec. 31, 2016	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2015
Net Periodic Benefit Cost
Discount rate (in hundredths)	3.53%		3.69%
Rate of increase in future compensation levels	0.00%		0.00%
Expected rate of return on plan assets (Pension Plan only)	3.97%		3.90%
Weighted-average assumptions used to determine benefit obligations [Abstract]
Discount rate (in hundredths)	3.81%		3.50%
Cablevision Systems Corporation And Subsidiaries | Cablevision Defined Benefit Plans
Net Periodic Benefit Cost
Discount rate (in hundredths)		3.76%		3.83%
Weighted-average assumptions used to determine benefit obligations [Abstract]
Discount rate (in hundredths)				3.94%
Cablevision Systems Corporation And Subsidiaries | Pension Plan
Net Periodic Benefit Cost
Expected rate of return on plan assets (Pension Plan only)		3.97%		4.03%

CVC - BENEFIT PLANS - Asset All

CVC - BENEFIT PLANS - Asset Allocation and Fair Values of Pension Plan Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocation (in hundredths)	100.00%	100.00%
Fair value of plan assets	$ 195,768	$ 284,118	$ 297,846
Fixed income securities
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocation (in hundredths)	66.00%	55.00%
Foreign issued corporate debt
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	$ 10,721	$ 13,583
Foreign issued corporate debt | Level I
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	0	0
Foreign issued corporate debt | Level II
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	10,721	13,583
U.S. corporate debt
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	39,992	48,046
U.S. corporate debt | Level I
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	0	0
U.S. corporate debt | Level II
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	39,992	48,046
Government debt
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	4,645	4,810
Government debt | Level I
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	0	0
Government debt | Level II
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	4,645	4,810
U.S. Treasury securities
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	62,601	77,285
U.S. Treasury securities | Level I
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	0	0
U.S. Treasury securities | Level II
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	62,601	77,285
Asset-backed securities
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	10,978	14,065
Asset-backed securities | Level I
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	0	0
Asset-backed securities | Level II
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets	$ 10,978	$ 14,065
Cablevision Systems Corporation And Subsidiaries | Pension Plan
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocation (in hundredths)			100.00%
Fair value of plan assets			$ 302,147
Cablevision Systems Corporation And Subsidiaries | Pension Plan | Level I
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			118,067
Cablevision Systems Corporation And Subsidiaries | Pension Plan | Level II
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			$ 184,080
Cablevision Systems Corporation And Subsidiaries | Pension Plan | Mutual funds
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocation (in hundredths)			39.00%
Fair value of plan assets			$ 117,174
Cablevision Systems Corporation And Subsidiaries | Pension Plan | Mutual funds | Level I
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			$ 117,174
Cablevision Systems Corporation And Subsidiaries | Pension Plan | Fixed income securities
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocation (in hundredths)			61.00%
Cablevision Systems Corporation And Subsidiaries | Pension Plan | Foreign issued corporate debt
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			$ 12,825
Cablevision Systems Corporation And Subsidiaries | Pension Plan | Foreign issued corporate debt | Level II
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			12,825
Cablevision Systems Corporation And Subsidiaries | Pension Plan | U.S. corporate debt
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			54,005
Cablevision Systems Corporation And Subsidiaries | Pension Plan | U.S. corporate debt | Level II
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			54,005
Cablevision Systems Corporation And Subsidiaries | Pension Plan | Government debt
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			8,273
Cablevision Systems Corporation And Subsidiaries | Pension Plan | Government debt | Level II
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			8,273
Cablevision Systems Corporation And Subsidiaries | Pension Plan | U.S. Treasury securities
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			90,414
Cablevision Systems Corporation And Subsidiaries | Pension Plan | U.S. Treasury securities | Level II
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			90,414
Cablevision Systems Corporation And Subsidiaries | Pension Plan | Asset-backed securities
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			18,563
Cablevision Systems Corporation And Subsidiaries | Pension Plan | Asset-backed securities | Level II
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			18,563
Cablevision Systems Corporation And Subsidiaries | Pension Plan | Cash Equivalents
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			893
Cablevision Systems Corporation And Subsidiaries | Pension Plan | Cash Equivalents | Level I
Defined Benefit Plan, Information about Plan Assets [Abstract]
Fair value of plan assets			$ 893

CVC - BENEFIT PLANS - Benefit P

CVC - BENEFIT PLANS - Benefit Payments and Defined Contribution Benefit Plans (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Contribution Plan [Abstract]
Cost associated with defined contribution benefit plans		$ 27,577	$ 28,501
Cablevision Systems Corporation And Subsidiaries
Defined Contribution Plan [Abstract]
Cost associated with defined contribution benefit plans	$ 26,964			$ 61,343

CVC - EQUITY AND LONG-TERM I189

CVC - EQUITY AND LONG-TERM INCENTIVE PLANS, Cablevision's Equity Plans (Details) - USD ($) $ / shares in Units, $ in Thousands	Jun. 21, 2016	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Sep. 16, 2015
Cablevision's Equity Plans [Abstract]
Share-based compensation			$ 55,258	$ 9,849
Share-based compensation related to equity classified awards			$ 57,430	$ 14,368
Stock Options
Cablevision's Equity Plans [Abstract]
Share-based compensation		$ 3,848			$ 9,159
Cablevision Systems Corporation And Subsidiaries
Cablevision's Equity Plans [Abstract]
Consideration transfered	$ 9,958,323
Share-based compensation		25,231			65,286
Share-based compensation related to equity classified awards		24,778			60,321
Income tax benefit recognized in continuing operations resulting from share-based compensation expense		10,357			26,718
Proceeds from stock option exercises		14,411			$ 18,727
Cablevision Systems Corporation And Subsidiaries | Stock Options
Cablevision's Equity Plans [Abstract]
Awards authorized (in shares)					11,880,700
Cablevision Systems Corporation And Subsidiaries | Restricted Stock
Cablevision's Equity Plans [Abstract]
Awards authorized (in shares)					3,769,485
Granted (in shares)					1,747,870
Number of restricted stock units granted to non-employee directors (in shares)					466,283
Share-based compensation		20,930			$ 51,162
Cablevision Systems Corporation And Subsidiaries | Stock Appreciation Rights
Cablevision's Equity Plans [Abstract]
Share-based compensation		$ 453			$ 4,965
Cablevision Systems Corporation And Subsidiaries | Performance Based Restricted Stock
Cablevision's Equity Plans [Abstract]
Granted (in shares)					584,400
Cablevision Systems Corporation And Subsidiaries | Cablevision Systems Corporation 2015 Employee Stock Plan | CNYG Class A Common Stock
Cablevision's Equity Plans [Abstract]
Granted (in shares)					79,780
Cablevision Systems Corporation And Subsidiaries | Cablevision Systems Corporation Stock Plan for Non-Employee Directors | Restricted Stock
Cablevision's Equity Plans [Abstract]
Number of restricted stock units granted to non-employee directors (in shares)					73,056
Non-option equity instruments, outstanding (shares)					466,283
Employee | Cablevision Systems Corporation And Subsidiaries | Restricted Stock
Cablevision's Equity Plans [Abstract]
Granted (in shares)					1,724,940
Cablevision Systems Corp.
Cablevision's Equity Plans [Abstract]
Business acquisition, share price (dollars per share)						$ 34.90
Consideration transfered	$ 9,958,323
Cablevision Systems Corp. | Cablevision Systems Corporation And Subsidiaries
Cablevision's Equity Plans [Abstract]
Business acquisition, share price (dollars per share)					$ 34.90
Consideration transfered					$ 439,167
Cablevision Systems Corp. | Cablevision Systems Corporation And Subsidiaries | Cablevision Systems Corporation Employee Stock Plan
Cablevision's Equity Plans [Abstract]
Share-based compensation related to equity classified awards					63,484
Cablevision Systems Corp. | Employee | Cablevision Systems Corporation And Subsidiaries
Cablevision's Equity Plans [Abstract]
Employers payroll taxes					$ 7,929

CVC - EQUITY AND LONG-TERM I190

CVC - EQUITY AND LONG-TERM INCENTIVE PLANS, Valuation Assumptions (Details) - $ / shares	Dec. 30, 2017	Dec. 31, 2015
Assumptions Used to Calculate the Fair Value of Stock Option Awards Granted [Abstract]
Risk-free rate (in percentage)	2.30%
Expected life (in years)	6 years 5 months 9 days
Dividend yield (in hundredths)	0.00%
Grant date fair value	$ 8.77
Cablevision Systems Corporation And Subsidiaries | Stock Options
Assumptions Used to Calculate the Fair Value of Stock Option Awards Granted [Abstract]
Risk-free rate (in percentage)		1.82%
Expected life (in years)		8 years
Dividend yield (in hundredths)		3.63%
Volatility (in hundredths)		39.98%
Grant date fair value		$ 5.45

CVC - EQUITY AND LONG-TERM I191

CVC - EQUITY AND LONG-TERM INCENTIVE PLANS, Stock Option Award Activity (Details) - Cablevision Systems Corporation And Subsidiaries - USD ($)	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2015	Dec. 31, 2014
Stock Options Outstanding, Weighted Average Exercise Price [Roll Forward]
Balance at beginning of period, weighted average exercise price per share (in dollars per share)	$ 15.28	$ 14.41
Granted, weighted average exercise price per share (in dollars per share)		19.17
Exercised, weighted average exercise price per share (in dollars per share)		12.84
Balance at end of period, weighted average exercise price per share (in dollars per share)		$ 15.28	$ 14.41
Options exercisable at end of period, weighted average exercise price per share (in dollars per share)	13.97
Options expected to vest in the future, weighted average exercise price per share (in dollars per share)	$ 15.45
Stock Options Outstanding, Additional Disclosures [Abstract]
Weighted average remaining contractual term (in years)		6 years 9 months 18 days	7 years 2 months 1 day
Balance at beginning of period, aggregate intrinsic value	$ 221,900	$ 79,347
Balance at end of period, aggregate intrinsic value		$ 221,900	$ 79,347
Time Vesting Options
Stock Options Outstanding [Roll Forward]
Balance at beginning of period (in shares)	6,744,000	5,097,666
Granted (in shares)		2,000,000
Exercised (in shares)	(744,000)	(353,666)
Balance at end of period (in shares)	6,000,000	6,744,000	5,097,666
Performance Based Vesting Options
Stock Options Outstanding [Roll Forward]
Balance at beginning of period (in shares)	6,609,217	7,633,500
Exercised (in shares)	(728,517)	(1,024,283)
Balance at end of period (in shares)	5,880,700	6,609,217	7,633,500

CVC - EQUITY AND LONG-TERM I192

CVC - EQUITY AND LONG-TERM INCENTIVE PLANS, Restricted Stock Award Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 31, 2016	Jun. 20, 2016	Dec. 31, 2015
Performance Shares
Restricted Shares, Additional Disclosures [Abstract]
Share-based compensation arrangement by share-based payment award, purchase price of common stock (percent)			150.00%
Cablevision Systems Corporation And Subsidiaries
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Balance at beginning of period, weighted average grant date fair value (in dollars per share)	$ 17.53	$ 17.53	$ 15.46
Granted weighted average grant date fair value (in dollars per share)			19.43
Vested weighted average grant date fair value (in dollars per share)		15.35	14.48
Awards forfeited, weighted average fair value per share at date of grant (in dollars per share)		$ 18.38	17.28
Balance at end of period, weighted average grant date fair value (in dollars per share)			$ 17.53
Cablevision Systems Corporation And Subsidiaries | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	4,967,748	4,967,748	5,314,870
Granted (in shares)			1,747,870
Vested (in shares)		(2,239,167)	(1,598,363)
Forfeited (in shares)		(85,900)	(496,629)
Ending balance (in shares)		2,642,681	4,967,748
Cablevision Systems Corporation And Subsidiaries | Performance Based Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	1,880,100	1,880,100	2,035,300
Granted (in shares)			584,400
Vested (in shares)		(753,296)	(739,600)
Ending balance (in shares)		1,126,804	1,880,100
Cablevision Systems Corporation And Subsidiaries | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	1,772,430	1,772,430
Granted (in shares)			1,851,700
Forfeited (in shares)		(47,490)	(79,270)
Ending balance (in shares)		1,724,940	1,772,430
Cablevision Systems Corporation And Subsidiaries | Cablevision Systems Corporation Employee Stock Plan
Restricted Shares, Additional Disclosures [Abstract]
Share-based compensation arrangement by share-based payment award, purchase price of common stock (percent)			2337963.00%
Number of restricted shares surrendered by employees (in shares)	1,248,875		1,004,950
Aggregate value of restricted shares surrendered by employees	$ 41,469		$ 19,141
Cablevision Systems Corporation And Subsidiaries | Cablevision Systems Corporation Employee Stock Plan | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Vested (in shares)	(2,992,463)		(2,337,963)

CVC - EQUITY AND LONG-TERM I193

CVC - EQUITY AND LONG-TERM INCENTIVE PLANS, Long-term Incentive Plans (Details) - USD ($) $ in Thousands	Jun. 21, 2016	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2015	Dec. 31, 2016
Carry Unit Awards
Long-Term Incentive Plans [Abstract]
Awards authorized (in shares)			259,442,785		259,442,785
Carry Unit Awards | Affiliates
Long-Term Incentive Plans [Abstract]
Granted (in shares)			11,300,000
Carry Unit Awards | Tranche One
Long-Term Incentive Plans [Abstract]
Award vesting percentage	50.00%
Carry Unit Awards | Tranche Two
Long-Term Incentive Plans [Abstract]
Award vesting percentage	25.00%		25.00%
Carry Unit Awards | Tranche Three
Long-Term Incentive Plans [Abstract]
Award vesting percentage	25.00%		25.00%
Employee | Carry Unit Awards
Long-Term Incentive Plans [Abstract]
Granted (in shares)			211,670,834
Cablevision Systems Corporation Cash Incentive Plan | Employee | Carry Unit Awards
Long-Term Incentive Plans [Abstract]
Granted (in shares)	102,500,000
Cablevision Systems Corporation Cash Incentive Plan | Employee | Carry Unit Awards | Affiliates
Long-Term Incentive Plans [Abstract]
Granted (in shares)	100,300,000
Cablevision Systems Corporation And Subsidiaries
Long-Term Incentive Plans [Abstract]
Award vesting percentage		100.00%
Cablevision Systems Corporation And Subsidiaries | Cablevision Systems Corporation Cash Incentive Plan
Long-Term Incentive Plans [Abstract]
Long-term incentive awards compensation expense		$ 9,169		$ 27,170

CVC - AFFILIATE AND RELATED 194

CVC - AFFILIATE AND RELATED PARTY TRANSACTIONS - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Jul. 31, 2016	Jul. 06, 2016	Dec. 31, 2015	Sep. 30, 2015
Related Party Transaction [Line Items]
Document Period End Date	Dec. 31, 2017
Investment in affiliates and related parties	$ 930	$ 5,606
I24News and Altice NV 24/7
Related Party Transaction [Line Items]
Ownership percentage	25.00%
Newsday
Related Party Transaction [Line Items]
Ownership percentage of noncontrolling interest				75.00%
Ownership percentage	25.00%
Cablevision Systems Corporation And Subsidiaries
Related Party Transaction [Line Items]
Investment in affiliates and related parties					$ 0
Cablevision Systems Corporation And Subsidiaries | I24News and Altice NV 24/7
Related Party Transaction [Line Items]
Ownership percentage		25.00%
Investment in affiliates and related parties		$ 1,966
Cablevision Systems Corporation And Subsidiaries | Newsday
Related Party Transaction [Line Items]
Ownership percentage of noncontrolling interest			75.00%	75.00%
Ownership percentage			25.00%	25.00%
Investment in affiliates and related parties						$ 8,300
Cablevision Systems Corporation And Subsidiaries | Other Related Party
Related Party Transaction [Line Items]
Ownership percentage		75.00%

CVC - AFFILIATE AND RELATED 195

CVC - AFFILIATE AND RELATED PARTY TRANSACTIONS - Revenue and Related Charges (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Related Party Transaction [Line Items]
Revenue		$ 2,205	$ 1,086
Operating expenses:
Programming and other direct costs, net of credits		4,176	1,947
Other operating expenses from affiliates		106,084	18,854
Operating expenses, net		110,260	20,801
Net charges		$ 712,183	$ 132,427
Cablevision Systems Corporation And Subsidiaries
Related Party Transaction [Line Items]
Revenue	$ 2,088			$ 5,343
Operating expenses:
Programming and other direct costs, net of credits	84,636			176,909
Other operating expenses from affiliates	2,182			5,372
Operating expenses, net	86,818			182,281
Net charges	$ 84,730			$ 176,938

CVC - AFFILIATE AND RELATED 196

CVC - AFFILIATE AND RELATED PARTY TRANSACTIONS - Amounts Due From and Due to Related Parties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Related Party Transaction [Line Items]
Document Period End Date	Dec. 31, 2017
Affiliates
Related Party Transaction [Line Items]
Amounts due from affiliates	$ 21,356	$ 22,182
Amounts due to affiliates	$ 13,946	$ 127,363
Cablevision Systems Corporation And Subsidiaries | Affiliates
Related Party Transaction [Line Items]
Amounts due from affiliates			$ 767
Amounts due to affiliates			$ 29,729

CVC - COMMITMENTS AND CONTIN197

CVC - COMMITMENTS AND CONTINGENCIES - Legal Matters (Details) - Cablevision Systems Corporation And Subsidiaries $ in Thousands	Sep. 12, 2016USD ($)	Feb. 08, 2016USD ($)	Jun. 20, 2016item	Dec. 31, 2015USD ($)
Marchese, et al. v. Cablevision Systems Corporation and CSC Holdings, LLC
Legal Matters
Number of versions of complaint dismissed without prejudice by the District Court | item			3
Litigation settlement amount	$ 15,600
Compensation Related Claims | Discontinued Operations, Disposed of by Sale
Legal Matters
Litigation settlement amount		$ 21,000
Legal expenses				$ 21,000

CVC - INTERIM FINANCIAL INFO198

CVC - INTERIM FINANCIAL INFORMATION (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended													6 Months Ended	12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Jun. 20, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Jun. 20, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Selected Quarterly Financial Information
Revenues, net	$ 2,365,378	$ 2,327,175	$ 2,328,341	$ 2,305,676	$ 2,305,901	$ 2,260,221	$ 823,501		$ 627,589						$ 9,326,570	$ 6,017,212
Operating income	225,504	134,864	256,782	248,234	217,224	142,779	45,403		54,260						865,384	459,666
Net income (loss)	2,254,682	(182,086)	(474,790)	(76,188)	(236,049)	(172,553)	(282,129)		(140,748)						1,521,618	(831,479)
Net loss (income) attributable to noncontrolling interests	(850)	(135)	(365)	(237)	(659)	(256)	364		0						(1,587)	(551)
Net income (loss) attributable to Altice USA, Inc. stockholders	$ 2,253,832	$ (182,221)	$ (475,155)	$ (76,425)	$ (236,708)	$ (172,809)	$ (281,765)		(140,748)						$ 1,520,031	$ (832,030)
Basic income per share attributable to Cablevision Systems Corporation stockholders:
Net income (in dollars per share)															$ 2.18	$ (1.28)
Diluted income per share attributable to Cablevision Systems Corporation stockholders:
Net income (in dollars per share)															$ 2.18	$ (1.28)
Cablevision Systems Corporation And Subsidiaries
Selected Quarterly Financial Information
Revenues, net								$ 1,491,714	1,645,890					$ 3,137,604			$ 6,545,545
Operating expenses								(1,267,663)	(1,394,635)
Operating income								224,051	251,255					475,306			848,471
Income from continuing operations, net of income taxes														163,512			187,789
Income (loss) from discontinued operations, net of income taxes														0			(12,541)
Net income (loss)								69,201	94,311					163,512			175,248
Net loss (income) attributable to noncontrolling interests								170	66					236			201
Net income (loss) attributable to Altice USA, Inc. stockholders								$ 69,371	$ 94,377					$ 163,748			$ 175,449
Basic income per share attributable to Cablevision Systems Corporation stockholders:
Income from continuing operations, net of income taxes								$ 0.25	$ 0.35					$ 0.60			$ 0.70
Loss from discontinued operations, net of income taxes														0			(0.05)
Net income (in dollars per share)								0.25	0.35					0.60			0.65
Diluted income per share attributable to Cablevision Systems Corporation stockholders:
Income from continuing operations, net of income taxes								0.25	0.34					0.58			0.68
Loss from discontinued operations, net of income taxes														0			(0.05)
Net income (in dollars per share)								$ 0.25	$ 0.34					$ 0.58			$ 0.63
Amounts attributable to Cablevision Systems Corporation stockholder(s):
Income from continuing operations, net of income taxes								$ 69,371	$ 94,377
Loss from discontinued operations, net of income taxes														$ 0			$ (12,541)
Net income								$ 69,371	$ 94,377
Predecessor
Selected Quarterly Financial Information
Revenues, net										$ 1,636,425	$ 1,624,828	$ 1,661,940	$ 1,622,352				6,545,545
Operating expenses										(1,439,285)	(1,441,712)	(1,417,476)	(1,398,601)				(5,697,074)
Operating income										197,140	183,116	244,464	223,751				848,471
Income from continuing operations, net of income taxes										33,781	23,431	75,676	54,901				187,789
Income (loss) from discontinued operations, net of income taxes										(1,633)	(406)		(10,502)				(12,541)
Net income (loss)										32,148	23,025	75,676	44,399				175,248
Net loss (income) attributable to noncontrolling interests										(30)	78	(81)	234				201
Net income (loss) attributable to Altice USA, Inc. stockholders										$ 32,118	$ 23,103	$ 75,595	$ 44,633				$ 175,449
Basic income per share attributable to Cablevision Systems Corporation stockholders:
Income from continuing operations, net of income taxes										$ 0.12	$ 0.09	$ 0.28	$ 0.21				$ 0.70
Loss from discontinued operations, net of income taxes										(0.01)			(0.04)				(0.05)
Net income (in dollars per share)										0.12	0.09	0.28	0.17				0.65
Diluted income per share attributable to Cablevision Systems Corporation stockholders:
Income from continuing operations, net of income taxes										0.12	0.08	0.27	0.20				0.68
Loss from discontinued operations, net of income taxes										(0.01)			(0.04)				(0.05)
Net income (in dollars per share)										$ 0.12	$ 0.08	$ 0.27	$ 0.16				$ 0.63
Amounts attributable to Cablevision Systems Corporation stockholder(s):
Income from continuing operations, net of income taxes										$ 33,751	$ 23,509	$ 75,595	$ 55,135				$ 187,990
Loss from discontinued operations, net of income taxes										(1,633)	(406)		(10,502)				(12,541)
Net income										$ 32,118	$ 23,103	$ 75,595	$ 44,633				$ 175,449

CVC - BUSINESS COMBINATION - Na

CVC - BUSINESS COMBINATION - Narrative (Details) - USD ($) $ in Thousands	Jun. 21, 2016	Dec. 31, 2015
Cablevision Systems Corp.
Business Acquisition [Line Items]
Consideration transfered	$ 9,958,323
Cablevision Systems Corporation And Subsidiaries
Business Acquisition [Line Items]
Consideration transfered	$ 9,958,323
Cablevision Systems Corporation And Subsidiaries | Cablevision Systems Corp.
Business Acquisition [Line Items]
Consideration transfered		$ 439,167

CVC - BUSINESS COMBINATION - As

CVC - BUSINESS COMBINATION - Assets and Liabilities Acquired (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jun. 20, 2016
Business Acquisition [Line Items]
Goodwill	$ 7,996,760	$ 7,992,700	$ 2,040,402
Estimated amortization expense
Year Ending December 31, 2017	873,133
Amortization expense, 2018	777,846
Amortization expense, 2019	696,240
Amortization expense, 2020	616,718
Year Ending December 31, 2021	$ 537,100
Minimum | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	8 years
Minimum | Trade names
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	2 years
Minimum | Amortizable intangible assets
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	1 year
Maximum | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	18 years
Maximum | Trade names
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	5 years
Maximum | Amortizable intangible assets
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	15 years
Cablevision Systems Corporation And Subsidiaries
Business Acquisition [Line Items]
Current assets		1,923,071
Accounts receivable		271,305
Property, plant and equipment		4,864,621
Goodwill		5,838,959	262,345	$ 262,345
Indefinite-lived cable television franchises		8,113,575
Other non-current assets		748,998
Current liabilities		(2,305,954)
Long-term debt		(8,355,386)
Deferred income taxes.		(6,834,807)
Other non-current liabilities		(189,355)
Total		9,958,323
Estimated amortization expense
Year Ending December 31, 2017			701,908
Amortization expense, 2018			655,409
Amortization expense, 2019			609,245
Amortization expense, 2020			562,613
Year Ending December 31, 2021			$ 515,430
Cablevision Systems Corporation And Subsidiaries | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible assets		4,850,000
Cablevision Systems Corporation And Subsidiaries | Trade names
Business Acquisition [Line Items]
Finite-lived intangible assets		$ 1,010,000
Finite-lived intangible asset, useful life		12 years
Cablevision Systems Corporation And Subsidiaries | Amortizable intangible assets
Business Acquisition [Line Items]
Finite-lived intangible assets		$ 23,296
Cablevision Systems Corporation And Subsidiaries | Minimum
Business Acquisition [Line Items]
Property, plant and equipment, useful life		2 years
Cablevision Systems Corporation And Subsidiaries | Minimum | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		8 years	10 years
Cablevision Systems Corporation And Subsidiaries | Minimum | Amortizable intangible assets
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		1 year	3 years
Cablevision Systems Corporation And Subsidiaries | Maximum
Business Acquisition [Line Items]
Property, plant and equipment, useful life		18 years
Cablevision Systems Corporation And Subsidiaries | Maximum | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		18 years	18 years
Cablevision Systems Corporation And Subsidiaries | Maximum | Amortizable intangible assets
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		15 years	28 years

CVC - BUSINESS COMBINATION - Pr

CVC - BUSINESS COMBINATION - Pro Forma Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2016
Business Acquisition [Line Items]
Revenue		$ 9,154,816
Net loss		$ (721,257)
Cablevision Systems Corporation And Subsidiaries
Business Acquisition [Line Items]
Revenue	$ 6,545,545
Loss from continuing operations	(740,115)
Net loss	$ (752,656)