Altice USA (ATUS) 10-Q 31 Jul 20 2020 FY Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Jul. 24, 2020
Document and Entity Information [Abstract]
Title of 12(b) Security	Class A Common Stock, par value $0.01 per share
Entity Interactive Data Current	Yes
Entity File Number	001-38126
Document Transition Report	false
Document Type	10-Q
Entity Central Index Key	0001702780
Entity Registrant Name	Altice USA, Inc.
Document Fiscal Year Focus	2020
Entity Filer Category	Large Accelerated Filer
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Document Period End Date	Jun. 30, 2020
Entity Common Stock, Shares Outstanding		578,097,380
Entity Current Reporting Status	Yes
Entity Small Business	false
Current Fiscal Year End Date	--12-31
Entity Tax Identification Number	38-3980194
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	1 Court Square West
Entity Address, City or Town	Long Island City,
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	11101
City Area Code	(516)
Local Phone Number	803-2300
Trading Symbol	ATUS
Security Exchange Name	NYSE
Document Quarterly Report	true

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current Assets:
Cash and cash equivalents	$ 1,952,142	$ 701,898
Restricted cash	264	262
Accounts receivable, trade (less allowance for doubtful accounts of $32,441 and $14,683)	387,739	457,118
Prepaid expenses and other current assets	209,916	215,304
Amounts due from affiliates	3,452	6,774
Total current assets	2,553,513	1,381,356
Property, plant and equipment, net of accumulated depreciation of $5,880,504 and $5,276,921	5,723,109	5,753,401
Operating Lease, Right-of-Use Asset	270,592	280,340
Investment securities pledged as collateral	1,674,395	1,931,697
Derivative contracts	225,791	25,207
Other assets	106,840	92,622
Amortizable intangibles, net of accumulated amortization of $4,054,809 and $3,670,679	3,097,216	3,481,109
Indefinite-lived cable television franchises	13,020,081	13,020,081
Goodwill	8,142,309	8,142,309
Total assets	34,813,846	34,108,122
Current Liabilities:
Accounts payable	832,011	799,618
Amounts due to affiliates	5,722	7,456
Deferred revenue	117,925	124,777
Accrued employee related costs	109,334	111,337
Interest payable	381,482	385,655
Long-term Debt, Current Maturities	1,859,290	170,682
Other Accrued Liabilities, Current	387,212	378,954
Total current liabilities	3,692,976	1,978,479
Other liabilities	215,781	204,904
Deferred tax liability	4,833,305	4,762,595
Liabilities under derivative contracts	312,916	255,666
Long-term Debt, Right-Of-Use Financing Obligations, Excluding Current Maturities	259,297	269,062
Long-term Debt, Excluding Current Maturities	24,326,397	24,249,603
Total liabilities	33,640,672	31,720,309
Commitments and contingencies (Note 16)
Redeemable equity	15,495	108,551
Stockholders' Equity:
Preferred stock, $0.01 par value, 100,000,000 shares authorized, no shares issued and outstanding	0	0
Paid-in capital	817,796	2,039,918
Retained earnings	501,172	390,766
Total stockholders' equity before accumulated other comprehensive Income and non-controlling interest	1,324,835	2,437,118
Treasury Stock, Value	163,869	163,904
Accumulated other comprehensive loss	(12,118)	(3,250)
Total stockholders' equity	1,148,848	2,269,964
Noncontrolling interest	8,831	9,298
Total stockholders' equity	1,157,679	2,279,262
Total liabilities and equity	34,813,846	34,108,122
Common Class A
Stockholders' Equity:
Common stock	4,005	4,572
Common Class B
Stockholders' Equity:
Common stock	1,862	1,862
Common Class C
Stockholders' Equity:
Common stock	0	0
CSC Holdings
Current Assets:
Cash and cash equivalents	1,952,128	697,741
Restricted cash	264	262
Accounts receivable, trade (less allowance for doubtful accounts of $32,441 and $14,683)	387,739	457,118
Prepaid expenses and other current assets	209,916	211,642
Amounts due from affiliates	3,322	6,774
Total current assets	2,553,369	1,373,537
Property, plant and equipment, net of accumulated depreciation of $5,880,504 and $5,276,921	5,723,109	5,753,401
Operating Lease, Right-of-Use Asset	270,592	280,340
Investment securities pledged as collateral	1,674,395	1,931,697
Derivative contracts	225,791	25,207
Other assets	106,840	92,622
Amortizable intangibles, net of accumulated amortization of $4,054,809 and $3,670,679	3,097,216	3,481,109
Indefinite-lived cable television franchises	13,020,081	13,020,081
Goodwill	8,142,309	8,142,309
Total assets	34,813,702	34,100,303
Current Liabilities:
Accounts payable	832,011	799,618
Amounts due to affiliates	5,722	7,456
Deferred revenue	117,925	124,777
Accrued employee related costs	109,334	111,337
Interest payable	381,482	385,655
Long-term Debt, Current Maturities	1,859,290	170,682
Other Accrued Liabilities, Current	387,212	378,948
Total current liabilities	3,692,976	1,978,473
Other liabilities	215,779	204,904
Deferred tax liability	5,156,281	4,980,599
Liabilities under derivative contracts	312,916	255,666
Long-term Debt, Right-Of-Use Financing Obligations, Excluding Current Maturities	259,297	269,062
Long-term Debt, Excluding Current Maturities	24,326,397	24,249,603
Total liabilities	33,963,646	31,938,307
Redeemable equity	15,495	108,551
Stockholders' Equity:
Retained earnings	7,480	13,515
Accumulated other comprehensive loss	(12,118)	(3,250)
Noncontrolling interest	8,831	9,298
Total liabilities and equity	$ 34,813,702	$ 34,100,303

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Assets [Abstract]
Property, plant and equipment, accumulated depreciation	$ 5,880,504	$ 5,276,921
Amortizable intangible assets, accumulated amortization	4,054,809	3,670,679
Accounts receivable, trade allowance for doubtful accounts	$ 32,441	$ 14,683
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
Treasury Stock, Shares, Acquired	6,935,257	10,457,772
Common stock, shares outstanding (in shares)	579,790,385
Common Class A
Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	4,000,000,000	4,000,000,000
Common stock, shares issued (in shares)	400,531,285	457,207,079
Common stock, shares outstanding (in shares)	393,596,028	446,749,307
Common Class B
Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	490,086,674	490,086,674
Common stock, shares outstanding (in shares)	186,194,357	186,245,832
Common Class C
Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	4,000,000,000	4,000,000,000
Common stock, shares issued (in shares)	0	0
Common stock, shares outstanding (in shares)	0	0

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Revenue (including revenue from affiliates of $3,379, $496, $6,867, and $1,088 respectively) (See Note 15)	$ 2,474,979	$ 2,451,081	$ 4,925,235	$ 4,847,648
Operating expenses:
Cost of Goods and Services Sold	860,875	818,994	1,725,389	1,631,979
Other operating expenses (including charges from affiliates of $2,161, $2,020, $6,102 and $4,266, respectively) (See Note 15)	542,637	569,459	1,124,946	1,133,891
Restructuring and other expense	40,966	11,465	48,260	26,709
Depreciation and amortization (including impairments)	521,794	568,620	1,069,363	1,130,048
Total operating expenses	1,966,272	1,968,538	3,967,958	3,922,627
Operating income	508,707	482,543	957,277	925,021
Other income (expense):
Interest expense	(351,025)	(381,218)	(716,236)	(769,501)
Interest income	151	605	1,810	2,424
Gain (loss) on investments and sale of affiliate interests, net	197,597	103,146	(257,876)	357,871
Gain (loss) on derivative contracts, net	(152,061)	(49,624)	287,800	(226,653)
Loss on interest rate swap contracts, net	(33,735)	(26,900)	(88,567)	(50,572)
Loss on extinguishment of debt and write-off of deferred financing costs	0	(1,194)	0	(159,096)
Other income, net	669	212	1,592	292
Total other income (expense)	(338,404)	(354,973)	(771,477)	(845,235)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	170,303	127,570	185,800	79,786
Income Tax Expense (Benefit)	(58,826)	(41,160)	(75,861)	(18,574)
Net income	111,477	86,410	109,939	61,212
Net loss (income) attributable to noncontrolling interests	(213)	(43)	467	156
Net income attributable to Altice USA, Inc. stockholders	$ 111,264	$ 86,367	$ 110,406	$ 61,368
Income per share:
Earnings Per Share, Basic	$ 0.19	$ 0.13	$ 0.18	$ 0.09
Basic weighted average common shares (in thousands)	587,587	668,031	604,500	681,703
Earnings Per Share, Diluted	$ 0.19	$ 0.13	$ 0.18	$ 0.09
Weighted Average Number of Shares Outstanding, Diluted	589,466	668,648	606,597	682,014

CONSOLIDATED STATEMENTS OF OP_2

CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Revenue from affiliates	$ 3,379	$ 496	$ 6,867	$ 1,088
Programming and other direct costs from affiliates	1,738	2,087	3,927	3,774
Other operating expenses from affiliates	$ 2,161	$ 2,020	$ 6,102	$ 4,266

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 111,477		$ 86,410		$ 109,939	$ 61,212
Defined benefit pension plans:
Unrecognized actuarial gain (loss)			(8,567)			(3,648)
Applicable income taxes			2,282			989
Unrecognized gain (loss) arising during period, net of income taxes	1,377		(6,285)		(8,493)	(2,659)
Settlement loss included in other expense, net			367			538
Applicable income taxes			(101)			(147)
Settlement loss included in other expense, net, net of income taxes	199		266		566	391
Foreign currency translation adjustment			(336)			(580)
Applicable income taxes			93			157
Foreign currency translation adjustment, net	(517)	$ (424)	(243)	$ (181)	(941)	(423)
Other comprehensive income (loss)	1,059		(6,262)		(8,868)	(2,691)
Comprehensive income	112,536		80,148		101,071	58,521
Comprehensive loss (income) attributable to noncontrolling interests			(43)			156
Comprehensive income attributable to Altice USA, Inc. stockholders	$ 112,323		$ 80,105		$ 101,538	$ 58,677

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Parent [Member]	Retained Earnings [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interests	Additional Paid-in Capital [Member]	Common Class ACommon Stock	Common Class BCommon Stock
Beginning balance at Dec. 31, 2018	$ 3,680,236	$ 3,670,941	$ 251,830	$ 0	$ (11,783)	$ 9,295	$ 3,423,803	$ 4,961	$ 2,130
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Altice USA, Inc. stockholders	(24,999)	(24,999)	(24,999)
Net loss (income) attributable to noncontrolling interests	199					199
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Plan Amendments, Net Of Tax	(3,752)	(3,752)			(3,752)
Foreign currency translation adjustment, net of income taxes	(181)	(181)			(181)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	13,790	13,790					13,790
Redeemable equity vested	1,364	1,364					1,364
Adjustments to Additional Paid in Capital, Increase in Carrying Amount of Redeemable Preferred Stock	(61,696)	(61,696)					(61,696)
Class A shares acquired through share repurchase program and retired	(600,001)	(600,001)					(599,707)	(294)
Conversion of Class B to Class A shares								242	(242)
Ending balance at Mar. 31, 2019	3,011,066	3,002,970	226,831	0	(8,212)	8,096	2,777,554	4,909	1,888
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	1,000					1,000
Beginning balance at Dec. 31, 2018	3,680,236	3,670,941	251,830	0	(11,783)	9,295	3,423,803	4,961	2,130
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Altice USA, Inc. stockholders	61,368
Net loss (income) attributable to noncontrolling interests	156
Foreign currency translation adjustment, net of income taxes	(423)
Ending balance at Jun. 30, 2019	2,533,764	2,525,625	313,198	0	(14,474)	8,139	2,220,348	4,681	1,872
Beginning balance at Mar. 31, 2019	3,011,066	3,002,970	226,831	0	(8,212)	8,096	2,777,554	4,909	1,888
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Altice USA, Inc. stockholders	86,367	86,367	86,367
Net loss (income) attributable to noncontrolling interests	(43)					(43)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Plan Amendments, Net Of Tax	6,019	6,019			6,019
Foreign currency translation adjustment, net of income taxes	(243)	(243)			(243)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	16,077	16,077					16,077
Redeemable equity vested	61,702	61,702					61,702
Adjustments to Additional Paid in Capital, Increase in Carrying Amount of Redeemable Preferred Stock	(46,294)	(46,294)					(46,294)
Class A shares acquired through share repurchase program and retired	(599,952)	(599,952)					(599,703)	(249)
Conversion of Class B to Class A shares								16	(16)
Stock Issued During Period, Value, New Issues	244						244	0
Ending balance at Jun. 30, 2019	2,533,764	2,525,625	313,198	0	(14,474)	8,139	2,220,348	4,681	1,872
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Value, Acquisitions	10,773						10,768	5
Beginning balance at Dec. 31, 2019	2,279,262	2,269,964	390,766	(163,904)	(3,250)	9,298	2,039,918	4,572	1,862
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Altice USA, Inc. stockholders	(858)	(858)	(858)
Net loss (income) attributable to noncontrolling interests	680					680
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Plan Amendments, Net Of Tax	9,503	9,503			9,503
Foreign currency translation adjustment, net of income taxes	(424)	(424)			(424)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	27,370	27,370					27,370
Redeemable equity vested	29,479	29,479					29,479
Adjustments to Additional Paid in Capital, Increase in Carrying Amount of Redeemable Preferred Stock	13,260	13,260					13,260
Class A shares acquired through share repurchase program and retired	(749,998)	(749,998)					(749,686)	(312)
Stock Issued During Period, Value, New Issues							2,495	1
Ending balance at Mar. 31, 2020	1,590,415	1,581,797	389,908	(163,893)	(13,177)	8,618	1,362,836	4,261	1,862
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Value, Treasury Stock Reissued	(2,507)	(2,507)		11
Beginning balance at Dec. 31, 2019	2,279,262	2,269,964	390,766	(163,904)	(3,250)	9,298	2,039,918	4,572	1,862
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Altice USA, Inc. stockholders	110,406
Net loss (income) attributable to noncontrolling interests	467
Foreign currency translation adjustment, net of income taxes	(941)
Class A shares acquired through share repurchase program and retired	(1,381,235)
Ending balance at Jun. 30, 2020	1,157,679	1,148,848	501,172	(163,869)	(12,118)	8,831	817,796	4,005	1,862
Beginning balance at Mar. 31, 2020	1,590,415	1,581,797	389,908	(163,893)	(13,177)	8,618	1,362,836	4,261	1,862
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Altice USA, Inc. stockholders	111,264
Net loss (income) attributable to noncontrolling interests	(213)
Foreign currency translation adjustment, net of income taxes	(517)
Ending balance at Jun. 30, 2020	$ 1,157,679	$ 1,148,848	$ 501,172	$ (163,869)	$ (12,118)	$ 8,831	$ 817,796	$ 4,005	$ 1,862

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income	$ 109,939	$ 61,212
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, Depletion and Amortization	1,069,363	1,130,048
Loss (gain) on investments and sale of affiliate interests, net	257,876	(357,871)
Gain (Loss) on Price Risk Derivative Instruments Not Designated as Hedging Instruments	(287,800)	226,653
Loss on extinguishment of debt and write-off of deferred financing costs	0	159,096
Amortization of deferred financing costs and discounts (premiums) on indebtedness	48,217	53,876
Settlement loss related to pension plan	773	538
Share-based compensation expense related to equity classified awards	61,053	29,867
Deferred income taxes	51,105	19,604
Provision for doubtful accounts	41,857	34,814
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	27,522	1,804
Other receivables	0	2,740
Prepaid expenses and other assets	(5,577)	(72,638)
Amounts due from and due to affiliates	1,588	(3,282)
Accounts payable	10,256	18,549
Accrued liabilities	(12,796)	(98,551)
Deferred revenue	(17,302)	12,022
Liabilities related to interest rate swap contracts	148,013	41,322
Net cash provided by operating activities	1,529,541	1,292,964
Cash flows from investing activities:
Capital expenditures	(527,805)	(657,253)
Payment for acquisitions, net of cash acquired	0	(172,659)
Proceeds related to sale of equipment and costs of disposal	(1,846)	898
Decrease in other investments	4,008	0
Additions to other intangible assets	(237)	(867)
Net cash used in investing activities	(525,880)	(829,881)
Cash flows from financing activities:
Proceeds from credit facility debt, net of discounts	200,000	1,940,000
Repayment of credit facility debt	(228,875)	(602,830)
Issuance of senior notes, including premiums	1,725,000	1,754,375
Redemption of senior notes, including premiums and fees	0	(2,462,692)
Proceeds from notes payable	0	39,856
Repayment of notes payable	(48,239)	(74,061)
Principal payments on finance lease obligations	(11,935)	(3,273)
Purchase of shares of Altice USA Class A common stock pursuant to a share repurchase program	(1,381,235)	(1,199,953)
Additions to deferred financing costs	(5,894)	(12,488)
Proceeds from stock option exercises	3,650	0
Contingent payment for acquisition	(4,947)	(500)
Distributions to noncontrolling interests, net	0	1,000
Net cash provided by (used in) financing activities	247,525	(622,566)
Net increase (decrease) in cash and cash equivalents excluding effect of exchange rate changes	1,251,186	(159,483)
Effect of exchange rate changes on cash and cash equivalents	(940)	(580)
Net increase (decrease) in cash and cash equivalents	1,250,246	(160,063)
Cash, cash equivalents and restricted cash at beginning of year	702,160	299,038
Cash, cash equivalents and restricted cash at end of period	1,952,406	138,975
Restructuring Reserve, Settled without Cash	2,383	10,014
Non-cash lease expense	$ 23,071	$ 23,147

CSC HOLDINGS - CONSOLIDATED BAL

CSC HOLDINGS - CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 1,952,142				$ 1,952,142		$ 701,898
Restricted cash	264				264		262
Accounts receivable, trade (less allowance for doubtful accounts of $13,420 and $11,677)	387,739				387,739		457,118
Prepaid expenses and other current assets (including a prepayment to an affiliate of $19,563 in 2017) (See Note 14)	209,916				209,916		215,304
Amounts due from affiliates	3,452				3,452		6,774
Operating Lease, Right-of-Use Asset	270,592				270,592		280,340
Total current assets	2,553,513				2,553,513		1,381,356
Property, plant and equipment, net	5,723,109				5,723,109		5,753,401
Investment securities pledged as collateral	1,674,395				1,674,395		1,931,697
Derivative contracts	225,791				225,791		25,207
Other assets	106,840				106,840		92,622
Amortizable intangible assets, net of accumulated amortization	3,097,216				3,097,216		3,481,109
Indefinite-lived cable television franchises	13,020,081				13,020,081		13,020,081
Goodwill	8,142,309				8,142,309		8,142,309
Total assets	34,813,846				34,813,846		34,108,122
Current Liabilities:
Accounts payable	832,011				832,011		799,618
Amounts due to affiliates	5,722				5,722		7,456
Accrued liabilities:
Interest payable	381,482				381,482		385,655
Accrued employee related costs	109,334				109,334		111,337
Other Accrued Liabilities, Current	387,212				387,212		378,954
Contract with Customer, Liability, Current	117,925				117,925		124,777
Long-term Debt, Current Maturities	1,859,290				1,859,290		170,682
Total current liabilities	3,692,976				3,692,976		1,978,479
Other liabilities	215,781				215,781		204,904
Deferred tax liability	4,833,305				4,833,305		4,762,595
Liabilities under derivative contracts	312,916				312,916		255,666
Long-term Debt, Right-Of-Use Financing Obligations, Excluding Current Maturities	259,297				259,297		269,062
Long-term Debt, Excluding Current Maturities	24,326,397				24,326,397		24,249,603
Total liabilities	33,640,672				33,640,672		31,720,309
Commitments and contingencies
Redeemable equity	15,495				15,495		108,551
Limited Liability Company (LLC) Members' Equity [Abstract]
Retained earnings (accumulated deficit)	501,172				501,172		390,766
Accumulated other comprehensive income (loss)	(12,118)				(12,118)		(3,250)
Noncontrolling interest	8,831				8,831		9,298
Total liabilities and equity	34,813,846				34,813,846		34,108,122
Net Income (Loss) Attributable to Noncontrolling Interest	213	$ (680)	$ 43	$ (199)	(467)	$ (156)
Customer Relationships [Member]
Current Assets:
Amortizable intangible assets, net of accumulated amortization	2,843,070				2,843,070		3,173,963
Other Intangible Assets [Member]
Current Assets:
Amortizable intangible assets, net of accumulated amortization	19,992				19,992		24,547
CSC Holdings
Current Assets:
Cash and cash equivalents	1,952,128				1,952,128		697,741
Restricted cash	264				264		262
Accounts receivable, trade (less allowance for doubtful accounts of $13,420 and $11,677)	387,739				387,739		457,118
Prepaid expenses and other current assets (including a prepayment to an affiliate of $19,563 in 2017) (See Note 14)	209,916				209,916		211,642
Amounts due from affiliates	3,322				3,322		6,774
Operating Lease, Right-of-Use Asset	270,592				270,592		280,340
Total current assets	2,553,369				2,553,369		1,373,537
Property, plant and equipment, net	5,723,109				5,723,109		5,753,401
Investment securities pledged as collateral	1,674,395				1,674,395		1,931,697
Derivative contracts	225,791				225,791		25,207
Other assets	106,840				106,840		92,622
Amortizable intangible assets, net of accumulated amortization	3,097,216				3,097,216		3,481,109
Indefinite-lived cable television franchises	13,020,081				13,020,081		13,020,081
Goodwill	8,142,309				8,142,309		8,142,309
Total assets	34,813,702				34,813,702		34,100,303
Current Liabilities:
Accounts payable	832,011				832,011		799,618
Amounts due to affiliates	5,722				5,722		7,456
Accrued liabilities:
Interest payable	381,482				381,482		385,655
Accrued employee related costs	109,334				109,334		111,337
Other Accrued Liabilities, Current	387,212				387,212		378,948
Contract with Customer, Liability, Current	117,925				117,925		124,777
Long-term Debt, Current Maturities	1,859,290				1,859,290		170,682
Total current liabilities	3,692,976				3,692,976		1,978,473
Other liabilities	215,779				215,779		204,904
Deferred tax liability	5,156,281				5,156,281		4,980,599
Liabilities under derivative contracts	312,916				312,916		255,666
Long-term Debt, Right-Of-Use Financing Obligations, Excluding Current Maturities	259,297				259,297		269,062
Long-term Debt, Excluding Current Maturities	24,326,397				24,326,397		24,249,603
Total liabilities	33,963,646				33,963,646		31,938,307
Redeemable equity	15,495				15,495		108,551
Limited Liability Company (LLC) Members' Equity [Abstract]
Members' Equity	830,368				830,368		2,033,882
Retained earnings (accumulated deficit)	7,480				7,480		13,515
Membership interest before accumulated comprehensive loss	837,848				837,848		2,047,397
Accumulated other comprehensive income (loss)	(12,118)				(12,118)		(3,250)
Membership equity before noncontrolling interest	825,730				825,730		2,044,147
Noncontrolling interest	8,831	8,618			8,831		9,298
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest	834,561	1,252,797	2,857,921	3,352,567	834,561	2,857,921	2,053,445	$ 3,999,140
Total liabilities and equity	34,813,702				34,813,702		$ 34,100,303
Net Income (Loss) Attributable to Noncontrolling Interest	$ 213	$ (680)	$ 43	$ (199)	$ (467)	$ (156)

CSC HOLDINGS - CONSOLIDATED B_2

CSC HOLDINGS - CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Accounts receivable, trade allowance for doubtful accounts	$ 32,441	$ 14,683
Property, plant and equipment, accumulated depreciation	5,880,504	5,276,921
Amortizable intangible assets, accumulated amortization	4,054,809	3,670,679
CSC Holdings
Accounts receivable, trade allowance for doubtful accounts	32,441	14,683
Property, plant and equipment, accumulated depreciation	5,880,504	5,276,921
Amortizable intangible assets, accumulated amortization	$ 4,054,809	$ 3,670,679
Members' Equity	100	100
Common Unit, Outstanding	100	100

CSC HOLDINGS - CONSOLIDATED STA

CSC HOLDINGS - CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue (including revenue from affiliates of $2,205 and $1,086, respectively) (See Note 14)	$ 2,474,979	$ 2,451,081	$ 4,925,235	$ 4,847,648
Operating expenses:
Cost of Goods and Services Sold	860,875	818,994	1,725,389	1,631,979
Other operating expenses	542,637	569,459	1,124,946	1,133,891
Restructuring and other expense	40,966	11,465	48,260	26,709
Depreciation and amortization (including impairments)	521,794	568,620	1,069,363	1,130,048
Total operating expenses	1,966,272	1,968,538	3,967,958	3,922,627
Operating income	508,707	482,543	957,277	925,021
Other income (expense):
Interest expense	(351,025)	(381,218)	(716,236)	(769,501)
Interest income	151	605	1,810	2,424
Loss on interest rate swap contracts, net	(33,735)	(26,900)	(88,567)	(50,572)
Gain (loss) on investments and sale of affiliate interests, net	197,597	103,146	(257,876)	357,871
Loss on equity derivative contracts, net	(152,061)	(49,624)	287,800	(226,653)
Loss on extinguishment of debt and write-off of deferred financing costs	0	(1,194)	0	(159,096)
Other income, net	669	212	1,592	292
Total other income (expense)	(338,404)	(354,973)	(771,477)	(845,235)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	170,303	127,570	185,800	79,786
Income Tax Expense (Benefit)	(58,826)	(41,160)	(75,861)	(18,574)
Net income	111,477	86,410	109,939	61,212
Net loss (income) attributable to noncontrolling interests	(213)	(43)	467	156
Net income (loss) attributable to members	111,264	86,367	110,406	61,368
Other operating expenses from affiliates	2,161	2,020	6,102	4,266
Programming and other direct costs from affiliates	1,738	2,087	3,927	3,774
Revenue	3,379	496	6,867	1,088
Retained Earnings [Member]
Other income (expense):
Net income (loss) attributable to members		86,367
CSC Holdings
Revenue (including revenue from affiliates of $2,205 and $1,086, respectively) (See Note 14)	2,474,979	2,451,081	4,925,235	4,847,648
Operating expenses:
Cost of Goods and Services Sold	860,875	818,994	1,725,389	1,631,979
Other operating expenses	542,637	569,459	1,124,946	1,133,891
Restructuring and other expense	40,966	11,465	48,260	26,709
Depreciation and amortization (including impairments)	521,794	568,620	1,069,363	1,130,048
Total operating expenses	1,966,272	1,968,538	3,967,958	3,922,627
Operating income	508,707	482,543	957,277	925,021
Other income (expense):
Interest expense	(351,025)	(356,818)	(716,236)	(720,857)
Interest income	151	605	1,810	2,424
Loss on interest rate swap contracts, net	(33,735)	(26,900)	(88,567)	(50,572)
Gain (loss) on investments and sale of affiliate interests, net	197,596	103,146	(258,223)	357,871
Loss on equity derivative contracts, net	(152,061)	(49,624)	287,800	(226,653)
Loss on extinguishment of debt and write-off of deferred financing costs	0	(1,194)	0	(159,096)
Other income, net	669	212	1,592	292
Total other income (expense)	(338,405)	(330,573)	(771,824)	(796,591)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	170,302	151,970	185,453	128,430
Income Tax Expense (Benefit)	(56,629)	(47,828)	(61,658)	(32,152)
Net income	113,673	104,142	123,795	96,278
Net loss (income) attributable to noncontrolling interests	(213)	(43)	467	156
Net income (loss) attributable to members	113,460	104,099	10,802	$ 96,434
CSC Holdings | Retained Earnings [Member]
Other income (expense):
Net income (loss) attributable to members	$ 113,460	$ 104,099	$ 124,262

CSC HOLDINGS - CONSOLIDATED S_2

CSC HOLDINGS - CONSOLIDATED STATEMENT OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Programming and other direct costs from affiliates	$ 1,738	$ 2,087	$ 3,927	$ 3,774
Related Party Transaction, Other Operating Expense	2,161	2,020	6,102	4,266
Revenue from affiliates	$ 3,379	$ 496	$ 6,867	$ 1,088

CSC HOLDINGS - CONDENSED CONSOL

CSC HOLDINGS - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net income	$ 111,477	$ 86,410	$ 109,939	$ 61,212
Defined benefit pension and postretirement plans:
Unrecognized actuarial gain		(8,567)		(3,648)
Applicable income taxes		2,282		989
Unrecognized gain (loss) arising during period, net of income taxes	1,377	(6,285)	(8,493)	(2,659)
Settlement loss included in other expense, net		367		538
Applicable income taxes		(101)		(147)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement Gain (Loss), After Tax	199	266	566	391
Foreign currency translation adjustment		(336)		(580)
Applicable income taxes		93		157
Foreign currency translation adjustment, net of income taxes	(517)	(243)	(941)	(423)
Other comprehensive income (loss)	1,059	(6,262)	(8,868)	(2,691)
Comprehensive income	112,536	80,148	101,071	58,521
Comprehensive loss (income) attributable to noncontrolling interests		(43)		156
Comprehensive income attributable to Altice USA, Inc. stockholders	112,323	80,105	101,538	58,677
CSC Holdings
Net income	113,673	104,142	123,795	96,278
Defined benefit pension and postretirement plans:
Unrecognized actuarial gain	1,880	(8,567)	(11,589)	(3,648)
Applicable income taxes	(503)	2,282	3,096	989
Unrecognized gain (loss) arising during period, net of income taxes	1,377	(6,285)	(8,493)	(2,659)
Settlement loss included in other expense, net	271	367	773	538
Applicable income taxes	(72)	(101)	(207)	(147)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement Gain (Loss), After Tax	199	266	566	391
Foreign currency translation adjustment	(517)	(336)	(941)	(580)
Applicable income taxes	0	93	0	157
Foreign currency translation adjustment, net of income taxes	(517)	(243)	(941)	(423)
Other comprehensive income (loss)	1,059	(6,262)	(8,868)	(2,691)
Comprehensive income	114,732	97,880	114,927	93,587
Comprehensive loss (income) attributable to noncontrolling interests	(213)	(43)	467	156
Comprehensive income attributable to Altice USA, Inc. stockholders	$ 114,519	$ 97,837	$ 115,394	$ 93,743

CSC HOLDINGS - CONSOLIDATED S_3

CSC HOLDINGS - CONSOLIDATED STATEMENT OF MEMBER'S EQUITY - USD ($) $ in Thousands	Total	CSC Holdings	Retained Earnings	Retained EarningsCSC Holdings	Other Member's Equity	Other Member's EquityCSC Holdings	Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive LossCSC Holdings	Total Member's Equity	Total Member's EquityCSC Holdings	Noncontrolling Interests	Noncontrolling InterestsCSC Holdings
Retained earnings				$ 549,691
Accumulated other comprehensive loss								$ (11,783)
Membership equity before noncontrolling interest										$ 3,989,845
Noncontrolling interest												$ 9,295
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest		$ 3,999,140
Members' Equity						$ 3,451,937
Net Income (Loss) Attributable to Noncontrolling Interest	$ (199)	(199)									$ (199)	(199)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Plan Amendments, Net Of Tax	(3,752)	(3,752)					$ (3,752)	(3,752)	$ (3,752)	(3,752)
Redeemable equity vested	1,364	1,364			$ 1,364	1,364			1,364	1,364
Adjustments to Additional Paid in Capital, Increase in Carrying Amount of Redeemable Preferred Stock	61,696	61,696			61,696	61,696			61,696	61,696
Net income (loss) attributable to members	(24,999)	(7,665)	$ (24,999)	(7,665)					(24,999)	(7,665)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	13,790	13,790			13,790	13,790			13,790	13,790
Foreign currency translation adjustment, net of income taxes	(181)	(181)					(181)	(181)	(181)	(181)
Distribution Made to Limited Liability Company (LLC) Member, Non-cash Distributions Paid		594,462		543,217		51,245				594,462
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	1,000	1,000									1,000	1,000
Stockholders' Equity, Other		(276)				(276)				(276)
Net Income (Loss) Attributable to Noncontrolling Interest	(156)	(156)
Net income (loss) attributable to members	61,368	96,434
Foreign currency translation adjustment, net of income taxes	(423)	(423)
Distribution Made to Limited Liability Company (LLC) Member, Non-cash Distributions Paid				(633,541)		(595,949)				(1,229,490)
Noncash contribution from parent	0
Retained earnings				(1,191)
Accumulated other comprehensive loss								(8,212)
Membership equity before noncontrolling interest										3,344,471
Noncontrolling interest												8,096
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest		3,352,567
Members' Equity						3,353,874
Net Income (Loss) Attributable to Noncontrolling Interest	43	43									43	43
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Plan Amendments, Net Of Tax	6,019	6,019					6,019	6,019	6,019	6,019
Redeemable equity vested	61,702	61,702			61,702	61,702			61,702	61,702
Adjustments to Additional Paid in Capital, Increase in Carrying Amount of Redeemable Preferred Stock	46,294	46,294			46,294	46,294			46,294	46,294
Net income (loss) attributable to members	86,367	104,099	86,367	104,099					86,367	104,099
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	16,077	16,077			16,077	16,077			16,077	16,077
Foreign currency translation adjustment, net of income taxes	(243)	(243)					(243)	(243)	(243)	(243)
Distribution Made to Limited Liability Company (LLC) Member, Non-cash Distributions Paid		635,028		90,324		544,704				635,028
Stock Issued During Period, Value, New Issues	244				244
Stockholders' Equity, Other		244				244				244
Consideration transfered		10,773				10,773				10,773
Retained earnings				12,584
Accumulated other comprehensive loss								(14,474)
Membership equity before noncontrolling interest										2,849,782
Noncontrolling interest												8,139
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest		2,857,921
Members' Equity						2,851,672
Retained earnings	390,766	13,515		13,515
Membership interest before accumulated comprehensive loss		2,047,397
Accumulated other comprehensive loss	(3,250)	(3,250)						(3,250)
Membership equity before noncontrolling interest		2,044,147								2,044,147
Noncontrolling interest	9,298	9,298
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest		2,053,445
Members' Equity		2,033,882				2,033,882
Net Income (Loss) Attributable to Noncontrolling Interest	(680)	(680)									$ (680)	(680)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Plan Amendments, Net Of Tax	9,503	(9,503)					9,503	(9,503)	9,503	(9,503)
Redeemable equity vested	29,479	29,479			29,479	29,479			29,479	29,479
Adjustments to Additional Paid in Capital, Increase in Carrying Amount of Redeemable Preferred Stock	(13,260)	(13,260)			(13,260)	(13,260)			(13,260)	(13,260)
Cash distributions to shareholders		720,350		24,317		696,033				720,350
Net income (loss) attributable to members	(858)		$ (858)	10,802					(858)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	27,370	27,370			27,370	27,370			27,370	27,370
Foreign currency translation adjustment, net of income taxes	(424)	(424)					$ (424)	(424)	$ (424)	(424)
Stock Issued During Period, Value, New Issues					$ 2,495
Intercompany settlement		(150,602)				(150,602)				(150,602)
Net Income (Loss) Attributable to Noncontrolling Interest	(467)	(467)
Cash distributions to shareholders										(1,372,733)
Net income (loss) attributable to members	110,406	10,802		124,262						10,802
Foreign currency translation adjustment, net of income taxes	(941)	(941)
Distribution Made to Limited Liability Company (LLC) Member, Non-cash Distributions Paid				(130,297)		(1,242,436)
Noncash contribution from parent	115,187
Intercompany settlement						(115,187)
Retained earnings				0
Accumulated other comprehensive loss								(13,177)
Membership equity before noncontrolling interest										1,244,179
Noncontrolling interest		8,618
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest		1,252,797
Members' Equity						1,257,356
Net Income (Loss) Attributable to Noncontrolling Interest	213	213										$ 213
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Plan Amendments, Net Of Tax		1,576						1,576		1,576
Redeemable equity vested		59,081				59,081				59,081
Adjustments to Additional Paid in Capital, Increase in Carrying Amount of Redeemable Preferred Stock		8,764				8,764				8,764
Cash distributions to shareholders		652,383								652,383
Net income (loss) attributable to members	111,264	113,460		113,460						113,460
APIC, Share-based Payment Arrangement, Increase for Cost Recognition		33,683				33,683				33,683
Foreign currency translation adjustment, net of income taxes	(517)	(517)						(517)		(517)
Distribution Made to Limited Liability Company (LLC) Member, Non-cash Distributions Paid				105,980		546,403
Intercompany settlement		35,415				35,415				35,415
Retained earnings	501,172	7,480		$ 7,480
Membership interest before accumulated comprehensive loss		837,848
Accumulated other comprehensive loss	(12,118)	(12,118)						$ (12,118)
Membership equity before noncontrolling interest		825,730								$ 825,730
Noncontrolling interest	$ 8,831	8,831
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest		834,561
Members' Equity		$ 830,368				$ 830,368

CSC HOLDINGS - CONSOLIDATED S_4

CSC HOLDINGS - CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income	$ 109,939	$ 61,212
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation, Depletion and Amortization	1,069,363	1,130,048
Gain (Loss) on Investments And Sale Of Affiliated Interests	257,876	(357,871)
Loss (gain) on equity derivative contracts, net	(287,800)	226,653
Loss on extinguishment of debt and write-off of deferred financing costs	0	159,096
Amortization of deferred financing costs and discounts (premiums) on indebtedness	48,217	53,876
Share-based compensation expense related to equity classified awards	61,053	29,867
Deferred income taxes	51,105	19,604
Provision for doubtful accounts	41,857	34,814
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	27,522	1,804
Other receivables	0	2,740
Prepaid expenses and other assets	(5,577)	(72,638)
Amounts due from and due to affiliates	1,588	(3,282)
Accounts payable	10,256	18,549
Accrued liabilities	(12,796)	(98,551)
Deferred revenue	(17,302)	12,022
Liabilities related to interest rate swap contracts	148,013	41,322
Net cash provided by operating activities	1,529,541	1,292,964
Cash flows from investing activities:
Capital expenditures	(527,805)	(657,253)
Payment for acquisitions, net of cash acquired	0	(172,659)
Proceeds related to sale of equipment and costs of disposal	(1,846)	898
Decrease in other investments	4,008	0
Additions to other intangible assets	(237)	(867)
Net cash used in investing activities	(525,880)	(829,881)
Cash flows from financing activities:
Proceeds from credit facility debt, net of discounts	200,000	1,940,000
Repayment of credit facility debt	(228,875)	(602,830)
Proceeds from issuance of senior notes	1,725,000	1,754,375
Redemption of senior notes, including premiums and fees	0	(2,462,692)
Proceeds from notes payable	0	39,856
Repayment of notes payable	(48,239)	(74,061)
Principal payments on finance lease obligations	(11,935)	(3,273)
Additions to deferred financing costs	(5,894)	(12,488)
Contingent payment for acquisition	(4,947)	(500)
Proceeds from (Payments to) Noncontrolling Interests	0	(1,000)
Net cash provided by (used in) financing activities	247,525	(622,566)
Net increase (decrease) in cash and cash equivalents excluding effect of exchange rate changes	1,251,186	(159,483)
Effect of exchange rate changes on cash and cash equivalents	(940)	(580)
Net increase (decrease) in cash and cash equivalents	1,250,246	(160,063)
Cash, cash equivalents and restricted cash at beginning of year	702,160	299,038
Cash, cash equivalents and restricted cash at end of period	1,952,406	138,975
Restructuring Reserve, Settled without Cash	2,383	10,014
Non-cash lease expense	23,071	23,147
CSC Holdings
Cash flows from operating activities:
Net income	123,795	96,278
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation, Depletion and Amortization	1,069,363	1,130,048
Gain (Loss) on Investments And Sale Of Affiliated Interests	258,223	(357,871)
Loss (gain) on equity derivative contracts, net	(287,800)	226,653
Loss on extinguishment of debt and write-off of deferred financing costs	0	159,096
Amortization of deferred financing costs and discounts (premiums) on indebtedness	48,217	44,751
Settlement loss and amortization of actuarial losses related to pension and postretirement plans	773	538
Share-based compensation expense related to equity classified awards	61,053	29,867
Deferred income taxes	156,077	33,183
Provision for doubtful accounts	41,857	34,814
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	27,522	1,804
Other receivables	0	2,740
Prepaid expenses and other assets	(9,239)	(72,638)
Amounts due from and due to affiliates	(114,290)	(13,668)
Accounts payable	10,256	18,349
Accrued liabilities	(12,794)	(98,673)
Deferred revenue	(17,302)	12,022
Liabilities related to interest rate swap contracts	148,013	41,322
Net cash provided by operating activities	1,529,178	1,321,776
Cash flows from investing activities:
Capital expenditures	(527,805)	(657,253)
Payment for acquisitions, net of cash acquired	0	(172,659)
Proceeds related to sale of equipment and costs of disposal	(1,846)	898
Decrease in other investments	3,662	0
Additions to other intangible assets	(237)	(867)
Net cash used in investing activities	(526,226)	(829,881)
Cash flows from financing activities:
Proceeds from credit facility debt, net of discounts	200,000	1,940,000
Repayment of credit facility debt	(228,875)	(602,830)
Proceeds from issuance of senior notes	1,725,000	1,754,375
Redemption of senior notes, including premiums and fees	0	(2,462,692)
Payments of dividends	1,372,733	1,229,489
Proceeds from notes payable	0	39,856
Repayment of notes payable	(48,239)	(74,061)
Principal payments on finance lease obligations	(11,935)	(3,273)
Additions to deferred financing costs	(5,894)	(12,488)
Contingent payment for acquisition	(4,947)	(500)
Proceeds from (Payments to) Noncontrolling Interests	0	(1,000)
Net cash provided by (used in) financing activities	252,377	(652,102)
Net increase (decrease) in cash and cash equivalents excluding effect of exchange rate changes	1,255,329	(160,207)
Effect of exchange rate changes on cash and cash equivalents	(940)	(580)
Net increase (decrease) in cash and cash equivalents	1,254,389	(160,787)
Cash, cash equivalents and restricted cash at beginning of year	698,003	298,784
Cash, cash equivalents and restricted cash at end of period	1,952,392	137,997
Restructuring Reserve, Settled without Cash	2,383	10,014
Non-cash lease expense	$ 23,071	$ 23,147

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	6 Months Ended
	Jun. 30, 2020
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: Six Months Ended June 30, 2020 2019 Non-Cash Investing and Financing Activities: Altice USA and CSC Holdings: Property and equipment accrued but unpaid $ 210,204 $ 245,692 Notes payable issued to vendor for the purchase of equipment and other assets 11,582 16,204 Right-of-use assets acquired in exchange for finance lease obligations 78,564 6,501 Deferred financing costs accrued but unpaid 1,644 853 CSC Holdings: Distributions to parent 115,187 — Altice USA: Cash interest paid 673,222 763,819 Income taxes paid, net 28,406 6,247 CSC Holdings: Cash interest paid 673,222 724,299 Income taxes paid, net 28,406 6,247

SUPPLEMENTAL CASH FLOW INFORM_2

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	6 Months Ended
	Jun. 30, 2020
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: Six Months Ended June 30, 2020 2019 Non-Cash Investing and Financing Activities: Altice USA and CSC Holdings: Property and equipment accrued but unpaid $ 210,204 $ 245,692 Notes payable issued to vendor for the purchase of equipment and other assets 11,582 16,204 Right-of-use assets acquired in exchange for finance lease obligations 78,564 6,501 Deferred financing costs accrued but unpaid 1,644 853 CSC Holdings: Distributions to parent 115,187 — Altice USA: Cash interest paid 673,222 763,819 Income taxes paid, net 28,406 6,247 CSC Holdings: Cash interest paid 673,222 724,299 Income taxes paid, net 28,406 6,247

SUPPLEMENTAL CASH FLOW INFORM_3

SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Non-Cash Investing and Financing Activities:
Property and equipment accrued but unpaid	$ 210,204	$ 245,692
Notes payable issued to vendor for the purchase of equipment and other assets	11,582	16,204
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	78,564	6,501
Deferred financing costs accrued but unpaid	1,644	853
Supplemental Data:
Interest Paid, Excluding Capitalized Interest, Operating Activities	673,222	763,819
Income taxes paid, net	28,406	6,247
Noncash contribution from parent	115,187	0
CSC Holdings
Supplemental Data:
Interest Paid, Excluding Capitalized Interest, Operating Activities	673,222	724,299
Income taxes paid, net	$ 28,406	$ 6,247

DESCRIPTION OF BUSINESS AND REL

DESCRIPTION OF BUSINESS AND RELATED MATTERS	6 Months Ended
	Jun. 30, 2020
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") was incorporated in Delaware on September 14, 2015. Through June 8, 2018, Altice USA was majority-owned by Altice Europe N.V. ("Altice Europe"), a public company with limited liability (naamloze vennootschap) under Dutch law. On June 8, 2018, Altice Europe distributed substantially all of its equity interest in the Company through a distribution in kind to holders of Altice Europe's common shares A and common shares B (the "Distribution"). Altice USA is now majority-owned by Patrick Drahi through Next Alt. S.a.r.l. ("Next Alt"). Altice USA is a holding company that does not conduct any business operations of its own. Altice Europe, 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 acquired Cablevision Systems Corporation ("Cablevision" or "Optimum") on June 21, 2016. Altice USA, through CSC Holdings, LLC (a wholly-owned subsidiary of Cablevision) and its consolidated subsidiaries ("CSC Holdings," and collectively with Altice USA, the "Company"), principally provides broadband communications and video services in the United States. It markets its residential services primarily under two brands: Optimum, in the New York metropolitan area, and Suddenlink, principally in markets in the south-central United States. It operates enterprise services under the brands Lightpath and Altice Business. It delivers broadband, video, telephony services, proprietary content and advertising services to residential and business customers. In September 2019, the Company launched Altice Mobile, a full service voice and data offering, to consumers across its footprint. As these brands are managed on a consolidated basis, the Company classifies its operations in one segment. The accompanying consolidated financial statements of Altice USA include the accounts of Altice USA and its majority-owned subsidiaries and the accompanying consolidated financial statements of CSC Holdings include the accounts of CSC Holdings and its majority-owned subsidiaries and gives effect to the ATS Acquisition and the i24 Acquisition discussed below. Altice USA has no business operations independent of its CSC Holdings subsidiary, whose operating results and financial position are consolidated into Altice USA. The consolidated balance sheets and statements of operations of Altice USA are essentially identical to the consolidated balance sheets and statements of operations of CSC Holdings, with the following exceptions: Altice USA has additional cash and deferred taxes on its consolidated balance sheet. In addition, CSC Holdings and its subsidiaries have certain intercompany receivables from and payables to Altice USA. Differences between Altice USA's results of operations and those of CSC Holdings primarily include incremental interest expense for periods prior to the assumption of Cablevision senior notes by CSC Holdings in November 2019, loss (gain) on investments and sale of affiliate interests, net, and income tax benefit (expense). The combined notes to the consolidated financial statements relate to the Company, which, except as noted, are essentially identical for Altice USA and CSC Holdings. All significant intercompany transactions and balances between Altice USA or CSC Holdings and their respective consolidated subsidiaries are eliminated in both sets of consolidated financial statements. Intercompany transactions between Altice USA and CSC Holdings are not eliminated in the CSC Holdings consolidated financial statements, but are eliminated in the Altice USA consolidated financial statements. The financial statements of CSC Holdings are included herein as supplemental information as CSC Holdings is not an SEC registrant. Stock Repurchase Plan In June 2018, the Board of Directors of Altice USA authorized a share repurchase program of $2,000,000, and on July 30, 2019, the Board of Directors authorized a new incremental three-year share repurchase program of $5,000,000 that took effect following the completion in August 2019 of the $2,000,000 repurchase program. Under these repurchase programs, shares of Altice USA Class A common stock may be purchased from time to time in the open market and may include trading plans entered into with one or more brokerage firms in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934. Size and timing of these purchases will be determined based on market conditions and other factors. For the six months ended June 30, 2020, Altice USA repurchased an aggregate of 56,956,374 shares for a total purchase price of approximately $1,381,235. From inception through June 30, 2020, Altice USA repurchased an aggregate of 157,653,766 shares for a total purchase price of approximately $3,568,109. These acquired shares were retired and the cost of these shares was recorded in paid in capital in Altice USA's consolidated balance sheet. As of June 30, 2020, Altice USA had approximately $3,431,891 of availability remaining under the incremental share repurchase program and had 579,790,385 combined Class A and Class B shares outstanding.

BASIS OF PRESENTATION

BASIS OF PRESENTATION	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies	BASIS OF PRESENTATION The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") and with the instructions to Form 10-Q and Article 10 of Regulation S-X for interim financial information. Accordingly, these financial statements do not include all the information and notes required for complete annual financial statements. The interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2019. The financial statements presented in this report are unaudited; however, in the opinion of management, such financial statements include all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of the results for the periods presented. The results of operations for the interim periods are not necessarily indicative of the results that might be expected for future interim periods or for the full year ending December 31, 2020. The preparation of financial statements in conformity with 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 revenue and expenses during the reporting period. Actual results could differ from those estimates. See Note 12 for a discussion of fair value estimates. Common Stock of Altice USA The following table provides details of Altice USA's shares of common stock outstanding: Shares of Common Stock Outstanding Class A Class B Balance at December 31, 2019 446,749,307 186,245,832 Conversion of Class B common stock to Class A common stock 51,475 (51,475) Shares issued in connection with stock option exercises 209,105 — Retirement of Class A common shares in connection with the Company's stock repurchase plan (see Note 1) (56,956,374) — Shares issued from treasury upon vesting of redeemable equity and restricted awards 3,542,515 — Balance at June 30, 2020 393,596,028 186,194,357 Reclassifications Certain reclassifications have been made to the 2019 financial statements to conform to the 2020 presentation.

ACCOUNTING PRONOUNCEMENTS

ACCOUNTING PRONOUNCEMENTS	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
ACCOUNTING PRONOUNCEMENTS	ACCOUNTING PRONOUNCEMENTS Recently Adopted Accounting Pronouncements ASU No. 2020-04, Facilitation of the Effects of Reference Rate Reform on Financial Reporting ("ASU 2020-04") In March 2020, the Financial Accounting Standards Board ("FASB") issued new accounting guidance related to the effects of reference rate reform on financial reporting. The guidance, effective for reporting periods through December 31, 2022, provides accounting relief for contract modifications that replace an interest rate impacted by reference rate reform (e.g., LIBOR) with a new alternative reference rate. The Company adopted the guidance as of March 31, 2020. The adoption of this guidance did not have an impact on the Company's consolidated financial statements. ASU No. 2019-12, Simplifying the Accounting for Income Taxes ("ASU 2019-12") In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740). ASU 2019-12 simplifies the accounting for income taxes by eliminating certain exceptions for investments, intraperiod allocations and interim calculations. The new guidance also simplifies aspects of the accounting for franchise taxes, enacted changes in tax laws or rates, and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. The amendments did not create new accounting requirements. The Company adopted the standard as of January 1, 2020. The adoption of this standard did not have a significant impact on the Company's consolidated financial statements. ASU No. 2018-15, Customer’s Accounting for Implementation Costs in a Cloud Computing Arrangement That Is a Service Contract ("ASU 2018-15") In August 2018, the FASB issued ASU 2018-15 which requires upfront implementation costs incurred in a cloud computing arrangement (or hosting arrangement) that is a service contract to be amortized to hosting expense over the term of the arrangement, beginning when the module or component of the hosting arrangement is ready for its intended use. The Company adopted the standard as of January 1, 2020. The adoption of this standard did not have a significant impact on the Company's consolidated financial statements. ASU No. 2017-04, Intangibles-Goodwill and Other (Topic 350) ("ASU 2017-04") In January 2017, the FASB issued ASU 2017-04 which 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. The Company adopted the standard as of January 1, 2020. The adoption of this standard did not have an impact on the Company's consolidated financial statements. ASU No. 2016-13, Measurement of Credit Losses on Financial Instruments ("ASU 2016-13") In June 2016, the FASB issued ASU 2016-13 which requires a financial asset (or a group of financial assets) measured at amortized cost to be assessed for impairment under the current expected credit loss model rather than an incurred loss model. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions and reasonable and supportable forecasts that affect the collectability of the reported amount. ASU 2016-13 became effective for the Company on January 1, 2020 and the adoption of this standard did not have a significant impact on the Company's consolidated financial statements. The Company will continue to actively monitor the impact of the recent coronavirus (COVID-19) pandemic on expected credit losses. Recently Issued But Not Yet Adopted Accounting Pronouncements ASU No. 2018-14, Changes to the Disclosure Requirements for Defined Benefit Plans ("ASU 2018-14")

Revenue Recognition and Deferre

Revenue Recognition and Deferred Revenue	6 Months Ended
	Jun. 30, 2020
Disaggregation of Revenue [Abstract]
Revenue from Contract with Customer	REVENUE The following table presents the composition of revenue: Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Residential: Broadband $ 920,363 $ 806,250 $ 1,805,892 $ 1,581,823 Video 952,526 1,018,426 1,899,587 2,035,756 Telephony 117,322 150,232 242,352 304,696 Business services and wholesale 365,564 357,806 730,094 708,495 News and advertising 96,631 114,450 202,171 209,188 Mobile 19,866 — 38,222 — Other 2,707 3,917 6,917 7,690 Total revenue $ 2,474,979 $ 2,451,081 $ 4,925,235 $ 4,847,648 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. In instances where the tax is being assessed directly on the Company, amounts paid to the governmental authorities are recorded as programming and other direct costs and amounts received from the customers are recorded as revenue. For the three and six months ended June 30, 2020 and 2019, the amount of franchise fees and certain other taxes and fees included as a component of revenue aggregated $65,280 and $130,190, and $63,920 and $128,156, respectively. The following table provides information about customer contract costs and deferred revenue related to contracts with customers: June 30, 2020 December 31, 2019 Customer contract costs (a) $ 21,724 $ 30,758 Deferred revenue (b) 164,732 182,034 (a) Customer contract costs include primarily sales commissions for business services enterprise customers that are deferred and amortized over the average contract term. (b) Deferred revenue represents payments received from customers for services that have yet to be provided and installation revenue which is deferred and recognized over the benefit period. A portion of the Company's deferred revenue represents payments for services for up to one month in advance from residential and small and medium sized business ("SMB") customers which is realized within the following month as services are performed and the remaining portion is recognized over the contract period. A significant portion of our revenue is derived from residential and SMB customer contracts which are month-to month. As such, the amount of revenue related to unsatisfied performance obligations is not necessarily indicative of the future revenue to be recognized from our existing customer base. Contracts with enterprise customers generally range from three years to five years, and services may only be terminated in accordance with the contractual terms.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Earnings Per Share	NET INCOME PER SHARE Basic net income per common share attributable to Altice USA stockholders is computed by dividing net income 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 and restricted stock. For such awards that are performance based, the diluted effect is 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 income per share attributable to Altice USA stockholders for the three and six months ended June 30, 2020 and 2019: Three Months Ended Six Months Ended Three Months Ended Six Months Ended (in thousands) Basic weighted average shares outstanding 587,587 604,500 668,031 681,703 Effect of dilution: Stock options 1,857 2,079 566 285 Restricted stock 22 18 51 26 Diluted weighted average shares outstanding 589,466 606,597 668,648 682,014 Weighted average shares excluded from diluted weighted average shares outstanding: Anti-dilutive shares 28,514 24,362 1,292 6,350 Performance stock units and restricted stock whose performance metrics have not been achieved. 8,943 7,758 — — Net income (loss) per membership unit for CSC Holdings is not presented since CSC Holdings is a limited liability company and a wholly-owned subsidiary of Altice USA.

RESTRUCTURING AND OTHER EXPENSE

RESTRUCTURING AND OTHER EXPENSE	6 Months Ended
	Jun. 30, 2020
Restructuring and Related Activities [Abstract]
RESTRUCTURING AND OTHER EXPENSE	RESTRUCTURING AND OTHER EXPENSE Restructuring Beginning in the first quarter of 2016, the Company commenced restructuring initiatives that were intended to simplify the Company's organizational structure ("2016 Restructuring Plan"). The following table summarizes the activity for the 2016 Restructuring Plan: Severance and Other Employee Related Costs Facility Realignment and Other Costs Total Accrual balance at December 31, 2019 $ 1,676 $ 2,332 $ 4,008 Restructuring charges — 2,059 2,059 Payments and other (1,639) (1,813) (3,452) Accrual balance at June 30, 2020 $ 37 $ 2,578 $ 2,615 Cumulative costs to date relating to 2016 Restructuring Plan amounted to $436,984. In May 2019, the Company commenced another restructuring initiative to further simplify the Company's organization structure ("2019 Restructuring Plan"). The following table summarizes the activity for the 2019 Restructuring Plan: Severance and Other Employee Related Costs Accrual balance at December 31, 2019 $ 37,946 Restructuring charges 3,180 Payments and other (18,186) Accrual balance at June 30, 2020 $ 22,940 Cumulative costs to date relating to the 2019 Restructuring Plan amounted to $45,895. Restructuring and other expense for the three and six months ended June 30, 2020 also includes $40,128 related to contractual payments for terminated employees. As of June 30, 2020, the outstanding amount due to terminated employees amounted to $29,735 and is reflected in accrued employee related costs in our consolidated balance sheet. In addition, the Company recorded restructuring charges of $611 and $2,316 for the three and six months ended June 30, 2020, and $147 and $8,696, for the three and six months ended June 30, 2019, respectively, related primarily to the impairment of right-of-use operating lease assets, included in the Company's restructuring initiatives, as their carrying amount was not recoverable and exceeded their fair value. Transaction Costs

LEASES

LEASES	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
OPERATING LEASES	LEASES The Company's operating leases are comprised primarily of facility leases and its finance leases are comprised primarily of vehicle and equipment leases. Balance sheet information related to the Company's leases is presented below: Balance Sheet location June 30, 2020 December 31, 2019 Operating leases: Right-of-use lease assets Right-of-use operating lease assets $ 270,592 $ 280,340 Right-of-use lease liability, current Other current liabilities 40,440 38,836 Right-of-use lease liability, long-term Right-of-use operating lease liability 259,297 269,062 Finance leases: Right-of-use lease assets Property, plant and equipment 137,370 70,339 Right-of-use lease liability, current Current portion of long-term debt 49,478 22,017 Right-of-use lease liability, long-term Long-term debt 86,571 47,403 The following provides details of the Company's lease expense: Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Operating lease expense, net $ 14,849 $ 14,948 $ 29,853 $ 30,226 Amortization of assets 6,960 1,630 11,420 3,192 Interest on lease liabilities 1,477 388 2,504 746 Total finance lease expense 8,437 $ 2,018 13,924 3,938 $ 23,286 $ 16,966 $ 43,777 $ 34,164 Other information related to leases is presented below: As of June 30, 2020 2019 Right-of-use assets acquired in exchange for operating lease obligations $ 15,430 $ 43,441 Cash Paid For Amounts Included In Measurement of Liabilities: Operating cash flows related to finance leases 2,504 746 Operating cash flows related to operating leases 32,126 32,481 Weighted Average Remaining Lease Term: Operating leases 9.3 years 9.6 years Finance leases 2.9 years 4.6 years Weighted Average Discount Rate: Operating leases 5.86 % 6.06 % Finance leases 5.66 % 5.86 % The minimum future annual payments under non-cancellable leases during the next five years and thereafter, at rates now in force, are as follows: Finance leases Operating leases 2020 (excluding the six months ended June 30, 2020) $ 30,527 $ 27,389 2021 50,543 43,615 2022 46,298 49,668 2023 15,501 39,694 2024 3,413 35,261 Thereafter 300 200,665 Total future minimum lease payments, undiscounted 146,582 396,292 Less: Imputed interest (10,533) (96,555) Present value of future minimum lease payments $ 136,049 $ 299,737

INTANGIBLE ASSETS

INTANGIBLE ASSETS	6 Months Ended
	Jun. 30, 2020
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 June 30, 2020 As of December 31, 2019 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Useful Lives Customer relationships $ 6,017,524 $ (3,174,454) $ 2,843,070 $ 6,017,524 $ (2,843,561) $ 3,173,963 8 to 18 years Trade names 1,081,083 (846,929) 234,154 1,081,083 (798,484) 282,599 2 to 5 years Other amortizable intangibles 53,418 (33,426) 19,992 53,181 (28,634) 24,547 1 to 15 years $ 7,152,025 $ (4,054,809) $ 3,097,216 $ 7,151,788 $ (3,670,679) $ 3,481,109 Amortization expense for the three and six months ended June 30, 2020 and 2019 aggregated $183,031 and $384,130 and $201,279 and $401,898, respectively.

DEBT

DEBT	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
DEBT	DEBT The following details the Company's outstanding debt: Interest Rate June 30, 2020 December 31, 2019 Date Issued Maturity Date Principal Amount Carrying Amount (a) Principal Amount Carrying Amount (a) Senior Notes: November 15, 2011 November 15, 2021 6.750 % $ 1,000,000 $ 984,412 $ 1,000,000 $ 979,178 September 27, 2012 September 15, 2022 5.875 % 649,024 608,861 649,024 600,849 May 23, 2014 June 1, 2024 5.250 % 750,000 690,331 750,000 683,940 October 18, 2018 July 15, 2025 7.750 % (e) 1,740 1,698 1,740 1,695 October 9, 2015 October 15, 2025 10.875 % 1,684,221 1,666,435 1,684,221 1,665,237 October 18, 2018 April 1, 2028 7.500 % 4,118 4,112 4,118 4,112 November 27, 2018 July 15, 2025 7.750 % (e) 617,881 606,479 617,881 605,583 November 27, 2018 April 1, 2028 7.500 % 1,045,882 1,044,349 1,045,882 1,044,278 July 10 and October 7, 2019 January 15, 2030 5.750 % 2,250,000 2,287,660 2,250,000 2,289,168 June 16, 2020 December 1, 2030 4.625 % 625,000 622,176 — — Senior Guaranteed Notes: October 9, 2015 October 15, 2025 6.625 % 1,000,000 990,233 1,000,000 989,483 September 23, 2016 April 15, 2027 5.500 % 1,310,000 1,305,688 1,310,000 1,305,430 January 29, 2018 February 1, 2028 5.375 % 1,000,000 993,116 1,000,000 992,757 November 27, 2018 July 15, 2023 5.375 % (e) 1,095,825 1,083,676 1,095,825 1,081,879 November 27, 2018 May 15, 2026 5.500 % 1,498,806 1,486,760 1,498,806 1,485,911 January 24, 2019 February 1, 2029 6.500 % 1,750,000 1,747,118 1,750,000 1,746,996 June 16, 2020 December 1, 2030 4.125 % 1,100,000 1,095,311 — — 17,382,497 17,218,415 15,657,497 15,476,496 CSC Holdings Restricted Group: Revolving Credit Facility (c) (c) (b) — — — — Term Loan B July 17, 2025 2.435 % 2,910,000 2,897,887 2,925,000 2,911,729 Incremental Term Loan B-3 January 15, 2026 2.435 % 1,259,063 1,254,243 1,265,438 1,260,200 Incremental Term Loan B-5 April 15, 2027 2.685 % 2,992,500 2,970,328 3,000,000 2,976,358 7,161,563 7,122,458 7,190,438 7,148,287 Collateralized indebtedness (see Note 11) 1,699,566 1,601,107 1,699,566 1,585,088 Finance lease obligations (see Note 8) 136,049 136,049 69,420 69,420 Notes payable and supply chain financing (d) 119,889 107,658 156,519 140,994 26,499,564 26,185,687 24,773,440 24,420,285 Less: current portion of credit facility debt (72,750) (72,750) (65,250) (65,250) Less: current portion of senior guaranteed notes (1,095,825) (1,083,676) — — Less: current portion of senior notes (619,621) (608,177) — — Less: current portion of finance lease obligations (49,478) (49,478) (22,017) (22,017) Less: current portion of notes payable and supply chain financing (45,209) (45,209) (83,415) (83,415) (1,882,883) (1,859,290) (170,682) (170,682) Long-term debt $ 24,616,681 $ 24,326,397 $ 24,602,758 $ 24,249,603 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums and with respect to certain notes, a fair value adjustment resulting from the Cequel and Cablevision acquisitions. (b) At June 30, 2020, $141,949 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $2,333,051 of the facility was undrawn and available, subject to covenant limitations. (c) The revolving credit facility of an aggregate principal amount of $2,275,000 matures in January 2024 and priced at LIBOR plus 2.25%. The remaining revolving credit facility of an aggregate principal amount of $200,000 matures in November 2021 and priced at LIBOR plus 3.25%. (d) Includes $37,581 related to supply chain financing agreements that is required to be repaid within one year from the date of the respective agreement. The principal amounts include $59,451 of notes payable that will be reclassified to collateralized indebtedness upon the maturity, in January 2021, of a monetization contract related to the synthetic monetization closeout transaction in November 2019. (e) These notes were repaid in July 2020 with proceeds from the issuance of new notes in June 2020. See discussion below. Accordingly, the carrying amount of these notes was reclassified to current debt in the accompanying balance sheets as of June 30, 2020. In June 2020, CSC Holdings issued $1,100,000 in aggregate principal amount of senior guaranteed notes that bear interest at a rate of 4.125% and mature on December 1, 2030 and $625,000 in aggregate principal amount of senior notes that bear interest at a rate of 4.625% and mature on December 1, 2030. The net proceeds from the sale of the these notes was used in July 2020 to early redeem the $1,095,825 aggregate principal amount of CSC Holdings' 5.375% senior notes due July 15, 2023, the $617,881 and the $1,740 aggregate principal amount of CSC Holdings' 7.750% senior notes due July 15, 2025, plus pay accrued interest and the associated premiums related to the early redemption of these notes. In connection with the early redemptions, the Company will recognize a loss on the extinguishment of debt aggregating $62,096, reflecting the early redemption premiums and the write-off of outstanding deferred financing costs on these notes. For financing purposes, the Company is structured as a restricted group (the "Restricted Group") and an unrestricted group, which includes certain designated subsidiaries and investments (the "Unrestricted Group"). The Restricted Group is comprised of CSC Holdings and substantially all of its wholly-owned operating subsidiaries. These subsidiaries are subject to the covenants and restrictions of the credit facility and indentures governing the notes issued by CSC Holdings. CSC Holdings' credit facilities agreement 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 credit facilities will be entitled to take various actions, including the acceleration of amounts due under the credit facilities and all actions permitted to be taken by a secured creditor. As of June 30, 2020, CSC Holdings was in compliance with all of its financial covenants under its credit facilities and with all of its financial covenants under the indentures under which the senior and senior guaranteed notes were issued. The following table provides a summary of the loss on extinguishment of debt and the write-off of deferred financing costs recorded by the Company upon the redemption of senior notes and the refinancing of credit facilities: Three months ended Six months ended June 30, 2019 CSC Holdings 10.125% Senior Notes due 2023 $ — $ 154,666 Refinancing and subsequent amendment to CSC Holdings credit facility 1,194 4,430 $ 1,194 $ 159,096 Summary of Debt Maturities The future maturities of debt payable by the Company under its various debt obligations outstanding as of June 30, 2020, including notes payable and collateralized indebtedness (see Note 11), but excluding finance lease obligations (see Note 8), are as follows: 2020 (excluding the six months ended June 30, 2020) (a) $ 1,782,180 2021 1,092,181 2022 728,667 2023 1,835,383 2024 822,889 Thereafter 20,102,215 _____________________ (a) Includes the CSC Holdings notes redeemed in July 2020 discussed above.

DERIVATIVE CONTRACTS AND COLLAT

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS	6 Months Ended
	Jun. 30, 2020
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 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 was 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 June 30, 2020, 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 June 30, 2020. Interest Rate Swap Contracts To manage interest rate risk, we have from time to time entered into interest rate swap contracts to adjust the proportion of total debt that is subject to variable and fixed interest rates. Such contracts effectively fix the borrowing rates on floating rate debt to provide an economic hedge against the risk of rising rates and/or effectively convert fixed rate borrowings to variable rates to permit the Company to realize lower interest expense in a declining interest rate environment. We monitor the financial institutions that are counterparties to our interest rate swap contracts and we only enter into interest rate swap contracts with financial institutions that are rated investment grade. All such contracts are carried at their fair market values on our consolidated balance sheet, with changes in fair value reflected in the consolidated statement of operations. As of June 30, 2020, the Company did not hold and has not issued 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: Derivatives Not Designated as Hedging Instruments Balance Sheet Location Fair Value at June 30, 2020 December 31, 2019 Asset Derivatives: Interest rate swap contracts Derivative contracts, long-term $ 4,058 $ — Prepaid forward contracts Derivative contracts, long-term 221,733 25,207 225,791 25,207 Liability Derivatives: Interest rate swap contracts Other current liabilities (4,016) (469) Prepaid forward contracts Liabilities under derivative contracts, long-term (3,520) (94,795) Interest rate swap contracts Liabilities under derivative contracts, long-term (309,396) (160,871) $ (316,932) $ (256,135) The following table presents certain statement of operations data related to our derivative contracts and the underlying common stock: Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Gain (loss) on derivative contracts related to change in the value of equity derivative contracts related to Comcast common stock $ (152,061) $ (49,624) $ 287,800 $ (226,653) Change in the fair value of Comcast common stock included in gain (loss) on investments 197,594 98,794 (257,302) 353,519 Loss on interest rate swap contracts, net of a gain of $74,835 recorded in the 2020 six month period in connection with the early termination of the swap agreements discussed below (33,735) (26,900) (88,567) (50,572) In March 2020, the Company terminated two swap agreements whereby the Company was paying a floating rate of interest and receiving a fixed rate of interest on an aggregate notional value of $1,500,000. These contracts were due to mature in May 2026. In connection with the early termination, the Company received cash of $74,835 which has been recorded in loss on interest swap contracts, net in our consolidated statement of operations and presented in operating activities in our consolidated statement of cash flows. In addition, in March 2020, the Company executed amendments to two interest swap contracts that reduced the fixed rate of interest that the Company was paying on an aggregate notional value of $1,000,000 and extended the maturity date of the contracts to January 15, 2025 from January 15, 2022. The difference in the fair value of the amended contracts and the original contracts on the date of the transaction of $5,689 (an increase in the liability) is being amortized to loss on derivative contracts over the remaining term of the contracts. During the six months ended June 30, 2020, the Company entered into three new interest rate swap contracts on an aggregate notional value of $3,850,000. See table below. The following is a summary of interest rate swap contracts outstanding at June 30, 2020: Trade Date Maturity Date Notional Amount Company Pays Company Receives December 2018 January 2025 $ 500,000 Fixed rate of 1.53% Three-month LIBOR December 2018 January 2022 500,000 Fixed rate of 2.733% Three-month LIBOR December 2018 January 2025 500,000 Fixed rate of 1.625% Three-month LIBOR December 2018 December 2026 750,000 Fixed rate of 2.9155% Three-month LIBOR December 2018 December 2026 750,000 Fixed rate of 2.9025% Three-month LIBOR March 2020 January 2025 500,000 Fixed rate of 1.458% Three-month LIBOR March 2020 January 2022 500,000 Three-month LIBOR Fixed rate of 2.733% April 2020 April 2021 2,850,000 Six-month LIBOR minus 0.5185% One-month LIBOR

FAIR VALUE MEASUREMENT

FAIR VALUE MEASUREMENT	6 Months Ended
	Jun. 30, 2020
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 June 30, 2020 December 31, 2019 Assets: Money market funds Level I $ 1,842,086 $ 563,704 Investment securities pledged as collateral Level I 1,674,395 1,931,697 Prepaid forward contracts Level II 221,733 25,207 Interest rate swap contracts Level II 4,058 — Liabilities: Prepaid forward contracts Level II 3,520 94,795 Interest rate swap contracts Level II 313,412 161,340 Contingent consideration related to 2017 and 2018 acquisitions Level III 1,767 7,250 The Company's cash equivalents (money market funds) 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 consolidated 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. 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, Senior Guaranteed Notes, Notes Payable and Supply Chain Financing 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 value of outstanding amounts related to supply chain financing agreements approximates the fair value due to the short-term nature of their maturity (less than one year). 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: June 30, 2020 December 31, 2019 Fair Value Carrying Estimated Carrying Estimated Credit facility debt Level II $ 7,122,458 $ 7,161,563 $ 7,148,287 $ 7,190,438 Collateralized indebtedness Level II 1,601,107 1,696,376 1,585,088 1,611,095 Senior guaranteed notes Level II 8,701,902 9,094,711 7,602,456 8,220,518 Senior notes Level II 8,516,513 9,037,404 7,874,040 8,728,870 Notes payable and supply chain financing Level II 107,658 108,619 140,994 141,713 $ 26,049,638 $ 27,098,673 $ 24,350,865 $ 25,892,634 (a) Amounts are net of unamortized deferred financing costs and discounts/premiums.

INCOME TAXES

INCOME TAXES	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES In general, the Company is required to use an estimated annual effective tax rate ("AETR") to measure the income tax expense or benefit recognized on a year to date basis in an interim period. In addition, certain items included in income tax expense as well as the tax impact of certain items included in pretax income must be treated as discrete items. The income tax expense or benefit associated with these discrete items is fully recognized in the interim period in which the items occur. On March 27, 2020, the Coronavirus Aid, Relief and Economic Security ("CARES Act") was enacted and signed into law. Certain provisions of the CARES Act impacted the 2019 income tax provision computations of the Company and have been reflected in the consolidated financial statements for the six months ended June 30, 2020. The CARES Act modified the interest limitation under section 163(j) of the Internal Revenue Code ("163(j)") for 2019 and 2020, increasing the allowable business interest deduction from 30% to 50% of adjusted taxable income. This modification significantly increased the allowable interest deduction for the Company in 2019, resulting in less utilization of net operating loss carryforwards. For state tax purposes, an estimated net benefit of approximately $10,500 was recognized for the three months ended March 31, 2020 driven by a decrease in federal taxable income for 2019 due to the 163(j) law change under the CARES Act. However, due to the decoupling from the CARES Act by New York State and New York City, the net benefit decreased approximately $8,000 in the three months ended June 30, 2020, resulting in a net state tax benefit of approximately $2,500 for the six months ended June 30, 2020. In addition, the CARES Act accelerated the ability of companies to receive refunds of Alternative Minimum Tax credits. For the Company, the remaining approximately $12,000 in tax credits will be refunded as part of the 2019 tax filing and is included in prepaid expenses and other current assets in the accompanying balance sheets. Altice USA For the three and six months ended June 30, 2020, Altice USA recorded a tax expense of $58,826 and $75,861 on pre-tax income of $170,303 and $185,800, respectively, resulting in an effective tax rate that was higher than the U.S. statutory tax rate. The higher tax rate was due to the impact of certain non-deductible expenses and certain state tax expense adjustments, partially offset by a benefit resulting from the recently enacted CARES Act. For the three and six months ended June 30, 2019, Altice USA recorded a tax expense of $41,160 and $18,574 on pre-tax income of $127,570 and $79,786, respectively, resulting in an effective tax rate that was higher than the U.S. federal statutory tax rate. The primary differences between the effective tax rate and the statutory tax rate are due to a revaluation of state deferred taxes primarily due to certain changes to the state tax rates used to measure the Company’s deferred tax liabilities and certain non-deductible expenses. CSC Holdings For the three and six months ended June 30, 2020, CSC Holdings recorded a tax expense of $56,629 and $61,658 on pre-tax income of $170,302 and $185,453, respectively, resulting in an effective tax rate that was higher than the U.S. statutory tax rate. The higher tax rate was due to the impact of certain non-deductible expenses and certain state tax expense adjustments, partially offset by a benefit resulting from the recently enacted CARES Act. For the three and six months ended June 30, 2019, CSC Holdings recorded a tax expense of $47,828 and $32,152 on pre-tax income of $151,970 and $128,430, respectively, resulting in an effective tax rate that was higher than the U.S. statutory tax rate. The higher tax rate was due to revaluation of state deferred taxes primarily due to certain changes to the state tax rates used to measure CSC Holdings’ deferred tax liabilities, partially offset by certain non-deductible expenses.

SHARE-BASED COMPENSATION

SHARE-BASED COMPENSATION	6 Months Ended
	Jun. 30, 2020
Share-based Payment Arrangement [Abstract]
SHARE-BASED COMPENSATION	SHARE-BASED COMPENSATION Long Term Incentive Plan Pursuant to the 2017 Altice USA Long Term Incentive Plan, as amended (the "LTIP"), the Company may grant awards of options, restricted shares, restricted share units, stock appreciation rights, performance stock, performance stock units and other awards (the 2017 Long Term Incentive Plan or the "LTIP"). In June 2020, shareholders of the Company approved an increase to the number of shares authorized for issuance under the LTIP by 35,000,000 shares to 54,879,291, and approved the extension of the term to June 10, 2030. 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 Neptune Holding US Limited Partnership ("Neptune LP"). The following table summarizes activity relating to these carry units: Number of Time Weighted Average Grant Date Fair Value Balance, December 31, 2019 37,518,750 $ 2.35 Vested (27,343,750) 2.31 Forfeited (212,500) 0.56 Balance, June 30, 2020 9,962,500 $ 2.71 The weighted average fair value per unit was $1.75 and $3.25, as of June 30, 2020 and December 31, 2019, respectively. For the three and six months ended June 30, 2020 and 2019, the Company recognized share-based compensation expense of $3,937 and $7,057, and $7,861 and $14,334, respectively, related to the carry unit plan. Stock Options The following table summarizes activity related to the stock options granted to Company employees: Shares Under Option Weighted Average Weighted Average Remaining Aggregate Intrinsic Balance at December 31, 2019 14,083,741 $ 19.12 8.74 $ 112,915 Granted 26,093,256 28.32 Exercised (209,105) 17.46 Forfeited (1,749,476) 21.44 Balance at June 30, 2020 38,218,416 25.31 9.14 49,108,141 Options exercisable at June 30, 2020 788,053 $ 17.70 7.17 $ 3,848,578 (a) The aggregate intrinsic value is calculated as the difference between the exercise price and the closing price of the Company's Class A common stock at the respective date. The Company recognized share-based compensation expense related to employee stock options for the three and six months ended June 30, 2020 and 2019 of $25,327 and $45,676 and $7,817 and $15,134, respectively. As of June 30, 2020, there was $200,745 of total unrecognized compensation cost related to stock options which is expected to be recognized over a weighted-average period of approximately 3.16 years. The following weighted-average assumptions were used to calculate the fair values of stock option awards granted during the six months ended June 30, 2020: Risk-free interest rate 1.45% Expected life (in years) 6.38 Dividend yield —% Volatility 28.46% Grant date fair value $7.74 Performance Stock Unit Awards In January 2020, certain employees of the Company were granted performance stock units ("PSUs"). Each PSU gives the employee the right to receive one share of Altice USA class A common stock, upon achievement of a specified stock price hurdle. The PSUs will be forfeited if the applicable performance measure is not achieved prior to January 29, 2024 (January 29, 2026 in the event of a recession or market disruption event prior to achievement of the performance measure, which criteria was met in June 2020) or if the employee does not continue to provide services to the Company through the achievement date of the applicable performance measure. As of June 30, 2020, the Company had 7,480,469 PSUs outstanding. The PSUs have a weighted average grant date fair value of $10.65 per unit. For the three and six months ended June 30, 2020, the Company recognized share based compensation expense of $4,419 and $8,320 related to these PSUs. As of June 30, 2020 there was $71,127 of total unrecognized compensation cost related to outstanding PSUs which is expected to be recognized over a weighted-average period of approximately 5.6 years. The following assumptions were used to calculate the fair values of the PSUs granted during the six months ended June 30, 2020: Risk-free interest rate 1.46% Expected life (in years) 4 and 6 Dividend yield —% Volatility 34.22%

AFFILIATE AND RELATED PARTY TRA

AFFILIATE AND RELATED PARTY TRANSACTIONS	6 Months Ended
	Jun. 30, 2020
Related Party Transactions [Abstract]
AFFILIATE AND RELATED PARTY TRANSACTIONS	AFFILIATE AND RELATED PARTY TRANSACTIONS Affiliate and Related Party Transactions Altice USA is controlled by Patrick Drahi who is also the controlling stockholder of Altice Europe and its subsidiaries and other entities. As the transactions discussed below were conducted between entities under common control by Mr. Drahi, 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. The following table summarizes the revenue and charges related to services provided to or received from affiliates and related parties: Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Revenue $ 3,379 $ 496 $ 6,867 $ 1,088 Operating expenses: Programming and other direct costs $ (1,738) $ (2,087) $ (3,927) $ (3,774) Other operating expenses, net (2,161) (2,020) (6,102) (4,266) Operating expenses, net (3,899) (4,107) (10,029) (8,040) Net charges - Altice USA $ (520) $ (3,611) $ (3,162) $ (6,952) Capital Expenditures $ 3,676 $ 2,536 $ 10,901 $ 5,890 Revenue The Company recognized revenue primarily from the sale of advertising to a subsidiary of Altice Europe and a foundation controlled by Patrick Drahi. Programming and other direct costs Programming and other direct costs include costs incurred by the Company for advertising services provided by a subsidiary of Altice Europe. Other operating expenses, net Other operating expenses primarily include charges for services provided by other subsidiaries of Altice Europe and other related parties. Capital Expenditures Capital expenditures primarily include costs for equipment purchased and software development services provided by subsidiaries of Altice Europe. Aggregate amounts that were due from and due to affiliates and related parties are summarized below: Altice USA CSC Holdings Altice USA and CSC Holdings June 30, June 30, December 31, 2019 Due from: Altice Europe $ 432 $ 302 $ 4,076 Other affiliates and related parties 3,020 3,020 2,698 $ 3,452 $ 3,322 $ 6,774 Due to: Altice Europe $ 5,722 $ 5,722 $ 7,456 $ 5,722 $ 5,722 $ 7,456 Amounts due from affiliates presented in the table above represent amounts paid by the Company on behalf of or for services provided to the respective related party. Amounts due to affiliates relate to the purchase of equipment and advertising services, as well as reimbursement for payments made on our behalf. In June 2020, pursuant to the Company's share repurchase program, the Company purchased 3,582,525 Altice USA Class A common stock held by Altice Europe for a total consideration of $84,906. See further information regarding the Company's share repurchase program in Note 1. CSC Holdings CSC Holdings made cash equity distribution payments to its parent aggregating $652,383, and $1,372,733, respectively, during the three and six months ended June 30, 2020. The distributions for the three months ended June 30, 2020 were recorded as a decrease in retained earnings of $105,980, representing the cumulative earnings through the distribution dates, and a decrease in other member's equity of $546,403. The distributions for the six months ended June 30, 2020 were recorded as a decrease in retained earnings of $130,297, representing the cumulative earnings through the distribution dates, and a decrease in other member's equity of $1,242,436. CSC Holdings made cash equity distribution payments to its parent aggregating $635,028 and $1,229,490, respectively, during the three and six months ended June 30, 2019. The distributions for the three months ended June 30, 2019 were recorded as a decrease in retained earnings of $90,324, representing the cumulative earnings through the distribution dates, and a decrease in other member's equity of $544,704. The distributions for the six months ended June 30, 2019 were recorded as a decrease in retained earnings of $633,541, representing the cumulative earnings through the distribution dates, and a decrease in other member's equity of $595,949.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Legal Matters In the latter half of 2018, eight named plaintiffs, each on behalf of a putative class of stockholders who purchased Company common stock in Altice USA's IPO pursuant to the Registration Statement and Prospectus, filed complaints (seven in New York State Supreme Court, one in United States District Court for the Eastern District of New York). The lawsuits name as defendants Altice USA, Altice Europe, and Altice USA's directors, among others, and assert that all defendants violated Sections 11 and 12 of the Securities Act of 1933 (the "Securities Act") and that the individual defendants violated Section 15 of the Securities Act as control persons. In a consolidated amended complaint filed in the lawsuit in the Eastern District of New York, plaintiff also asserts violations of Section 10(b) of the Securities Act of 1934 ("34 Act"), Rule 10b-5 promulgated thereunder, and Section 20 of the 34 Act against Altice USA, Altice Europe, and certain individual directors. The facts underlying each case are substantively similar, with plaintiffs alleging that the Registration Statement and Prospectus misrepresented or omitted material facts relating to the negative performance of Altice France and Altice Portugal, the disclosure of which in November 2017 negatively impacted the value of Altice USA’s stock. In June of 2019, plaintiffs in the New York State action filed a consolidated amended complaint, which the Company moved to dismiss in July of 2019. The Company moved to dismiss the complaint in the Eastern District of New York in October 2019. On June 26, 2020, the state Court granted the Company’s motion to dismiss. Plaintiffs in the New York State action filed a notice of appeal on July 21, 2020. On June 23, 2020, a purported stockholder of the Company filed a complaint in the Court of Chancery of the State of Delaware, derivatively on behalf of the Company, against Patrick Drahi, Next Alt S.A.R.L., and those directors of the Company who are members of the Compensation Committee (collectively, the “Director Defendants”). The Company is also named as a nominal defendant in the complaint. The complaint alleges that the Director Defendants breached their fiduciary duties to the Company’s stockholders, and wasted corporate assets, by approving certain equity grants for Patrick Drahi. The complaint seeks rescission of the equity awards, monetary damages, and costs and disbursements for the plaintiff. The Company intends to vigorously defend these lawsuits. Although the outcome of the matter cannot be predicted and the impact of the final resolution of these matters on the Company’s results of operations in any particular subsequent reporting period is not known at this time, management does not believe that the ultimate resolution of these matters will have a material adverse effect on the operations or financial position of the Company or the ability of the Company to meet its financial obligations as they become due. On November 6, 2018, Sprint Communications Company L.P ("Sprint") filed a complaint in the U.S. District Court for the District of Delaware alleging that the Company infringes Sprint’s patents purportedly by providing Voice over Internet Protocol ("VoIP") services. On December 3, 2018, Sprint filed a second complaint alleging that the Company infringes Sprint’s patents purportedly by providing certain VOD related services. The lawsuits are part of a pattern of litigation that was initiated as far back as 2005 by Sprint against numerous broadband and telecommunications providers, which has resulted in judgments and settlements of significant value for Sprint. The Company intends to vigorously defend the lawsuits. Although the outcome of the matter cannot be predicted and the impact of the final resolution of this matter on the Company’s results of operations in any particular subsequent reporting period is not known at this time, management does not believe that the ultimate resolution of the matter will have a material adverse effect on the operations or financial position of the Company or the ability of the Company to meet its financial obligations as they become due, but it could be material to the Company’s consolidated results of operations or cash flows for any one period. 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. In the event that the Company is found to infringe on any patent rights, the Company may be subject to substantial damages and/or an injunction that could require the Company or its vendors to modify certain products and services the Company offers to its subscribers, as well as enter into royalty or license agreements with respect to the patents at issue. The Company believes that the claims are without merit, 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, disputes and investigations, some of which may involve claims for substantial damages, fines or penalties. 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.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTSOn July 14, 2020, the Company completed its acquisition of certain cable assets in New Jersey for approximately $150,000, subject to certain closing adjustments as set forth in the asset purchase agreement. In July 2020, the Company entered into an agreement to sell 49.99% of its Lightpath fiber enterprise business for an implied enterprise value of $3,200,000. The Company will receive total gross cash proceeds of approximately $2,300,000 from the sale and related financing activity and will record a gain upon closing. Approximately $1,100,000 of the net proceeds after tax are expected to be used by the Company to repay debt such that the transaction is at least leverage-neutral to CSC Holdings. The Company will retain a 50.01% interest in Lightpath and maintain control. Accordingly, the Company will continue to consolidate the operating results of the Lightpath business. The transaction is currently expected to close in the fourth quarter of 2020 following the satisfaction of closing conditions, including receipt of necessary regulatory approvals. Upon closing, Lightpath will be financed independently outside of the CSC Holdings restricted group.

BASIS OF PRESENTATION (Policies

BASIS OF PRESENTATION (Policies)	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Reclassifications	Reclassifications Certain reclassifications have been made to the 2019 financial statements to conform to the 2020 presentation.

Accounting Policies (Policies)

Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Recently Adopted Accounting Pronouncements and Recently Issued But Not Yet Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements ASU No. 2020-04, Facilitation of the Effects of Reference Rate Reform on Financial Reporting ("ASU 2020-04") In March 2020, the Financial Accounting Standards Board ("FASB") issued new accounting guidance related to the effects of reference rate reform on financial reporting. The guidance, effective for reporting periods through December 31, 2022, provides accounting relief for contract modifications that replace an interest rate impacted by reference rate reform (e.g., LIBOR) with a new alternative reference rate. The Company adopted the guidance as of March 31, 2020. The adoption of this guidance did not have an impact on the Company's consolidated financial statements. ASU No. 2019-12, Simplifying the Accounting for Income Taxes ("ASU 2019-12") In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740). ASU 2019-12 simplifies the accounting for income taxes by eliminating certain exceptions for investments, intraperiod allocations and interim calculations. The new guidance also simplifies aspects of the accounting for franchise taxes, enacted changes in tax laws or rates, and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. The amendments did not create new accounting requirements. The Company adopted the standard as of January 1, 2020. The adoption of this standard did not have a significant impact on the Company's consolidated financial statements. ASU No. 2018-15, Customer’s Accounting for Implementation Costs in a Cloud Computing Arrangement That Is a Service Contract ("ASU 2018-15") In August 2018, the FASB issued ASU 2018-15 which requires upfront implementation costs incurred in a cloud computing arrangement (or hosting arrangement) that is a service contract to be amortized to hosting expense over the term of the arrangement, beginning when the module or component of the hosting arrangement is ready for its intended use. The Company adopted the standard as of January 1, 2020. The adoption of this standard did not have a significant impact on the Company's consolidated financial statements. ASU No. 2017-04, Intangibles-Goodwill and Other (Topic 350) ("ASU 2017-04") In January 2017, the FASB issued ASU 2017-04 which 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. The Company adopted the standard as of January 1, 2020. The adoption of this standard did not have an impact on the Company's consolidated financial statements. ASU No. 2016-13, Measurement of Credit Losses on Financial Instruments ("ASU 2016-13") In June 2016, the FASB issued ASU 2016-13 which requires a financial asset (or a group of financial assets) measured at amortized cost to be assessed for impairment under the current expected credit loss model rather than an incurred loss model. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions and reasonable and supportable forecasts that affect the collectability of the reported amount. ASU 2016-13 became effective for the Company on January 1, 2020 and the adoption of this standard did not have a significant impact on the Company's consolidated financial statements. The Company will continue to actively monitor the impact of the recent coronavirus (COVID-19) pandemic on expected credit losses. Recently Issued But Not Yet Adopted Accounting Pronouncements ASU No. 2018-14, Changes to the Disclosure Requirements for Defined Benefit Plans ("ASU 2018-14")

BASIS OF PRESENTATION (Tables)

BASIS OF PRESENTATION (Tables)	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Schedule of Stock by Class	Common Stock of Altice USA The following table provides details of Altice USA's shares of common stock outstanding: Shares of Common Stock Outstanding Class A Class B Balance at December 31, 2019 446,749,307 186,245,832 Conversion of Class B common stock to Class A common stock 51,475 (51,475) Shares issued in connection with stock option exercises 209,105 — Retirement of Class A common shares in connection with the Company's stock repurchase plan (see Note 1) (56,956,374) — Shares issued from treasury upon vesting of redeemable equity and restricted awards 3,542,515 — Balance at June 30, 2020 393,596,028 186,194,357

Revenue Recognition and Defer_2

Revenue Recognition and Deferred Revenue (Tables)	6 Months Ended
	Jun. 30, 2020
Disaggregation of Revenue [Abstract]
Disaggregation of Revenue	The following table presents the composition of revenue: Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Residential: Broadband $ 920,363 $ 806,250 $ 1,805,892 $ 1,581,823 Video 952,526 1,018,426 1,899,587 2,035,756 Telephony 117,322 150,232 242,352 304,696 Business services and wholesale 365,564 357,806 730,094 708,495 News and advertising 96,631 114,450 202,171 209,188 Mobile 19,866 — 38,222 — Other 2,707 3,917 6,917 7,690 Total revenue $ 2,474,979 $ 2,451,081 $ 4,925,235 $ 4,847,648
Contract with Customer, Asset and Liability	The following table provides information about customer contract costs and deferred revenue related to contracts with customers: June 30, 2020 December 31, 2019 Customer contract costs (a) $ 21,724 $ 30,758 Deferred revenue (b) 164,732 182,034 (a) Customer contract costs include primarily sales commissions for business services enterprise customers that are deferred and amortized over the average contract term. (b) Deferred revenue represents payments received from customers for services that have yet to be provided and installation revenue which is deferred and recognized over the benefit period. A portion of the Company's deferred revenue represents payments for services for up to one month in advance from residential and small and medium sized business ("SMB") customers which is realized within the following month as services are performed and the remaining portion is recognized over the contract period.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Schedule of Weighted Average Number of Shares	The following table presents a reconciliation of weighted average shares used in the calculations of the basic and diluted income per share attributable to Altice USA stockholders for the three and six months ended June 30, 2020 and 2019: Three Months Ended Six Months Ended Three Months Ended Six Months Ended (in thousands) Basic weighted average shares outstanding 587,587 604,500 668,031 681,703 Effect of dilution: Stock options 1,857 2,079 566 285 Restricted stock 22 18 51 26 Diluted weighted average shares outstanding 589,466 606,597 668,648 682,014 Weighted average shares excluded from diluted weighted average shares outstanding: Anti-dilutive shares 28,514 24,362 1,292 6,350 Performance stock units and restricted stock whose performance metrics have not been achieved. 8,943 7,758 — —

RESTRUCTURING AND OTHER EXPEN_2

RESTRUCTURING AND OTHER EXPENSE (Tables)	6 Months Ended
	Jun. 30, 2020
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 Accrual balance at December 31, 2019 $ 1,676 $ 2,332 $ 4,008 Restructuring charges — 2,059 2,059 Payments and other (1,639) (1,813) (3,452) Accrual balance at June 30, 2020 $ 37 $ 2,578 $ 2,615 The following table summarizes the activity for the 2019 Restructuring Plan: Severance and Other Employee Related Costs Accrual balance at December 31, 2019 $ 37,946 Restructuring charges 3,180 Payments and other (18,186) Accrual balance at June 30, 2020 $ 22,940

LEASES (Tables)

LEASES (Tables)	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Lesee, Operating Lease And Finance Lease, Liability	Balance sheet information related to the Company's leases is presented below: Balance Sheet location June 30, 2020 December 31, 2019 Operating leases: Right-of-use lease assets Right-of-use operating lease assets $ 270,592 $ 280,340 Right-of-use lease liability, current Other current liabilities 40,440 38,836 Right-of-use lease liability, long-term Right-of-use operating lease liability 259,297 269,062 Finance leases: Right-of-use lease assets Property, plant and equipment 137,370 70,339 Right-of-use lease liability, current Current portion of long-term debt 49,478 22,017 Right-of-use lease liability, long-term Long-term debt 86,571 47,403
Lease, Cost	The following provides details of the Company's lease expense: Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Operating lease expense, net $ 14,849 $ 14,948 $ 29,853 $ 30,226 Amortization of assets 6,960 1,630 11,420 3,192 Interest on lease liabilities 1,477 388 2,504 746 Total finance lease expense 8,437 $ 2,018 13,924 3,938 $ 23,286 $ 16,966 $ 43,777 $ 34,164
Lessee, Topic 842, Other Lease Information	Other information related to leases is presented below: As of June 30, 2020 2019 Right-of-use assets acquired in exchange for operating lease obligations $ 15,430 $ 43,441 Cash Paid For Amounts Included In Measurement of Liabilities: Operating cash flows related to finance leases 2,504 746 Operating cash flows related to operating leases 32,126 32,481 Weighted Average Remaining Lease Term: Operating leases 9.3 years 9.6 years Finance leases 2.9 years 4.6 years Weighted Average Discount Rate: Operating leases 5.86 % 6.06 % Finance leases 5.66 % 5.86 %
Finance Lease, Liability, Maturity	The minimum future annual payments under non-cancellable leases during the next five years and thereafter, at rates now in force, are as follows: Finance leases Operating leases 2020 (excluding the six months ended June 30, 2020) $ 30,527 $ 27,389 2021 50,543 43,615 2022 46,298 49,668 2023 15,501 39,694 2024 3,413 35,261 Thereafter 300 200,665 Total future minimum lease payments, undiscounted 146,582 396,292 Less: Imputed interest (10,533) (96,555) Present value of future minimum lease payments $ 136,049 $ 299,737
Lessee, Operating Lease, Liability, Maturity	The minimum future annual payments under non-cancellable leases during the next five years and thereafter, at rates now in force, are as follows: Finance leases Operating leases 2020 (excluding the six months ended June 30, 2020) $ 30,527 $ 27,389 2021 50,543 43,615 2022 46,298 49,668 2023 15,501 39,694 2024 3,413 35,261 Thereafter 300 200,665 Total future minimum lease payments, undiscounted 146,582 396,292 Less: Imputed interest (10,533) (96,555) Present value of future minimum lease payments $ 136,049 $ 299,737

INTANGIBLE ASSETS (Tables)

INTANGIBLE ASSETS (Tables)	6 Months Ended
	Jun. 30, 2020
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 June 30, 2020 As of December 31, 2019 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Useful Lives Customer relationships $ 6,017,524 $ (3,174,454) $ 2,843,070 $ 6,017,524 $ (2,843,561) $ 3,173,963 8 to 18 years Trade names 1,081,083 (846,929) 234,154 1,081,083 (798,484) 282,599 2 to 5 years Other amortizable intangibles 53,418 (33,426) 19,992 53,181 (28,634) 24,547 1 to 15 years $ 7,152,025 $ (4,054,809) $ 3,097,216 $ 7,151,788 $ (3,670,679) $ 3,481,109

DEBT (Tables)

DEBT (Tables)	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Schedule of Line of Credit Facilities	The following details the Company's outstanding debt: Interest Rate June 30, 2020 December 31, 2019 Date Issued Maturity Date Principal Amount Carrying Amount (a) Principal Amount Carrying Amount (a) Senior Notes: November 15, 2011 November 15, 2021 6.750 % $ 1,000,000 $ 984,412 $ 1,000,000 $ 979,178 September 27, 2012 September 15, 2022 5.875 % 649,024 608,861 649,024 600,849 May 23, 2014 June 1, 2024 5.250 % 750,000 690,331 750,000 683,940 October 18, 2018 July 15, 2025 7.750 % (e) 1,740 1,698 1,740 1,695 October 9, 2015 October 15, 2025 10.875 % 1,684,221 1,666,435 1,684,221 1,665,237 October 18, 2018 April 1, 2028 7.500 % 4,118 4,112 4,118 4,112 November 27, 2018 July 15, 2025 7.750 % (e) 617,881 606,479 617,881 605,583 November 27, 2018 April 1, 2028 7.500 % 1,045,882 1,044,349 1,045,882 1,044,278 July 10 and October 7, 2019 January 15, 2030 5.750 % 2,250,000 2,287,660 2,250,000 2,289,168 June 16, 2020 December 1, 2030 4.625 % 625,000 622,176 — — Senior Guaranteed Notes: October 9, 2015 October 15, 2025 6.625 % 1,000,000 990,233 1,000,000 989,483 September 23, 2016 April 15, 2027 5.500 % 1,310,000 1,305,688 1,310,000 1,305,430 January 29, 2018 February 1, 2028 5.375 % 1,000,000 993,116 1,000,000 992,757 November 27, 2018 July 15, 2023 5.375 % (e) 1,095,825 1,083,676 1,095,825 1,081,879 November 27, 2018 May 15, 2026 5.500 % 1,498,806 1,486,760 1,498,806 1,485,911 January 24, 2019 February 1, 2029 6.500 % 1,750,000 1,747,118 1,750,000 1,746,996 June 16, 2020 December 1, 2030 4.125 % 1,100,000 1,095,311 — — 17,382,497 17,218,415 15,657,497 15,476,496 CSC Holdings Restricted Group: Revolving Credit Facility (c) (c) (b) — — — — Term Loan B July 17, 2025 2.435 % 2,910,000 2,897,887 2,925,000 2,911,729 Incremental Term Loan B-3 January 15, 2026 2.435 % 1,259,063 1,254,243 1,265,438 1,260,200 Incremental Term Loan B-5 April 15, 2027 2.685 % 2,992,500 2,970,328 3,000,000 2,976,358 7,161,563 7,122,458 7,190,438 7,148,287 Collateralized indebtedness (see Note 11) 1,699,566 1,601,107 1,699,566 1,585,088 Finance lease obligations (see Note 8) 136,049 136,049 69,420 69,420 Notes payable and supply chain financing (d) 119,889 107,658 156,519 140,994 26,499,564 26,185,687 24,773,440 24,420,285 Less: current portion of credit facility debt (72,750) (72,750) (65,250) (65,250) Less: current portion of senior guaranteed notes (1,095,825) (1,083,676) — — Less: current portion of senior notes (619,621) (608,177) — — Less: current portion of finance lease obligations (49,478) (49,478) (22,017) (22,017) Less: current portion of notes payable and supply chain financing (45,209) (45,209) (83,415) (83,415) (1,882,883) (1,859,290) (170,682) (170,682) Long-term debt $ 24,616,681 $ 24,326,397 $ 24,602,758 $ 24,249,603 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums and with respect to certain notes, a fair value adjustment resulting from the Cequel and Cablevision acquisitions. (b) At June 30, 2020, $141,949 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $2,333,051 of the facility was undrawn and available, subject to covenant limitations. (c) The revolving credit facility of an aggregate principal amount of $2,275,000 matures in January 2024 and priced at LIBOR plus 2.25%. The remaining revolving credit facility of an aggregate principal amount of $200,000 matures in November 2021 and priced at LIBOR plus 3.25%. (d) Includes $37,581 related to supply chain financing agreements that is required to be repaid within one year from the date of the respective agreement. The principal amounts include $59,451 of notes payable that will be reclassified to collateralized indebtedness upon the maturity, in January 2021, of a monetization contract related to the synthetic monetization closeout transaction in November 2019.
Schedule of Extinguishment of Debt	The following table provides a summary of the loss on extinguishment of debt and the write-off of deferred financing costs recorded by the Company upon the redemption of senior notes and the refinancing of credit facilities: Three months ended Six months ended June 30, 2019 CSC Holdings 10.125% Senior Notes due 2023 $ — $ 154,666 Refinancing and subsequent amendment to CSC Holdings credit facility 1,194 4,430 $ 1,194 $ 159,096
Schedule of Maturities of Long-term Debt	The future maturities of debt payable by the Company under its various debt obligations outstanding as of June 30, 2020, including notes payable and collateralized indebtedness (see Note 11), but excluding finance lease obligations (see Note 8), are as follows: 2020 (excluding the six months ended June 30, 2020) (a) $ 1,782,180 2021 1,092,181 2022 728,667 2023 1,835,383 2024 822,889 Thereafter 20,102,215

DERIVATIVE CONTRACTS AND COLL_2

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS (Tables)	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Interest Rate Derivatives	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 Fair Value at June 30, 2020 December 31, 2019 Asset Derivatives: Interest rate swap contracts Derivative contracts, long-term $ 4,058 $ — Prepaid forward contracts Derivative contracts, long-term 221,733 25,207 225,791 25,207 Liability Derivatives: Interest rate swap contracts Other current liabilities (4,016) (469) Prepaid forward contracts Liabilities under derivative contracts, long-term (3,520) (94,795) Interest rate swap contracts Liabilities under derivative contracts, long-term (309,396) (160,871) $ (316,932) $ (256,135)
Location of Assets and Liabilities Associated With Derivative Instruments Within the Condensed Consolidated Balance Sheets	The following table presents certain statement of operations data related to our derivative contracts and the underlying common stock: Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Gain (loss) on derivative contracts related to change in the value of equity derivative contracts related to Comcast common stock $ (152,061) $ (49,624) $ 287,800 $ (226,653) Change in the fair value of Comcast common stock included in gain (loss) on investments 197,594 98,794 (257,302) 353,519 Loss on interest rate swap contracts, net of a gain of $74,835 recorded in the 2020 six month period in connection with the early termination of the swap agreements discussed below (33,735) (26,900) (88,567) (50,572)
Schedule of Collateralized Debt Settlement	The following is a summary of interest rate swap contracts outstanding at June 30, 2020: Trade Date Maturity Date Notional Amount Company Pays Company Receives December 2018 January 2025 $ 500,000 Fixed rate of 1.53% Three-month LIBOR December 2018 January 2022 500,000 Fixed rate of 2.733% Three-month LIBOR December 2018 January 2025 500,000 Fixed rate of 1.625% Three-month LIBOR December 2018 December 2026 750,000 Fixed rate of 2.9155% Three-month LIBOR December 2018 December 2026 750,000 Fixed rate of 2.9025% Three-month LIBOR March 2020 January 2025 500,000 Fixed rate of 1.458% Three-month LIBOR March 2020 January 2022 500,000 Three-month LIBOR Fixed rate of 2.733% April 2020 April 2021 2,850,000 Six-month LIBOR minus 0.5185% One-month LIBOR

FAIR VALUE MEASUREMENT (Tables)

FAIR VALUE MEASUREMENT (Tables)	6 Months Ended
	Jun. 30, 2020
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 June 30, 2020 December 31, 2019 Assets: Money market funds Level I $ 1,842,086 $ 563,704 Investment securities pledged as collateral Level I 1,674,395 1,931,697 Prepaid forward contracts Level II 221,733 25,207 Interest rate swap contracts Level II 4,058 — Liabilities: Prepaid forward contracts Level II 3,520 94,795 Interest rate swap contracts Level II 313,412 161,340 Contingent consideration related to 2017 and 2018 acquisitions Level III 1,767 7,250
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: June 30, 2020 December 31, 2019 Fair Value Carrying Estimated Carrying Estimated Credit facility debt Level II $ 7,122,458 $ 7,161,563 $ 7,148,287 $ 7,190,438 Collateralized indebtedness Level II 1,601,107 1,696,376 1,585,088 1,611,095 Senior guaranteed notes Level II 8,701,902 9,094,711 7,602,456 8,220,518 Senior notes Level II 8,516,513 9,037,404 7,874,040 8,728,870 Notes payable and supply chain financing Level II 107,658 108,619 140,994 141,713 $ 26,049,638 $ 27,098,673 $ 24,350,865 $ 25,892,634 (a) Amounts are net of unamortized deferred financing costs and discounts/premiums.

SHARE-BASED COMPENSATION (Table

SHARE-BASED COMPENSATION (Tables)	6 Months Ended
	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Activity for Shares	The following table summarizes activity relating to these carry units: Number of Time Weighted Average Grant Date Fair Value Balance, December 31, 2019 37,518,750 $ 2.35 Vested (27,343,750) 2.31 Forfeited (212,500) 0.56 Balance, June 30, 2020 9,962,500 $ 2.71
Share-based Compensation, Stock Options, Activity	The following table summarizes activity related to the stock options granted to Company employees: Shares Under Option Weighted Average Weighted Average Remaining Aggregate Intrinsic Balance at December 31, 2019 14,083,741 $ 19.12 8.74 $ 112,915 Granted 26,093,256 28.32 Exercised (209,105) 17.46 Forfeited (1,749,476) 21.44 Balance at June 30, 2020 38,218,416 25.31 9.14 49,108,141 Options exercisable at June 30, 2020 788,053 $ 17.70 7.17 $ 3,848,578
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	Risk-free interest rate 1.45% Expected life (in years) 6.38 Dividend yield —% Volatility 28.46% Grant date fair value $7.74
Performance Based Vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	Risk-free interest rate 1.46% Expected life (in years) 4 and 6 Dividend yield —% Volatility 34.22%

AFFILIATE AND RELATED PARTY T_2

AFFILIATE AND RELATED PARTY TRANSACTIONS (Tables)	6 Months Ended
	Jun. 30, 2020
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 affiliates and related parties: Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Revenue $ 3,379 $ 496 $ 6,867 $ 1,088 Operating expenses: Programming and other direct costs $ (1,738) $ (2,087) $ (3,927) $ (3,774) Other operating expenses, net (2,161) (2,020) (6,102) (4,266) Operating expenses, net (3,899) (4,107) (10,029) (8,040) Net charges - Altice USA $ (520) $ (3,611) $ (3,162) $ (6,952) Capital Expenditures $ 3,676 $ 2,536 $ 10,901 $ 5,890 Altice USA CSC Holdings Altice USA and CSC Holdings June 30, June 30, December 31, 2019 Due from: Altice Europe $ 432 $ 302 $ 4,076 Other affiliates and related parties 3,020 3,020 2,698 $ 3,452 $ 3,322 $ 6,774 Due to: Altice Europe $ 5,722 $ 5,722 $ 7,456 $ 5,722 $ 5,722 $ 7,456

DESCRIPTION OF BUSINESS AND R_2

DESCRIPTION OF BUSINESS AND RELATED MATTERS (Details) $ in Thousands	3 Months Ended			6 Months Ended	22 Months Ended	25 Months Ended
	Mar. 31, 2020USD ($)	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Jun. 30, 2020USD ($)segmentshares	Mar. 31, 2020USD ($)	Jun. 30, 2020USD ($)shares	Dec. 31, 2019shares	Jul. 31, 2019USD ($)	Jun. 08, 2018USD ($)
Business Acquisition [Line Items]
Number of segments | segment				1
Share repurchase authorized | $									$ 2,000,000
Shares repurchased (in shares)				56,956,374		157,653,766
Value of shares repurchased | $	$ 749,998	$ 599,952	$ 600,001	$ 1,381,235	$ 3,568,109
Availability remaining under its stock repurchase program | $				$ 3,431,891		$ 3,431,891
Common stock, shares outstanding (in shares)				579,790,385		579,790,385
Common Class A
Business Acquisition [Line Items]
Shares repurchased (in shares)				56,956,374
Common stock, shares outstanding (in shares)				393,596,028		393,596,028	446,749,307
Common Class B
Business Acquisition [Line Items]
Shares repurchased (in shares)				0
Common stock, shares outstanding (in shares)				186,194,357		186,194,357	186,245,832
2019 Share Repurchase Authorization [Member]
Business Acquisition [Line Items]
Share repurchase authorized | $								$ 5,000,000
Additional Paid-in Capital [Member]
Business Acquisition [Line Items]
Value of shares repurchased | $	$ 749,686	$ 599,703	$ 599,707

BASIS OF PRESENTATION - Narrati

BASIS OF PRESENTATION - Narrative (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Class of Stock [Line Items]
Antidilutive securities	28,514		1,292		24,362	6,350
Document Period End Date					Jun. 30, 2020
CSC Holdings
Class of Stock [Line Items]
Cash distributions to shareholders	$ 652,383	$ 720,350
Payments of dividends					$ 1,372,733	$ 1,229,489
Distribution Made to Limited Liability Company (LLC) Member, Non-cash Distributions Paid			$ 635,028	$ 594,462

BASIS OF PRESENTATION - Schedul

BASIS OF PRESENTATION - Schedule of Stock by Class (Details) - shares	6 Months Ended	25 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Common Stock Outstanding Roll Forward [Roll Forward]
Retirement of Class A common shares in connection with the Company's stock repurchase plan (in shares)	(56,956,374)	(157,653,766)
Ending balance common stock, shares outstanding (in shares)	579,790,385	579,790,385
Common Class A
Common Stock Outstanding Roll Forward [Roll Forward]
Beginning balance common stock, shares outstanding (in shares)	446,749,307
Conversion of Class B common stock to Class A common stock (in shares)	51,475
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	209,105
Retirement of Class A common shares in connection with the Company's stock repurchase plan (in shares)	(56,956,374)
Stock Issued During Period, Shares, Treasury Stock Reissued	3,542,515
Ending balance common stock, shares outstanding (in shares)	393,596,028	393,596,028
Common Class B
Common Stock Outstanding Roll Forward [Roll Forward]
Beginning balance common stock, shares outstanding (in shares)	186,245,832
Conversion of Class B common stock to Class A common stock (in shares)	(51,475)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	0
Retirement of Class A common shares in connection with the Company's stock repurchase plan (in shares)	0
Stock Issued During Period, Shares, Treasury Stock Reissued	0
Ending balance common stock, shares outstanding (in shares)	186,194,357	186,194,357

Revenue Recognition and Defer_3

Revenue Recognition and Deferred Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Contract Assets and Liabilities [Line Items]
Revenues	$ 2,474,979	$ 2,451,081	$ 4,925,235	$ 4,847,648
Contract assets	21,724		21,724		$ 30,758
Deferred revenue	164,732		$ 164,732		$ 182,034
Customer Contracts | Minimum
Contract Assets and Liabilities [Line Items]
Finite-lived intangible asset, useful life			3 years
Customer Contracts | Maximum
Contract Assets and Liabilities [Line Items]
Finite-lived intangible asset, useful life			5 years
Broadband [Member]
Contract Assets and Liabilities [Line Items]
Revenues	920,363	806,250	$ 1,805,892	1,581,823
Pay TV [Member]
Contract Assets and Liabilities [Line Items]
Revenues	952,526	1,018,426	1,899,587	2,035,756
Telephony [Member]
Contract Assets and Liabilities [Line Items]
Revenues	117,322	150,232	242,352	304,696
Business Services and Wholesale [Member]
Contract Assets and Liabilities [Line Items]
Revenues	365,564	357,806	730,094	708,495
Advertising and News [Member]
Contract Assets and Liabilities [Line Items]
Revenues	96,631	114,450	202,171	209,188
Mobile [Member]
Contract Assets and Liabilities [Line Items]
Revenues	19,866	0	38,222	0
Products And Services, Other [Member]
Contract Assets and Liabilities [Line Items]
Revenues	2,707	3,917	6,917	7,690
Franchise [Member]
Contract Assets and Liabilities [Line Items]
Franchise fees and other taxes and fees	$ 65,280	$ 63,920	$ 130,190	$ 128,156

Earnings Per Share (Details)

Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities	28,514	1,292	24,362	6,350
Basic weighted average common shares (in thousands)	587,587	668,031	604,500	681,703
Weighted Average Number of Shares Outstanding, Diluted	589,466	668,648	606,597	682,014
Performance stock units and restricted stock whose performance metrics have not been met and are not included in diluted weighted average shares outstanding	8,943	0	7,758	0
Restricted Stock Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	22	51	18	26
Equity Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	1,857	566	2,079	285

RESTRUCTURING AND OTHER EXPEN_3

RESTRUCTURING AND OTHER EXPENSE (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Reserve [Roll Forward]
Accrual, beginning balance			$ 4,008
Restructuring Charges			2,059
Payments for Restructuring			3,452
Accrual, ending balance	$ 2,615		2,615
Cumulative restructuring costs	436,984		436,984
Transaction costs	88	$ 574	577	$ 970
Restructuring expense relating to right of use operating leases	611	$ 147	2,316	$ 8,696
2019 Restructuring
Restructuring Reserve [Roll Forward]
Cumulative restructuring costs	45,895		45,895
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Accrual, beginning balance			1,676
Restructuring Charges			0
Payments for Restructuring			1,639
Accrual, ending balance	37		37
Employee Severance [Member] | 2019 Restructuring
Restructuring Reserve [Roll Forward]
Accrual, beginning balance			37,946
Restructuring Charges			3,180
Payments for Restructuring			18,186
Accrual, ending balance	22,940		22,940
Employee Severance [Member] | 2020 Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring Charges			40,128
Accrual, ending balance	29,735		29,735
Facility Realignment and Other Costs [Member]
Restructuring Reserve [Roll Forward]
Accrual, beginning balance			2,332
Restructuring Charges			2,059
Payments for Restructuring			1,813
Accrual, ending balance	$ 2,578		$ 2,578

LEASES - Narrative (Details)

LEASES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 270,592		$ 270,592		$ 280,340
Operating Lease, Liability, Current	40,440		40,440		38,836
Operating Lease, Liability, Noncurrent	259,297		259,297		269,062
Finance Lease, Right-of-Use Asset	137,370		137,370		70,339
Finance Lease, Liability, Current	49,478		49,478		22,017
Finance Lease, Liability, Noncurrent	86,571		86,571		$ 47,403
Operating Lease Expense, Net	14,849	$ 14,948	29,853	$ 30,226
Finance Lease, Right-of-Use Asset, Amortization	6,960	1,630	11,420	3,192
Finance Lease, Interest Expense	1,477	388	2,504	746
Finance Lease, Cost	8,437	2,018	13,924	3,938
Finance And Operating Lease, Lessee Expense	$ 23,286	$ 16,966	43,777	34,164
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability			15,430	43,441
Finance Lease, Interest Payment on Liability			2,504	746
Operating Lease, Payments			$ 32,126	$ 32,481
Operating Lease, Weighted Average Remaining Lease Term	9 years 3 months 18 days	9 years 7 months 6 days	9 years 3 months 18 days	9 years 7 months 6 days
Finance Lease, Weighted Average Remaining Lease Term	2 years 10 months 24 days	4 years 7 months 6 days	2 years 10 months 24 days	4 years 7 months 6 days
Operating Lease, Weighted Average Discount Rate, Percent	5.86%	6.06%	5.86%	6.06%
Finance Lease, Weighted Average Discount Rate, Percent	5.66%	5.86%	5.66%	5.86%

LEASES - Future Minimum Lease P

LEASES - Future Minimum Lease Payments (Details) $ in Thousands	Jun. 30, 2020USD ($)
Finance Lease, Liability, Payments, Due Next Twelve Months	$ 30,527
Finance Lease, Liability, Payments, Due Year Two	50,543
Finance Lease, Liability, Payments, Due Year Three	46,298
Finance Lease, Liability, Payments, Due Year Four	15,501
Finance Lease, Liability, Payments, Due Year Five	3,413
Finance Lease, Liability, Payments, Due after Year Five	300
Finance Lease, Liability, Payment, Due, Total	146,582
Finance Leases, Future Minimum Payments, Interest Included in Payments	10,533
Finance Leases, Future Minimum Payments, Present Value of Net Minimum Payments	136,049
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	27,389
Lessee, Operating Lease, Liability, Payments, Due Year Two	43,615
Lessee, Operating Lease, Liability, Payments, Due Year Three	49,668
Lessee, Operating Lease, Liability, Payments, Due Year Four	39,694
Lessee, Operating Lease, Liability, Payments, Due Year Five	35,261
Lessee, Operating Lease, Liability, Payments, Due after Year Five	200,665
Lessee, Operating Lease, Liability, Payments, Due, Total	396,292
Operating Leases, Future Minimum Payments, Interest Included in Payments	96,555
Operating Leases, Future Minimum Payments, Present Value of Net Minimum Payments	$ 299,737

INTANGIBLE ASSETS - Summary of

INTANGIBLE ASSETS - Summary of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 7,152,025	$ 7,151,788
Accumulated Amortization	(4,054,809)	(3,670,679)
Net Carrying Amount	3,097,216	3,481,109
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	6,017,524	6,017,524
Accumulated Amortization	(3,174,454)	(2,843,561)
Net Carrying Amount	2,843,070	3,173,963
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,081,083	1,081,083
Accumulated Amortization	(846,929)	(798,484)
Net Carrying Amount	234,154	282,599
Other amortizable intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	53,418	53,181
Accumulated Amortization	(33,426)	(28,634)
Net Carrying Amount	$ 19,992	$ 24,547
Minimum | Customer Relationships [Member]
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 intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	1 year
Maximum | Customer Relationships [Member]
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 intangibles
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	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 183,031	$ 201,279	$ 384,130	$ 401,898

INTANGIBLE ASSETS - Goodwill (D

INTANGIBLE ASSETS - Goodwill (Details) - USD ($) $ in Thousands	1 Months Ended
	Jul. 30, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 8,142,309
Goodwill	$ 8,142,309	$ 8,142,309

DEBT - Credit Silo Combination

DEBT - Credit Silo Combination (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Principal amount	$ 26,499,564	$ 24,773,440
Long-term debt	26,185,687	24,420,285
Face Amount of Senior Notes and Senior Guaranteed Notes	17,382,497	15,657,497
Carrying amount of Senior Notes and Senior Guaranteed Notes	17,218,415	15,476,496
Face amount of Credit Facility Debt	7,161,563	7,190,438
Carrying value of Credit Facility Debt	7,122,458	7,148,287
Finance Lease, Liability	136,049	69,420
Long-term Debt, Current Maturities	1,859,290	170,682
Finance Lease, Liability, Current	49,478	22,017
Long-term Debt, Excluding Current Maturities	24,326,397	24,249,603
Principal Amount	26,499,564	24,773,440
Loans Payable
Debt Instrument [Line Items]
Principal amount	45,209	83,415
Long-term debt	45,209	83,415
Principal Amount	45,209	83,415
Credit Facility [Domain]
Debt Instrument [Line Items]
Principal amount	72,750	65,250
Long-term Debt, Current Maturities	72,750	65,250
Principal Amount	72,750	65,250
Short-term Debt
Debt Instrument [Line Items]
Principal amount	1,882,883	170,682
Long-term Debt, Current Maturities	1,859,290	170,682
Principal Amount	1,882,883	170,682
Senior guaranteed notes
Debt Instrument [Line Items]
Principal amount	1,095,825	0
Long-term Debt, Current Maturities	1,083,676	0
Principal Amount	1,095,825	0
CSC Holdings Senior Notes
Debt Instrument [Line Items]
Principal amount	619,621	0
Long-term Debt, Current Maturities	608,177	0
Principal Amount	619,621	0
Incremental Term Loan B-3 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 1,259,063	1,265,438
Stated interest rate	2.435%
Credit facility	$ 1,254,243	1,260,200
Principal Amount	1,259,063	1,265,438
CSC Holdings Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount	0	0
Line of Credit Facility, Maximum Borrowing Capacity	2,275,000
Credit facility	0	0
Principal Amount	$ 0	0
CSC Holdings Revolving Credit Facility | Secured Debt [Member] | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
CSC Holdings Term Loan B | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 2,910,000	2,925,000
Stated interest rate	2.435%
Credit facility	$ 2,897,887	2,911,729
Principal Amount	2,910,000	2,925,000
Incremental Term Loan B-5 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 2,992,500	3,000,000
Stated interest rate	2.685%
Credit facility	$ 2,970,328	2,976,358
Principal Amount	2,992,500	3,000,000
Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	1,699,566	1,699,566
Long-term debt	1,601,107	1,585,088
Principal Amount	1,699,566	1,699,566
Loans Payable
Debt Instrument [Line Items]
Principal amount	119,889	156,519
Long-term debt	107,658	140,994
Principal Amount	119,889	156,519
Senior Notes | 6.75% Notes due November 15, 2021
Debt Instrument [Line Items]
Principal amount	$ 1,000,000	1,000,000
Stated interest rate	6.75%
Outstanding debt	$ 984,412	979,178
Principal Amount	1,000,000	1,000,000
Senior Notes | 5.875% Notes due September 15, 2022
Debt Instrument [Line Items]
Principal amount	$ 649,024	649,024
Stated interest rate	5.875%
Outstanding debt	$ 608,861	600,849
Principal Amount	649,024	649,024
Senior Notes | 5.25% Notes due June 1, 2024
Debt Instrument [Line Items]
Principal amount	$ 750,000	750,000
Stated interest rate	5.25%
Outstanding debt	$ 690,331	683,940
Principal Amount	750,000	750,000
Senior Notes | CSC Holdings 7.750% Notes due July 15, 2025
Debt Instrument [Line Items]
Principal amount	$ 1,740	1,740
Stated interest rate	7.75%
Outstanding debt	$ 1,698	1,695
Principal Amount	1,740	1,740
Senior Notes | 10.875% Notes due October 15, 2025
Debt Instrument [Line Items]
Principal amount	$ 1,684,221	1,684,221
Stated interest rate	10.875%
Outstanding debt	$ 1,666,435	1,665,237
Principal Amount	1,684,221	1,684,221
Senior Notes | CSC Holdings 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Principal amount	$ 4,118	4,118
Stated interest rate	7.50%
Outstanding debt	$ 4,112	4,112
Principal Amount	4,118	4,118
Senior Notes | CSC Holdings 7.750% Notes due July 15, 2025
Debt Instrument [Line Items]
Principal amount	$ 617,881	617,881
Stated interest rate	7.75%
Outstanding debt	$ 606,479	605,583
Principal Amount	617,881	617,881
Senior Notes | CSC Holdings 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Principal amount	$ 1,045,882	1,045,882
Stated interest rate	7.50%
Outstanding debt	$ 1,044,349	1,044,278
Principal Amount	1,045,882	1,045,882
Senior Notes | CSC Holdings 5.750% Notes due January 15, 2030
Debt Instrument [Line Items]
Principal amount	$ 2,250,000	2,250,000
Stated interest rate	5.75%
Outstanding debt	$ 2,287,660	2,289,168
Principal Amount	2,250,000	2,250,000
Senior Notes | CSC Holdings 4.625% Notes due December 1, 2030
Debt Instrument [Line Items]
Principal amount	$ 625,000	0
Stated interest rate	4.625%
Outstanding debt	$ 622,176	0
Principal Amount	625,000	0
Secured Debt [Member] | CSC Holdings 5.375% Senior Guaranteed Notes due July 15, 2023
Debt Instrument [Line Items]
Principal amount	$ 1,095,825	1,095,825
Stated interest rate	5.375%
Outstanding debt	$ 1,083,676	1,081,879
Principal Amount	1,095,825	1,095,825
Secured Debt [Member] | CSC Holdings 5.500% Notes due May 15, 2026
Debt Instrument [Line Items]
Principal amount	$ 1,498,806	1,498,806
Stated interest rate	5.50%
Outstanding debt	$ 1,486,760	1,485,911
Principal Amount	1,498,806	1,498,806
Secured Debt [Member] | 6.625% Notes due October 15, 2025
Debt Instrument [Line Items]
Principal amount	$ 1,000,000	1,000,000
Stated interest rate	6.625%
Outstanding debt	$ 990,233	989,483
Principal Amount	1,000,000	1,000,000
Secured Debt [Member] | 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Principal amount	$ 1,310,000	1,310,000
Stated interest rate	5.50%
Outstanding debt	$ 1,305,688	1,305,430
Principal Amount	1,310,000	1,310,000
Secured Debt [Member] | 5.375% Senior Guaranteed Notes Due February 1, 2028
Debt Instrument [Line Items]
Principal amount	$ 1,000,000	1,000,000
Stated interest rate	5.375%
Outstanding debt	$ 993,116	992,757
Principal Amount	1,000,000	1,000,000
Secured Debt [Member] | CSC Holdings 6.500% Notes due February 1, 2029
Debt Instrument [Line Items]
Principal amount	$ 1,750,000	1,750,000
Stated interest rate	6.50%
Outstanding debt	$ 1,747,118	1,746,996
Principal Amount	1,750,000	1,750,000
Secured Debt [Member] | CSC Holdings 4.125% Notes due December 1, 2030
Debt Instrument [Line Items]
Principal amount	$ 1,100,000	0
Stated interest rate	4.125%
Outstanding debt	$ 1,095,311	0
Principal Amount	1,100,000	0
Long-term Debt
Debt Instrument [Line Items]
Principal amount	24,616,681	24,602,758
Long-term Debt, Excluding Current Maturities	24,326,397	24,249,603
Principal Amount	$ 24,616,681	$ 24,602,758

DEBT - Schedule of Exchange Agr

DEBT - Schedule of Exchange Agreement (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Principal amount	$ 26,499,564	$ 24,773,440

DEBT - CSC Holdings Credit Faci

DEBT - CSC Holdings Credit Facilities (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended			6 Months Ended
	Jul. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Debt Instrument [Line Items]
Principal amount		$ 26,499,564			$ 26,499,564		$ 24,773,440
Redemption of debt amount					0	$ 2,462,692
Loss on extinguishment of debt and write-off of deferred financing costs		0		$ 1,194	0	159,096
Proceeds from credit facility debt, net of discounts					200,000	1,940,000
Repayments of line of credit					228,875	602,830
Loss on extinguishment of debt and write-off of deferred financing costs		0		(1,194)	0	(159,096)
CSC Holdings
Debt Instrument [Line Items]
Redemption of debt amount					0	2,462,692
Loss on extinguishment of debt and write-off of deferred financing costs	$ (62,096)	0		1,194	0	159,096
Cash distributions to shareholders		652,383	$ 720,350
Proceeds from credit facility debt, net of discounts					200,000	1,940,000
Repayments of line of credit					228,875	602,830
Loss on extinguishment of debt and write-off of deferred financing costs	$ 62,096	0		(1,194)	0	(159,096)
Retained Earnings [Member] | CSC Holdings
Debt Instrument [Line Items]
Cash distributions to shareholders			$ 24,317
CSC Holdings Term Loan Facility
Debt Instrument [Line Items]
Loss on extinguishment of debt and write-off of deferred financing costs				1,194		4,430
Loss on extinguishment of debt and write-off of deferred financing costs				$ (1,194)		$ (4,430)
5.5% Notes due April 15, 2027 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount		$ 1,310,000			$ 1,310,000		1,310,000
Stated interest rate		5.50%			5.50%
Secured Debt [Member] | CSC Holdings Revolving Credit Facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate					2.25%
Secured Debt [Member] | Incremental Term Loan B-3
Debt Instrument [Line Items]
Principal amount		$ 1,259,063			$ 1,259,063		1,265,438
Secured Debt [Member] | Incremental Term Loan B-5
Debt Instrument [Line Items]
Principal amount		2,992,500			$ 2,992,500		3,000,000
Secured Debt [Member] | CSC Holdings Revolving Credit Facility - Non-Extend Creditors [Member] | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate					325.00%
Revolving Credit Facility | CSC Holdings Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		2,275,000			$ 2,275,000
Principal amount		$ 0			$ 0		$ 0

DEBT - Cequel Credit Facilities

DEBT - Cequel Credit Facilities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Line of Credit Facility [Line Items]
Redemption of debt amount			$ 0	$ 2,462,692
Loss on extinguishment of debt and write-off of deferred financing costs	$ 0	$ 1,194	0	$ 159,096
Principal amount	$ 26,499,564		$ 26,499,564		$ 24,773,440

DEBT - Credit Facilities Outsta

DEBT - Credit Facilities Outstanding (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt	$ 26,185,687,000	$ 24,420,285,000
Principal Amount	26,499,564,000	24,773,440,000
CSC Holdings Revolving Credit Facility, Portion Due October 9, 2020 | Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	200,000
CSC Holdings Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	2,275,000,000
Credit facility, Carrying Value	0	0
Letters of credit outstanding	141,949,000
Line of credit facility, remaining borrowing capacity	2,333,051,000
Principal Amount	$ 0	0
CSC Holdings Term Loan B | Secured Debt [Member]
Debt Instrument [Line Items]
Stated interest rate	2.435%
Credit facility, Carrying Value	$ 2,897,887,000	2,911,729,000
Principal Amount	$ 2,910,000,000	2,925,000,000
Incremental Term Loan B-3 | Secured Debt [Member]
Debt Instrument [Line Items]
Stated interest rate	2.435%
Credit facility, Carrying Value	$ 1,254,243,000	1,260,200,000
Principal Amount	1,259,063,000	1,265,438,000
Secured Debt [Member]
Debt Instrument [Line Items]
Long-term debt	1,601,107,000	1,585,088,000
Principal Amount	$ 1,699,566,000	$ 1,699,566,000

DEBT - Senior Guaranteed Notes

DEBT - Senior Guaranteed Notes and Senior Notes and Debentures (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Debt Instrument [Line Items]
Principal amount	$ 26,499,564		$ 26,499,564		$ 24,773,440
Face Amount of Senior Notes and Senior Guaranteed Notes	17,382,497		17,382,497		15,657,497
Carrying amount of Senior Notes and Senior Guaranteed Notes	17,218,415		17,218,415		15,476,496
Face amount of Credit Facility Debt	7,161,563		7,161,563		7,190,438
Carrying value of Credit Facility Debt	7,122,458		7,122,458		7,148,287
Finance Lease, Liability	136,049		136,049		69,420
Long-term debt	26,185,687		26,185,687		24,420,285
Long-term Debt, Current Maturities	1,859,290		1,859,290		170,682
Finance Lease, Liability, Current	49,478		49,478		22,017
Long-term Debt, Excluding Current Maturities	24,326,397		24,326,397		24,249,603
Repayments of line of credit			228,875	$ 602,830
Loss on extinguishment of debt and write-off of deferred financing costs	0	$ (1,194)	0	$ (159,096)
Loans Payable
Debt Instrument [Line Items]
Principal amount	45,209		45,209		83,415
Long-term debt	45,209		45,209		83,415
Short-term Debt
Debt Instrument [Line Items]
Principal amount	1,882,883		1,882,883		170,682
Long-term Debt, Current Maturities	1,859,290		1,859,290		170,682
Credit Facility [Domain]
Debt Instrument [Line Items]
Principal amount	72,750		72,750		65,250
Long-term Debt, Current Maturities	72,750		72,750		65,250
CSC Holdings Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount	0		0		0
Line of Credit Facility, Maximum Borrowing Capacity	2,275,000		2,275,000
Credit facility	0		0		0
Incremental Term Loan B-3 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 1,259,063		$ 1,259,063		1,265,438
Stated interest rate	2.435%		2.435%
Credit facility	$ 1,254,243		$ 1,254,243		1,260,200
Incremental Term Loan B-5 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 2,992,500		$ 2,992,500		3,000,000
Stated interest rate	2.685%		2.685%
Credit facility	$ 2,970,328		$ 2,970,328		2,976,358
Loans Payable
Debt Instrument [Line Items]
Principal amount	119,889		119,889		156,519
Long-term debt	107,658		107,658		140,994
Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	1,699,566		1,699,566		1,699,566
Long-term debt	$ 1,601,107		$ 1,601,107		1,585,088
Secured Debt [Member] | 6.625% Notes due October 15, 2025
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.625%		6.625%
Principal amount	$ 1,000,000		$ 1,000,000		1,000,000
Carrying Amount	$ 990,233		$ 990,233		989,483
Secured Debt [Member] | 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.50%		5.50%
Principal amount	$ 1,310,000		$ 1,310,000		1,310,000
Carrying Amount	$ 1,305,688		$ 1,305,688		1,305,430
Secured Debt [Member] | 5.375% Senior Guaranteed Notes Due February 1, 2028
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.375%		5.375%
Principal amount	$ 1,000,000		$ 1,000,000		1,000,000
Carrying Amount	$ 993,116		$ 993,116		992,757
Secured Debt [Member] | CSC Holdings 5.375% Senior Guaranteed Notes due July 15, 2023
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.375%		5.375%
Principal amount	$ 1,095,825		$ 1,095,825		1,095,825
Carrying Amount	$ 1,083,676		$ 1,083,676		1,081,879
Secured Debt [Member] | CSC Holdings 5.500% Notes due May 15, 2026
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.50%		5.50%
Principal amount	$ 1,498,806		$ 1,498,806		1,498,806
Carrying Amount	$ 1,486,760		$ 1,486,760		1,485,911
Secured Debt [Member] | CSC Holdings 6.500% Notes due February 1, 2029
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.50%		6.50%
Principal amount	$ 1,750,000		$ 1,750,000		1,750,000
Carrying Amount	$ 1,747,118		$ 1,747,118		1,746,996
Secured Debt [Member] | CSC Holdings 4.125% Notes due December 1, 2030
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.125%		4.125%
Principal amount	$ 1,100,000		$ 1,100,000		0
Carrying Amount	1,095,311		1,095,311		0
Long-term Debt
Debt Instrument [Line Items]
Principal amount	24,616,681		24,616,681		24,602,758
Long-term Debt, Excluding Current Maturities	$ 24,326,397		$ 24,326,397		24,249,603
Senior Notes | 6.75% Notes due November 15, 2021
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.75%		6.75%
Principal amount	$ 1,000,000		$ 1,000,000		1,000,000
Carrying Amount	$ 984,412		$ 984,412		979,178
Senior Notes | 5.875% Notes due September 15, 2022
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.875%		5.875%
Principal amount	$ 649,024		$ 649,024		649,024
Carrying Amount	$ 608,861		$ 608,861		600,849
Senior Notes | 5.25% Notes due June 1, 2024
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.25%		5.25%
Principal amount	$ 750,000		$ 750,000		750,000
Carrying Amount	$ 690,331		$ 690,331		683,940
Senior Notes | CSC Holdings 7.750% Notes due July 15, 2025
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.75%		7.75%
Principal amount	$ 1,740		$ 1,740		1,740
Carrying Amount	$ 1,698		$ 1,698		1,695
Senior Notes | 10.875% Notes due October 15, 2025
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	10.875%		10.875%
Principal amount	$ 1,684,221		$ 1,684,221		1,684,221
Carrying Amount	$ 1,666,435		$ 1,666,435		1,665,237
Senior Notes | CSC Holdings 7.750% Notes due July 15, 2025
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.75%		7.75%
Principal amount	$ 617,881		$ 617,881		617,881
Carrying Amount	$ 606,479		$ 606,479		605,583
Senior Notes | CSC Holdings 5.750% Notes due January 15, 2030
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.75%		5.75%
Principal amount	$ 2,250,000		$ 2,250,000		2,250,000
Carrying Amount	$ 2,287,660		$ 2,287,660		2,289,168
Senior Notes | CSC Holdings 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.50%		7.50%
Principal amount	$ 4,118		$ 4,118		4,118
Carrying Amount	$ 4,112		$ 4,112		4,112
Senior Notes | CSC Holdings 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.50%		7.50%
Principal amount	$ 1,045,882		$ 1,045,882		1,045,882
Carrying Amount	$ 1,044,349		$ 1,044,349		$ 1,044,278

DEBT - Senior Guaranteed Notes,

DEBT - Senior Guaranteed Notes, Senior Secured Notes, and Senior Notes and Debentures (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Debt Instrument [Line Items]
Principal amount	$ (26,499,564,000)		$ (26,499,564,000)		$ (24,773,440,000)
Long-term debt	26,185,687,000		26,185,687,000		24,420,285,000
Loss on extinguishment of debt and write-off of deferred financing costs	0	$ 1,194,000	0	$ 159,096,000
Stock Issued During Period, Value, New Issues		$ 244,000
Collateralized Agreements	37,581,000		37,581,000
Long-term Debt, Current Maturities	(1,859,290,000)		(1,859,290,000)		(170,682,000)
Notes Payable that will be reclassed to collateralized debt upon maturity	59,451,000		59,451,000
Senior guaranteed notes
Debt Instrument [Line Items]
Principal amount	(1,095,825,000)		(1,095,825,000)		0
Long-term Debt, Current Maturities	(1,083,676,000)		(1,083,676,000)		0
CSC Holdings Senior Notes
Debt Instrument [Line Items]
Principal amount	(619,621,000)		(619,621,000)		0
Long-term Debt, Current Maturities	(608,177,000)		(608,177,000)		0
CSC Holdings Revolving Credit Facility, Portion Due October 9, 2020 | Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	200,000		200,000
Senior Notes | CSC Holdings 5.750% Notes due January 15, 2030
Debt Instrument [Line Items]
Principal amount	$ (2,250,000,000)		$ (2,250,000,000)		(2,250,000,000)
Stated interest rate	5.75%		5.75%
Outstanding debt	$ 2,287,660,000		$ 2,287,660,000		2,289,168,000
Secured Debt [Member] | 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Principal amount	$ (1,310,000,000)		$ (1,310,000,000)		(1,310,000,000)
Stated interest rate	5.50%		5.50%
Outstanding debt	$ 1,305,688,000		$ 1,305,688,000		1,305,430,000
Long-term Debt
Debt Instrument [Line Items]
Principal amount	$ (24,616,681,000)		$ (24,616,681,000)		$ (24,602,758,000)

DEBT - Schedule of Gain (Loss)

DEBT - Schedule of Gain (Loss) on Debt Extinguishment (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 30, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Debt Instrument [Line Items]
Loss on extinguishment of debt and write-off of deferred financing costs		$ 0	$ 1,194	$ 0	$ 159,096
Loss on extinguishment of debt and write-off of deferred financing costs		0	(1,194)	0	(159,096)
CSC Holdings
Debt Instrument [Line Items]
Loss on extinguishment of debt and write-off of deferred financing costs	$ (62,096)	0	1,194	0	159,096
Loss on extinguishment of debt and write-off of deferred financing costs	$ 62,096	$ 0	(1,194)	$ 0	(159,096)
10.125% Notes due January 15, 2023
Debt Instrument [Line Items]
Loss on extinguishment of debt and write-off of deferred financing costs			0		154,666
Loss on extinguishment of debt and write-off of deferred financing costs			0		(154,666)
CSC Holdings Term Loan Facility
Debt Instrument [Line Items]
Loss on extinguishment of debt and write-off of deferred financing costs			1,194		4,430
Loss on extinguishment of debt and write-off of deferred financing costs			$ (1,194)		$ (4,430)

DEBT - Summary of Debt Maturiti

DEBT - Summary of Debt Maturities (Details) $ in Thousands	Jun. 30, 2020USD ($)
Debt Disclosure [Abstract]
2019	$ 1,782,180
2020	1,092,181
2021	728,667
2022	1,835,383
2023	822,889
Thereafter	$ 20,102,215

DERIVATIVE CONTRACTS AND COLL_3

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Derivative [Line Items]
Gain (loss) on derivative contracts, net	$ (152,061)	$ (49,624)	$ 287,800	$ (226,653)
Gain (loss) on investments and sale of affiliate interests, net	197,594	98,794	(257,302)	353,519
Loss on interest rate swap contracts, net	(33,735)	(26,900)	(88,567)	(50,572)
Long-term debt	26,185,687		26,185,687		$ 24,420,285
Notes related to derivative contracts
Derivative [Line Items]
Gain (loss) on derivative contracts, net	$ (152,061)	$ (49,624)	$ 287,800	$ (226,653)

DERIVATIVE CONTRACTS AND COLL_4

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Schedule of Interest Rate Derivatives (Details) - Interest Rate Swap	6 Months Ended
	Jun. 30, 2020USD ($)
Derivative Instrument Maturity Date 2020, 3 Month LIBOR minus 0.1075%
Derivative [Line Items]
Derivative, Notional Amount	$ 2,850,000,000
Basis spread	0.1075%
Derivative Instrument Maturity Date 2025, Fixed 1.53%
Derivative [Line Items]
Derivative, Notional Amount	$ 500,000,000
Fixed interest rate	1.53%
Derivative Instrument Maturity Date 2022, Fixed 2.733%
Derivative [Line Items]
Derivative, Notional Amount	$ 500,000,000
Fixed interest rate	2.733%
Derivative Instrument Maturity Date 2025, Fixed 1.625
Derivative [Line Items]
Derivative, Notional Amount	$ 500,000,000
Fixed interest rate	1.625%
Derivative Instrument Maturity Date 2026, Fixed 2.9155%
Derivative [Line Items]
Derivative, Notional Amount	$ 750,000,000
Fixed interest rate	2.9155%
Derivative Instrument Maturity Date 2026, Fixed 2.9025%
Derivative [Line Items]
Derivative, Notional Amount	$ 750,000,000
Fixed interest rate	2.9025%
Derivative Instrument Maturity Date 2025, Fixed 1.458%
Derivative [Line Items]
Derivative, Notional Amount	$ 500,000,000
Fixed interest rate	1.458%
Derivative Instruments Maturing Date 2025, Fixed 1.665% and 1.68% [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 1,500,000,000
Cash received from interest rate swap unwind	74,835,000
Derivative Instruments Maturing Date 2025, Fixed 1.53% and 1.625% [Member]
Derivative [Line Items]
Derivative, Notional Amount	1,000,000,000
Discount from fair value of interest rate swaps	5,689,000
Derivative Instrument Maturity Date 2025, Fixed 1.458% and Maturity Date 2022 Counterswap 2.733% [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 3,850,000,000

DERIVATIVE CONTRACTS AND COLL_5

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Location of Assets and Liabilities Within the Consolidated Balance Sheets (Details) - Not Designated as Hedging Instruments - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 225,791	$ 25,207
Liability Derivatives	316,932	256,135
Interest Rate Swap | Current derivative contracts
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	4,058	0
Interest Rate Swap | Short-term liabilities under derivative contracts
Derivatives, Fair Value [Line Items]
Liability Derivatives	4,016	469
Interest Rate Swap | Long-term liabilities under derivative contracts
Derivatives, Fair Value [Line Items]
Liability Derivatives	(309,396)	(160,871)
Prepaid forward contracts | Long-term derivative contracts
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	221,733	25,207
Prepaid forward contracts | Long-term liabilities under derivative contracts
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ (3,520)	$ (94,795)

DERIVATIVE CONTRACTS AND COLL_6

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Settlements of Collateralized Indebtedness (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Long-term debt	$ 26,185,687	$ 24,420,285

FAIR VALUE MEASUREMENT - Assets

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	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Inputs, Level 1 [Member]
Assets:
Investment securities	$ 1,674,395	$ 1,931,697
Level III
Liabilities:
Contingent consideration related to 2017 and 2018 acquisitions	1,767	7,250
Prepaid forward contracts | Fair Value, Inputs, Level 2 [Member]
Assets:
Derivative asset	221,733	25,207
Liabilities:
Derivative liability	3,520	94,795
Interest rate swap contracts | Fair Value, Inputs, Level 2 [Member]
Assets:
Derivative asset	4,058	0
Liabilities:
Derivative liability	313,412	161,340
Money market funds | Fair Value, Inputs, Level 1 [Member]
Assets:
Money market funds	$ 1,842,086	$ 563,704

FAIR VALUE MEASUREMENT - Fair V

FAIR VALUE MEASUREMENT - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	$ 26,049,638	$ 24,350,865
Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	27,098,673	25,892,634
CSC Holdings | Credit facility debt | Carrying Amount | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	7,122,458	7,148,287
CSC Holdings | Credit facility debt | Estimated Fair Value | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	7,161,563	7,190,438
CSC Holdings | Collateralized indebtedness | Carrying Amount | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	1,601,107	1,585,088
CSC Holdings | Collateralized indebtedness | Estimated Fair Value | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	1,696,376	1,611,095
CSC Holdings | Senior guaranteed notes | Carrying Amount | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	8,701,902	7,602,456
CSC Holdings | Senior guaranteed notes | Estimated Fair Value | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	9,094,711	8,220,518
CSC Holdings | Senior notes | Carrying Amount | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	8,516,513	7,874,040
CSC Holdings | Senior notes | Estimated Fair Value | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	9,037,404	8,728,870
CSC Holdings | Notes payable and supply chain financing | Carrying Amount | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	107,658	140,994
CSC Holdings | Notes payable and supply chain financing | Estimated Fair Value | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	$ 108,619	$ 141,713

INCOME TAXES - Income Tax Expen

INCOME TAXES - Income Tax Expense (Benefit) Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Decrease in Federal Taxable Income 163(j) Law Change due to Cares Act			$ 10,500
Allowable Business Interest Deduction in connection with CARES Act	50.00%		50.00%
Increase (Decrease) in Income Taxes Receivable			$ 12,000
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 170,303	$ 127,570	185,800	$ 79,786
CSC Holdings
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 170,302	$ 151,970	$ 185,453	$ 128,430

SHARE-BASED COMPENSATION - Narr

SHARE-BASED COMPENSATION - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Document Period End Date			Jun. 30, 2020
Carry Unit Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value (in dollars per unit)	$ 1.75		$ 1.75		$ 3.25
Share based compensation expense	$ 3,937	$ 7,861	$ 7,057	$ 14,334
2017 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance	35,000,000		35,000,000
2017 LTIP | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	$ 25,327	$ 7,817	$ 45,676	$ 15,134
Amended 2017 LTIP Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance	54,879,291		54,879,291

SHARE-BASED COMPENSATION - Carr

SHARE-BASED COMPENSATION - Carrying Unit Award Activity (Details) - Carry Unit Plan	6 Months Ended
	Jun. 30, 2020$ / sharesshares
Weighted Average Grant Date Fair Value
Balance at beginning of period, weighted average grant date fair value (in dollars per share) | $ / shares	$ 2.35
Vested weighted average grant date fair value (in dollars per share) | $ / shares	2.31
Forfeited weighted average grant date fair value (in dollars per share) | $ / shares	0.56
Balance at end of period, weighted average grant date fair value (in dollars per share) | $ / shares	$ 2.71
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares) | shares	37,518,750
Vested (in shares) | shares	(27,343,750)
Forfeited (in shares) | shares	(212,500)
Ending balance (in shares) | shares	9,962,500

SHARE-BASED COMPENSATION - Stoc

SHARE-BASED COMPENSATION - Stock Option Activity (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Weighted Average Exercise Price Per Share
Exercised, weighted average exercise price per share (in dollars per share)			$ 17.46
Risk-free interest rate			1.45%
Expected life (in years)			6 years 4 months 17 days
Dividend yield			0.00%
Volatility			28.46%
Grant date fair value			$ 7.74
Performance Based Vesting
Weighted Average Exercise Price Per Share
Risk-free interest rate			1.46%
Dividend yield			0.00%
Volatility			34.22%
Performance Based Vesting | Term Two
Weighted Average Exercise Price Per Share
Expected life (in years)			6 years
Performance Based Vesting | Term One
Weighted Average Exercise Price Per Share
Expected life (in years)			4 years
2017 LTIP
Weighted Average Exercise Price Per Share
Beginning balance (in dollars per share)			$ 19.12
Granted (in dollars per share)			28.32
Forfeited (in dollars per share)			21.44
Ending balance (in dollars per share)	$ 25.31		25.31
Options exercisable (in dollars per share)	$ 17.70		$ 17.70
Options outstanding, Weighted Average Remaining Contractual Term (in years)			9 years 1 month 20 days	8 years 8 months 26 days
Options exercisable, Weighted Average Remaining Contractual Term (in years)			7 years 2 months 1 day
Options outstanding, Aggregate Intrinsic Value	$ 49,108,141,000		$ 49,108,141,000		$ 112,915,000
Options exercisable, Aggregate Intrinsic Value	$ 3,848,578,000		$ 3,848,578,000
2017 LTIP | Shares Under Option
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Beginning balance (in shares)			14,083,741
Granted (in shares)			26,093,256
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period			209,105
Forfeited (in shares)			(1,749,476)
Ending balance (in shares)	38,218,416		38,218,416
Options exercisable (in shares)	788,053		788,053
Weighted Average Exercise Price Per Share
Share based compensation expense	$ 25,327,000	$ 7,817,000	$ 45,676,000	$ 15,134,000
Share based compensation - Unrecognized deferred compensation cost	200,745,000		$ 200,745,000
Expected time (in years) unrecogized compensation costs relating to share based awards will be recognized			2016-03
2017 LTIP | Performance Based Vesting
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted (in shares)			7,480,469
Weighted Average Exercise Price Per Share
Share based compensation expense	4,419,000		$ 8,320,000
Share based compensation - Unrecognized deferred compensation cost	71,127,000		$ 71,127,000
Expected time (in years) unrecogized compensation costs relating to share based awards will be recognized			2006-05
Grant date fair value			$ 10.65
2019 LTIP [Member] | Restricted Stock [Member]
Weighted Average Exercise Price Per Share
Share based compensation expense	$ 636,000		$ 1,212,000

SHARE-BASED COMPENSATION - Fair

SHARE-BASED COMPENSATION - Fair Value Assumptions For Stock Options (Details)	6 Months Ended
	Jun. 30, 2020$ / shares
Share-based Payment Arrangement [Abstract]
Risk-free interest rate	1.45%
Expected life (in years)	6 years 4 months 17 days
Dividend yield	0.00%
Volatility	28.46%
Grant date fair value	$ 7.74

AFFILIATE AND RELATED PARTY T_3

AFFILIATE AND RELATED PARTY TRANSACTIONS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Related Party Transaction [Line Items]
Related party expense	$ 520	$ 3,611	$ 3,162	$ 6,952

AFFILIATE AND RELATED PARTY T_4

AFFILIATE AND RELATED PARTY TRANSACTIONS - Revenue and Related Charges (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Related Party Transaction [Line Items]
Revenue	$ 3,379	$ 496	$ 6,867	$ 1,088
Operating expenses:
Programming and other direct costs	(1,738)	(2,087)	(3,927)	(3,774)
Other operating expenses, net	(2,161)	(2,020)	(6,102)	(4,266)
Operating expenses, net	(3,899)	(4,107)	(10,029)	(8,040)
Net charges	(520)	(3,611)	(3,162)	(6,952)
Capital Expenditures	$ 3,676	$ 2,536	$ 10,901	$ 5,890

AFFILIATE AND RELATED PARTY T_5

AFFILIATE AND RELATED PARTY TRANSACTIONS - Amounts Due From and Due to Related Parties (Details) - USD ($)	1 Months Ended	3 Months Ended				6 Months Ended		12 Months Ended	22 Months Ended	25 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Mar. 31, 2020	Jun. 30, 2020
Related Party Transaction [Line Items]
Treasury Stock, Shares, Acquired						6,935,257		10,457,772
Payments for Repurchase of Common Stock						$ 1,381,235,000	$ 1,199,953,000
Related party expense		$ 520,000		$ 3,611,000		$ 3,162,000	6,952,000
Shares repurchased (in shares)						56,956,374				157,653,766
Value of shares repurchased			$ 749,998,000	599,952,000	$ 600,001,000	$ 1,381,235,000			$ 3,568,109,000
Parent [Member]
Related Party Transaction [Line Items]
Value of shares repurchased			749,998,000	599,952,000	600,001,000
Additional Paid-in Capital [Member]
Related Party Transaction [Line Items]
Value of shares repurchased			749,686,000	599,703,000	599,707,000
Stock options | 2017 LTIP
Related Party Transaction [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross						26,093,256
Share based compensation expense		25,327,000		7,817,000		$ 45,676,000	15,134,000
CSC Holdings
Related Party Transaction [Line Items]
Cash distributions to shareholders		652,383,000	720,350,000
Cash distributions						1,372,733,000	1,229,489,000
Distribution Made to Limited Liability Company (LLC) Member, Non-cash Distributions Paid				(635,028,000)	(594,462,000)
Intercompany settlement		35,415,000	(150,602,000)
CSC Holdings | Parent [Member]
Related Party Transaction [Line Items]
Cash distributions to shareholders		652,383,000	720,350,000			(1,372,733,000)
Distribution Made to Limited Liability Company (LLC) Member, Non-cash Distributions Paid				(635,028,000)	(594,462,000)		1,229,490,000
Intercompany settlement		35,415,000	(150,602,000)
CSC Holdings | Retained Earnings [Member]
Related Party Transaction [Line Items]
Cash distributions to shareholders			24,317,000
Distribution Made to Limited Liability Company (LLC) Member, Non-cash Distributions Paid		(105,980,000)		(90,324,000)	(543,217,000)	130,297,000	633,541,000
CSC Holdings | Additional Paid-in Capital [Member]
Related Party Transaction [Line Items]
Cash distributions to shareholders			696,033,000
Distribution Made to Limited Liability Company (LLC) Member, Non-cash Distributions Paid		(546,403,000)		$ (544,704,000)	$ (51,245,000)	1,242,436,000	$ 595,949,000
Intercompany settlement		35,415,000	$ (150,602,000)			(115,187,000)
Affiliates
Related Party Transaction [Line Items]
Due from related parties and affiliates	$ 3,452,000	3,452,000				3,452,000		$ 6,774,000		$ 3,452,000
Due to related parties and affiliates	5,722,000	5,722,000				5,722,000		7,456,000		5,722,000
Affiliates | Altice Management Americas
Related Party Transaction [Line Items]
Due from related parties and affiliates	$ 432,000	432,000				432,000		4,076,000		432,000
Shares repurchased (in shares)	3,582,525
Value of shares repurchased	$ 84,906,000
Affiliates | Other Related Party
Related Party Transaction [Line Items]
Due from related parties and affiliates	3,020,000	3,020,000				3,020,000		2,698,000		3,020,000
Affiliates | Altice Management International
Related Party Transaction [Line Items]
Due to related parties and affiliates	$ 5,722,000	$ 5,722,000				$ 5,722,000		$ 7,456,000		$ 5,722,000

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) - USD ($)	1 Months Ended	6 Months Ended
	Jul. 30, 2020	Jun. 30, 2020	Jun. 30, 2019	Jul. 29, 2020
Proceeds from credit facility debt, net of discounts		$ 200,000,000	$ 1,940,000,000
Subsequent Event
Proceeds from Sale of Interest in Partnership Unit	$ 2,300,000,000
Proceeds From Sale Of Interest In Partnership Unit to Pay Debt				$ 1,100,000,000
Subsequent Event | Cablevision Lightpath LLC [Member]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners				49.99%
Noncontrolling Interest, Ownership Percentage by Parent				50.01%
Enterprise value of subsidiary				$ 3,200,000,000
New Jersey cable assets [Member] | Subsequent Event
Consideration transfered	$ 150,000,000