Altice USA (ATUS) 10-Q 2 May 24 2024 FY Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2024	Apr. 26, 2024
Document and Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	001-38126
Entity Tax Identification Number	38-3980194
Entity Registrant Name	Altice USA, Inc.
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
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Class A Common Stock, par value $0.01 per share
Trading Symbol	ATUS
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		459,961,698
Entity Central Index Key	0001702780
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	FY
Amendment Flag	false

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current Assets:
Cash and cash equivalents	$ 284,450	$ 302,058
Restricted cash	284	280
Accounts receivable, trade (less allowance for doubtful accounts of $24,430 and $21,915, respectively)	314,691	357,597
Prepaid expenses and other current assets ($407 and $407 due from affiliates, respectively)	258,284	174,859
Derivative contracts	51,212	0
Total current assets	908,921	834,794
Property, plant and equipment, net of accumulated depreciation of $8,343,299 and $8,162,442, respectively	8,197,655	8,117,757
Right-of-use operating lease assets	244,712	255,545
Other assets	159,094	195,114
Amortizable intangibles, net of accumulated amortization of $5,958,636 and $5,874,612, respectively	1,175,517	1,259,335
Indefinite-lived cable television franchises	13,216,355	13,216,355
Goodwill	8,044,716	8,044,716
Total assets	31,946,970	31,923,616
Current Liabilities:
Accounts payable	963,226	936,950
Interest payable	304,389	274,507
Accrued employee related costs	135,478	182,146
Deferred revenue	87,295	85,018
Debt	344,117	359,407
Other current liabilities ($87,129 and $71,523 due to affiliates, respectively)	408,871	470,096
Total current liabilities	2,243,376	2,308,124
Other liabilities	229,796	221,249
Deferred tax liability	4,936,625	4,848,460
Right-of-use operating lease liability	254,576	264,647
Long-term debt, net of current maturities	24,717,702	24,715,554
Total liabilities	32,382,075	32,358,034
Commitments and contingencies (Note 15)
Stockholders' Deficiency:
Preferred stock, $0.01 par value, 100,000,000 shares authorized, no shares issued and outstanding	0	0
Paid-in capital	195,713	187,186
Accumulated deficit	(622,268)	(601,075)
Total stockholders' equity before accumulated other comprehensive Income and non-controlling interest	(421,946)	(409,329)
Treasury stock, at cost ($967,629 Class A common shares at March 31, 2024)	10	0
Accumulated other comprehensive loss	(9,208)	(12,851)
Total Altice USA stockholders' deficiency	(431,164)	(422,180)
Noncontrolling interests	(3,941)	(12,238)
Total stockholders' deficiency	(435,105)	(434,418)
Total liabilities and stockholders' deficiency	31,946,970	31,923,616
Common Class A
Stockholders' Deficiency:
Common stock	2,767	2,718
Common Class B
Stockholders' Deficiency:
Common stock	1,842	1,842
Common Class C
Stockholders' Deficiency:
Common stock	$ 0	$ 0

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
ASSETS
Accounts receivable, trade allowance for doubtful accounts	$ 24,430	$ 21,915
Prepaid Expense and Other Assets, Current	258,284	174,859
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(8,343,299)	(8,162,442)
Finite-Lived Intangible Assets, Accumulated Amortization	5,958,636	5,874,612
LIABILITIES AND STOCKHOLDERS' DEFICIENCY
Other current liabilities ($87,129 and $71,523 due to affiliates, respectively)	$ 408,871	$ 470,096
Stockholders' Deficiency:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, shares outstanding (in shares)	275,737,556
Treasury Stock, Shares	967,629
Related Party
ASSETS
Prepaid Expense and Other Assets, Current	$ 407	$ 407
LIABILITIES AND STOCKHOLDERS' DEFICIENCY
Other current liabilities ($87,129 and $71,523 due to affiliates, respectively)	$ 87,129	$ 71,523
Common Class A
Stockholders' Deficiency:
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)	276,705,185	271,772,978
Common Class B
Stockholders' Deficiency:
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
Common stock, shares outstanding (in shares)	184,224,142	184,224,428
Common Class C
Stockholders' Deficiency:
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
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenue (including revenue from affiliates of $210 and $78, respectively) (See Note 14)	$ 2,250,935	$ 2,293,978
Operating expenses:
Programming and other direct costs (including charges from affiliates of $3,355 and $2,642, respectively) (See Note 14)	743,887	771,719
Other operating expenses (including charges from affiliates of $12,289 and $4,676, respectively) (See Note 14)	674,250	651,245
Restructuring, impairments and other operating items (See Note 7)	51,253	29,672
Depreciation and amortization (including impairments)	388,391	416,212
Total operating expenses	1,857,781	1,868,848
Operating income	393,154	425,130
Other income (expense):
Interest expense, net	(437,141)	(389,278)
Gain (Loss) on Investments	292	192,010
Loss on derivative contracts, net	0	(166,489)
Gain (loss) on interest rate swap contracts, net	42,303	(14,429)
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	(7,035)	4,393
Other income (loss), net	(1,545)	10,205
Total other income (expense)	(403,126)	(363,588)
Income (loss) before income taxes	(9,972)	61,542
Income tax expense	(2,924)	(30,372)
Net income (loss)	(12,896)	31,170
Net income attributable to noncontrolling interests	(8,297)	(5,305)
Net loss attributable to Altice USA stockholders	$ (21,193)	$ 25,865
Income (loss) per share:
Basic income (loss) per share	$ (0.05)	$ 0.06
Basic weighted average common shares (in thousands)	457,369	454,686
Diluted income (loss) per share	$ (0.05)	$ 0.06
Diluted weighted average common shares (in thousands)	457,369	455,594
Cash dividends declared per common share	$ 0	$ 0

CONSOLIDATED STATEMENTS OF OP_2

CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenues	$ 2,250,935	$ 2,293,978
Cost of Goods and Services Sold	(743,887)	(771,719)
Other Cost and Expense, Operating	(674,250)	(651,245)
Related Party
Revenues	210	78
Cost of Goods and Services Sold	(3,355)	(2,642)
Other Cost and Expense, Operating	(12,289)	(4,676)
CSC Holdings
Revenues	2,250,935	2,293,978
Cost of Goods and Services Sold	(743,887)	(771,719)
Other Cost and Expense, Operating	$ (674,250)	$ (651,245)

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (12,896)	$ 31,170
Defined benefit pension plans
Defined benefit pension plans	5,825	1,454
Applicable income taxes	(1,570)	(393)
Defined benefit pension plans, net of income taxes	4,255	1,061
Foreign currency translation adjustment	(612)	(190)
Other comprehensive income	3,643	871
Comprehensive income (loss)	(9,253)	32,041
Comprehensive income attributable to noncontrolling interests	(8,297)	(5,305)
Comprehensive income (loss) attributable to Altice USA, Inc. stockholders	$ (17,550)	$ 26,736

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	CSC Holdings	Parent [Member]	Parent [Member] CSC Holdings	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] CSC Holdings	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	AOCI Attributable to Parent [Member] CSC Holdings	Noncontrolling Interest [Member]	Noncontrolling Interest [Member] CSC Holdings	Treasury Stock, Common	Common Class A Common Stock	Common Class B Common Stock
Beginning balance at Dec. 31, 2022	$ (503,912)		$ (475,211)		$ 182,701		$ (654,273)	$ (8,201)		$ (28,701)		$ 0	$ 2,719	$ 1,843
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss attributable to Altice USA stockholders	25,865	$ 25,865	25,865	$ 25,865		$ 25,865	25,865
Net income attributable to noncontrolling interests	(5,305)	(5,305)								(5,305)	$ (5,305)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	(1,061)	(1,061)	(1,061)	(1,061)				1,061	$ (1,061)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(190)	(190)	(188)	(188)				(188)	(188)	(2)	(2)
Share-based compensation benefit (equity classified)	(8,718)	(8,718)	(8,718)	(8,718)	(8,718)	(8,718)
Noncontrolling Interest, Change in Redemption Value	(22,193)	(22,193)	(14,166)	(14,166)	(14,166)	(14,166)				(8,027)	(8,027)
Other adjustment to equity (deficiency)	(82)	(82)	(82)	(82)	(67)	(82)							(15)
Ending balance at Mar. 31, 2023	(502,864)		(471,439)		159,750		(628,408)	(7,328)		(31,425)		0	2,704	1,843
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated deficit	(601,075)
Beginning balance at Dec. 31, 2023	(434,418)		(422,180)		187,186		(601,075)	(12,851)		(12,238)		0	2,718	1,842
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss attributable to Altice USA stockholders	(21,193)	(21,193)	(21,193)	(21,193)		(21,193)	(21,193)
Net income attributable to noncontrolling interests	(8,297)	(8,297)								(8,297)	$ (8,297)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	(4,255)	(4,255)	(4,255)	(4,255)				4,255	(4,255)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(612)	(612)	(612)	(612)				(612)	$ (612)
Share-based compensation benefit (equity classified)	6,484	$ 6,484	6,484	$ 6,484	6,484	$ 6,484
Other adjustment to equity (deficiency)	2,082		2,082		2,043							(10)	49
Ending balance at Mar. 31, 2024	(435,105)		$ (431,164)		$ 195,713		$ (622,268)	$ (9,208)		$ (3,941)		$ (10)	$ 2,767	$ 1,842
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated deficit	$ (622,268)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net income (loss)	$ (12,896)	$ 31,170
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization (including impairments)	388,391	416,212
Loss (gain) on investments and sale of affiliate interests, net	(292)	(192,010)
Loss on derivative contracts, net	0	166,489
Loss (gain) on extinguishment of debt and write-off of deferred financing costs	7,035	(4,393)
Amortization of deferred financing costs and discounts (premiums) on indebtedness	6,893	10,719
Share-based compensation	13,757	(2,623)
Deferred income taxes	86,595	(57,248)
Decrease in right-of-use assets	11,488	11,324
Provision for doubtful accounts	21,998	20,259
Other	1,510	316
Change in operating assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	20,908	26,364
Prepaid expenses and other assets	(85,655)	(45,931)
Amounts due from and due to affiliates	15,606	10,084
Accounts payable and accrued liabilities	(64,859)	(20,577)
Deferred revenue	3,056	13,833
Interest rate swap contracts	(13,874)	32,858
Net cash provided by operating activities	399,661	416,846
Cash flows from investing activities:
Capital expenditures	(336,095)	(582,897)
Other, net	318	(198)
Net cash used in investing activities	(335,777)	(583,095)
Cash flows from financing activities:
Proceeds from long-term debt	2,950,000	350,000
Repayment of debt	(2,967,306)	(268,936)
Proceeds from derivative contracts in connection with the settlement of collateralized debt	0	38,902
Principal payments on finance lease obligations	(35,396)	(37,861)
Payment related to acquisition of a noncontrolling interest	(7,261)	0
Additions to deferred financing costs	(17,138)	0
Other, net	(3,775)	(700)
Net cash provided by (used in) financing activities	(80,876)	81,405
Net decrease in cash and cash equivalents	(16,992)	(84,844)
Effect of exchange rate changes on cash and cash equivalents	(612)	(190)
Net decrease in cash and cash equivalents	(17,604)	(85,034)
Cash, cash equivalents and restricted cash at beginning of year	302,338	305,751
Cash, cash equivalents and restricted cash at end of period	$ 284,734	$ 220,717

CSC HOLDINGS - CONSOLIDATED BAL

CSC HOLDINGS - CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current Assets:
Cash and cash equivalents	$ 284,450	$ 302,058
Restricted cash	284	280
Accounts receivable, trade (less allowance for doubtful accounts of $24,430 and $21,915, respectively)	314,691	357,597
Prepaid expenses and other current assets ($407 and $407 due from affiliates, respectively)	258,284	174,859
Derivative contracts	51,212	0
Total current assets	908,921	834,794
Property, plant and equipment, net of accumulated depreciation of $8,343,299 and $8,162,442, respectively	8,197,655	8,117,757
Right-of-use operating lease assets	244,712	255,545
Other assets	159,094	195,114
Amortizable intangibles, net of accumulated amortization of $5,958,636 and $5,874,612, respectively	1,175,517	1,259,335
Indefinite-lived cable television franchises	13,216,355	13,216,355
Goodwill	8,044,716	8,044,716
Total assets	31,946,970	31,923,616
Current Liabilities:
Accounts payable	963,226	936,950
Interest payable	304,389	274,507
Accrued employee related costs	135,478	182,146
Deferred revenue	87,295	85,018
Debt	344,117	359,407
Other current liabilities ($87,129 and $71,523 due to affiliates, respectively)	408,871	470,096
Total current liabilities	2,243,376	2,308,124
Other liabilities	229,796	221,249
Deferred tax liability	4,936,625	4,848,460
Right-of-use operating lease liability	254,576	264,647
Long-term debt, net of current maturities	24,717,702	24,715,554
Total liabilities	32,382,075	32,358,034
Commitments and contingencies (Note 15)
Limited Liability Company (LLC) Members' Equity [Abstract]
Accumulated other comprehensive income (loss)	(9,208)	(12,851)
Noncontrolling interests	(3,941)	(12,238)
Total liabilities and stockholders' deficiency	31,946,970	31,923,616
CSC Holdings
Current Assets:
Cash and cash equivalents	284,444	302,051
Restricted cash	284	280
Accounts receivable, trade (less allowance for doubtful accounts of $24,430 and $21,915, respectively)	314,691	357,597
Prepaid expenses and other current assets ($407 and $407 due from affiliates, respectively)	258,284	174,859
Derivative contracts	51,212	0
Total current assets	908,915	834,787
Property, plant and equipment, net of accumulated depreciation of $8,343,299 and $8,162,442, respectively	8,197,655	8,117,757
Right-of-use operating lease assets	244,712	255,545
Other assets	159,094	195,114
Amortizable intangibles, net of accumulated amortization of $5,958,636 and $5,874,612, respectively	1,175,517	1,259,335
Indefinite-lived cable television franchises	13,216,355	13,216,355
Goodwill		8,044,716
Total assets	31,946,964	31,923,609
Current Liabilities:
Accounts payable	963,226	936,950
Interest payable	304,389	274,507
Accrued employee related costs	135,478	182,146
Deferred revenue	87,295	85,018
Debt	344,117	359,407
Other current liabilities ($87,129 and $71,523 due to affiliates, respectively)	408,871	470,097
Total current liabilities	2,243,376	2,308,125
Other liabilities		221,249
Deferred tax liability	4,940,125	4,851,959
Right-of-use operating lease liability	254,576	264,647
Long-term debt, net of current maturities	24,717,702	24,715,554
Total liabilities	32,385,575	32,361,534
Commitments and contingencies (Note 15)
Limited Liability Company (LLC) Members' Equity [Abstract]
Member's Deficiency	(425,462)	(412,836)
Accumulated other comprehensive income (loss)	(9,208)	(12,851)
Total member's deficiency	(434,670)	(425,687)
Noncontrolling interests	(3,941)	(12,238)
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest, Total	(438,611)	(437,925)
Total liabilities and stockholders' deficiency	$ 31,946,964	$ 31,923,609

CSC HOLDINGS - CONSOLIDATED B_2

CSC HOLDINGS - CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Accounts Receivable, Allowance for Credit Loss, Current	$ (24,430)	$ (21,915)
Prepaid Expense and Other Assets, Current	258,284	174,859
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(8,343,299)	(8,162,442)
Amortizable intangible assets, accumulated amortization	5,958,636	5,874,612
Related Party
Prepaid Expense and Other Assets, Current	407	407
CSC Holdings
Accounts Receivable, Allowance for Credit Loss, Current		(21,915)
Prepaid Expense and Other Assets, Current	$ 258,284	174,859
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment		(8,162,442)
Amortizable intangible assets, accumulated amortization		$ 5,874,612
Members' Equity	100	100
Common Unit, Outstanding	100	100
CSC Holdings | Related Party
Prepaid Expense and Other Assets, Current		$ 407

CSC HOLDINGS - CONSOLIDATED STA

CSC HOLDINGS - CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue (including revenue from affiliates of $210 and $78, respectively) (See Note 14)	$ 2,250,935	$ 2,293,978
Operating expenses:
Programming and other direct costs (including charges from affiliates of $3,355 and $2,642, respectively) (See Note 14)	743,887	771,719
Other operating expenses (including charges from affiliates of $12,289 and $4,676, respectively) (See Note 14)	674,250	651,245
Restructuring, impairments and other operating items (See Note 7)	51,253	29,672
Depreciation and amortization (including impairments)	388,391	416,212
Total operating expenses	1,857,781	1,868,848
Operating income	393,154	425,130
Other income (expense):
Interest expense, net	(437,141)	(389,278)
Gain (Loss) on Investments	292	192,010
Loss on equity derivative contracts, net	0	(166,489)
Gain (loss) on interest rate swap contracts, net	42,303	(14,429)
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	(7,035)	4,393
Other income, net	(1,545)	10,205
Total other income (expense)	(403,126)	(363,588)
Income (loss) before income taxes	(9,972)	61,542
Income tax expense	(2,924)	(30,372)
Net income (loss)	(12,896)	31,170
Comprehensive income attributable to noncontrolling interests	(8,297)	(5,305)
Net income (loss) attributable to CSC Holdings, LLC sole member	(21,193)	25,865
CSC Holdings
Revenue (including revenue from affiliates of $210 and $78, respectively) (See Note 14)	2,250,935	2,293,978
Operating expenses:
Programming and other direct costs (including charges from affiliates of $3,355 and $2,642, respectively) (See Note 14)	743,887	771,719
Other operating expenses (including charges from affiliates of $12,289 and $4,676, respectively) (See Note 14)	674,250	651,245
Restructuring, impairments and other operating items (See Note 7)	51,253	29,672
Depreciation and amortization (including impairments)	388,391	416,212
Total operating expenses	1,857,781	1,868,848
Operating income	393,154	425,130
Other income (expense):
Interest expense, net	(437,141)	(389,278)
Gain (Loss) on Investments	292	192,010
Loss on equity derivative contracts, net	0	(166,489)
Gain (loss) on interest rate swap contracts, net	42,303	(14,429)
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	(7,035)	4,393
Other income, net	(1,545)	10,205
Total other income (expense)	(403,126)	(363,588)
Income (loss) before income taxes	(9,972)	61,542
Income tax expense	(2,924)	(30,372)
Net income (loss)	(12,896)	31,170
Comprehensive income attributable to noncontrolling interests	(8,297)	(5,305)
Net income (loss) attributable to CSC Holdings, LLC sole member	$ (21,193)	$ 25,865

CSC HOLDINGS - CONSOLIDATED S_2

CSC HOLDINGS - CONSOLIDATED STATEMENT OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenues	$ 2,250,935	$ 2,293,978
Cost of Goods and Services Sold	(743,887)	(771,719)
Other Cost and Expense, Operating	(674,250)	(651,245)
Related Party
Revenues	210	78
Cost of Goods and Services Sold	(3,355)	(2,642)
Other Cost and Expense, Operating	(12,289)	(4,676)
CSC Holdings
Revenues	2,250,935	2,293,978
Cost of Goods and Services Sold	(743,887)	(771,719)
Other Cost and Expense, Operating	$ (674,250)	$ (651,245)

CSC HOLDINGS - CONDENSED CONSOL

CSC HOLDINGS - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net income	$ (12,896)	$ 31,170
Defined benefit pension and postretirement plans:
Defined benefit pension plans	5,825	1,454
Applicable income taxes	(1,570)	(393)
Defined benefit pension plans, net of income taxes	4,255	1,061
Foreign currency translation adjustment	(612)	(190)
Other comprehensive income	3,643	871
Comprehensive income (loss)	(9,253)	32,041
Comprehensive income attributable to noncontrolling interests	(8,297)	(5,305)
Comprehensive income (loss) attributable to Altice USA, Inc. stockholders	(17,550)	26,736
CSC Holdings
Net income	(12,896)	31,170
Defined benefit pension and postretirement plans:
Defined benefit pension plans	5,825	1,454
Applicable income taxes	(1,570)	(393)
Defined benefit pension plans, net of income taxes	4,255	1,061
Foreign currency translation adjustment	(612)	(190)
Other comprehensive income	3,643	871
Comprehensive income (loss)	(9,253)	32,041
Comprehensive income attributable to noncontrolling interests	(8,297)	(5,305)
Comprehensive income (loss) attributable to Altice USA, Inc. stockholders	$ (17,550)	$ 26,736

CSC HOLDINGS - CONSOLIDATED S_3

CSC HOLDINGS - CONSOLIDATED STATEMENT OF MEMBER'S EQUITY - USD ($) $ in Thousands	Total	CSC Holdings	Parent [Member]	Parent [Member] CSC Holdings	Noncontrolling Interest [Member]	Noncontrolling Interest [Member] CSC Holdings	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] CSC Holdings	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	AOCI Attributable to Parent [Member] CSC Holdings
Accumulated other comprehensive loss											$ (8,201)
Membership equity before noncontrolling interest				$ (483,851)
Noncontrolling interests						$ (28,701)
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest		$ (512,552)
Member's Deficiency								$ (475,650)
Net income (loss) attributable to CSC Holdings, LLC sole member	$ 25,865	25,865	$ 25,865	25,865				25,865	$ 25,865
Net income attributable to noncontrolling interests	5,305	5,305			$ 5,305	5,305
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	1,061	1,061	1,061	1,061						$ (1,061)	1,061
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(190)	(190)	(188)	(188)	(2)	(2)				(188)	(188)
Share-based compensation benefit (equity classified)	(8,718)	(8,718)	(8,718)	(8,718)			$ (8,718)	(8,718)
Noncontrolling Interest, Change in Redemption Value	22,193	22,193	14,166	14,166	8,027	8,027	14,166	14,166
Dividends, Cash		(83)
Non-cash distributions to parent								1
Other adjustment to equity (deficiency)	(82)	(82)	(82)	(82)			(67)	(82)
Accumulated other comprehensive loss											(7,328)
Membership equity before noncontrolling interest				(480,079)
Noncontrolling interests						(31,425)
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest		(511,504)
Member's Deficiency								(472,751)
Accumulated other comprehensive loss	(12,851)	(12,851)									(12,851)
Membership equity before noncontrolling interest		(425,687)		(425,687)
Noncontrolling interests	(12,238)	(12,238)				(12,238)
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest		(437,925)
Member's Deficiency		(412,836)						(412,836)
Accumulated deficit	(601,075)
Net income (loss) attributable to CSC Holdings, LLC sole member	(21,193)	(21,193)	(21,193)	(21,193)				(21,193)	$ (21,193)
Net income attributable to noncontrolling interests	8,297	8,297			$ 8,297	8,297
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	4,255	4,255	4,255	4,255						(4,255)	4,255
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(612)	(612)	(612)	(612)						$ (612)	(612)
Share-based compensation benefit (equity classified)	6,484	6,484	6,484	6,484			6,484	6,484
Dividends, Cash		(3,775)		(3,775)				(3,775)
Non-cash distributions to parent		5,858		5,858				5,858
Other adjustment to equity (deficiency)	2,082		$ 2,082				$ 2,043
Accumulated other comprehensive loss	(9,208)	(9,208)									$ (9,208)
Membership equity before noncontrolling interest		(434,670)		$ (434,670)
Noncontrolling interests	(3,941)	(3,941)				$ (3,941)
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest		(438,611)
Member's Deficiency		$ (425,462)						$ (425,462)
Accumulated deficit	$ (622,268)

CSC HOLDINGS - CONSOLIDATED S_4

CSC HOLDINGS - CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net income	$ (12,896)	$ 31,170
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization (including impairments)	388,391	416,212
Loss (gain) on investments and sale of affiliate interests, net	(292)	(192,010)
Loss on derivative contracts, net	0	166,489
Loss (gain) on extinguishment of debt and write-off of deferred financing costs	7,035	(4,393)
Amortization of deferred financing costs and discounts (premiums) on indebtedness	6,893	10,719
Share-based compensation	13,757	(2,623)
Deferred income taxes	86,595	(57,248)
Decrease in right-of-use assets	11,488	11,324
Provision for doubtful accounts	21,998	20,259
Other	1,510	316
Change in operating assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	20,908	26,364
Prepaid expenses and other assets	(85,655)	(45,931)
Amounts due from and due to affiliates	15,606	10,084
Accounts payable and accrued liabilities	(64,859)	(20,577)
Deferred revenue	3,056	13,833
Interest rate swap contracts	(13,874)	32,858
Net cash provided by operating activities	399,661	416,846
Cash flows from investing activities:
Capital expenditures	(336,095)	(582,897)
Other, net	318	(198)
Net cash used in investing activities	(335,777)	(583,095)
Cash flows from financing activities:
Proceeds from long-term debt	2,950,000	350,000
Repayment of debt	(2,967,306)	(268,936)
Proceeds from derivative contracts in connection with the settlement of collateralized debt	0	38,902
Principal payments on finance lease obligations	(35,396)	(37,861)
Payment related to acquisition of a noncontrolling interest	(7,261)	0
Other, net	(3,775)	(700)
Net cash provided by (used in) financing activities	(80,876)	81,405
Net decrease in cash and cash equivalents	(16,992)	(84,844)
Effect of exchange rate changes on cash and cash equivalents	(612)	(190)
Net decrease in cash and cash equivalents	(17,604)	(85,034)
Cash, cash equivalents and restricted cash at beginning of year	302,338	305,751
Cash, cash equivalents and restricted cash at end of period	284,734	220,717
Additions to deferred financing costs	(17,138)	0
CSC Holdings
Cash flows from operating activities:
Net income	(12,896)	31,170
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization (including impairments)	388,391	416,212
Loss (gain) on investments and sale of affiliate interests, net	(292)	(192,010)
Loss on derivative contracts, net	0	166,489
Loss (gain) on extinguishment of debt and write-off of deferred financing costs	7,035	(4,393)
Amortization of deferred financing costs and discounts (premiums) on indebtedness	6,893	10,719
Share-based compensation	13,757	(2,623)
Deferred income taxes	86,595	(57,248)
Decrease in right-of-use assets	11,488	11,324
Provision for doubtful accounts	21,998	20,259
Other	1,510	316
Change in operating assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	20,908	26,364
Prepaid expenses and other assets	(85,655)	(45,931)
Amounts due from and due to affiliates	15,606	10,084
Accounts payable and accrued liabilities	(64,858)	(20,577)
Deferred revenue	3,056	13,833
Interest rate swap contracts	(13,874)	32,858
Net cash provided by operating activities	399,662	416,846
Cash flows from investing activities:
Capital expenditures	(336,095)	(582,897)
Other, net	318	(198)
Net cash used in investing activities	(335,777)	(583,095)
Cash flows from financing activities:
Proceeds from long-term debt	2,950,000	350,000
Repayment of debt	(2,967,306)	(268,936)
Proceeds from derivative contracts in connection with the settlement of collateralized debt	0	38,902
Principal payments on finance lease obligations	(35,396)	(37,861)
Payment related to acquisition of a noncontrolling interest	(7,261)	0
Other, net	(3,775)	(700)
Net cash provided by (used in) financing activities	(80,876)	81,405
Net decrease in cash and cash equivalents	(16,991)	(84,844)
Effect of exchange rate changes on cash and cash equivalents	(612)	(190)
Net decrease in cash and cash equivalents	(17,603)	(85,034)
Cash, cash equivalents and restricted cash at beginning of year	302,331	305,744
Cash, cash equivalents and restricted cash at end of period	284,728	220,710
Additions to deferred financing costs	$ (17,138)	$ 0

DESCRIPTION OF BUSINESS AND REL

DESCRIPTION OF BUSINESS AND RELATED MATTERS	3 Months Ended
	Mar. 31, 2024
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. Altice USA is majority-owned by Patrick Drahi through Next Alt S.à r.l. ("Next Alt"). Patrick Drahi also controls Altice Group Lux S.à r.l, ("Altice Europe") and its subsidiaries and other entities. 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", "we", "us" and "our"), principally delivers broadband, video, and telephony services to residential and business customers, as well as proprietary content and advertising services in the United States. We market our residential services under the Optimum brand and provide enterprise services under the Lightpath and Optimum Business brands. In addition, we offer a full service mobile offering to consumers across our footprint. As these businesses are managed on a consolidated basis, we classify our operations in one segment. The accompanying consolidated financial statements ("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. 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 CSC Holdings has a higher deferred tax liability on their respective consolidated balance sheets. Additionally, CSC Holdings and its subsidiaries have certain intercompany receivables from and payables to Altice USA. 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 and 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.

BASIS OF PRESENTATION

BASIS OF PRESENTATION	3 Months Ended
	Mar. 31, 2024
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies [Text Block]	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, 2023. 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, 2024. 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 revenues and expenses during the reporting period. Actual results could differ from those estimates. See Note 11 for a discussion of fair value estimates.

Revenue Recognition and Deferre

Revenue Recognition and Deferred Revenue	3 Months Ended
	Mar. 31, 2024
Revenue from Contract with Customer [Abstract]
Revenue Recognition	REVENUE The following table presents the composition of revenue: Three Months Ended March 31, 2024 2023 Residential: Broadband $ 916,994 $ 957,045 Video 755,594 770,601 Telephony 70,965 77,681 Mobile (a) 24,893 15,526 Residential revenue (a) 1,768,446 1,820,853 Business services and wholesale (a) 364,861 363,641 News and advertising 105,725 98,737 Other (a) 11,903 10,747 Total revenue $ 2,250,935 $ 2,293,978 (a) Beginning in the second quarter of 2023, mobile service revenue previously included in mobile revenue is now separately reported in residential revenue and business services revenue. In addition, mobile equipment revenue previously included in mobile revenue is now included in other revenue. Prior period amounts have been revised to conform with this presentation. We are assessed non-income related taxes by governmental authorities, including franchising authorities (generally under multi-year agreements), and collect such taxes from our customers. In instances where the tax is being assessed directly on us, 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 months ended March 31, 2024 and 2023, the amount of franchise fees and certain other taxes and fees included as a component of revenue aggregated $54,694 and $56,455, respectively. Customer Contract Costs Deferred enterprise sales commission costs are included in other current and noncurrent assets in the consolidated balance sheets and totaled $18,283 and $18,109 as of March 31, 2024 and December 31, 2023, respectively. A significant portion of our revenue is derived from residential and small and medium-sized business ("SMB") customer contracts which are month-to-month. As such, the amount of revenue related to unsatisfied performance
Concentration Risk Disclosure	Concentration of Credit Risk We did not have a single customer that represented 10% or more of our consolidated revenues for the three months ended March 31, 2024 and 2023 or 10% or more of our consolidated net trade receivables at March 31, 2024 and December 31, 2023, respectively.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2024
Earnings Per Share [Abstract]
Earnings Per Share	NET INCOME (LOSS) PER SHARE Basic net income (loss) per common share attributable to Altice USA stockholders is computed by dividing net income 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, restricted stock, restricted stock units, and deferred cash-denominated awards. For awards that are performance based, the dilutive effect is reflected upon the achievement of the performance criteria. Diluted net loss per common share attributable to Altice USA stockholders excludes the effects of common stock equivalents as they are anti-dilutive. The following table presents a reconciliation of weighted average shares used in the calculations of the basic and diluted net income per share attributable to Altice USA stockholders: Three Months Ended March 31, 2023 (in thousands) Basic weighted average shares outstanding 454,686 Effect of dilution: Restricted stock 245 Deferred cash-denominated awards (Note 13) 663 Diluted weighted average shares outstanding 455,594 Weighted average shares excluded from diluted weighted average shares outstanding: Anti-dilutive shares 50,539 Share-based compensation awards whose performance metrics have not been achieved 6,921 Net income 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.

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	3 Months Ended
	Mar. 31, 2023
Supplemental Cash Flow Elements [Abstract]
SUPPLEMENTAL CASH FLOW INFORMATION	SUPPLEMENTAL CASH FLOW INFORMATION Our non-cash investing and financing activities and other supplemental data were as follows: Three Months Ended March 31, 2024 2023 Non-Cash Investing and Financing Activities: Altice USA and CSC Holdings: Property and equipment accrued but unpaid $ 320,389 $ 407,013 Notes payable for the purchase of equipment and other assets 36,278 70,440 Right-of-use assets acquired in exchange for finance lease obligations 8,290 35,175 Other 1,798 — Supplemental Data: Altice USA and CSC Holdings: Cash interest paid, net of capitalized interest 401,987 389,162 Income taxes paid, net 11,151 12,661

RESTRUCTURING AND OTHER EXPENSE

RESTRUCTURING AND OTHER EXPENSE	3 Months Ended
	Mar. 31, 2024
Restructuring and Related Activities [Abstract]
RESTRUCTURING AND OTHER EXPENSE	RESTRUCTURING, IMPAIRMENTS AND OTHER OPERATING ITEMS Our restructuring, impairments and other operating items are comprised of the following: Three Months Ended March 31, 2024 2023 Contract termination costs (a) $ 37,136 $ — Contractual payments for terminated employees 5,993 28,019 Facility realignment costs 5,304 382 Impairment of right-of-use operating lease assets 1,027 5 Other 1,793 1,266 $ 51,253 $ 29,672 (a) Represents the cost to early terminate a contract with a vendor.

INTANGIBLE ASSETS

INTANGIBLE ASSETS	3 Months Ended
	Mar. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
INTANGIBLE ASSETS	GOODWILL AND INTANGIBLE ASSETS Our amortizable intangible assets primarily consist of customer relationships acquired pursuant to business combinations and represent the value of the business relationship with those customers. The following table summarizes information relating to our acquired amortizable intangible assets: As of March 31, 2024 As of December 31, 2023 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Useful Lives Customer relationships $ 6,073,152 $ (4,907,471) $ 1,165,681 $ 6,073,152 $ (4,824,140) $ 1,249,012 3 to 18 years Trade names 1,010,300 (1,010,300) — 1,010,300 (1,010,300) — 4 to 7 years Other amortizable intangibles 50,701 (40,865) 9,836 50,495 (40,172) 10,323 1 to 15 years $ 7,134,153 $ (5,958,636) $ 1,175,517 $ 7,133,947 $ (5,874,612) $ 1,259,335 Amortization expense for the three months ended March 31, 2024 and 2023 aggregated $84,024 and $105,695, respectively. Goodwill and the value of indefinite-lived cable franchises acquired in business combinations are not amortized. Rather, such assets are tested for impairment annually, as of October 1, or whenever events or changes in circumstances indicate that it is more likely than not that the assets may be impaired. The carrying amount of indefinite-lived cable franchise rights was $13,216,355 and goodwill was $8,044,716 as of March 31, 2024 and December 31, 2023.

DEBT

DEBT	3 Months Ended
	Mar. 31, 2024
Debt Disclosure [Abstract]
DEBT	DEBT The following table provides details of our outstanding debt: Interest Rate at March 31, 2024 March 31, 2024 December 31, 2023 Date Issued Maturity Date Principal Amount Carrying Amount (a) Principal Amount Carrying Amount (a) CSC Holdings Senior Notes: May 23, 2014 (g) $ — $ — $ 750,000 $ 742,746 October 18, 2018 April 1, 2028 7.500 % 4,118 4,115 4,118 4,114 November 27, 2018 April 1, 2028 7.500 % 1,045,882 1,044,982 1,045,882 1,044,933 July 10 and October 7, 2019 January 15, 2030 5.750 % 2,250,000 2,274,997 2,250,000 2,275,915 June 16 and August 17, 2020 December 1, 2030 4.625 % 2,325,000 2,358,046 2,325,000 2,359,078 May 13, 2021 November 15, 2031 5.000 % 500,000 498,563 500,000 498,525 6,125,000 6,180,703 6,875,000 6,925,311 CSC Holdings Senior Guaranteed Notes: September 23, 2016 April 15, 2027 5.500 % 1,310,000 1,307,868 1,310,000 1,307,709 January 29, 2018 February 1, 2028 5.375 % 1,000,000 996,162 1,000,000 995,940 January 24, 2019 February 1, 2029 6.500 % 1,750,000 1,748,177 1,750,000 1,748,098 June 16, 2020 December 1, 2030 4.125 % 1,100,000 1,096,607 1,100,000 1,096,499 August 17, 2020 February 15, 2031 3.375 % 1,000,000 997,631 1,000,000 997,556 May 13, 2021 November 15, 2031 4.500 % 1,500,000 1,495,715 1,500,000 1,495,598 April 25, 2023 May 15, 2028 11.250 % 1,000,000 994,334 1,000,000 994,072 January 25, 2024 January 31, 2029 11.750 % 2,050,000 2,031,568 — — 10,710,000 10,668,062 8,660,000 8,635,472 CSC Holdings Restricted Group Credit Facility: Revolving Credit Facility (b) July 13, 2027 7.678 % 1,600,000 1,596,861 825,000 821,632 Term Loan B (f) — — 1,520,483 1,518,530 Incremental Term Loan B-3 (f) — — 521,744 520,988 Incremental Term Loan B-5 (c) April 15, 2027 7.940 % 2,880,000 2,869,447 2,887,500 2,876,131 Incremental Term Loan B-6 (d) January 15, 2028 9.825 % 1,981,923 1,945,521 1,986,928 1,948,503 6,461,923 6,411,829 7,741,655 7,685,784 Lightpath Senior Notes: September 29, 2020 September 15, 2028 5.625 % 415,000 409,407 415,000 409,136 Lightpath Senior Secured Notes: September 29, 2020 September 15, 2027 3.875 % 450,000 444,759 450,000 444,410 Lightpath Term Loan (e) November 30, 2027 8.690 % 580,500 571,011 582,000 571,898 Lightpath Revolving Credit Facility — — — — 1,445,500 1,425,177 1,447,000 1,425,444 Finance lease obligations 201,250 201,250 228,356 228,356 Notes payable and supply chain financing 174,798 174,798 174,594 174,594 25,118,471 25,061,819 25,126,605 25,074,961 Less: current portion of credit facility debt (56,019) (56,019) (61,177) (61,177) Less: current portion of finance lease obligations (113,300) (113,300) (123,636) (123,636) Less: current portion of notes payable and supply chain financing (174,798) (174,798) (174,594) (174,594) (344,117) (344,117) (359,407) (359,407) Long-term debt $ 24,774,354 $ 24,717,702 $ 24,767,198 $ 24,715,554 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums. (b) At March 31, 2024, $137,512 of the revolving credit facility was restricted for certain letters of credit issued on our behalf and $737,488 of the $2,475,000 facility was undrawn and available, subject to covenant limitations. The revolving credit facility bears interest at a rate of Secured Overnight Financing Rate ("SOFR") (plus a Term SOFR credit adjustment spread of 0.10%) plus 2.25% per annum. (c) Incremental Term Loan B-5 requires quarterly installments of $7,500 and bears interest at a rate equal to Synthetic USD London Interbank Offered Rate ("LIBOR") plus 2.50% per annum. (d) Incremental Term Loan B-6 requires quarterly installments of $5,005 and bears interest at a rate equal to SOFR plus 4.50% per annum. (e) Pursuant to the loan agreement, interest will be calculated for any (i) SOFR loan, at a rate per annum equal to the Term SOFR (plus spread adjustments of 0.11448%, 0.26161% and 0.42826% for interest periods of one, three and six months, respectively) or (ii) the alternate base rate loan, at the alternative base rate as applicable, plus the applicable margin in each case, where the applicable margin is 2.25% per annum with respect to any alternate base rate loan and 3.25% per annum with respect to any SOFR loan. (f) The Term Loan B and Incremental Term Loan B-3 were repaid with proceeds from the issuance of senior guaranteed notes in January 2024. See discussion below. (g) The 5.250% senior notes were redeemed in February 2024 with proceeds from drawings under the CSC Holdings Revolving Credit Facility. See discussion below. For financing purposes, we have two debt silos: CSC Holdings and Lightpath. The CSC Holdings silo is structured as a restricted group (the "CSC Holdings Restricted Group") and an unrestricted group, which includes certain designated subsidiaries and investments. The CSC Holdings Restricted Group is comprised of CSC Holdings and substantially all of its wholly-owned operating subsidiaries excluding Cablevision Lightpath which became an unrestricted subsidiary in September 2020. These CSC Holdings Restricted Group subsidiaries are subject to the covenants and restrictions of the credit facility and indentures governing the notes issued by CSC Holdings. The Lightpath silo includes all of its operating subsidiaries which are subject to the covenants and restrictions of the credit facility and indentures governing the notes issued by Lightpath. CSC Holdings Revolving Credit Facility During the three months ended March 31, 2024, CSC Holdings borrowed $900,000 under its revolving credit facility and repaid $125,000 of amounts outstanding under the revolving credit facility. CSC Holdings Senior Guaranteed Notes and Senior Notes In January 2024, CSC Holdings issued $2,050,000 in aggregate principal amount of senior guaranteed notes due 2029. These notes bear interest at a rate of 11.750% and will mature on January 31, 2029. The proceeds from the sale of these notes were used to (i) repay the outstanding principal balance of the Term Loan B, (ii) repay the outstanding principal balance of the Incremental Term Loan B-3, and (iii) pay the fees, costs and expenses associated with these transactions. In connection with these transactions, we recorded a write-off of the outstanding deferred financing costs on these loans of $2,598. In February 2024, we redeemed the CSC Holdings 5.250% Senior Notes and 5.250% Series B Senior Notes due June 2024 with proceeds under the CSC Revolving Credit Facility. In connection with these transactions, we recorded a write-off of the outstanding deferred financing costs on these notes of $4,437. Lightpath Credit Facility In February 2024, Lightpath entered into an extension amendment (the "Extension Amendment") to its amended credit agreement (the "Amended Credit Agreement") that provides for, among other things, (a) an extension of the scheduled maturity date with respect to the 2027 Revolving Credit Commitments (as defined in the Extension Amendment) under the credit agreement to the date (the "New Maturity Date") that is the later of (x) November 30, 2025 and (y) the earlier of (i) June 15, 2027 and (ii) the date that is five business days after any Extension Breach Date (as defined in the Amended Credit Agreement) and (b) incremental revolving credit commitments in an aggregate principal amount of $15,000 which shall be of the same class and type as the 2027 Revolving Credit Commitments and will, for the avoidance of doubt, mature on the New Maturity Date. After giving effect to the Extension Amendment, the aggregate principal amount of revolving loan commitments available under the Amended Credit Agreement equaled $115,000. Under the Extension Amendment, the aggregate principal amount of 2027 Revolving Credit Commitments equaled $95,000 and the aggregate principal amount of 2025 Revolving Credit Commitments (as defined in the Extension Amendment) equaled $20,000. Interest will be calculated at a rate per annum equal to the adjusted Term SOFR rate or the alternate base rate, as applicable, plus the applicable margin, where the applicable margin is (i) with respect to any alternate base rate loan, 2.25% per annum and (ii) with respect to any Term SOFR loan, 3.25% per annum. Debt Compliance As of March 31, 2024, CSC Holdings and Lightpath were in compliance with applicable financial covenants under their respective credit facilities and with applicable financial covenants under each respective indenture by which the senior guaranteed notes, senior secured notes and senior notes were issued. Supply Chain Financing Arrangement We have a supply chain financing arrangement with a financial institution with credit availability of $175,000 that is used to finance certain of our property and equipment purchases. This arrangement extends our repayment terms beyond a vendor’s original invoice due dates (for up to one year) and as such are classified as debt on our consolidated balance sheets. The following is a rollforward of the outstanding balances relating to our supply chain financing arrangement: Balance as of December 31, 2023 $ 174,454 Purchases financed 36,278 Repayments (35,934) Balance as of March 31, 2024 $ 174,798 Summary of Debt Maturities The future principal payments under our various debt obligations outstanding as of March 31, 2024, including notes payable and supply chain financing, but excluding finance lease obligations, are as follows: 2024 $ 180,535 2025 92,297 2026 56,019 2027 6,741,520 2028 (a) 5,371,850 Thereafter 12,475,000 (a) Includes $1,906,850 principal amount related to the CSC Holdings' Incremental Term Loan B-6 that is due on the earlier of (i) January 15, 2028 and (ii) April 15, 2027 if, as of such date, any Incremental Term Loan B-5 borrowings are still outstanding, unless the Incremental Term Loan B-5 maturity date has been extended to a date falling after January 15, 2028.

DERIVATIVE CONTRACTS AND COLLAT

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS	3 Months Ended
	Mar. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS	DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS Prepaid Forward Contracts Historically, we had entered into various transactions to limit the exposure against equity price risk on shares of Comcast Corporation ("Comcast") common stock we previously owned. We monetized all of our stock holdings in Comcast through the execution of prepaid forward contracts, collateralized by an equivalent amount of the respective underlying stock. In January 2023, we settled our outstanding collateralized indebtedness by delivering the Comcast shares we held and the related equity derivative contracts which resulted in us receiving net cash of approximately $50,500 (including dividends of $11,598) and recorded a gain on the extinguishment of debt of $4,393. As of March 31, 2024, we did not hold and have not issued equity derivative instruments for trading or speculative purposes. 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 us 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 not designated as hedges for accounting purposes and are carried at their fair market values on our consolidated balance sheets, with changes in fair value reflected in the consolidated statements of operations. The following represents the location of the assets associated with our derivative instruments within the consolidated balance sheets: Derivatives Not Designated as Hedging Instruments Balance Sheet Location Fair Value at March 31, 2024 December 31, 2023 Asset Derivatives: Interest rate swap contracts Derivative contracts $ 51,212 $ — Interest rate swap contracts Other assets, long-term 75,576 112,914 $ 126,788 $ 112,914 The following table presents certain consolidated statement of operations data related to our derivative contracts and the underlying Comcast common stock: Three Months Ended March 31, 2024 2023 Loss on derivative contracts related to change in the value of equity derivative contracts related to Comcast common stock $ — $ (166,489) Change in the fair value of Comcast common stock included in gain (loss) on investments — 192,010 Gain (loss) on interest rate swap contracts, net 42,303 (14,429) Interest Rate Swap Contract The following is a summary of the terms of our interest rate swap contracts: Maturity Date Notional Amount Company Pays Company Receives CSC Holdings: January 2025 $500,000 Fixed rate of 1.3281% One-month SOFR January 2025 500,000 Fixed rate of 1.4223% One-month SOFR January 2025 500,000 Fixed rate of 1.2567% One-month SOFR December 2026 750,000 Fixed rate of 2.7129% One-month SOFR December 2026 750,000 Fixed rate of 2.6999% One-month SOFR Lightpath: December 2026 300,000 Fixed rate of 2.11% One-month SOFR December 2026 180,000 Fixed rate of 3.523% One-month SOFR

FAIR VALUE MEASUREMENT

FAIR VALUE MEASUREMENT	3 Months Ended
	Mar. 31, 2024
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 our financial assets and financial liabilities that are measured at fair value on a recurring basis and their classification under the fair value hierarchy: Fair Value March 31, 2024 December 31, 2023 Assets: Money market funds Level I $ 39,906 $ 49,541 Interest rate swap contracts Level II 126,788 112,914 Liabilities: Contingent consideration related to acquisition Level III 2,303 2,037 Our money market funds which are classified as cash equivalents are classified within Level I of the fair value hierarchy because they are valued using quoted market prices. The interest rate swap contracts on our 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, we have concluded that these instruments should be classified within Level II of the fair value hierarchy. The fair values of the contingent consideration as of March 31, 2024 and December 31, 2023 related to an acquisition in the third quarter of 2022 and were determined using a probability assessment of the contingent payment for the respective periods. 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, Senior Notes, Senior Guaranteed Notes, Senior Secured Notes, Notes Payable, and Supply Chain Financing The fair values of each of our debt instruments are based on quoted market prices for the same or similar issues or on the current rates offered to us 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 their short-term maturity (less than one year). The carrying values, estimated fair values, and classification under the fair value hierarchy of our financial instruments, excluding those that are carried at fair value in the accompanying consolidated balance sheets, are summarized below: March 31, 2024 December 31, 2023 Fair Value Carrying Estimated Carrying Estimated Credit facility debt Level II $ 6,982,840 $ 7,042,423 $ 8,257,682 $ 8,323,654 Senior guaranteed notes and senior secured notes Level II 11,112,821 9,428,313 9,079,882 7,784,288 Senior notes Level II 6,590,110 3,653,838 7,334,447 4,932,931 Notes payable and supply chain financing Level II 174,798 174,798 174,594 174,594 $ 24,860,569 $ 20,299,372 $ 24,846,605 $ 21,215,467 (a) Amounts are net of unamortized deferred financing costs and discounts/premiums.

INCOME TAXES

INCOME TAXES	3 Months Ended
	Mar. 31, 2024
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES We 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. For the three months ended March 31, 2024, we recorded tax expense of $2,924 on a pre-tax loss of $9,972, resulting in an effective tax rate that was higher than the U.S. statutory tax rate. The higher tax rate was primarily due to the impact of state tax expense, certain non-deductible expenses, and tax deficiencies on share-based compensation. For the three months ended March 31, 2023, we recorded a tax expense of $30,372 on pre-tax income of $61,542, 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, state tax expense, and tax deficiencies on share-based compensation.

SHARE-BASED COMPENSATION

SHARE-BASED COMPENSATION	3 Months Ended
	Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]
SHARE-BASED COMPENSATION	SHARE-BASED COMPENSATION The following table presents share-based compensation expense (benefit) and unrecognized compensation cost: Share-Based Compensation Unrecognized Compensation Cost as of March 31, 2024 Three Months Ended March 31, 2024 2023 Awards issued pursuant to LTIP: Stock option awards (a) $ (1,688) $ (5,585) $ 5,278 Performance stock units (a) (1,730) (7,198) 5,392 Restricted share units 9,752 3,396 80,984 Cash denominated performance awards 5,292 326 35,932 Other 2,131 6,438 4,251 $ 13,757 $ (2,623) $ 131,837 (a) The benefit for 2023 includes credits due to the modification of awards to certain former executive officers and other forfeitures. Restricted Share Units The following table summarizes activity related to restricted share units granted to our employees: Number of Units Balance at December 31, 2023 22,493,888 Granted 16,268,960 Vested (3,266,648) Forfeited (1,504,386) Balance at March 31, 2024 33,991,814 Cash Denominated Performance Awards The following table summarizes activity related to cash denominated performance award granted to our employees: Number of Units Balance at December 31, 2023 48,492,500 Forfeited (2,740,000) Balance at March 31, 2024 45,752,500 The deferred cash denominated performance awards cliff vest in three years. The payout of these awards can range from 0% to 200% of the target value based on the Company’s achievement of certain revenue and Adjusted EBITDA targets during a three year performance period. These awards will be settled in shares of the Company's Class A common stock, or cash, at the Company's option. Lightpath Plan Awards As of March 31, 2024, 494,286 Class A-1 management incentive units and 250,829 Class A-2 management incentive units ("Award Units") granted to certain employees of Lightpath were outstanding. Vested units will be redeemed upon a partial exit, a change in control or the completion of an initial public offering, as defined in the Holdings LLC agreement. The grant date fair value of the Award Units outstanding aggregated $29,438 and will be expensed in the period in which a partial exit or a liquidity event is consummated.

AFFILIATE AND RELATED PARTY TRA

AFFILIATE AND RELATED PARTY TRANSACTIONS	3 Months Ended
	Mar. 31, 2024
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 through Next Alt who also controls Altice Europe 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 expenses related to services provided to or received from affiliates and related parties: Three Months Ended March 31, 2024 2023 Revenue $ 210 $ 78 Operating expenses: Programming and other direct costs (3,355) (2,642) Other operating expenses, net (12,289) (4,676) Operating expenses, net (15,644) (7,318) Net charges $ (15,434) $ (7,240) Capital expenditures $ 50,093 $ 28,134 Revenue We recognize revenue primarily from the sale of advertising to a subsidiary of Altice Europe. Programming and other direct costs Programming and other direct costs include costs incurred for advertising services provided by a subsidiary of Altice Europe. Other operating expenses, net Other operating expenses primarily include charges for services provided by certain subsidiaries of Altice Europe and other related parties, including costs for customer care services. 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: March 31, 2024 December 31, 2023 Due from: Altice Europe $ 137 $ 137 Other affiliates and related parties 270 270 $ 407 $ 407 Due to: Altice Europe $ 87,129 $ 71,523 $ 87,129 $ 71,523 Amounts due from affiliates presented in the table above represent amounts due for services provided to the respective related party. Amounts due to affiliates presented in the table above and included in other current liabilities in the accompanying balance sheets relate to the purchase of equipment, customer care services, and advertising services, as well as reimbursement for payments made on our behalf. CSC Holdings

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	3 Months Ended
	Mar. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Legal Matters On December 7, 2023, Warner Records Inc., Sony Music Publishing (US) LLC and a number of other purported copyright holders (collectively, the “Warner Plaintiffs”) filed a complaint in the U.S. District Court for the Eastern District of Texas (the “Warner Matter”), alleging that certain of our Internet subscribers directly infringed over 10,700 of the Warner Plaintiffs’ copyrighted works. The Warner Plaintiffs seek to hold us liable for claims of contributory infringement of copyright and vicarious copyright infringement. The Warner Plaintiffs also claim that our alleged secondary infringement was willful and seek substantial statutory damages. The Warner Matter follows a similar complaint filed in December 2022 by BMG Rights Management (US) LLC, UMG Recordings, Inc., Capitol Records, LLC, Concord Music Group, Inc., and Concord Bicycle Assets, LLC (collectively, the “BMG Plaintiffs”) in the U.S. District Court for the Eastern District of Texas (the “BMG Matter”) alleging that certain of our Internet subscribers directly infringed over 8,000 of the BMG Plaintiffs’ copyrighted works. The BMG Plaintiffs seek to hold us liable for claims of contributory infringement of copyright and vicarious copyright infringement. The BMG Plaintiffs claim that our alleged secondary infringement was willful and seek substantial statutory damages. Trial in this matter is scheduled for September 2024. We intend to and are vigorously defending against the claims in the Warner Matter and the BMG Matter. In addition to contesting the claims of liability, we have an affirmative defense under the Digital Millennium Copyright Act that, if successful, would preclude or limit monetary damages against us in connection with some or all of the Warner Plaintiffs’ and BMG Plaintiffs’ asserted claims. There can be no assurance as to the outcome of these litigations. We may incur significant costs in defending these actions, and if we need to take measures to reduce our exposure to these risks or are required to pay damages in relation to such claims or choose to settle such claims, our business, reputation, financial condition and results of operations could be materially adversely affected. We also receive notices from third parties, and in some cases we are named as a defendant in lawsuits, claiming infringement of various patents or copyrights relating to various aspects of our businesses. In certain of these cases other industry participants are also defendants, and in certain of these cases we expect that some or all potential liability would be the responsibility of our vendors pursuant to applicable contractual indemnification provisions. In the event that we are found to infringe on any patent or other intellectual property rights, we may be subject to substantial damages or an injunction that could require us or our vendors to modify certain products and services we offer to our subscribers, as well as enter into royalty or license agreements with respect to the patents at issue. We are also party to various other lawsuits, disputes and investigations arising in the ordinary course of our business, some of which may involve claims for substantial damages, fines or penalties. Although the outcome of these matters cannot be predicted and the impact of the final resolution of these matters on our results of operations in a particular subsequent reporting period is not known, management does not believe that the resolution of these matters, individually, will have a material adverse effect on our operations or financial position or our ability to meet our financial obligations as they become due, but they could be material to our consolidated results of operations or cash flows for any one period.

Accounting Policies (Policies)

Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2024
Accounting Policies [Abstract]
Recently Adopted Accounting Pronouncements and Recently Issued But Not Yet Adopted Accounting Pronouncements	ACCOUNTING STANDARDS Recently Issued But Not Yet Adopted Accounting Pronouncements ASU No. 2023-07 Segment Reporting—Improvements to Reportable Segment Disclosures In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting—Improvements to Reportable Segment Disclosures, to improve financial reporting by requiring disclosure of incremental segment information on an annual and interim basis for all public entities. ASU No. 2023-07 is meant to enhance interim disclosure requirements, clarify circumstances in which an entity can disclose multiple segment measures of profit or loss, and provide new segment disclosure requirements for entities with a single reportable segment. ASU 2023-07 is effective for annual periods beginning after December 15, 2023 (year ending December 31, 2024 for the Company). Early adoption is permitted. We are currently evaluating the impact of adopting ASU 2023-07. ASU No. 2023-09 Income Taxes—Improvements to Income Tax Disclosures In December 2023, the FASB issued ASU No. 2023-09, Income Taxes—Improvements to Income Tax Disclosures , which require greater disaggregation of income tax disclosures related to the income tax rate reconciliation and income taxes paid. ASU 2023-09 is effective for annual periods beginning after December 15, 2024 (year ending December 31, 2025 for the Company). Early adoption is permitted. We are currently evaluating the impact of adopting ASU No. 2023-09.

Revenue Recognition and Defer_2

Revenue Recognition and Deferred Revenue (Tables)	3 Months Ended
	Mar. 31, 2024
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table presents the composition of revenue: Three Months Ended March 31, 2024 2023 Residential: Broadband $ 916,994 $ 957,045 Video 755,594 770,601 Telephony 70,965 77,681 Mobile (a) 24,893 15,526 Residential revenue (a) 1,768,446 1,820,853 Business services and wholesale (a) 364,861 363,641 News and advertising 105,725 98,737 Other (a) 11,903 10,747 Total revenue $ 2,250,935 $ 2,293,978 (a) Beginning in the second quarter of 2023, mobile service revenue previously included in mobile revenue is now separately reported in residential revenue and business services revenue. In addition, mobile equipment revenue previously included in mobile revenue is now included in other revenue. Prior period amounts have been revised to conform with this presentation.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2024
Earnings Per Share [Abstract]
Schedule of Weighted Average Number of Shares [Table Text Block]	The following table presents a reconciliation of weighted average shares used in the calculations of the basic and diluted net income per share attributable to Altice USA stockholders: Three Months Ended March 31, 2023 (in thousands) Basic weighted average shares outstanding 454,686 Effect of dilution: Restricted stock 245 Deferred cash-denominated awards (Note 13) 663 Diluted weighted average shares outstanding 455,594 Weighted average shares excluded from diluted weighted average shares outstanding: Anti-dilutive shares 50,539 Share-based compensation awards whose performance metrics have not been achieved 6,921

SUPPLEMENTAL CASH FLOW INFORM_2

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	3 Months Ended
	Mar. 31, 2024
Supplemental Cash Flow Elements [Abstract]
Non-Cash Investing and Financing Activities and Other Supplemental Data	Our non-cash investing and financing activities and other supplemental data were as follows: Three Months Ended March 31, 2024 2023 Non-Cash Investing and Financing Activities: Altice USA and CSC Holdings: Property and equipment accrued but unpaid $ 320,389 $ 407,013 Notes payable for the purchase of equipment and other assets 36,278 70,440 Right-of-use assets acquired in exchange for finance lease obligations 8,290 35,175 Other 1,798 — Supplemental Data: Altice USA and CSC Holdings: Cash interest paid, net of capitalized interest 401,987 389,162 Income taxes paid, net 11,151 12,661

RESTRUCTURING AND OTHER EXPEN_2

RESTRUCTURING AND OTHER EXPENSE (Tables)	3 Months Ended
	Mar. 31, 2024
Restructuring and Related Activities [Abstract]
Restructuring Cost Activity	Our restructuring, impairments and other operating items are comprised of the following: Three Months Ended March 31, 2024 2023 Contract termination costs (a) $ 37,136 $ — Contractual payments for terminated employees 5,993 28,019 Facility realignment costs 5,304 382 Impairment of right-of-use operating lease assets 1,027 5 Other 1,793 1,266 $ 51,253 $ 29,672 (a) Represents the cost to early terminate a contract with a vendor.

INTANGIBLE ASSETS (Tables)

INTANGIBLE ASSETS (Tables)	3 Months Ended
	Mar. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Acquired Finite-Lived Intangible Assets by Major Class	The following table summarizes information relating to our acquired amortizable intangible assets: As of March 31, 2024 As of December 31, 2023 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Useful Lives Customer relationships $ 6,073,152 $ (4,907,471) $ 1,165,681 $ 6,073,152 $ (4,824,140) $ 1,249,012 3 to 18 years Trade names 1,010,300 (1,010,300) — 1,010,300 (1,010,300) — 4 to 7 years Other amortizable intangibles 50,701 (40,865) 9,836 50,495 (40,172) 10,323 1 to 15 years $ 7,134,153 $ (5,958,636) $ 1,175,517 $ 7,133,947 $ (5,874,612) $ 1,259,335 Amortization expense for the three months ended March 31, 2024 and 2023 aggregated $84,024 and $105,695, respectively.

DEBT (Tables)

DEBT (Tables)	3 Months Ended
	Mar. 31, 2024
Debt Disclosure [Abstract]
Schedule of Debt	The following table provides details of our outstanding debt: Interest Rate at March 31, 2024 March 31, 2024 December 31, 2023 Date Issued Maturity Date Principal Amount Carrying Amount (a) Principal Amount Carrying Amount (a) CSC Holdings Senior Notes: May 23, 2014 (g) $ — $ — $ 750,000 $ 742,746 October 18, 2018 April 1, 2028 7.500 % 4,118 4,115 4,118 4,114 November 27, 2018 April 1, 2028 7.500 % 1,045,882 1,044,982 1,045,882 1,044,933 July 10 and October 7, 2019 January 15, 2030 5.750 % 2,250,000 2,274,997 2,250,000 2,275,915 June 16 and August 17, 2020 December 1, 2030 4.625 % 2,325,000 2,358,046 2,325,000 2,359,078 May 13, 2021 November 15, 2031 5.000 % 500,000 498,563 500,000 498,525 6,125,000 6,180,703 6,875,000 6,925,311 CSC Holdings Senior Guaranteed Notes: September 23, 2016 April 15, 2027 5.500 % 1,310,000 1,307,868 1,310,000 1,307,709 January 29, 2018 February 1, 2028 5.375 % 1,000,000 996,162 1,000,000 995,940 January 24, 2019 February 1, 2029 6.500 % 1,750,000 1,748,177 1,750,000 1,748,098 June 16, 2020 December 1, 2030 4.125 % 1,100,000 1,096,607 1,100,000 1,096,499 August 17, 2020 February 15, 2031 3.375 % 1,000,000 997,631 1,000,000 997,556 May 13, 2021 November 15, 2031 4.500 % 1,500,000 1,495,715 1,500,000 1,495,598 April 25, 2023 May 15, 2028 11.250 % 1,000,000 994,334 1,000,000 994,072 January 25, 2024 January 31, 2029 11.750 % 2,050,000 2,031,568 — — 10,710,000 10,668,062 8,660,000 8,635,472 CSC Holdings Restricted Group Credit Facility: Revolving Credit Facility (b) July 13, 2027 7.678 % 1,600,000 1,596,861 825,000 821,632 Term Loan B (f) — — 1,520,483 1,518,530 Incremental Term Loan B-3 (f) — — 521,744 520,988 Incremental Term Loan B-5 (c) April 15, 2027 7.940 % 2,880,000 2,869,447 2,887,500 2,876,131 Incremental Term Loan B-6 (d) January 15, 2028 9.825 % 1,981,923 1,945,521 1,986,928 1,948,503 6,461,923 6,411,829 7,741,655 7,685,784 Lightpath Senior Notes: September 29, 2020 September 15, 2028 5.625 % 415,000 409,407 415,000 409,136 Lightpath Senior Secured Notes: September 29, 2020 September 15, 2027 3.875 % 450,000 444,759 450,000 444,410 Lightpath Term Loan (e) November 30, 2027 8.690 % 580,500 571,011 582,000 571,898 Lightpath Revolving Credit Facility — — — — 1,445,500 1,425,177 1,447,000 1,425,444 Finance lease obligations 201,250 201,250 228,356 228,356 Notes payable and supply chain financing 174,798 174,798 174,594 174,594 25,118,471 25,061,819 25,126,605 25,074,961 Less: current portion of credit facility debt (56,019) (56,019) (61,177) (61,177) Less: current portion of finance lease obligations (113,300) (113,300) (123,636) (123,636) Less: current portion of notes payable and supply chain financing (174,798) (174,798) (174,594) (174,594) (344,117) (344,117) (359,407) (359,407) Long-term debt $ 24,774,354 $ 24,717,702 $ 24,767,198 $ 24,715,554 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums. (b) At March 31, 2024, $137,512 of the revolving credit facility was restricted for certain letters of credit issued on our behalf and $737,488 of the $2,475,000 facility was undrawn and available, subject to covenant limitations. The revolving credit facility bears interest at a rate of Secured Overnight Financing Rate ("SOFR") (plus a Term SOFR credit adjustment spread of 0.10%) plus 2.25% per annum. (c) Incremental Term Loan B-5 requires quarterly installments of $7,500 and bears interest at a rate equal to Synthetic USD London Interbank Offered Rate ("LIBOR") plus 2.50% per annum. (d) Incremental Term Loan B-6 requires quarterly installments of $5,005 and bears interest at a rate equal to SOFR plus 4.50% per annum. (e) Pursuant to the loan agreement, interest will be calculated for any (i) SOFR loan, at a rate per annum equal to the Term SOFR (plus spread adjustments of 0.11448%, 0.26161% and 0.42826% for interest periods of one, three and six months, respectively) or (ii) the alternate base rate loan, at the alternative base rate as applicable, plus the applicable margin in each case, where the applicable margin is 2.25% per annum with respect to any alternate base rate loan and 3.25% per annum with respect to any SOFR loan. (f) The Term Loan B and Incremental Term Loan B-3 were repaid with proceeds from the issuance of senior guaranteed notes in January 2024. See discussion below. (g) The 5.250% senior notes were redeemed in February 2024 with proceeds from drawings under the CSC Holdings Revolving Credit Facility. See discussion below.
Schedule of Maturities of Long-term Debt	Summary of Debt Maturities The future principal payments under our various debt obligations outstanding as of March 31, 2024, including notes payable and supply chain financing, but excluding finance lease obligations, are as follows: 2024 $ 180,535 2025 92,297 2026 56,019 2027 6,741,520 2028 (a) 5,371,850 Thereafter 12,475,000

DERIVATIVE CONTRACTS AND COLL_2

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS (Tables)	3 Months Ended
	Mar. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Location of Assets and Liabilities Associated With Derivative Instruments Within the Condensed Consolidated Balance Sheets	The following table presents certain consolidated statement of operations data related to our derivative contracts and the underlying Comcast common stock: Three Months Ended March 31, 2024 2023 Loss on derivative contracts related to change in the value of equity derivative contracts related to Comcast common stock $ — $ (166,489) Change in the fair value of Comcast common stock included in gain (loss) on investments — 192,010 Gain (loss) on interest rate swap contracts, net 42,303 (14,429)
Schedule of Interest Rate Derivatives	Interest Rate Swap Contract The following is a summary of the terms of our interest rate swap contracts: Maturity Date Notional Amount Company Pays Company Receives CSC Holdings: January 2025 $500,000 Fixed rate of 1.3281% One-month SOFR January 2025 500,000 Fixed rate of 1.4223% One-month SOFR January 2025 500,000 Fixed rate of 1.2567% One-month SOFR December 2026 750,000 Fixed rate of 2.7129% One-month SOFR December 2026 750,000 Fixed rate of 2.6999% One-month SOFR Lightpath: December 2026 300,000 Fixed rate of 2.11% One-month SOFR December 2026 180,000 Fixed rate of 3.523% One-month SOFR
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location	The following represents the location of the assets associated with our derivative instruments within the consolidated balance sheets: Derivatives Not Designated as Hedging Instruments Balance Sheet Location Fair Value at March 31, 2024 December 31, 2023 Asset Derivatives: Interest rate swap contracts Derivative contracts $ 51,212 $ — Interest rate swap contracts Other assets, long-term 75,576 112,914 $ 126,788 $ 112,914

FAIR VALUE MEASUREMENT (Tables)

FAIR VALUE MEASUREMENT (Tables)	3 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table presents our financial assets and financial liabilities that are measured at fair value on a recurring basis and their classification under the fair value hierarchy: Fair Value March 31, 2024 December 31, 2023 Assets: Money market funds Level I $ 39,906 $ 49,541 Interest rate swap contracts Level II 126,788 112,914 Liabilities: Contingent consideration related to acquisition Level III 2,303 2,037
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments	March 31, 2024 December 31, 2023 Fair Value Carrying Estimated Carrying Estimated Credit facility debt Level II $ 6,982,840 $ 7,042,423 $ 8,257,682 $ 8,323,654 Senior guaranteed notes and senior secured notes Level II 11,112,821 9,428,313 9,079,882 7,784,288 Senior notes Level II 6,590,110 3,653,838 7,334,447 4,932,931 Notes payable and supply chain financing Level II 174,798 174,798 174,594 174,594 $ 24,860,569 $ 20,299,372 $ 24,846,605 $ 21,215,467 (a) Amounts are net of unamortized deferred financing costs and discounts/premiums.

SHARE-BASED COMPENSATION (Table

SHARE-BASED COMPENSATION (Tables)	3 Months Ended
	Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	The following table presents share-based compensation expense (benefit) and unrecognized compensation cost: Share-Based Compensation Unrecognized Compensation Cost as of March 31, 2024 Three Months Ended March 31, 2024 2023 Awards issued pursuant to LTIP: Stock option awards (a) $ (1,688) $ (5,585) $ 5,278 Performance stock units (a) (1,730) (7,198) 5,392 Restricted share units 9,752 3,396 80,984 Cash denominated performance awards 5,292 326 35,932 Other 2,131 6,438 4,251 $ 13,757 $ (2,623) $ 131,837 (a) The benefit for 2023 includes credits due to the modification of awards to certain former executive officers and other forfeitures.
Nonvested Restricted Stock Shares Activity	The following table summarizes activity related to restricted share units granted to our employees: Number of Units Balance at December 31, 2023 22,493,888 Granted 16,268,960 Vested (3,266,648) Forfeited (1,504,386) Balance at March 31, 2024 33,991,814
Share-Based Payment Arrangement, Performance Shares, Activity	The following table summarizes activity related to cash denominated performance award granted to our employees: Number of Units Balance at December 31, 2023 48,492,500 Forfeited (2,740,000) Balance at March 31, 2024 45,752,500

AFFILIATE AND RELATED PARTY T_2

AFFILIATE AND RELATED PARTY TRANSACTIONS (Tables)	3 Months Ended
	Mar. 31, 2024
Related Party Transactions [Abstract]
Summary of related party transactions	The following table summarizes the revenue and expenses related to services provided to or received from affiliates and related parties: Three Months Ended March 31, 2024 2023 Revenue $ 210 $ 78 Operating expenses: Programming and other direct costs (3,355) (2,642) Other operating expenses, net (12,289) (4,676) Operating expenses, net (15,644) (7,318) Net charges $ (15,434) $ (7,240) Capital expenditures $ 50,093 $ 28,134 Aggregate amounts that were due from and due to affiliates and related parties are summarized below: March 31, 2024 December 31, 2023 Due from: Altice Europe $ 137 $ 137 Other affiliates and related parties 270 270 $ 407 $ 407 Due to: Altice Europe $ 87,129 $ 71,523 $ 87,129 $ 71,523

DESCRIPTION OF BUSINESS AND R_2

DESCRIPTION OF BUSINESS AND RELATED MATTERS (Details)	3 Months Ended
	Mar. 31, 2024 segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of segments	1

Revenue Recognition and Defer_3

Revenue Recognition and Deferred Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Contract Assets and Liabilities [Line Items]
Revenues	$ 2,250,935	$ 2,293,978
Contract assets	$ 18,283		$ 18,109
Concentration Risk, Customer	10	10
concentration of customer to trade receivables	10%		10%
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
Contract Assets and Liabilities [Line Items]
Revenues	$ 916,994	$ 957,045
Video
Contract Assets and Liabilities [Line Items]
Revenues	755,594	770,601
Telephony
Contract Assets and Liabilities [Line Items]
Revenues	70,965	77,681
Mobile Services [Member]
Contract Assets and Liabilities [Line Items]
Revenues	24,893	15,526
Total Residential Revenue [Member]
Contract Assets and Liabilities [Line Items]
Revenues	1,768,446	1,820,853
Business Services and Wholesale [Member]
Contract Assets and Liabilities [Line Items]
Revenues	364,861	363,641
News and advertising
Contract Assets and Liabilities [Line Items]
Revenues	105,725	98,737
Other (a)
Contract Assets and Liabilities [Line Items]
Revenues	11,903	10,747
Franchise [Member]
Contract Assets and Liabilities [Line Items]
Franchise fees and other taxes and fees	$ 54,694	$ 56,455

Earnings Per Share (Details)

Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Basic weighted average common shares (in thousands)	457,369	454,686
Diluted weighted average common shares (in thousands)	457,369	455,594
Anti-dilutive shares		50,539
Share-based compensation awards whose performance metrics have not been achieved		6,921
Deferred cash-denominated award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements		663
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements		245

SUPPLEMENTAL CASH FLOW INFORM_3

SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Non-Cash Investing and Financing Activities:
Property and equipment accrued but unpaid	$ 320,389	$ 407,013
Notes payable for the purchase of equipment and other assets	36,278	70,440
Right-of-use assets acquired in exchange for finance lease obligations	8,290	35,175
Costs related to financing transactions accrued but unpaid	1,798
Supplemental Data:
Cash interest paid, net of capitalized interest	401,987	389,162
Income taxes paid, net	$ 11,151	$ 12,661

RESTRUCTURING AND OTHER EXPEN_3

RESTRUCTURING AND OTHER EXPENSE (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Restructuring Cost and Reserve [Line Items]
Loss on Contract Termination	$ 37,136	$ 0
Restructuring Reserve [Roll Forward]
Restructuring Charges	51,253	29,672
Restructuring expense relating to right of use operating leases	1,027	5
Transaction costs related to certain transactions not related to our operations	1,793	1,266
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring Charges	5,993	28,019
Facility Realignment and Other Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring Charges	$ 5,304	$ 382

INTANGIBLE ASSETS - Summary of

INTANGIBLE ASSETS - Summary of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 7,134,153		$ 7,133,947
Accumulated Amortization	(5,958,636)		(5,874,612)
Net Carrying Amount	1,175,517		1,259,335
Amortization of intangible assets	84,024	$ 105,695
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	6,073,152		6,073,152
Accumulated Amortization	(4,907,471)		(4,824,140)
Net Carrying Amount	1,165,681		1,249,012
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,010,300		1,010,300
Accumulated Amortization	(1,010,300)		(1,010,300)
Net Carrying Amount	0		0
Other amortizable intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	50,701		50,495
Accumulated Amortization	(40,865)		(40,172)
Net Carrying Amount	$ 9,836		$ 10,323
Minimum | Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	3 years
Minimum | Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	4 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	7 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
	Mar. 31, 2024	Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 84,024	$ 105,695

INTANGIBLE ASSETS - Indefinite-

INTANGIBLE ASSETS - Indefinite-lived assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Cable television franchises	$ 13,216,355	$ 13,216,355
Goodwill	$ 8,044,716	$ 8,044,716

DEBT - Credit Silo Combination

DEBT - Credit Silo Combination (Details) - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Principal amount	$ 25,118,471,000	$ 25,126,605,000
Face Amount of Senior Notes	6,125,000,000	6,875,000,000
Carrying amount of Senior Notes	6,180,703,000	6,925,311,000
Face Amount of Senior Guaranteed Notes	10,710,000,000	8,660,000,000
Carrying amount of Senior Guaranteed Notes	10,668,062,000	8,635,472,000
Face amount of Credit Facility Debt	6,461,923,000	7,741,655,000
Carrying value of Credit Facility Debt	6,411,829,000	7,685,784,000
Long-term debt	25,061,819,000	25,074,961,000
Finance Lease, Liability	201,250,000	228,356,000
Debt	344,117,000	359,407,000
Finance Lease, Liability, Current	113,300,000	123,636,000
Long-term debt, net of current maturities	24,717,702,000	24,715,554,000
Cablevision Lightpath
Debt Instrument [Line Items]
Carrying amount of Senior Notes and Senior Secured Notes	1,425,177,000	1,425,444,000
Face Amount of Senior Notes and Senior Secured Notes	1,445,500,000	1,447,000,000
Loans Payable
Debt Instrument [Line Items]
Long-term debt	174,798,000	174,594,000
Short-term Debt
Debt Instrument [Line Items]
Principal amount	344,117,000	359,407,000
Debt	344,117,000	359,407,000
Credit facility
Debt Instrument [Line Items]
Principal amount	56,019,000	61,177,000
Debt		61,177,000
Incremental Term Loan B-3 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	0	521,744,000
Credit facility	$ 0	520,988,000
5.25% Notes due June 1, 2024
Debt Instrument [Line Items]
Stated interest rate	5.25%
CSC Holdings Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount	$ 1,600,000,000	825,000,000
Stated interest rate	7.678%
Credit facility	$ 1,596,861,000	821,632,000
CSC Holdings Term Loan B | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	0	1,520,483,000
Credit facility	0	1,518,530,000
Incremental Term Loan B-5 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 2,880,000,000	2,887,500,000
Stated interest rate	7.94%
Credit facility	$ 2,869,447,000	2,876,131,000
Loans Payable
Debt Instrument [Line Items]
Principal amount	174,798,000	174,594,000
Long-term debt		174,594,000
Cablevision Lightpath Term B Loan | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 580,500,000	582,000,000
Stated interest rate	8.69%
Credit facility	$ 571,011,000	571,898,000
Cablevision Lightpath Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount	0	0
Credit facility	0	0
Incremental Term Loan B-6 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 1,981,923,000	1,986,928,000
Stated interest rate	9.825%
Credit facility	$ 1,945,521,000	1,948,503,000
Senior Notes | 5.25% Notes due June 1, 2024
Debt Instrument [Line Items]
Principal amount		750,000,000
Outstanding debt	0	742,746,000
Senior Notes | Cablevision 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Principal amount	4,118,000	4,118,000
Outstanding debt	$ 4,115,000	4,114,000
Stated interest rate	7.50%
Senior Notes | CSC Holdings 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Principal amount	$ 1,045,882,000	1,045,882,000
Outstanding debt	$ 1,044,982,000	1,044,933,000
Stated interest rate	7.50%
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
Outstanding debt	$ 2,274,997,000	2,275,915,000
Stated interest rate	5.75%
Senior Notes | CSC Holdings 4.625% Notes due December 1, 2030
Debt Instrument [Line Items]
Principal amount	$ 2,325,000,000	2,325,000,000
Outstanding debt	$ 2,358,046,000	2,359,078,000
Stated interest rate	4.625%
Senior Notes | Cablevision Lightpath LLC 5.625% Notes due September 15, 2028
Debt Instrument [Line Items]
Principal amount	$ 415,000,000	415,000,000
Outstanding debt	$ 409,407,000	409,136,000
Stated interest rate	5.625%
Senior Notes | CSC Holdings 5.000% Notes due November 15, 2031
Debt Instrument [Line Items]
Principal amount	$ 500,000,000	500,000,000
Outstanding debt	$ 498,563,000	498,525,000
Stated interest rate	5%
Secured Debt [Member] | 8.0% Notes due April 15, 2020
Debt Instrument [Line Items]
Principal amount	$ 1,000,000,000	1,000,000,000
Stated interest rate	3.375%
Secured Debt [Member] | 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Principal amount	$ 1,310,000,000	1,310,000,000
Stated interest rate	5.50%
Secured Debt [Member] | 5.375% Senior Guaranteed Notes Due February 1, 2028
Debt Instrument [Line Items]
Principal amount	$ 1,000,000,000	1,000,000,000
Stated interest rate	5.375%
Secured Debt [Member] | CSC Holdings 6.500% Notes due February 1, 2029
Debt Instrument [Line Items]
Principal amount	$ 1,750,000,000	1,750,000,000
Stated interest rate	6.50%
Secured Debt [Member] | CSC Holdings 4.125% Notes due December 1, 2030
Debt Instrument [Line Items]
Principal amount	$ 1,100,000,000	1,100,000,000
Stated interest rate	4.125%
Secured Debt [Member] | Cablevision Lightpath LLC 3.875% Notes due September 15, 2027
Debt Instrument [Line Items]
Principal amount	$ 450,000,000	450,000,000
Outstanding debt	$ 444,759,000	444,410,000
Stated interest rate	3.875%
Secured Debt [Member] | CSC Holdings 4.500% Senior Guaranteed Notes due November 15, 2021
Debt Instrument [Line Items]
Principal amount	$ 1,500,000,000	1,500,000,000
Stated interest rate	4.50%
Secured Debt [Member] | CSC Holdings 11.2500% Senior Guaranteed Notes due May 15, 2028
Debt Instrument [Line Items]
Principal amount	$ 1,000,000,000	1,000,000,000
Stated interest rate	11.25%
Secured Debt [Member] | CSC Holdings 11.7400% Senior Guaranteed Notes due Jan 31, 2029
Debt Instrument [Line Items]
Principal amount	$ 2,050,000,000
Stated interest rate	11.75%
Long-term Debt
Debt Instrument [Line Items]
Principal amount	$ 24,774,354,000	24,767,198,000
Long-term debt, net of current maturities	24,717,702,000	24,715,554,000
Senior Subordinated Notes | 8.0% Notes due April 15, 2020
Debt Instrument [Line Items]
Outstanding debt	997,631,000	997,556,000
Senior Subordinated Notes | 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Outstanding debt	1,307,868,000	1,307,709,000
Senior Subordinated Notes | 5.375% Senior Guaranteed Notes Due February 1, 2028
Debt Instrument [Line Items]
Outstanding debt	996,162,000	995,940,000
Senior Subordinated Notes | CSC Holdings 6.500% Notes due February 1, 2029
Debt Instrument [Line Items]
Outstanding debt	1,748,177,000	1,748,098,000
Senior Subordinated Notes | CSC Holdings 4.125% Notes due December 1, 2030
Debt Instrument [Line Items]
Outstanding debt	1,096,607,000	1,096,499,000
Senior Subordinated Notes | CSC Holdings 4.500% Senior Guaranteed Notes due November 15, 2021
Debt Instrument [Line Items]
Outstanding debt	1,495,715,000	1,495,598,000
Senior Subordinated Notes | CSC Holdings 11.2500% Senior Guaranteed Notes due May 15, 2028
Debt Instrument [Line Items]
Outstanding debt	994,334,000	$ 994,072,000
Senior Subordinated Notes | CSC Holdings 11.7400% Senior Guaranteed Notes due Jan 31, 2029
Debt Instrument [Line Items]
Outstanding debt	$ 2,031,568,000

DEBT - Credit Facilities Outsta

DEBT - Credit Facilities Outstanding (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Principal Amount	$ 25,118,471	$ 25,126,605
Debt Disclosure [Text Block]	DEBT The following table provides details of our outstanding debt: Interest Rate at March 31, 2024 March 31, 2024 December 31, 2023 Date Issued Maturity Date Principal Amount Carrying Amount (a) Principal Amount Carrying Amount (a) CSC Holdings Senior Notes: May 23, 2014 (g) $ — $ — $ 750,000 $ 742,746 October 18, 2018 April 1, 2028 7.500 % 4,118 4,115 4,118 4,114 November 27, 2018 April 1, 2028 7.500 % 1,045,882 1,044,982 1,045,882 1,044,933 July 10 and October 7, 2019 January 15, 2030 5.750 % 2,250,000 2,274,997 2,250,000 2,275,915 June 16 and August 17, 2020 December 1, 2030 4.625 % 2,325,000 2,358,046 2,325,000 2,359,078 May 13, 2021 November 15, 2031 5.000 % 500,000 498,563 500,000 498,525 6,125,000 6,180,703 6,875,000 6,925,311 CSC Holdings Senior Guaranteed Notes: September 23, 2016 April 15, 2027 5.500 % 1,310,000 1,307,868 1,310,000 1,307,709 January 29, 2018 February 1, 2028 5.375 % 1,000,000 996,162 1,000,000 995,940 January 24, 2019 February 1, 2029 6.500 % 1,750,000 1,748,177 1,750,000 1,748,098 June 16, 2020 December 1, 2030 4.125 % 1,100,000 1,096,607 1,100,000 1,096,499 August 17, 2020 February 15, 2031 3.375 % 1,000,000 997,631 1,000,000 997,556 May 13, 2021 November 15, 2031 4.500 % 1,500,000 1,495,715 1,500,000 1,495,598 April 25, 2023 May 15, 2028 11.250 % 1,000,000 994,334 1,000,000 994,072 January 25, 2024 January 31, 2029 11.750 % 2,050,000 2,031,568 — — 10,710,000 10,668,062 8,660,000 8,635,472 CSC Holdings Restricted Group Credit Facility: Revolving Credit Facility (b) July 13, 2027 7.678 % 1,600,000 1,596,861 825,000 821,632 Term Loan B (f) — — 1,520,483 1,518,530 Incremental Term Loan B-3 (f) — — 521,744 520,988 Incremental Term Loan B-5 (c) April 15, 2027 7.940 % 2,880,000 2,869,447 2,887,500 2,876,131 Incremental Term Loan B-6 (d) January 15, 2028 9.825 % 1,981,923 1,945,521 1,986,928 1,948,503 6,461,923 6,411,829 7,741,655 7,685,784 Lightpath Senior Notes: September 29, 2020 September 15, 2028 5.625 % 415,000 409,407 415,000 409,136 Lightpath Senior Secured Notes: September 29, 2020 September 15, 2027 3.875 % 450,000 444,759 450,000 444,410 Lightpath Term Loan (e) November 30, 2027 8.690 % 580,500 571,011 582,000 571,898 Lightpath Revolving Credit Facility — — — — 1,445,500 1,425,177 1,447,000 1,425,444 Finance lease obligations 201,250 201,250 228,356 228,356 Notes payable and supply chain financing 174,798 174,798 174,594 174,594 25,118,471 25,061,819 25,126,605 25,074,961 Less: current portion of credit facility debt (56,019) (56,019) (61,177) (61,177) Less: current portion of finance lease obligations (113,300) (113,300) (123,636) (123,636) Less: current portion of notes payable and supply chain financing (174,798) (174,798) (174,594) (174,594) (344,117) (344,117) (359,407) (359,407) Long-term debt $ 24,774,354 $ 24,717,702 $ 24,767,198 $ 24,715,554 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums. (b) At March 31, 2024, $137,512 of the revolving credit facility was restricted for certain letters of credit issued on our behalf and $737,488 of the $2,475,000 facility was undrawn and available, subject to covenant limitations. The revolving credit facility bears interest at a rate of Secured Overnight Financing Rate ("SOFR") (plus a Term SOFR credit adjustment spread of 0.10%) plus 2.25% per annum. (c) Incremental Term Loan B-5 requires quarterly installments of $7,500 and bears interest at a rate equal to Synthetic USD London Interbank Offered Rate ("LIBOR") plus 2.50% per annum. (d) Incremental Term Loan B-6 requires quarterly installments of $5,005 and bears interest at a rate equal to SOFR plus 4.50% per annum. (e) Pursuant to the loan agreement, interest will be calculated for any (i) SOFR loan, at a rate per annum equal to the Term SOFR (plus spread adjustments of 0.11448%, 0.26161% and 0.42826% for interest periods of one, three and six months, respectively) or (ii) the alternate base rate loan, at the alternative base rate as applicable, plus the applicable margin in each case, where the applicable margin is 2.25% per annum with respect to any alternate base rate loan and 3.25% per annum with respect to any SOFR loan. (f) The Term Loan B and Incremental Term Loan B-3 were repaid with proceeds from the issuance of senior guaranteed notes in January 2024. See discussion below. (g) The 5.250% senior notes were redeemed in February 2024 with proceeds from drawings under the CSC Holdings Revolving Credit Facility. See discussion below. For financing purposes, we have two debt silos: CSC Holdings and Lightpath. The CSC Holdings silo is structured as a restricted group (the "CSC Holdings Restricted Group") and an unrestricted group, which includes certain designated subsidiaries and investments. The CSC Holdings Restricted Group is comprised of CSC Holdings and substantially all of its wholly-owned operating subsidiaries excluding Cablevision Lightpath which became an unrestricted subsidiary in September 2020. These CSC Holdings Restricted Group subsidiaries are subject to the covenants and restrictions of the credit facility and indentures governing the notes issued by CSC Holdings. The Lightpath silo includes all of its operating subsidiaries which are subject to the covenants and restrictions of the credit facility and indentures governing the notes issued by Lightpath. CSC Holdings Revolving Credit Facility During the three months ended March 31, 2024, CSC Holdings borrowed $900,000 under its revolving credit facility and repaid $125,000 of amounts outstanding under the revolving credit facility. CSC Holdings Senior Guaranteed Notes and Senior Notes In January 2024, CSC Holdings issued $2,050,000 in aggregate principal amount of senior guaranteed notes due 2029. These notes bear interest at a rate of 11.750% and will mature on January 31, 2029. The proceeds from the sale of these notes were used to (i) repay the outstanding principal balance of the Term Loan B, (ii) repay the outstanding principal balance of the Incremental Term Loan B-3, and (iii) pay the fees, costs and expenses associated with these transactions. In connection with these transactions, we recorded a write-off of the outstanding deferred financing costs on these loans of $2,598. In February 2024, we redeemed the CSC Holdings 5.250% Senior Notes and 5.250% Series B Senior Notes due June 2024 with proceeds under the CSC Revolving Credit Facility. In connection with these transactions, we recorded a write-off of the outstanding deferred financing costs on these notes of $4,437. Lightpath Credit Facility In February 2024, Lightpath entered into an extension amendment (the "Extension Amendment") to its amended credit agreement (the "Amended Credit Agreement") that provides for, among other things, (a) an extension of the scheduled maturity date with respect to the 2027 Revolving Credit Commitments (as defined in the Extension Amendment) under the credit agreement to the date (the "New Maturity Date") that is the later of (x) November 30, 2025 and (y) the earlier of (i) June 15, 2027 and (ii) the date that is five business days after any Extension Breach Date (as defined in the Amended Credit Agreement) and (b) incremental revolving credit commitments in an aggregate principal amount of $15,000 which shall be of the same class and type as the 2027 Revolving Credit Commitments and will, for the avoidance of doubt, mature on the New Maturity Date. After giving effect to the Extension Amendment, the aggregate principal amount of revolving loan commitments available under the Amended Credit Agreement equaled $115,000. Under the Extension Amendment, the aggregate principal amount of 2027 Revolving Credit Commitments equaled $95,000 and the aggregate principal amount of 2025 Revolving Credit Commitments (as defined in the Extension Amendment) equaled $20,000. Interest will be calculated at a rate per annum equal to the adjusted Term SOFR rate or the alternate base rate, as applicable, plus the applicable margin, where the applicable margin is (i) with respect to any alternate base rate loan, 2.25% per annum and (ii) with respect to any Term SOFR loan, 3.25% per annum. Debt Compliance As of March 31, 2024, CSC Holdings and Lightpath were in compliance with applicable financial covenants under their respective credit facilities and with applicable financial covenants under each respective indenture by which the senior guaranteed notes, senior secured notes and senior notes were issued. Supply Chain Financing Arrangement We have a supply chain financing arrangement with a financial institution with credit availability of $175,000 that is used to finance certain of our property and equipment purchases. This arrangement extends our repayment terms beyond a vendor’s original invoice due dates (for up to one year) and as such are classified as debt on our consolidated balance sheets. The following is a rollforward of the outstanding balances relating to our supply chain financing arrangement: Balance as of December 31, 2023 $ 174,454 Purchases financed 36,278 Repayments (35,934) Balance as of March 31, 2024 $ 174,798 Summary of Debt Maturities The future principal payments under our various debt obligations outstanding as of March 31, 2024, including notes payable and supply chain financing, but excluding finance lease obligations, are as follows: 2024 $ 180,535 2025 92,297 2026 56,019 2027 6,741,520 2028 (a) 5,371,850 Thereafter 12,475,000 (a) Includes $1,906,850 principal amount related to the CSC Holdings' Incremental Term Loan B-6 that is due on the earlier of (i) January 15, 2028 and (ii) April 15, 2027 if, as of such date, any Incremental Term Loan B-5 borrowings are still outstanding, unless the Incremental Term Loan B-5 maturity date has been extended to a date falling after January 15, 2028.
2027 Revolving Credit Commitments
Debt Instrument [Line Items]
Line of credit facility, periodic payment amount	$ 95
2025 Revolving Credit Commitments
Debt Instrument [Line Items]
Line of credit facility, periodic payment amount	20
CSC Holdings Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Letters of credit outstanding	137,512
Line of credit facility, remaining borrowing capacity	737,488
Line of Credit Facility, Maximum Borrowing Capacity	2,475
Principal Amount	1,600,000	825,000
Cablevision Lightpath Term B Loan | Secured Debt [Member]
Debt Instrument [Line Items]
Principal Amount	$ 580,500	582,000
Cablevision Lightpath Term B Loan | Secured Debt [Member] | Alternate base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
Cablevision Lightpath Term B Loan | Secured Debt [Member] | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	3.25%
5.25% Notes due June 1, 2024
Debt Instrument [Line Items]
Stated interest rate	5.25%
Cablevision Lightpath Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 115
Line of Credit Facility, Increase (Decrease), Net	15
Principal Amount	0	0
Supply chain financing
Debt Instrument [Line Items]
Principal Amount	174,798	$ 174,454
Proceeds from Loans	36,278
Repayments of Debt	$ (35,934)

DEBT - Senior Guaranteed Notes,

DEBT - Senior Guaranteed Notes, Senior Secured Notes, and Senior Notes and Debentures (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Principal amount	$ 25,118,471	$ 25,126,605
Supply chain financing arrangement credit limit	$ 175,000
Secured Debt [Member] | Synthetic LIBOR Rate (one month)
Debt Instrument [Line Items]
Basis spread on variable rate	0.11448%
Secured Debt [Member] | Synthetic LIBOR Rate (three months)
Debt Instrument [Line Items]
Basis spread on variable rate	0.26161%
Secured Debt [Member] | Synthetic LIBOR Rate (six months)
Debt Instrument [Line Items]
Basis spread on variable rate	0.42826%
Cablevision Lightpath Term B Loan | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 580,500	$ 582,000
Cablevision Lightpath Term B Loan | Secured Debt [Member] | Alternate base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%

DEBT - Summary of Debt Maturiti

DEBT - Summary of Debt Maturities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
2024	$ 180,535
Long-Term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Two	92,297
2026	56,019
2027	6,741,520
Long-Term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Five	5,371,850
Thereafter	12,475,000
Principal Amount	25,118,471	$ 25,126,605
Revolving Credit Facility | CSC Holdings Revolving Credit Facility
Debt Instrument [Line Items]
Principal Amount	1,600,000	825,000
Secured Debt [Member] | Incremental Term Loan B-6
Debt Instrument [Line Items]
Long-Term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Five	1,906,850
Principal Amount	1,981,923	1,986,928
Line of credit facility, periodic payment amount	5,005
Secured Debt [Member] | Incremental Term Loan B-5
Debt Instrument [Line Items]
Principal Amount	2,880,000	2,887,500
Line of credit facility, periodic payment amount	7,500
Secured Debt [Member] | Incremental Term Loan B-3
Debt Instrument [Line Items]
Principal Amount	$ 0	$ 521,744
Secured Debt [Member] | Incremental Term Loan B-3 | Synthetic LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	250%
Secured Debt [Member] | Incremental Term Loan B-3 | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	4.50%

DEBT - CSC Holdings Credit Faci

DEBT - CSC Holdings Credit Facilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Debt Instrument [Line Items]
Principal amount	$ 25,118,471		$ 25,126,605
Loss (gain) on extinguishment of debt and write-off of deferred financing costs	7,035	$ (4,393)
Proceeds from long-term debt	2,950,000	350,000
Repayments of line of credit	2,967,306	268,936
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	(7,035)	4,393
CSC Holdings
Debt Instrument [Line Items]
Loss (gain) on extinguishment of debt and write-off of deferred financing costs	7,035	(4,393)
Dividends, Cash	3,775	83
Proceeds from long-term debt	2,950,000	350,000
Repayments of line of credit	2,967,306	268,936
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	(7,035)	$ 4,393
CSC Holdings Term Loans B and B-3
Debt Instrument [Line Items]
Write-off of deferred financings costs	$ 2,598
Secured Debt [Member] | Synthetic LIBOR Rate (one month)
Debt Instrument [Line Items]
Basis spread on variable rate	0.11448%
Secured Debt [Member] | Synthetic LIBOR Rate (three months)
Debt Instrument [Line Items]
Basis spread on variable rate	0.26161%
Secured Debt [Member] | Synthetic LIBOR Rate (six months)
Debt Instrument [Line Items]
Basis spread on variable rate	0.42826%
Secured Debt [Member] | Cablevision Lightpath Term B Loan
Debt Instrument [Line Items]
Principal amount	$ 580,500		582,000
Secured Debt [Member] | Cablevision Lightpath Term B Loan | Alternate base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
Secured Debt [Member] | Cablevision Lightpath Term B Loan | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	3.25%
Revolving Credit Facility | CSC Holdings Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,475
Principal amount	1,600,000		$ 825,000
Proceeds from long-term debt	900
Repayments of line of credit	$ 125

DEBT - Senior Guaranteed Notes

DEBT - Senior Guaranteed Notes and Senior Notes and Debentures (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Debt Instrument [Line Items]
Principal amount	$ 25,118,471,000		$ 25,126,605,000
Face Amount of Senior Guaranteed Notes	10,710,000,000		8,660,000,000
Carrying amount of Senior Guaranteed Notes	10,668,062,000		8,635,472,000
Face amount of Credit Facility Debt	6,461,923,000		7,741,655,000
Carrying value of Credit Facility Debt	6,411,829,000		7,685,784,000
Finance Lease, Liability	201,250,000		228,356,000
Long-term debt	25,061,819,000		25,074,961,000
Debt	344,117,000		359,407,000
Finance Lease, Liability, Current	113,300,000		123,636,000
Long-term debt, net of current maturities	24,717,702,000		24,715,554,000
Repayments of line of credit	2,967,306,000	$ 268,936,000
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	(7,035,000)	$ 4,393,000
Loans Payable
Debt Instrument [Line Items]
Long-term debt	174,798,000		174,594,000
Short-term Debt
Debt Instrument [Line Items]
Principal amount	344,117,000		359,407,000
Debt	$ 344,117,000		359,407,000
5.25% Notes due June 1, 2024
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Write-off of deferred financings costs	$ 4,437,000
Incremental Term Loan B-3 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	0		521,744,000
Credit facility	0		520,988,000
Incremental Term Loan B-5 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 2,880,000,000		2,887,500,000
Stated interest rate	7.94%
Credit facility	$ 2,869,447,000		2,876,131,000
Loans Payable
Debt Instrument [Line Items]
Principal amount	174,798,000		174,594,000
Long-term debt			174,594,000
CSC Holdings Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount	$ 1,600,000,000		825,000,000
Stated interest rate	7.678%
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,475,000
Credit facility	1,596,861,000		821,632,000
Repayments of line of credit	$ 125,000
Secured Debt [Member] | 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.50%
Principal amount	$ 1,310,000,000		1,310,000,000
Secured Debt [Member] | 5.375% Senior Guaranteed Notes Due February 1, 2028
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.375%
Principal amount	$ 1,000,000,000		1,000,000,000
Secured Debt [Member] | 8.0% Notes due April 15, 2020
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.375%
Principal amount	$ 1,000,000,000		1,000,000,000
Secured Debt [Member] | CSC Holdings 6.500% Notes due February 1, 2029
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.50%
Principal amount	$ 1,750,000,000		1,750,000,000
Secured Debt [Member] | CSC Holdings 11.7400% Senior Guaranteed Notes due Jan 31, 2029
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	11.75%
Principal amount	$ 2,050,000,000
Long-term Debt
Debt Instrument [Line Items]
Principal amount	24,774,354,000		24,767,198,000
Long-term debt, net of current maturities	24,717,702,000		24,715,554,000
Senior Notes | 5.25% Notes due June 1, 2024
Debt Instrument [Line Items]
Principal amount			750,000,000
Outstanding debt	$ 0		742,746,000
Senior Notes | CSC Holdings 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.50%
Principal amount	$ 1,045,882,000		1,045,882,000
Outstanding debt	$ 1,044,982,000		1,044,933,000
Senior Notes | Cablevision 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.50%
Principal amount	$ 4,118,000		4,118,000
Outstanding debt	$ 4,115,000		4,114,000
Senior Notes | CSC Holdings 5.750% Notes due January 15, 2030
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.75%
Principal amount	$ 2,250,000,000		2,250,000,000
Outstanding debt	$ 2,274,997,000		$ 2,275,915,000

DERIVATIVE CONTRACTS AND COLL_3

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Location of Assets and Liabilities Within the Consolidated Balance Sheets (Details) - Not Designated as Hedging Instruments - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 126,788	$ 112,914
Interest Rate Swap | Current derivative contracts
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	51,212	0
Interest Rate Swap | Long-term derivative contracts
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 75,576	$ 112,914

DERIVATIVE CONTRACTS AND COLL_4

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Jan. 24, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Cash received from settlement of collateralized indebtedness			$ 50,500
Investment Income, Dividend		$ 11,598
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	$ (7,035)	$ 4,393

DERIVATIVE CONTRACTS AND COLL_5

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Gain (Loss) Within Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Loss on derivative contracts, net	$ 0	$ (166,489)
Gain (Loss) on Investments	292	192,010
Gain (loss) on interest rate swap contracts, net	42,303	(14,429)
Comcast stock
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Investments	0	192,010
Notes related to derivative contracts
Derivative Instruments, Gain (Loss) [Line Items]
Loss on derivative contracts, net	$ 0	$ (166,489)

DERIVATIVE CONTRACTS AND COLL_6

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Schedule of Interest Rate Derivatives (Details) - Interest Rate Swap $ in Thousands	Mar. 31, 2024 USD ($)
Derivative Instrument Maturity Date 2026, Fixed 2.161% | Cablevision Lightpath
Derivative [Line Items]
Derivative, Notional Amount	$ 300,000
Company Pays	2.11%
Derivative Instrument Maturity Date 2026, Fixed 3.523% | Cablevision Lightpath
Derivative [Line Items]
Derivative, Notional Amount	$ 180,000
Derivative Instrument Maturity Date 2026, Fixed 3.523% | Cablevision Lightpath
Derivative [Line Items]
Company Pays	3.523%
Derivative Instrument Maturity Date 2025, Fixed 1.3281% Amended
Derivative [Line Items]
Derivative, Notional Amount	$ 500,000
Company Pays	1.3281%
Derivative Instrument Maturity Date 2025, Fixed 1.4223% Amended
Derivative [Line Items]
Derivative, Notional Amount	$ 500,000
Company Pays	1.4223%
Derivative Instrument Maturity Date 2025, Fixed 1.2567% Amended
Derivative [Line Items]
Derivative, Notional Amount	$ 500,000
Company Pays	1.2567%
Derivative Instrument Maturity Date 2025, Fixed 2.7129% Amended
Derivative [Line Items]
Derivative, Notional Amount	$ 750,000
Company Pays	2.7129%
Derivative Instrument Maturity Date 2025, Fixed 2.6999% Amended
Derivative [Line Items]
Derivative, Notional Amount	$ 750,000
Company Pays	2.6999%

FAIR VALUE MEASUREMENT - Assets

FAIR VALUE MEASUREMENT - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Liabilities:
Business Combination, Contingent Consideration, Liability	$ 2,303	$ 2,037
Carrying Amount
Liabilities:
Debt, fair value	24,860,569	24,846,605
Estimated Fair Value
Liabilities:
Debt, fair value	20,299,372	21,215,467
Fair Value, Inputs, Level 2 [Member] | Carrying Amount | Credit facility debt | CSC Holdings
Liabilities:
Debt, fair value	6,982,840	8,257,682
Fair Value, Inputs, Level 2 [Member] | Carrying Amount | Senior guaranteed notes and senior secured notes | CSC Holdings
Liabilities:
Debt, fair value	11,112,821	9,079,882
Fair Value, Inputs, Level 2 [Member] | Carrying Amount | Senior notes | CSC Holdings
Liabilities:
Debt, fair value	6,590,110	7,334,447
Fair Value, Inputs, Level 2 [Member] | Carrying Amount | Notes payable and supply chain financing | CSC Holdings
Liabilities:
Debt, fair value	174,798	174,594
Fair Value, Inputs, Level 2 [Member] | Estimated Fair Value | Credit facility debt | CSC Holdings
Liabilities:
Debt, fair value	7,042,423	8,323,654
Fair Value, Inputs, Level 2 [Member] | Estimated Fair Value | Senior guaranteed notes and senior secured notes | CSC Holdings
Liabilities:
Debt, fair value	9,428,313	7,784,288
Fair Value, Inputs, Level 2 [Member] | Estimated Fair Value | Senior notes | CSC Holdings
Liabilities:
Debt, fair value	3,653,838	4,932,931
Fair Value, Inputs, Level 2 [Member] | Estimated Fair Value | Notes payable and supply chain financing | CSC Holdings
Liabilities:
Debt, fair value	174,798	174,594
Interest rate swap contracts | Fair Value Measured on a Recurring Basis | Fair Value, Inputs, Level 2 [Member]
Assets:
Derivative asset	126,788	112,914
Money market funds | Fair Value Measured on a Recurring Basis | Fair Value, Inputs, Level 1 [Member]
Assets:
Money market funds	$ 39,906	$ 49,541

INCOME TAXES - Income Tax Expen

INCOME TAXES - Income Tax Expense (Benefit) Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Tax Expense (Benefit)	$ 2,924	$ 30,372
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(9,972)	61,542
CSC Holdings
Income Tax Expense (Benefit)	2,924	30,372
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ (9,972)	$ 61,542

SHARE-BASED COMPENSATION - Sche

SHARE-BASED COMPENSATION - Schedule of Share-Based Compensation Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share based compensation expense	$ 13,757	$ (2,623)
Share based compensation - Unrecognized deferred compensation cost	131,837
Amount of Deferred Cash Performance Awards Outstanding	35,932
Stock options | 2017 LTIP
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share based compensation expense	(1,688)	(5,585)
Share based compensation - Unrecognized deferred compensation cost	5,278
Performance Shares | 2017 LTIP
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share based compensation expense	(1,730)	(7,198)
Share based compensation - Unrecognized deferred compensation cost	5,392
Restricted Stock Units | 2019 LTIP
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share based compensation expense	9,752	3,396
Share based compensation - Unrecognized deferred compensation cost	80,984
Deferred cash-denominated award | 2019 LTIP
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share based compensation expense	5,292	326
Other awards | 2019 LTIP
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share based compensation expense	2,131	$ 6,438
Share based compensation - Unrecognized deferred compensation cost	$ 4,251

SHARE-BASED COMPENSATION - Perf

SHARE-BASED COMPENSATION - Performance and Restricted Unit Award (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount of Deferred Cash Performance Awards Outstanding	$ 35,932
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout amount based on meeting target values for deferred cash performance awards	200%
2017 LTIP | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments, outstanding (shares)	33,991,814		22,493,888
Vested (in shares)	(3,266,648)
Forfeited (in shares)	(1,504,386)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted		16,268,960
2017 LTIP | Deferred cash-denominated award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments, outstanding (shares)	45,752,500		48,492,500
Forfeited (in shares)	(2,740,000)

SHARE-BASED COMPENSATION - Ligh

SHARE-BASED COMPENSATION - Lightpath Plan Activity (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value of award units | $	$ 29,438
2021 Lightpath Incentive Plan | Class A-1 management incentive units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	494,286
2021 Lightpath Incentive Plan | Class A-2 management incentive units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	250,829

AFFILIATE AND RELATED PARTY T_3

AFFILIATE AND RELATED PARTY TRANSACTIONS - Revenue and Related Charges (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating expenses:
Revenues	$ 2,250,935	$ 2,293,978
Programming and other direct costs (including charges from affiliates of $3,355 and $2,642, respectively) (See Note 14)	743,887	771,719
Other Cost and Expense, Operating	(674,250)	(651,245)
Related Party
Operating expenses:
Revenues	210	78
Programming and other direct costs (including charges from affiliates of $3,355 and $2,642, respectively) (See Note 14)	3,355	2,642
Other Cost and Expense, Operating	(12,289)	(4,676)
Related Party Transaction, Cost and Expenses	(15,644)	(7,318)
Operating Costs and Expenses	(15,434)	(7,240)
Capital Expenditures	$ 50,093	$ 28,134

AFFILIATE AND RELATED PARTY T_4

AFFILIATE AND RELATED PARTY TRANSACTIONS - Amounts Due From and Due to Related Parties (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Related Party Transaction [Line Items]
Prepaid Expense and Other Assets, Current	$ 258,284		$ 174,859
Other current liabilities ($87,129 and $71,523 due to affiliates, respectively)	408,871		470,096
CSC Holdings
Related Party Transaction [Line Items]
Prepaid Expense and Other Assets, Current	258,284		174,859
Other current liabilities ($87,129 and $71,523 due to affiliates, respectively)	408,871		470,097
Dividends, Cash	(3,775)	$ (83)
Related Party
Related Party Transaction [Line Items]
Prepaid Expense and Other Assets, Current	407		407
Other current liabilities ($87,129 and $71,523 due to affiliates, respectively)	87,129		71,523
Related Party | CSC Holdings
Related Party Transaction [Line Items]
Prepaid Expense and Other Assets, Current			407
Other current liabilities ($87,129 and $71,523 due to affiliates, respectively)	87,129		71,523
Related Party | Altice Management Americas
Related Party Transaction [Line Items]
Prepaid Expense and Other Assets, Current	137		137
Related Party | Other Related Party
Related Party Transaction [Line Items]
Prepaid Expense and Other Assets, Current	270		270
Related Party | Altice Management International
Related Party Transaction [Line Items]
Other current liabilities ($87,129 and $71,523 due to affiliates, respectively)	$ 87,129		$ 71,523

AFFILIATE AND RELATED PARTY T_5

AFFILIATE AND RELATED PARTY TRANSACTIONS - Narrative (Details) - CSC Holdings - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Related Party Transaction [Line Items]
Dividends, Cash	$ 3,775	$ 83
Non-cash distributions to parent	5,858
Additional Paid-in Capital [Member]
Related Party Transaction [Line Items]
Dividends, Cash	3,775
Non-cash distributions to parent	$ 5,858	$ 1

COMMITMENTS AND CONTINGENCIES -

COMMITMENTS AND CONTINGENCIES - Narrative (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Warner Matter
Loss Contingencies [Line Items]
Amount of copyrighted works infringed on	$ 10,700
UMG Matter
Loss Contingencies [Line Items]
Amount of copyrighted works infringed on	$ 8,000