CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Income from continuing operations	$ 21,089	$ 144,480
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Depreciation and amortization (including impairments)	454,198	427,536
Gain on investments, net	(96,669)	(177,438)
Loss on equity derivative contracts, net	52,510	127,331
Write-off of deferred financing costs	6,637	0
Amortization of deferred financing costs and discounts on indebtedness	13,432	19,350
Share-based compensation expense related to equity classified awards	28,292	23,681
Deferred income taxes	8,645	95,628
Provision for doubtful accounts	27,262	21,085
Changes in other assets and liabilities	(13,830)	(134,480)
Net cash provided by operating activities	501,566	547,173
Cash flows from investing activities:
Capital expenditures	(495,850)	(464,423)
Proceeds related to sale of equipment, including costs of disposal	3,748	2,581
Decrease in restricted cash	0	573
Additions to other intangible assets	(2,183)	(1,322)
Net cash used in investing activities	(494,285)	(462,591)
Cash flows from financing activities:
Proceeds from credit facility debt, net of discount	3,296,760	0
Repayment of credit facility debt	(3,274,001)	(44,762)
Repayment of senior notes	0	(87,822)
Proceeds from collateralized indebtedness	326,445	157,561
Repayment of collateralized indebtedness and related derivative contracts	(288,108)	(137,989)
Proceeds from stock option exercises	3,722	3,300
Dividend distributions to common stockholders	(81,242)	(86,020)
Principal payments on capital lease obligations	(7,505)	(4,638)
Deemed repurchases of restricted stock	(11,384)	(19,831)
Purchase of shares of CNYG Class A common stock, pursuant to a share repurchase program, held as treasury shares	0	(127,503)
Additions to deferred financing costs	(26,535)	(738)
Distributions to noncontrolling interests, net	(250)	(1,206)
Net cash used in financing activities	(62,098)	(349,648)
Net decrease in cash and cash equivalents from continuing operations	(54,817)	(265,066)
Cash flows of discontinued operations:
Net cash provided by operating activities	224,528	42,877
Net cash used in investing activities	(28,683)	(47,988)
Net cash used in financing activities	(38,735)	(3,825)
Effect of change in cash related to discontinued operations	14,607	5,376
Net increase (decrease) in cash and cash equivalents from discontinued operations	171,717	(3,560)
Cash and cash equivalents at beginning of year	332,610	589,304
Cash and cash equivalents at end of period	449,510	320,678
CSC Holdings, LLC [Member]
Cash flows from operating activities:
Income from continuing operations	104,004	214,524
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Depreciation and amortization (including impairments)	454,198	427,536
Gain on investments, net	(96,669)	(177,438)
Loss on equity derivative contracts, net	52,510	127,331
Write-off of deferred financing costs	6,637	0
Amortization of deferred financing costs and discounts on indebtedness	9,627	16,394
Share-based compensation expense related to equity classified awards	28,292	23,681
Deferred income taxes	30,738	128,546
Provision for doubtful accounts	27,262	21,085
Excess tax benefit on share-based awards	(8,760)	(4,373)
Changes in other assets and liabilities	54,454	(116,363)
Net cash provided by operating activities	662,293	660,923
Cash flows from investing activities:
Capital expenditures	(495,850)	(464,423)
Proceeds related to sale of equipment, including costs of disposal	3,748	2,581
Decrease in restricted cash	0	573
Additions to other intangible assets	(2,183)	(1,322)
Net cash used in investing activities	(494,285)	(462,591)
Cash flows from financing activities:
Proceeds from credit facility debt, net of discount	3,296,760	0
Repayment of credit facility debt	(3,274,001)	(44,762)
Repayment of senior notes	0	(60,997)
Proceeds from collateralized indebtedness	326,445	157,561
Repayment of collateralized indebtedness and related derivative contracts	(288,108)	(137,989)
Distributions to Cablevision	(231,645)	(426,543)
Excess tax benefit on share-based awards	8,760	4,373
Principal payments on capital lease obligations	(7,505)	(4,638)
Additions to deferred financing costs	(26,535)	(738)
Distributions to noncontrolling interests, net	(250)	(1,206)
Net cash used in financing activities	(196,079)	(514,939)
Net decrease in cash and cash equivalents from continuing operations	(28,071)	(316,607)
Cash flows of discontinued operations:
Net cash provided by operating activities	224,528	42,877
Net cash used in investing activities	(28,683)	(47,988)
Net cash used in financing activities	(38,735)	(3,825)
Effect of change in cash related to discontinued operations	14,607	5,376
Net increase (decrease) in cash and cash equivalents from discontinued operations	171,717	(3,560)
Cash and cash equivalents at beginning of year	256,744	588,411
Cash and cash equivalents at end of period	$ 400,390	$ 268,244