CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Income (loss) from continuing operations	$ (16,650)	$ 64,364
Adjustments to reconcile income (loss) from continuing operations to net cash provided by operating activities:
Depreciation and amortization (including impairments)	236,382	212,364
Gain on investments, net	(99,458)	(135,325)
Loss on equity derivative contracts, net	71,716	111,194
Amortization of deferred financing costs and discounts on indebtedness	6,612	9,614
Share-based compensation expense related to equity classified awards	16,054	10,281
Deferred income taxes	(13,864)	42,797
Provision for doubtful accounts	15,678	9,886
Changes in other assets and liabilities	(30,548)	(119,676)
Net cash provided by operating activities	185,922	205,499
Cash flows from investing activities:
Capital expenditures	(237,520)	(188,434)
Payments related to sale of equipment, including costs of disposal	(63)	(540)
Decrease in restricted cash	0	573
Additions to other intangible assets	(548)	(565)
Net cash used in investing activities	(238,131)	(188,966)
Cash flows from financing activities:
Repayment of credit facility debt	(31,780)	(19,346)
Proceeds from collateralized indebtedness	103,226	0
Repayment of collateralized indebtedness and related derivative contracts	(91,426)	0
Proceeds from stock option exercises	1,212	3,195
Dividend distributions to common stockholders	(3,074)	(46,406)
Principal payments on capital lease obligations	(4,735)	(2,387)
Deemed repurchases of restricted stock	(11,384)	(19,764)
Purchase of shares of CNYG Class A common stock, pursuant to a share repurchase program, held as treasury shares	0	(48,692)
Additions to deferred financing costs	0	(738)
Distributions to noncontrolling interests, net	0	(64)
Net cash used in financing activities	(37,961)	(134,202)
Net decrease in cash and cash equivalents from continuing operations	(90,170)	(117,669)
Cash flows of discontinued operations:
Net cash provided by operating activities	54,809	28,820
Net cash used in investing activities	(12,844)	(27,643)
Net cash used in financing activities	(36,913)	(1,912)
Effect of change in cash related to discontinued operations	(3,575)	2,538
Net increase in cash and cash equivalents from discontinued operations	1,477	1,803
Cash and cash equivalents at beginning of year	332,833	589,431
Cash and cash equivalents at end of period	244,140	473,565
CSC Holdings, LLC [Member]
Cash flows from operating activities:
Income (loss) from continuing operations	24,438	98,812
Adjustments to reconcile income (loss) from continuing operations to net cash provided by operating activities:
Depreciation and amortization (including impairments)	236,382	212,364
Gain on investments, net	(99,458)	(135,325)
Loss on equity derivative contracts, net	71,716	111,194
Amortization of deferred financing costs and discounts on indebtedness	4,740	8,157
Share-based compensation expense related to equity classified awards	16,054	10,281
Deferred income taxes	10,756	57,522
Provision for doubtful accounts	15,678	9,886
Excess tax benefit on share-based awards	(1,012)	(11,518)
Changes in other assets and liabilities	(41,196)	(128,587)
Net cash provided by operating activities	238,098	232,786
Cash flows from investing activities:
Capital expenditures	(237,520)	(188,434)
Payments related to sale of equipment, including costs of disposal	(63)	(540)
Decrease in restricted cash	0	573
Additions to other intangible assets	(548)	(565)
Net cash used in investing activities	(238,131)	(188,966)
Cash flows from financing activities:
Repayment of credit facility debt	(31,780)	(19,346)
Proceeds from collateralized indebtedness	103,226	0
Repayment of collateralized indebtedness and related derivative contracts	(91,426)	0
Distributions to Cablevision	(74,875)	(180,430)
Excess tax benefit on share-based awards	1,012	11,518
Principal payments on capital lease obligations	(4,735)	(2,387)
Additions to deferred financing costs	0	(738)
Distributions to noncontrolling interests, net	0	(64)
Net cash used in financing activities	(98,578)	(191,447)
Net decrease in cash and cash equivalents from continuing operations	(98,611)	(147,627)
Cash flows of discontinued operations:
Net cash provided by operating activities	54,809	28,820
Net cash used in investing activities	(12,844)	(27,643)
Net cash used in financing activities	(36,913)	(1,912)
Effect of change in cash related to discontinued operations	(3,575)	2,538
Net increase in cash and cash equivalents from discontinued operations	1,477	1,803
Cash and cash equivalents at beginning of year	256,967	588,538
Cash and cash equivalents at end of period	$ 159,833	$ 442,714