CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities:
Income from continuing operations	$ 178,157	$ 133,996
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Depreciation and amortization (including impairments)	749,333	652,145
Loss (gain) on investments, net	22,978	(26,256)
Loss (gain) on equity derivative contracts, net	(38,856)	9,801
Loss on extinguishment of debt and write-off of deferred financing costs	3,027	110,049
Amortization of deferred financing costs and discounts on indebtedness	35,065	30,193
Share-based compensation expense related to equity classified awards	36,585	36,317
Deferred income taxes	119,675	66,168
Provision for doubtful accounts	43,872	46,167
Changes in other assets and liabilities	(135,126)	(65,111)
Net cash provided by operating activities	1,014,710	993,469
Cash flows from investing activities:
Capital expenditures	(574,478)	(575,374)
Proceeds (payments) related to sale of equipment, net of costs of disposal	(1,242)	1,706
Payments for acquisitions, net	(7,776)	0
Decrease in investment securities and other investments	30	100
Contributions to AMC Networks	0	(101,171)
Additions to other intangible assets	(10,500)	(1,294)
Net cash used in investing activities	(593,966)	(676,033)
Cash flows from financing activities:
Proceeds from credit facility debt	605,000	400,000
Repayment of credit facility debt	(168,089)	(483,658)
Proceeds from issuance of senior notes	0	1,250,000
Repurchase of senior notes and debentures, including tender premiums and fees	(64,900)	(1,078,212)
Repayment of senior notes	(325,796)	0
Proceeds from collateralized indebtedness	246,464	148,174
Repayment of collateralized indebtedness	(210,584)	(148,174)
Proceeds from stock option exercises	6,163	19,829
Dividend distributions to common stockholders	(120,918)	(104,322)
Principal payments on capital lease obligations	(2,567)	(985)
Deemed repurchases of restricted stock	(32,968)	(17,623)
Purchase of shares of CNYG Class A common stock, pursuant to a share repurchase program, held as treasury shares	(488,408)	(157,081)
Additions to deferred financing costs	(440)	(40,247)
Distributions to noncontrolling interests	(1,127)	(635)
Net cash used in financing activities	(558,170)	(212,934)
Net increase (decrease) in cash and cash equivalents from continuing operations	(137,426)	104,502
Cash flows of discontinued operations:
Net cash provided by operating activities	131,158	216,007
Net cash used in investing activities	(4,086)	(12,637)
Net cash provided by (used in) financing activities	2,857	(158,831)
Effect of change in cash related to discontinued operations	(117,877)	(3,011)
Net increase in cash and cash equivalents from discontinued operations	12,052	41,528
Cash and cash equivalents at beginning of year	313,991	215,204
Cash and cash equivalents at end of period	188,617	361,234
CSC Holdings, LLC [Member]
Cash flows from operating activities:
Income from continuing operations	276,472	309,073
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Depreciation and amortization (including impairments)	749,333	652,145
Loss (gain) on investments, net	22,978	(26,256)
Loss (gain) on equity derivative contracts, net	(38,856)	9,801
Loss on extinguishment of debt and write-off of deferred financing costs	3,027	0
Amortization of deferred financing costs and discounts on indebtedness	30,925	26,123
Accretion of discount on Cablevision senior notes held by Newsday Holdings LLC	0	(3,131)
Share-based compensation expense related to equity classified awards	36,585	36,317
Deferred income taxes	192,736	173,296
Provision for doubtful accounts	43,872	46,167
Excess tax benefit on share-based awards	(7,901)	0
Changes in other assets and liabilities	(150,185)	(56,561)
Net cash provided by operating activities	1,158,986	1,166,974
Cash flows from investing activities:
Capital expenditures	(574,478)	(575,374)
Proceeds (payments) related to sale of equipment, net of costs of disposal	(1,242)	1,706
Payments for acquisitions, net	(7,776)	0
Decrease in investment securities and other investments	30	100
Contributions to AMC Networks	0	(101,171)
Additions to other intangible assets	(10,500)	(1,294)
Net cash used in investing activities	(593,966)	(676,033)
Cash flows from financing activities:
Proceeds from credit facility debt	605,000	400,000
Repayment of credit facility debt	(168,089)	(483,658)
Repurchase of senior notes	(64,900)	0
Repayment of senior notes	(325,796)	0
Proceeds from collateralized indebtedness	246,464	148,174
Repayment of collateralized indebtedness	(210,584)	(148,174)
Dividend payments to sole member, net	(744,536)	(339,317)
Excess tax benefit on share-based awards	7,901	0
Principal payments on capital lease obligations	(2,567)	(985)
Additions to deferred financing costs	(440)	(13,660)
Distributions to noncontrolling interests	(1,127)	(635)
Net cash used in financing activities	(658,674)	(438,255)
Net increase (decrease) in cash and cash equivalents from continuing operations	(93,654)	52,686
Cash flows of discontinued operations:
Net cash provided by operating activities	131,158	216,007
Net cash used in investing activities	(4,086)	(12,637)
Net cash provided by (used in) financing activities	2,857	(158,831)
Effect of change in cash related to discontinued operations	(117,877)	(3,011)
Net increase in cash and cash equivalents from discontinued operations	12,052	41,528
Cash and cash equivalents at beginning of year	266,914	174,212
Cash and cash equivalents at end of period	$ 185,312	$ 268,426