CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues, net (including revenues, net from affiliates)	$ 6,460,946	$ 6,232,152	$ 6,131,675
Operating expenses:
Technical and operating (excluding depreciation, amortization and impairments shown below and including charges from affiliates)	3,136,808	3,079,226	3,001,577
Selling, general and administrative (net of charges from (to) affiliates)	1,533,898	1,521,005	1,454,045
Restructuring expense (credits)	2,480	23,550	(770)
Depreciation and amortization (including impairments)	866,502	909,147	907,775
Total operating expenses	5,539,688	5,532,928	5,362,627
Operating income	921,258	699,224	769,048
Other income (expense):
Interest expense	(576,000)	(601,102)	(661,052)
Interest income	420	465	978
Gain on sale of affiliate interests	0	0	716
Gain on investments, net	129,659	313,167	294,235
Loss on equity derivative contracts, net	(45,055)	(198,688)	(211,335)
Loss on interest rate swap contracts, net	0	0	(1,828)
Loss on extinguishment of debt and write-off of deferred financing costs	(10,120)	(22,542)	(66,213)
Miscellaneous, net	4,988	2,436	1,770
Total other income (expense)	(496,108)	(506,264)	(642,729)
Income from continuing operations before income taxes	425,150	192,960	126,319
Income tax expense	(115,768)	(65,635)	(51,994)
Income from continuing operations, net of income taxes	309,382	127,325	74,325
Income from discontinued operations, net of income taxes	2,822	338,316	159,288
Net income	312,204	465,641	233,613
Net loss (income) attributable to noncontrolling interests	(765)	20	(90)
Net income attributable to Cablevision Systems Corporation stockholders/CSC Holdings, LLC's sole member	311,439	465,661	233,523
Basic income per share attributable to Cablevision Systems Corporation stockholders:
Income from continuing operations (in dollars per share)	$ 1.17	$ 0.49	$ 0.28
Income from discontinued operations (in dollars per share)	$ 0.01	$ 1.30	$ 0.61
Net income (in dollars per share)	$ 1.18	$ 1.79	$ 0.89
Basic weighted average common shares (in thousands)	264,623	260,763	262,258
Diluted income per share attributable to Cablevision Systems Corporation stockholders:
Income from continuing operations (in dollars per share)	$ 1.14	$ 0.48	$ 0.28
Income from discontinued operations (in dollars per share)	$ 0.01	$ 1.27	$ 0.60
Net income (in dollars per share)	$ 1.15	$ 1.75	$ 0.87
Diluted weighted average common shares (in thousands)	270,703	265,935	267,330
Amounts attributable to Cablevision Systems Corporation stockholders/CSC Holdings, LLC sole member:
Income from continuing operations, net of income taxes	308,617	127,345	74,235
Income from discontinued operations, net of income taxes	2,822	338,316	159,288
Net income attributable to Cablevision Systems Corporation stockholders/CSC Holdings, LLC's sole member	311,439	465,661	233,523
Cash dividends declared and paid per share of common stock (in dollars per share)	$ 0.6	$ 0.600	$ 0.600
CSC Holdings, LLC
Revenues, net (including revenues, net from affiliates)	6,460,946	6,232,152	6,131,675
Operating expenses:
Technical and operating (excluding depreciation, amortization and impairments shown below and including charges from affiliates)	3,136,808	3,079,226	3,001,577
Selling, general and administrative (net of charges from (to) affiliates)	1,533,898	1,521,005	1,454,045
Restructuring expense (credits)	2,480	23,550	(770)
Depreciation and amortization (including impairments)	866,502	909,147	907,775
Total operating expenses	5,539,688	5,532,928	5,362,627
Operating income	921,258	699,224	769,048
Other income (expense):
Interest expense	(353,288)	(374,430)	(466,776)
Interest income	48,457	58,858	59,993
Gain on sale of affiliate interests	0	0	716
Gain on investments, net	129,659	313,167	294,235
Loss on equity derivative contracts, net	(45,055)	(198,688)	(211,335)
Loss on interest rate swap contracts, net	0	0	(1,828)
Loss on extinguishment of debt and write-off of deferred financing costs	(9,618)	(23,144)	(66,213)
Miscellaneous, net	4,988	2,436	1,770
Total other income (expense)	(224,857)	(221,801)	(389,438)
Income from continuing operations before income taxes	696,401	477,423	379,610
Income tax expense	(236,450)	(188,079)	(152,547)
Income from continuing operations, net of income taxes	459,951	289,344	227,063
Income from discontinued operations, net of income taxes	2,822	330,711	159,288
Net income	462,773	620,055	386,351
Net loss (income) attributable to noncontrolling interests	(765)	20	(90)
Net income attributable to Cablevision Systems Corporation stockholders/CSC Holdings, LLC's sole member	462,008	620,075	386,261
Amounts attributable to Cablevision Systems Corporation stockholders/CSC Holdings, LLC sole member:
Income from continuing operations, net of income taxes	459,186	289,364	226,973
Income from discontinued operations, net of income taxes	2,822	330,711	159,288
Net income attributable to Cablevision Systems Corporation stockholders/CSC Holdings, LLC's sole member	$ 462,008	$ 620,075	$ 386,261