CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 120,075	$ 184,238
Adjustments to reconcile net income to net cash provided by operating activities:
Loss (income) from discontinued operations, net of income taxes	10,502	(3,076)
Depreciation and amortization (including impairments)	432,829	435,373
Gain on investments, net	(45,747)	(36,837)
Gain on equity derivative contracts, net	(23,473)	(6,036)
Loss on extinguishment of debt and write-off of deferred financing costs	1,735	8,298
Amortization of deferred financing costs and discounts on indebtedness	11,760	11,324
Share-based compensation expense related to equity classified awards	27,850	22,601
Settlement loss and amortization of actuarial losses related to pension and postretirement plans	2,511	4,565
Deferred income taxes	105,909	81,485
Provision for doubtful accounts	16,128	21,043
Excess tax benefit related to share-based awards	(4,323)	(746)
Changes in other assets and liabilities	(71,521)	(14,754)
Net cash provided by operating activities	584,235	707,478
Cash flows from investing activities:
Capital expenditures	(381,305)	(425,193)
Proceeds related to sale of equipment, including costs of disposal	3,219	3,209
Increase in other investments	(393)	(616)
Additions to other intangible assets	(7,032)	(540)
Net cash used in investing activities	(385,511)	(423,140)
Cash flows from financing activities:
Repayment of credit facility debt	(230,415)	(759,861)
Repayment of notes payable	(2,458)	(2,306)
Proceeds from issuance of senior notes	0	750,000
Repurchase of senior notes, including premiums and fees	0	(27,173)
Proceeds from collateralized indebtedness	467,804	273,519
Repayment of collateralized indebtedness and related derivative contracts	(392,192)	(226,250)
Proceeds from stock option exercises	13,451	21,159
Dividend distributions to common stockholders	(84,669)	(80,630)
Principal payments on capital lease obligations	(9,028)	(7,030)
Deemed repurchases of restricted stock	(18,265)	(6,608)
Additions to deferred financing costs	0	(13,579)
Distributions to noncontrolling interests, net	(901)	(778)
Excess tax benefit related to share-based awards	4,323	746
Net cash used in financing activities	(252,350)	(78,791)
Net increase (decrease) in cash and cash equivalents from continuing operations	(53,626)	205,547
Cash flows of discontinued operations:
Net cash used in operating activities	(192)	(786)
Net cash used in investing activities	(30)	(196)
Net decrease in cash and cash equivalents from discontinued operations	(222)	(982)
Cash and cash equivalents at beginning of year	850,413	702,224
Cash and cash equivalents at end of period	796,565	906,789
CSC Holdings, LLC
Cash flows from operating activities:
Net income	196,238	262,152
Adjustments to reconcile net income to net cash provided by operating activities:
Loss (income) from discontinued operations, net of income taxes	10,502	(3,076)
Depreciation and amortization (including impairments)	432,829	435,373
Gain on investments, net	(45,747)	(36,837)
Gain on equity derivative contracts, net	(23,473)	(6,036)
Loss on extinguishment of debt and write-off of deferred financing costs	1,735	7,687
Amortization of deferred financing costs and discounts on indebtedness	7,380	7,263
Share-based compensation expense related to equity classified awards	27,850	22,601
Settlement loss and amortization of actuarial losses related to pension and postretirement plans	2,511	4,565
Deferred income taxes	31,264	(19,940)
Provision for doubtful accounts	16,128	21,043
Excess tax benefit related to share-based awards	(10,795)	(1,587)
Changes in other assets and liabilities	52,832	140,803
Net cash provided by operating activities	699,254	834,011
Cash flows from investing activities:
Capital expenditures	(381,305)	(425,193)
Proceeds related to sale of equipment, including costs of disposal	3,219	3,209
Increase in other investments	(393)	(616)
Additions to other intangible assets	(7,032)	(540)
Net cash used in investing activities	(385,511)	(423,140)
Cash flows from financing activities:
Repayment of credit facility debt	(230,415)	(759,861)
Repayment of notes payable	(2,458)	(2,306)
Proceeds from issuance of senior notes	0	750,000
Proceeds from collateralized indebtedness	467,804	273,519
Repayment of collateralized indebtedness and related derivative contracts	(392,192)	(226,250)
Distributions to Cablevision	(214,135)	(218,319)
Principal payments on capital lease obligations	(9,028)	(7,030)
Additions to deferred financing costs	0	(13,579)
Distributions to noncontrolling interests, net	(901)	(778)
Excess tax benefit related to share-based awards	10,795	1,587
Net cash used in financing activities	(370,530)	(203,017)
Net increase (decrease) in cash and cash equivalents from continuing operations	(56,787)	207,854
Cash flows of discontinued operations:
Net cash used in operating activities	(192)	(786)
Net cash used in investing activities	(30)	(196)
Net decrease in cash and cash equivalents from discontinued operations	(222)	(982)
Cash and cash equivalents at beginning of year	813,396	651,058
Cash and cash equivalents at end of period	$ 756,387	$ 857,930