CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income	$ 175,248	$ 312,204	$ 465,641
Adjustments to reconcile net income to net cash provided by operating activities:
Loss (income) from discontinued operations, net of income taxes	12,541	(2,822)	(338,316)
Depreciation and amortization (including impairments)	865,252	866,502	909,147
Loss (gain) on investments, net	30,208	(129,659)	(313,167)
Loss (gain) on equity derivative contracts, net	(104,927)	45,055	198,688
Loss on extinguishment of debt and write-off of deferred financing costs	1,735	10,120	22,542
Amortization of deferred financing costs and discounts on indebtedness	23,764	22,887	25,936
Share-based compensation expense related to equity classified awards	60,321	43,984	52,715
Settlement loss and amortization of actuarial losses related to pension and postretirement plans	5,046	7,643	1,575
Deferred income taxes	133,396	159,779	69,456
Provision for doubtful accounts	35,802	47,611	55,231
Excess tax benefits related to share-based awards	(5,694)	(336)	(1,280)
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	(24,760)	(42,446)	(25,673)
Prepaid expenses and other assets	38,860	44,488	(8,641)
Advances/payables to affiliates	1,043	(1,463)	(1,637)
Accounts payable	6,896	25,486	(1,715)
Accrued liabilities	1,200	(35,931)	33,982
Deferred revenue	2,156	5,169	(9,507)
Net cash provided by operating activities	1,258,087	1,378,271	1,134,977
Cash flows from investing activities:
Capital expenditures	(816,396)	(891,678)	(951,679)
Proceeds related to sale of equipment, including costs of disposal	4,407	6,178	7,884
Decrease in other investments	13,840	0	0
Increase in other investments	(21,619)	(1,369)	(1,178)
Additions to other intangible assets	(8,035)	(1,193)	(3,685)
Net cash used in investing activities	(827,803)	(888,062)	(948,658)
Cash flows from financing activities:
Proceeds from credit facility debt, net of discount	0	0	3,296,760
Repayment of credit facility debt	(260,321)	(990,785)	(3,445,751)
Proceeds from issuance of senior notes	0	750,000	0
Redemption and repurchase of senior notes, including premiums and fees	0	(36,097)	(371,498)
Repayment of notes payable	(2,458)	(2,306)	(570)
Proceeds from collateralized indebtedness	774,703	416,621	569,561
Repayment of collateralized indebtedness and related derivative contracts	(639,237)	(342,105)	(508,009)
Dividend distributions to common stockholders	(125,170)	(160,545)	(159,709)
Proceeds from stock option exercises	18,727	55,355	18,120
Tax withholding associated with shares issued for equity-based compensation	0	0	(644)
Principal payments on capital lease obligations	(20,250)	(15,481)	(13,828)
Deemed repurchases of restricted stock	(19,141)	(6,608)	(12,262)
Excess tax benefit related to share-based awards	5,694	336	1,280
Additions to deferred financing costs	(250)	(14,273)	(27,080)
Payment for purchase of noncontrolling interest	(8,300)	0	0
Distributions to noncontrolling interests, net	(901)	(1,014)	(1,424)
Net cash used in financing activities	(276,904)	(346,902)	(655,054)
Net increase (decrease) in cash and cash equivalents from continuing operations	153,380	143,307	(468,735)
Cash flows of discontinued operations:
Net cash provided by (used in) operating activities	(484)	(1,199)	199,006
Net cash provided by (used in) investing activities	(30)	6,081	646,185
Net cash used in financing activities	0	0	(38,735)
Effect of change in cash related to discontinued operations	0	0	31,893
Net increase (decrease) in cash and cash equivalents from discontinued operations	(514)	4,882	838,349
Cash and cash equivalents at beginning of year	850,413	702,224	332,610
Cash and cash equivalents at end of year	1,003,279	850,413	702,224
CSC Holdings, LLC
Cash flows from operating activities:
Net income	331,651	462,773	620,055
Adjustments to reconcile net income to net cash provided by operating activities:
Loss (income) from discontinued operations, net of income taxes	12,541	(2,822)	(330,711)
Depreciation and amortization (including impairments)	865,252	866,502	909,147
Loss (gain) on investments, net	30,208	(129,659)	(313,167)
Loss (gain) on equity derivative contracts, net	(104,927)	45,055	198,688
Loss on extinguishment of debt and write-off of deferred financing costs	1,735	9,618	23,144
Amortization of deferred financing costs and discounts on indebtedness	14,807	14,602	18,167
Share-based compensation expense related to equity classified awards	60,321	43,984	52,715
Settlement loss and amortization of actuarial losses related to pension and postretirement plans	5,046	7,643	1,575
Deferred income taxes	78,925	53,189	99,867
Provision for doubtful accounts	35,802	47,611	55,231
Excess tax benefits related to share-based awards	(14,170)	(4,978)	(46,164)
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	(24,760)	(42,446)	(25,673)
Prepaid expenses and other assets	38,633	41,934	(16,081)
Advances/payables to affiliates	166,661	222,212	121,128
Accounts payable	6,896	25,486	(1,715)
Accrued liabilities	(10,021)	(29,608)	41,998
Deferred revenue	2,156	5,169	(9,507)
Net cash provided by operating activities	1,496,756	1,636,265	1,398,697
Cash flows from investing activities:
Capital expenditures	(816,396)	(891,678)	(951,679)
Proceeds related to sale of equipment, including costs of disposal	4,407	6,178	7,884
Decrease in other investments	13,840	0	0
Increase in other investments	(21,619)	(1,369)	(1,178)
Additions to other intangible assets	(8,035)	(1,193)	(3,685)
Net cash used in investing activities	(827,803)	(888,062)	(948,658)
Cash flows from financing activities:
Proceeds from credit facility debt, net of discount	0	0	3,296,760
Repayment of credit facility debt	(260,321)	(990,785)	(3,445,751)
Proceeds from issuance of senior notes	0	750,000	0
Redemption and repurchase of senior notes, including premiums and fees	0	0	(308,673)
Repayment of notes payable	(2,458)	(2,306)	(570)
Proceeds from collateralized indebtedness	774,703	416,621	569,561
Repayment of collateralized indebtedness and related derivative contracts	(639,237)	(342,105)	(508,009)
Principal payments on capital lease obligations	(20,250)	(15,481)	(13,828)
Distributions to Cablevision	(343,164)	(396,382)	(501,224)
Excess tax benefit related to share-based awards	14,170	4,978	46,164
Additions to deferred financing costs	(250)	(14,273)	(27,080)
Payment for purchase of noncontrolling interest	(8,300)	0	0
Distributions to noncontrolling interests, net	(901)	(1,014)	(1,424)
Net cash used in financing activities	(486,008)	(590,747)	(894,074)
Net increase (decrease) in cash and cash equivalents from continuing operations	182,945	157,456	(444,035)
Cash flows of discontinued operations:
Net cash provided by (used in) operating activities	(484)	(1,199)	199,006
Net cash provided by (used in) investing activities	(30)	6,081	646,185
Net cash used in financing activities	0	0	(38,735)
Effect of change in cash related to discontinued operations	0	0	31,893
Net increase (decrease) in cash and cash equivalents from discontinued operations	(514)	4,882	838,349
Cash and cash equivalents at beginning of year	813,396	651,058	256,744
Cash and cash equivalents at end of year	$ 995,827	$ 813,396	$ 651,058