CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net income	$ 94,311	$ 44,399
Adjustments to reconcile net income to net cash provided by operating activities:
Loss from discontinued operations, net of income taxes	0	10,502
Depreciation and amortization	212,453	218,900
Loss (gain) on investments, net	(100,365)	33,071
Loss (gain) on equity derivative contracts, net	48,012	(46,166)
Amortization of deferred financing costs and discounts on indebtedness	6,118	5,858
Share-based compensation expense related to equity classified awards	14,522	11,911
Settlement loss and amortization of actuarial losses related to pension and postretirement plans	1,089	1,519
Deferred income taxes	55,065	36,759
Provision for doubtful accounts	5,133	7,581
Excess tax benefit related to share-based awards	0	(275)
Changes in other assets and liabilities	(183,784)	(108,725)
Net cash provided by operating activities	152,554	215,334
Cash flows from investing activities:
Capital expenditures	(148,652)	(166,631)
Proceeds related to sale of equipment, including costs of disposal	722	595
Decrease (increase) in other investments	472	(207)
Additions to other intangible assets	(570)	(6,622)
Net cash used in investing activities	(148,028)	(172,865)
Cash flows from financing activities:
Repayment of credit facility debt	(14,953)	(15,462)
Repayment of notes payable	(1,291)	0
Proceeds from collateralized indebtedness	0	150,084
Repayment of collateralized indebtedness and related derivative contracts	0	(119,116)
Proceeds from stock option exercises	13,665	2,552
Dividend distributions to common stockholders	(4,066)	(3,925)
Principal payments on capital lease obligations	(5,234)	(4,484)
Deemed repurchases of restricted stock	(41,469)	(18,101)
Distributions to noncontrolling interests, net	0	(258)
Excess tax benefit related to share-based awards	0	275
Net cash used in financing activities	(53,348)	(8,435)
Net increase (decrease) in cash and cash equivalents from continuing operations	(48,822)	34,034
Cash flows of discontinued operations:
Net cash provided by (used in) operating activities	(21,000)	5
Net cash used in investing activities	0	(30)
Net decrease in cash and cash equivalents from discontinued operations	(21,000)	(25)
Cash and cash equivalents at beginning of year	1,003,279	850,413
Cash and cash equivalents at end of period	933,457	884,422
CSC Holdings, LLC
Cash flows from operating activities:
Net income	132,750	82,434
Adjustments to reconcile net income to net cash provided by operating activities:
Loss from discontinued operations, net of income taxes	0	10,502
Depreciation and amortization	212,453	218,900
Loss (gain) on investments, net	(100,365)	33,071
Loss (gain) on equity derivative contracts, net	48,012	(46,166)
Amortization of deferred financing costs and discounts on indebtedness	3,781	3,704
Share-based compensation expense related to equity classified awards	14,522	11,911
Settlement loss and amortization of actuarial losses related to pension and postretirement plans	1,089	1,519
Deferred income taxes	57,887	15,270
Provision for doubtful accounts	5,133	7,581
Excess tax benefit related to share-based awards	(31,653)	(5,641)
Changes in other assets and liabilities	(179,732)	(66,774)
Net cash provided by operating activities	163,877	266,311
Cash flows from investing activities:
Capital expenditures	(148,652)	(166,631)
Proceeds related to sale of equipment, including costs of disposal	722	595
Decrease (increase) in other investments	472	(207)
Additions to other intangible assets	(570)	(6,622)
Net cash used in investing activities	(148,028)	(172,865)
Cash flows from financing activities:
Repayment of credit facility debt	(14,953)	(15,462)
Repayment of notes payable	(1,291)	0
Proceeds from collateralized indebtedness	0	150,084
Repayment of collateralized indebtedness and related derivative contracts	0	(119,116)
Distributions to Cablevision	(101,878)	(60,312)
Principal payments on capital lease obligations	(5,234)	(4,484)
Distributions to noncontrolling interests, net	0	(258)
Excess tax benefit related to share-based awards	31,653	5,641
Net cash used in financing activities	(91,703)	(43,907)
Net increase (decrease) in cash and cash equivalents from continuing operations	(75,854)	49,539
Cash flows of discontinued operations:
Net cash provided by (used in) operating activities	(21,000)	5
Net cash used in investing activities	0	(30)
Net decrease in cash and cash equivalents from discontinued operations	(21,000)	(25)
Cash and cash equivalents at beginning of year	995,827	813,396
Cash and cash equivalents at end of period	$ 898,973	$ 862,910