CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net income (loss)	$ (16,398)	$ 57,104
Defined benefit pension plans and postretirement plans:
Amortization of actuarial losses, net	210	49
Comprehensive income (loss)	(16,188)	57,153
Comprehensive loss attributable to noncontrolling interests	257	143
Comprehensive income (loss) attributable to Cablevision Systems Corporation stockholders/CSC Holdings, LLC's sole member	(15,931)	57,296
CSC Holdings, LLC [Member]
Net income (loss)	24,690	91,552
Defined benefit pension plans and postretirement plans:
Amortization of actuarial losses, net	210	49
Other comprehensive income	24,900	91,601
Comprehensive loss attributable to noncontrolling interests	257	143
Comprehensive income (loss) attributable to Cablevision Systems Corporation stockholders/CSC Holdings, LLC's sole member	$ 25,157	$ 91,744