DEBT, Repurchases of Cablevision Senior Notes (Details) - Senior Notes - Senior 5.875% Notes due September 2022 - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Oct. 31, 2014	Jan. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	[1]
Repurchases of Cablevision Senior Notes [Abstract]
Gain (loss) on extinguishment of debt			$ 1,119
Unamortized deferred financing costs and discounts written off			517
Cablevision Systems Corporation
Repurchases of Cablevision Senior Notes [Abstract]
Aggregate principal amount repurchased/redeemed	$ 9,200	$ 27,831	$ 63,945
Interest rate (percent)		5.875%		5.875%
Gain (loss) on extinguishment of debt	934
Unamortized deferred financing costs and discounts written off	$ 1,436

[1] The Company may redeem some or all of the notes at any time at a specified "make-whole" price plus accrued and unpaid interest to the redemption date.