DEBT, Redemptions and Repurchases of CSC Holdings Senior Notes (Details) (USD $)	1 Months Ended	0 Months Ended	12 Months Ended
	Sep. 30, 2012	Sep. 27, 2012	Dec. 31, 2013	Dec. 31, 2012
Senior 8.50% Notes due June 2015
Tender Offers for Debt [Abstract]
Aggregate principal amount repurchased/redeemed	$ 120,543,000
Total consideration per $1,000 principal amount of notes tendered for purchase	1,046.25
Principal amount of notes tendered for purchase	1,000
Tender offer consideration per $1,000 principal amount of notes	1,016.25
Early tender premium per $1,000 principal amount of notes	30
CSC Holdings, LLC | Senior Notes | Senior 8.50% Notes due April 2014
Tender Offers for Debt [Abstract]
Aggregate principal amount repurchased/redeemed		370,696,000	204,937,000
Total consideration per $1,000 principal amount of notes tendered for purchase	1,113
Principal amount of notes tendered for purchase	1,000
Tender offer consideration per $1,000 principal amount of notes	1,083
Early tender premium per $1,000 principal amount of notes	30
Aggregate principal amount available for repurchase	575,633,000
CSC Holdings, LLC | Senior Notes | Senior 8.50% Notes due June 2015
Tender Offers for Debt [Abstract]
Aggregate principal amount repurchased/redeemed		29,000,000	91,543,000
CSC Holdings, LLC | Senior Notes | Senior 8.50% Notes due June 2015 and April 2014
Tender Offers for Debt [Abstract]
Gain (loss) on extinguishment of debt			(12,192,000)
Unamortized deferred financing costs and discounts written off			4,350,000	16,997,000
Tender premiums				43,231,000
Other transaction costs				$ 577,000