CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Revenues, net from affiliates	$ 5,222	$ 4,381	$ 4,183
Operating expenses:
Technical and operating charges from affiliates	178,831	171,642	144,542
Selling, general and administrative charges to affiliates	16,994	23,083	36,552
CSC Holdings, LLC [Member]
Revenues, net from affiliates	5,222	4,381	4,183
Operating expenses:
Technical and operating charges from affiliates	178,831	171,642	144,542
Selling, general and administrative charges to affiliates	$ 16,994	$ 23,083	$ 36,552