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INCOME TAXES (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Income Taxes [Abstract]    
Income tax expense (benefit) $ 62,786 $ 37,940
Effective tax rate (percent) 40.00% 41.00%
Income tax credits and adjustments $ 1,172  
Consolidated federal net operating loss carryforwards $ 511,000  
Effective tax rate absent certain items of tax expense or benefit (in hundredths) 41.00%  
Tax credit carryforward $ 61,000  
CSC Holdings, LLC    
Income Taxes [Abstract]    
Income tax expense (benefit) $ 92,156 $ 67,542
Effective tax rate (percent) 41.00% 42.00%