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ACQUISITIONS (Purchase Price) (Details) - USD ($)
$ in Thousands
12 Months Ended
Nov. 01, 2015
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Business Combinations [Abstract]        
Net cash $ 565,083 $ 565,304 $ 0 $ 0
Preliminary estimate of payable to Seller for working capital adjustments 19,263      
Cash acquired (19,042)      
Total estimated consideration $ 565,304