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STOCK COMPENSATION PLANS (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock compensation costs $ 4,575 $ 3,954
Net tax benefit recognized in equity for stock compensation plans 986 3,145
Common Stock and Additional Paid-In Capital    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Net tax benefit recognized in equity for stock compensation plans $ 986 $ 3,145