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STOCK COMPENSATION PLANS (Details 3) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Net tax benefit recognized from options exercised $ 1,055 $ 3,291 $ 6,513
Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Cash proceeds from options exercised 0 874 4,937
Net tax benefit recognized from options exercised 0 320 1,398
Total intrinsic value of options exercised $ 0 $ 760 $ 3,546