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EMPLOYEE BENEFIT PLANS (Details 2) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Retirement expense $ 2,000 $ 1,600 $ 1,500
Supplemental Employee Retirement Plan [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Retirement expense 1,513 1,834 954
Contributions paid $ 320 $ 276 $ 271