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LEASE COMMITMENTS (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
LEASE COMMITMENTS [Abstract]      
Operating Leases, Rent Expense $ 7,300 $ 10,200 $ 7,600
Operating Leases, Future Minimum Payments Due [Abstract]      
2016 5,681    
2017 2,823    
2018 2,323    
2019 1,334    
2020 676    
Thereafter 365    
Total future minimum lease payments 13,202    
Capital Leased Assets, Gross 8,500    
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]      
2016 1,200    
2017 495    
2018 109    
2019 66    
2020 5    
Capital Leases, Future Minimum Payments Due 1,875    
Capital Leases, Future Minimum Payments, Interest Included in Payments (29)    
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments $ 1,846