v3.5.0.2
LONG-TERM DEBT - Schedule of Long-Term Debt Instruments (Details) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Long-Term Debt    
Total long-term debt, net of deferred borrowing costs $ 212,231 $ 228,474
Credit Agreement | Revolving Credit Facility    
Long-Term Debt    
Long-term debt, gross 214,512 231,735
Total long-term debt 214,512 231,735
Less: Net deferred borrowing costs 2,281 3,261
Total long-term debt, net of deferred borrowing costs $ 212,231 $ 228,474