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INCOME TAXES - Schedule of Reconciliation of Beginning and Ending Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Reconciliation of Unrecognized Tax Benefits    
Unrecognized tax benefits, beginning balance $ 24,212 $ 24,212
Additions (reductions) based on prior years’ tax positions (24,212) 0
Additions (reductions) based on current year tax positions 0 0
Unrecognized tax benefits, ending balance $ 0 $ 24,212