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FRESH START ACCOUNTING - Reorganization Items (Details) - USD ($)
$ in Thousands
1 Months Ended 2 Months Ended 3 Months Ended
Mar. 31, 2017
Feb. 28, 2017
Mar. 31, 2018
Fresh-Start Adjustment [Line Items]      
Gain on reorganization items, net $ 0   $ 0
Predecessor      
Fresh-Start Adjustment [Line Items]      
Gain on settlement of liabilities subject to compromise   $ 230,445  
Fresh start valuation adjustments   235,804  
Reorganization professional fees and other expenses   (20,403)  
Write-off of unamortized debt issuance costs   (2,577)  
Other reorganization items   (5,525)  
Gain on reorganization items, net   $ 437,744