XML 43 R57.htm IDEA: XBRL DOCUMENT v3.20.1
DERIVATIVE AND HEDGING ACTIVITIES - Realized Unrealized (Details) - USD ($)
$ in Thousands
1 Months Ended 2 Months Ended 3 Months Ended 12 Months Ended
Oct. 31, 2019
Dec. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Derivative and hedging activities          
Financial Designation, Predecessor and Successor [Fixed List] Successor Successor Successor Predecessor Successor
Total net gain (loss) on derivative contracts     $ 118,299 $ (64,799)  
Derivatives not designated as hedging contracts under ASC 815          
Derivative and hedging activities          
Financial Designation, Predecessor and Successor [Fixed List] Successor Successor Successor    
Derivatives not designated as hedging contracts under ASC 815 | Commodity contracts          
Derivative and hedging activities          
Total net gain (loss) on derivative contracts     $ 118,299 (64,799)  
Derivatives not designated as hedging contracts under ASC 815 | Commodity contracts | Other income (expenses) - net gain (loss) on derivative contracts          
Derivative and hedging activities          
Unrealized gain (loss) on commodity contracts     112,378 (68,169)  
Realized gain (loss) on commodity contracts     $ 5,921 $ 3,370