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DERIVATIVE AND HEDGING ACTIVITIES - (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Derivative and hedging activities    
Asset derivative contracts $ 3,898 $ 12,568
Liability derivative contracts (65,466) (26,416)
Derivatives not designated as hedging contracts    
Derivative and hedging activities    
Asset derivative contracts 3,898 12,568
Liability derivative contracts (65,466) (26,416)
Derivatives not designated as hedging contracts | Commodity contracts | Current assets - receivables from derivative contracts    
Derivative and hedging activities    
Asset derivative contracts 1,383 8,559
Derivatives not designated as hedging contracts | Commodity contracts | Other noncurrent assets - receivables from derivative contracts    
Derivative and hedging activities    
Asset derivative contracts 2,515 4,009
Derivatives not designated as hedging contracts | Commodity contracts | Current liabilities - liabilities from derivative contracts    
Derivative and hedging activities    
Liability derivative contracts (58,322) (22,125)
Derivatives not designated as hedging contracts | Commodity contracts | Other noncurrent liabilities - liabilities from derivative contracts    
Derivative and hedging activities    
Liability derivative contracts $ (7,144) $ (4,291)