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Fair Value Measurements - Fair value of net derivative instruments (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Assets (at fair value):    
Derivative assets - commodity derivatives $ 16,608 $ 10,089
Liabilities (at fair value):    
Derivative instruments - commodity derivatives (13) (431)
Derivative instruments - common stock warrants (6,624) (11,902)
Fair Value    
Assets (at fair value):    
Derivative assets - commodity derivatives 16,608 10,089
Liabilities (at fair value):    
Derivative instruments - commodity derivatives (13) (431)
Derivative instruments - common stock warrants (6,624) (11,902)
Fair Value, Recurring    
Assets (at fair value):    
Commodity derivatives - current portion - Net of fair value presented in CBS 16,608 10,089
Liabilities (at fair value):    
Commodity derivatives - current portion - Net fair value presented in CBS (13) (431)
Net derivative instruments 16,595 9,658
Fair Value, Recurring | Fair Value    
Assets (at fair value):    
Derivative assets - commodity derivatives 18,941 20,197
Commodity derivatives - current portion offset in the Consolidated Balance Sheet (2,333) (10,108)
Liabilities (at fair value):    
Derivative instruments - commodity derivatives (2,346) (10,539)
Commodity derivatives - current portion - Offset in Consolidated Balance Sheet 2,333 10,108
Derivative instruments - common stock warrants (6,624) (11,902)
Net derivative instruments 9,971 (2,244)
Fair Value, Recurring | Level 1 | Fair Value    
Assets (at fair value):    
Derivative assets - commodity derivatives 0 0
Liabilities (at fair value):    
Derivative instruments - commodity derivatives 0 0
Derivative instruments - common stock warrants (6,624) (11,902)
Net derivative instruments (6,624) (11,902)
Fair Value, Recurring | Level 2 | Fair Value    
Assets (at fair value):    
Derivative assets - commodity derivatives 18,941 20,197
Liabilities (at fair value):    
Derivative instruments - commodity derivatives (2,346) (10,539)
Derivative instruments - common stock warrants 0 0
Net derivative instruments 16,595 9,658
Fair Value, Recurring | Level 3 | Fair Value    
Assets (at fair value):    
Derivative assets - commodity derivatives 0 0
Liabilities (at fair value):    
Derivative instruments - commodity derivatives 0 0
Derivative instruments - common stock warrants 0 0
Net derivative instruments $ 0 $ 0