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Acquisitions and Divestitures - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Business Acquisition [Line Items]    
Total cash consideration $ 414 $ 4,184
Gain on sale of oil and gas properties, net $ 204 3,222
Non-core Properties    
Business Acquisition [Line Items]    
Total cash consideration   4,200
Gain on sale of oil and gas properties, net   $ 3,600