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Asset Retirement Obligations - Changes in AROs (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Changes in our AROs:      
AROs at beginning of year $ 29,658 $ 30,913 $ 28,258
Liability incurred during the period 23,601    
Revisions in estimates (3,285) (2,631)  
Accretion expense 1,982 1,376 2,655
AROs at end of period $ 51,956 $ 29,658 $ 30,913