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Summary of Significant Accounting Policies - Asset Retirement Obligations (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Asset retirement obligations    
Asset retirement obligation as of beginning of period $ 732,803 $ 661,334
Accretion expense 47,700 36,613
Liabilities incurred 10,515 34,363
Liabilities settled (33,938) (19,055)
Liabilities assumed in acquisitions 64,424 0
Liabilities removed in divestitures (6,480) (697)
Change in estimates 96,033 20,245
Asset retirement obligation as of end of period $ 911,057 $ 732,803