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Accounts Payable and Accrued Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Payables and Accruals [Abstract]    
Accounts payable $ 74,881 $ 101,231
Revenues payable 259,842 162,762
Accrued capital expenditures 48,029 32,493
Accrued interest 59,301 45,033
Total accounts payable and accrued liabilities $ 442,053 $ 341,519