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Leases - Components of Lease Costs (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Lease, Cost [Abstract]        
Finance lease cost - interest on lease liabilities $ 3,604 $ 1,386 $ 10,969 $ 5,179
Operating lease cost, excluding short-term leases [1] 1,323 568 3,419 1,703
Short-term lease cost [2] 33,152 12,982 103,001 24,838
Variable lease cost [3] 666 363 1,856 1,088
Variable and fixed sublease income (207) 0 (276) 0
Total lease cost $ 38,538 $ 15,299 $ 118,969 $ 32,808
[1] Operating lease cost reflect a single lease cost, calculated so that the cost of the lease is allocated over the lease term on a straight-line basis.
[2] Short-term lease costs are reported at gross amounts and primarily represent costs incurred for drilling rigs, most of which are short-term contracts not recognized as a right-of-use asset and lease liability on the Condensed Consolidated Balance Sheets.
[3] Variable lease costs primarily represent differences between minimum payment obligations and actual operating charges incurred by the Company related to its long-term leases.