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Commitments and Contingencies - Commitments (Details)
$ in Millions
12 Months Ended
Dec. 31, 2024
USD ($)
item
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Commitments and Contingencies      
Rental expense relating to operating leases | $ $ 15.7 $ 17.2 $ 15.0
Minimum      
Commitments and Contingencies      
Lease term 30 days    
Joint ventures      
Commitments and Contingencies      
Number of drilling units to backstop entity share to purchase in the event of insufficient cash | item 25