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Revenue and Customers - Estimated Future Amortization (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Jun. 30, 2022
Dec. 31, 2021
Unfavorable contracts        
Noncurrent contract liabilities $ 79,792 $ 181,883    
Maersk Drilling        
Unfavorable contracts        
2023 31,145      
2024 40,439      
2025 8,208      
Noncurrent contract liabilities 79,792 181,883 $ 0 $ 0
Total        
2023 24,751      
2024 29,815      
2025 8,208      
Total 62,774      
Maersk Drilling | Favorable contracts        
Favorable contracts        
2023 (6,394)      
2024 (10,624)      
2025 0      
Favorable contracts $ (17,018) $ (34,372) $ (33,494) $ (61,849)