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Revenue and Customers - Estimated Future Amortization (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2022
Dec. 31, 2021
Unfavorable contracts        
Noncurrent contract liabilities $ 121,194 $ 181,883    
Maersk Drilling        
Unfavorable contracts        
2023 72,547      
2024 40,439      
2025 8,208      
Noncurrent contract liabilities 121,194 181,883 $ 0 $ 0
Total        
2023 55,762      
2024 29,813      
2025 8,208      
Total 93,783      
Maersk Drilling | Favorable contracts        
Favorable contracts        
2023 (16,785)      
2024 (10,626)      
2025 0      
Favorable contracts $ (27,411) $ (34,372) $ (47,750) $ (61,849)