v3.25.2
Debt - Additional Information (Details) - USD ($)
Jun. 30, 2025
Sep. 04, 2024
Aug. 22, 2024
Sep. 21, 2023
Apr. 30, 2023
Apr. 18, 2023
8.000% Senior Notes due April 2030 | Senior Notes            
Debt Instrument [Line Items]            
Borrowings outstanding     $ 1,400,000,000      
Stated interest rate (as a percent)     8.00%     8.00%
Debt face amount     $ 800,000,000     $ 600,000,000
Premium percentage (as a percent)     103.00%      
8.500% Senior Secured Second Lien Notes due October 2030 | Senior Notes            
Debt Instrument [Line Items]            
Stated interest rate (as a percent)       8.50%    
Debt face amount       $ 550,000,000    
Credit facility | Credit facility | Diamond Offshore Drilling, Inc.            
Debt Instrument [Line Items]            
Credit facility of maximum borrowing capacity   $ 300,000,000        
Borrowings outstanding   $ 0        
Credit facility | 2023 Revolving Credit Agreement            
Debt Instrument [Line Items]            
Letters of credit outstanding amount $ 18,200,000          
Credit facility | 2023 Revolving Credit Agreement | Credit facility            
Debt Instrument [Line Items]            
Credit facility of maximum borrowing capacity         $ 550,000,000  
Borrowings outstanding $ 0