v3.26.1
Supplemental Financial Information Schedule of Revenue by Major Customers, by Reporting Segments (Details) - Revenue Benchmark [Member] - Customer Concentration Risk
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 100.00% 100.00% 100.00% 100.00%
British Petroleum        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 18.00% 11.00% 14.00% 12.00%
Petrobras S.A        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 16.00% 13.00% 16.00% 13.00%
Azule Energy        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 13.00% 10.00% 14.00% 9.00%
Other Customers        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 43.00% 60.00% 50.00% 59.00%
Equinor ASA        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 10.00% 6.00% 6.00% 7.00%
Floaters        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 54.00% 53.00% 49.00% 56.00%
Floaters | British Petroleum        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 5.00% 3.00% 3.00% 4.00%
Floaters | Petrobras S.A        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 16.00% 13.00% 16.00% 13.00%
Floaters | Azule Energy        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 9.00% 7.00% 9.00% 7.00%
Floaters | Other Customers        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 14.00% 24.00% 15.00% 25.00%
Floaters | Equinor ASA        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 10.00% 6.00% 6.00% 7.00%
Jackups        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 36.00% 39.00% 41.00% 37.00%
Jackups | British Petroleum        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 6.00% 3.00% 5.00% 3.00%
Jackups | Petrobras S.A        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 0.00% 0.00% 0.00% 0.00%
Jackups | Azule Energy        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 4.00% 3.00% 5.00% 2.00%
Jackups | Other Customers        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 26.00% 33.00% 31.00% 32.00%
Jackups | Equinor ASA        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 0.00% 0.00% 0.00% 0.00%
Other        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 10.00% 8.00% 10.00% 7.00%
Other | British Petroleum        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 7.00% 5.00% 6.00% 5.00%
Other | Petrobras S.A        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 0.00% 0.00% 0.00% 0.00%
Other | Azule Energy        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 0.00% 0.00% 0.00% 0.00%
Other | Other Customers        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 3.00% 3.00% 4.00% 2.00%
Other | Equinor ASA        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 0.00% 0.00% 0.00% 0.00%