v3.26.1
Revenue from contracts with customers - Major Customers (Details) - Contract revenues - Customer concentration risk
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Petrobras    
Revenue, Major Customer [Line Items]    
Concentration risk percentage 34.00% 29.00%
Sonadrill    
Revenue, Major Customer [Line Items]    
Concentration risk percentage 21.00% 24.00%
LLOG    
Revenue, Major Customer [Line Items]    
Concentration risk percentage 12.00% 6.00%
Talos    
Revenue, Major Customer [Line Items]    
Concentration risk percentage 5.00% 13.00%
Other    
Revenue, Major Customer [Line Items]    
Concentration risk percentage 28.00% 28.00%