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Segment Information - Long-lived Assets By Geographic Areas (Details) - Operating segments - Dayrate - USD ($)
$ in Millions
Jun. 30, 2023
Dec. 31, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets $ 2,598.9 $ 2,589.1
South East Asia    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets 842.5 832.5
Mexico    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets 661.3 675.5
Middle East    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets 553.0 481.2
West Africa    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets 448.8 507.0
Europe    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets $ 93.3 $ 92.9