XML 207 R107.htm IDEA: XBRL DOCUMENT v3.22.1
Long-Term Debt - New Bridge Revolving Credit Facility (Details)
$ in Millions
 1 Months Ended
Jun. 25, 2019
USD ($)
rig
shares
Sep. 30, 2019
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Credit Facility [Abstract]        
Long-term debt     $ 1,915.9 $ 1,906.2
Deferred amendment fee     42.8 42.8
New Bridge Facility        
Credit Facility [Abstract]        
Number of jack-up rigs secured by mortgage | rig 2      
Line of credit facility, maximum borrowing capacity $ 100.0 $ 50.0    
Repayments of lines of credit   $ 50.0    
Minimum number of shares required to maintain ownership (in shares) | shares 3,000,000      
Book value of jackup rigs pledged as collateral for long-term debt facilities     86.1  
Long-term debt     30.3 30.0
Deferred amendment fee     0.3  
Revolving credit facility, amount available, undrawn     20.0  
Syndicated Senior Secured Credit Facilities        
Credit Facility [Abstract]        
Line of credit facility, maximum borrowing capacity $ 450.0      
Minimum number of shares required to maintain ownership (in shares) | shares 3,000,000      
Book value of jackup rigs pledged as collateral for long-term debt facilities     571.9  
Long-term debt     272.7 $ 270.0
Deferred amendment fee     2.7  
Revolving credit facility, amount available, undrawn     $ 10.0