v3.26.1
Supplemental Cash Flow Information - Schedule of Supplemental Cash Flow Information (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Supplemental Cash Flow Elements [Abstract]        
Interest paid $ 22.0 $ 22.1    
Non-cash investing and financing activities (included in Accounts payable and Other accrued liabilities):        
Unpaid purchases of property and equipment 24.3 22.9    
Supplemental lease disclosures:        
Operating lease liabilities arising from obtaining operating lease assets 3.9 1.0    
Cash paid for amounts included in the measurement of operating lease liabilities 3.2 3.6    
Finance lease liabilities arising from obtaining finance lease assets 4.1 0.7    
Components of cash, cash equivalents and restricted cash:        
Cash and cash equivalents 58.5 13.1 $ 7.0  
Restricted cash included in Other assets 19.9 19.8 19.9  
Total cash, cash equivalents and restricted cash presented on our Statements of Consolidated Cash Flows $ 78.4 $ 32.9 $ 26.9 $ 37.9