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Commitments and Contingencies Narrative (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2024
Dec. 31, 2023
Surety Bond    
Other Commitments [Line Items]    
Aggregate estimated exposure, contracts with surety bonds $ 2,100.0  
Estimated exposure, contracts with surety bonds, RPO percentage 23.00%  
Surety bonds for insurance $ 48.1  
Other accrued expenses and liabilities    
Other Commitments [Line Items]    
Insurance liabilities, current 53.6 $ 51.0
Other long-term obligations    
Other Commitments [Line Items]    
Insurance liabilities, noncurrent 233.5 229.8
Prepaid expenses and other    
Other Commitments [Line Items]    
Anticipated insurance recoveries, current 12.2 11.9
Other assets    
Other Commitments [Line Items]    
Anticipated insurance recoveries, noncurrent $ 47.5 $ 48.8