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Other Retirement Plans (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
USD ($)
employee
Sep. 30, 2021
USD ($)
employee
Sep. 30, 2022
USD ($)
employee
Sep. 30, 2021
USD ($)
employee
Covered Employees and Contributions, Multiemployer Plans [Line Items]        
Multiemployer plan, employer contribution, cost $ 37.5 $ 48.6 $ 103.9 $ 103.0
Pension        
Covered Employees and Contributions, Multiemployer Plans [Line Items]        
Multiemployer plan, employer contribution, cost 23.0 36.9 62.3 81.1
Other Multiemployer        
Covered Employees and Contributions, Multiemployer Plans [Line Items]        
Multiemployer plan, employer contribution, cost $ 14.5 $ 11.7 $ 41.6 $ 21.9
Low        
Covered Employees and Contributions, Multiemployer Plans [Line Items]        
Multiemployer plans, covered employees (in number of employees) | employee 6,774 5,116 6,601 2,412
High        
Covered Employees and Contributions, Multiemployer Plans [Line Items]        
Multiemployer plans, covered employees (in number of employees) | employee 7,136 6,979 7,136 6,979