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Retirement Plans - Additional Information (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Feb. 29, 2020
Jan. 31, 2020
Jun. 30, 2020
Jun. 30, 2020
Defined Benefit Plan Disclosure [Line Items]        
Pension liability       $ 6.6
Remaining plan assets in excess of pension liability     $ 16.6 16.6
United States Plans        
Defined Benefit Plan Disclosure [Line Items]        
Contributions to pension plans   $ 19.2    
Settlement of lump sum payments $ 3.2      
Defined Benefit Pension Plan        
Defined Benefit Plan Disclosure [Line Items]        
Contributions to pension plans     5.0 11.0
Estimated employer contribution to pension plans during remainder of current fiscal year     17.0 17.0
Retiree Health Care Plan        
Defined Benefit Plan Disclosure [Line Items]        
Contributions to retiree health care plan     $ 0.3 $ 0.6