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Employee Benefits (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Domestic Plan [Member]    
Defined Pension and Postretirement Benefit Plans    
Service cost $ 0.0 $ 0.0
Interest cost 0.7 1.0
Expected return on plan assets (1.4) (1.4)
Amortization of:    
Unrecognized actuarial losses 0.5 0.4
Net periodic cost (0.2) 0.0
Pension plan - employer contributions 1.3  
Pension plan - estimated employer contributions for remainder of current fiscal year 1.0  
Foreign Plan [Member]    
Defined Pension and Postretirement Benefit Plans    
Service cost 1.1 1.2
Interest cost 2.0 2.3
Expected return on plan assets (5.2) (4.7)
Amortization of:    
Unrecognized actuarial losses 1.7 1.4
Net periodic cost (0.4) 0.2
Pension plan - employer contributions 4.6  
Pension plan - estimated employer contributions for remainder of current fiscal year 14.0  
Domestic Postretirement Benefit Plan    
Defined Pension and Postretirement Benefit Plans    
Service cost 0.0 0.0
Interest cost 0.2 0.2
Expected return on plan assets 0.0 0.0
Amortization of:    
Unrecognized actuarial losses 0.1 0.1
Net periodic cost $ 0.3 $ 0.3