Employee Benefit Plans - Schedule of Components of Period Benefit Costs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Pension Plans | U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	$ 0.0	$ 0.0
Interest cost of projected benefit obligations	0.7	1.0
Expected return on plan assets	(1.2)	(1.3)
Amortization of prior service cost	0.0	0.0
Amortization of actuarial net loss	0.8	0.7
Net periodic benefit cost	0.3	0.4
Pension Plans | Non-US Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	0.6	0.5
Interest cost of projected benefit obligations	0.3	0.4
Expected return on plan assets	(0.3)	(0.2)
Amortization of prior service cost	0.0	0.0
Amortization of actuarial net loss	0.5	0.4
Net periodic benefit cost	1.1	1.1
Postretirement Health and Other Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	0.0	0.1
Interest cost of projected benefit obligations	0.0	0.1
Expected return on plan assets	0.0	0.0
Amortization of prior service cost	(0.7)	(0.7)
Amortization of actuarial net loss	0.0	0.0
Net periodic benefit cost	$ (0.7)	$ (0.5)