Employee Retirement Plans - Schedule of Change in Projected Benefit Obligation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation, beginning balance	$ 181.3	$ 208.7
Service cost - benefits earning during the period	0.0	0.0
Interest cost on projected benefit obligation	5.3	5.3
Contributions	0.0	0.0
Actuarial loss	20.2	(11.6)
Benefits paid	(6.8)	(10.0)
Foreign currency loss	5.9	(11.1)
Projected benefit obligation, ending balance	$ 205.9	$ 181.3