Employee Benefit Plans - Change in Benefit Obligation and Funded Status (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Document Fiscal Year Focus	2019
Foreign Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	$ 53.7	$ 57.9
Service cost	0.3	0.4	$ 0.3
Interest cost	1.5	1.3	1.5
Defined Benefit Plan, Benefit Obligation, Benefits Paid	2.0	1.5
Actuarial (gain) loss	7.7	3.8
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment	0.0	1.0
Currency translation and other (2)	2.9	(1.6)
Benefit obligation at end of year	64.1	53.7	57.9
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	47.8	51.8
Actual return on plan assets	6.5	(1.2)
Company contributions	3.4	1.9
Defined Benefit Plan, Plan Assets, Benefits Paid	2.0	1.5
Currency translation and other	2.5	(3.2)
Fair value of plan assets at end of year	58.2	47.8	$ 51.8
Funded status	(5.9)	(5.9)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Other assets and deferred charges	0.8	1.0
Other liabilities	(6.7)	(6.9)
Funded status	(5.9)	(5.9)
Accumulated Other Comprehensive Loss (Earnings) [Abstract]
Net actuarial losses	21.2	18.0
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax	1.2	1.3
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), Tax	(3.8)	(3.8)
Total accumulated other comprehensive loss, net of tax	18.6	15.5
Accumulated benefit obligation	$ 62.9	$ 52.6