Pension Plans - Funded Status of Non-U.S. Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S. Pension Benefits
Change in pension benefit obligation:
Benefit obligation at beginning of year	$ 47.2	$ 35.2
Service cost	0.0	0.0	$ 0.0
Interest cost	1.0	1.2	1.3
Employee contributions	0.0	0.0
Benefits paid and other plan costs	(2.1)	(1.9)
Actuarial loss (gain)	(1.4)	7.0
Amendments, settlements and curtailments	0.0	0.0
Plan acquisitions and other	1.7	5.7
Foreign exchange rate impact	0.0	0.0
Benefit obligation at end of year	46.4	47.2	35.2
Change in plan assets:
Fair value of plan assets at beginning of year	29.3	26.5
Actual return on plan assets	3.4	3.5
Employer contributions	1.3	1.2
Employee contributions	0.0	0.0
Amendments and settlements	0.0	0.0
Benefits paid and other plan costs	(2.1)	(1.9)
Plan acquisitions and other	0.0	0.0
Foreign exchange rate impact	0.0	0.0
Fair value of plan assets at end of year	31.9	29.3	26.5
Funded status	(14.5)	(17.9)
Amount recorded in AOCI
Prior service cost	0.0	0.0
Actuarial loss	(3.5)	6.8
Total recorded in AOCI, before tax	(3.5)	6.8
U.S. Pension Benefits | Other assets
Change in plan assets:
Funded status	0.0	0.0
U.S. Pension Benefits | Accrued expenses and other current liabilities
Change in plan assets:
Funded status	(0.6)	(0.5)
U.S. Pension Benefits | Other long-term liabilities
Change in plan assets:
Funded status	(13.9)	(17.4)
Non-U.S. Pension Benefits
Change in pension benefit obligation:
Benefit obligation at beginning of year	371.8	328.0
Service cost	4.1	4.4	2.2
Interest cost	2.8	4.0	5.3
Employee contributions	1.3	1.2
Benefits paid and other plan costs	(9.8)	(6.1)
Actuarial loss (gain)	(11.7)	17.9
Amendments, settlements and curtailments	(1.5)	(2.3)
Plan acquisitions and other	1.0	0.0
Foreign exchange rate impact	(17.2)	24.7
Benefit obligation at end of year	340.8	371.8	328.0
Change in plan assets:
Fair value of plan assets at beginning of year	224.4	189.9
Actual return on plan assets	6.7	17.3
Employer contributions	10.2	10.6
Employee contributions	1.4	1.2
Amendments and settlements	(1.2)	(1.8)
Benefits paid and other plan costs	(9.7)	(6.1)
Plan acquisitions and other	0.0	0.0
Foreign exchange rate impact	(8.7)	13.3
Fair value of plan assets at end of year	223.1	224.4	$ 189.9
Funded status	(117.7)	(147.4)
Amount recorded in AOCI
Prior service cost	2.4	2.9
Actuarial loss	77.1	99.6
Total recorded in AOCI, before tax	79.5	102.5
Non-U.S. Pension Benefits | Other assets
Change in plan assets:
Funded status	6.2	6.3
Non-U.S. Pension Benefits | Accrued expenses and other current liabilities
Change in plan assets:
Funded status	(3.9)	(4.0)
Non-U.S. Pension Benefits | Other long-term liabilities
Change in plan assets:
Funded status	$ (120.0)	$ (149.7)