Pension Plans - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended			12 Months Ended
	Dec. 31, 2021	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Net benefit surplus / (obligation)	$ 11.8			$ 11.8	$ (50.8)
Benefits paid				15.4	17.2
Defined benefit pension charge				(1.9)	(3.9)	$ (2.8)
Defined benefit pension credit				2.3	4.3	1.3
Curtailment gain				0.0	0.0	(1.8)
Defined benefit plan, expected amortization, next fiscal year	1.9			1.9
Defined benefit plan, expected amortization of gain (loss), next fiscal year	2.3			2.3
Defined benefit plan, expected amortization of prior service credit	0.4			0.4
Settlement loss				0.0	0.0	0.8
Curtailment gain			$ 1.8
Defined benefit plan, lump sum payment		$ 2.7
Decrease in defined benefit plan obligation		3.6
Immediate recognition of unamortized actuarial losses		$ (0.8)	$ 0.3
Employer contribution amount				18.2
Expected future employer contributions, next fiscal year	0.0			0.0
Increase in liability due to securing insurance for preparation of settelement				$ 2.8
Minimum
Defined Benefit Plan Disclosure [Line Items]
Termination term				12 months
Maximum
Defined Benefit Plan Disclosure [Line Items]
Termination term				18 months
Selling, General and Administrative Expenses
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension charge				$ 0.4	0.4	0.3
U.K.
Defined Benefit Plan Disclosure [Line Items]
Net benefit surplus / (obligation)	13.7			13.7	(45.1)
Benefits paid	$ 12.7			13.1	14.7
Defined benefit pension charge				(1.6)	(3.3)	(2.1)
Curtailment gain				0.0	0.0	0.0
Settlement loss				$ 0.0	0.0	0.0
U.K. | Defined Benefit Plan, Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Plan assets, target allocation percentage	40.00%			40.00%
Plan assets, actual allocation percentage	60.00%			60.00%
U.K. | Defined Benefit Plan, Equity Securities | Forecast
Defined Benefit Plan Disclosure [Line Items]
Plan assets, target allocation percentage							75.00%
U.S. / other
Defined Benefit Plan Disclosure [Line Items]
Net benefit surplus / (obligation)	$ (1.9)			$ (1.9)	(5.7)
Benefits paid				2.3	2.5
Defined benefit pension charge				(0.3)	(0.6)	(0.7)
Curtailment gain				0.0	0.0	(1.8)
Settlement loss				$ 0.0	$ 0.0	$ 0.8