Retirement Benefit Plans - Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Postretirement Medical Benefits
Defined Benefit Plan, Plan Assets, Category [Line Items]
Prior service cost	$ 0.0	$ 0.0	$ 0.0
Net actuarial (gain) loss	(1.1)	0.6	(0.3)
Amortization of net actuarial (loss) gain	0.0	0.0	0.0
Total recognized in other comprehensive (income) loss	(1.1)	0.6	(0.3)
Total recognized in net benefit (credit) cost and other comprehensive (income) loss	(0.9)	0.8	0.0
UNITED STATES | Pension Plan
Defined Benefit Plan, Plan Assets, Category [Line Items]
Prior service cost	0.0	0.0	0.0
Net actuarial (gain) loss	(0.1)	0.0	0.0
Amortization of net actuarial (loss) gain	(0.1)	0.0	(0.1)
Total recognized in other comprehensive (income) loss	(0.2)	0.0	(0.1)
Total recognized in net benefit (credit) cost and other comprehensive (income) loss	(0.1)	0.1	0.0
Non-U.S. Plan | Pension Plan
Defined Benefit Plan, Plan Assets, Category [Line Items]
Prior service cost	0.0	0.0	0.1
Net actuarial (gain) loss	(5.0)	0.2	1.6
Amortization of net actuarial (loss) gain	0.0	(0.1)	0.0
Total recognized in other comprehensive (income) loss	(5.0)	0.1	1.7
Total recognized in net benefit (credit) cost and other comprehensive (income) loss	$ (4.9)	$ 0.0	$ 1.6