Retirement Benefit Plan - Summary of Amounts Recognized in Balance Sheet (Detail) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
United States [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Prepaid pension	$ 30.9	$ 2.7
Short-term accrued benefit liability	(0.1)	(0.1)
Long-term accrued benefit liability	(1.4)	(6.2)
Net amount recognized	29.4	(3.6)
Foreign [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Prepaid pension	119.9	54.9
Short-term accrued benefit liability	(1.4)	(1.3)
Long-term accrued benefit liability	(19.2)	(40.3)
Net amount recognized	$ 99.3	$ 13.3