Income Taxes - Deferred Taxes (Detail) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Total deferred tax liabilities	$ 17.3	$ 66.7
Income Taxes [Line Items]
Total deferred tax liabilities	17.3	66.7
Deferred Tax Liability Not Recognized, Undistributed Earnings of Foreign Subsidiaries [Abstract]
Research and development costs	18.1	0.0
Other non-current assets
Income Tax Disclosure [Abstract]
Total deferred tax liabilities	26.0	23.1
Income Taxes [Line Items]
Total deferred tax liabilities	26.0	23.1
Deferred tax liabilities
Income Tax Disclosure [Abstract]
Total deferred tax liabilities	43.3	89.8
Income Taxes [Line Items]
Total deferred tax liabilities	$ 43.3	$ 89.8