Income Taxes - Narrative (Detail) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Gross unrecognized tax benefits	$ 6.7	$ 6.0	$ 38.6	$ 39.6
Gross unrecognized tax benefits that would impact effective tax rate	5.4
Payment of penalties	0.0	0.0
Payment of interest expense	3.5	$ 3.9
Tax loss carryforwards	3,016.5
Deferred tax assets, valuation allowance	716.0
Operating loss carryforwards, foreign	2,959.9
Operating loss carryforwards, foreign, jurisdictions with unlimited tax loss carryforward periods	1,793.2
Operating loss carryforwards, state	56.6
State tax losses available for carry forward	6.3
Deferred tax liability not recognized, undistributed earnings	$ 2.3