Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Aug. 31, 2025	Aug. 31, 2024	Aug. 31, 2025	Aug. 31, 2024
Income Tax Disclosure [Abstract]
Effective income tax rate reconciliation, tax credit, amount	$ 20.0	$ 16.3	$ 27.6	$ 34.9
Reduction resulting from state tax matter	8.1	8.3	8.0	6.4
Tax benefit from the reversal of certain reserves of unrecognized tax benefits and related interest	8.7		10.2
Tax benefits from the reversal of certain reserves and uncertainties, associated with the expiration of statutes of limitations	4.4	5.5	5.9	6.8
Tax benefit from an adjustment to a prior year tax accrual	$ 3.5		3.5
Tax benefit resulting from revaluation of deferred taxes			5.0
Excess tax benefits associated with stock compensation			$ 1.0
Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, amount		4.6		4.6
Change in deferred tax assets valuation allowance resulting from international legal entity reorganization, amount				19.4
Tax benefit resulting from settlement with taxing authority				5.5
Prior year tax accrual adjustment		$ 1.5		$ 1.5