Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	May 31, 2021	May 31, 2020	May 31, 2021	May 31, 2020
Income Tax Disclosure [Abstract]
Effective income tax rate reconciliation, tax credit, amount	$ (5.3)	$ (16.5)		$ (26.9)
Shares issued, tax benefit	1.5	4.0	$ 1.9	5.7
Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, amount		9.3	4.5	9.3
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	$ 3.7	$ 3.2	4.9	3.4
Effective Income Tax Rate Reconciliation, Disposition of Asset, Amount				9.9
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount				$ 1.4
Unrecognized Tax Benefits, Decrease Resulting from Acquisition			$ 11.4