Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	May 31, 2017	May 31, 2016	May 31, 2017	May 31, 2016
Income Tax Examination [Line Items]
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	$ 1.3	$ 0.2	$ 2.2	$ 0.9
Effective Income Tax Rate Reconciliation, Tax Credit, Amount	8.3	6.9	10.7	10.7
Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount		$ 6.4	0.1	6.4
Change in enacted tax rate				1.0
Domestic Tax Authority [Member]
Income Tax Examination [Line Items]
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	$ 7.0		$ 8.6
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount				$ 2.4