Long-Term Debt - Non-printing (Detail)	Aug. 31, 2017	Nov. 30, 2016
4.63 percent Senior Notes
Debt Instrument [Line Items]
Debt, interest rate	4.63%	4.63%
3.95 percent Senior Notes
Debt Instrument [Line Items]
Debt, interest rate	3.95%	3.95%
6.25 percent Term Loan
Debt Instrument [Line Items]
Debt, interest rate	6.25%	6.25%