Long-Term Debt (Detail) - USD ($) $ in Thousands	Aug. 31, 2016	Nov. 30, 2015
Debt Instrument [Line Items]
Long-term debt	$ 267,787	$ 268,372
Debt Instrument, Unamortized Discount and Debt Issuance Costs	(2,286)	(2,536)
Less: current portion	3,449	3,408
Debt Instrument, Unamortized Discount and Debt Issuance Costs, Current	(334)	(334)
Long-Term Debt	264,338	264,964
Debt Instrument, Unamortized Discount and Debt Issuance Costs, Non-current	(1,952)	(2,202)
4.63 percent Senior Notes
Debt Instrument [Line Items]
Long-term debt	65,000	65,000
Debt Instrument, Unamortized Discount and Debt Issuance Costs	(223)	(261)
3.95 percent Senior Notes
Debt Instrument [Line Items]
Long-term debt	100,000	100,000
Debt Instrument, Unamortized Discount and Debt Issuance Costs	(338)	(370)
6.25 percent Term Loan
Debt Instrument [Line Items]
Long-term debt	48,095	48,726
Debt Instrument, Unamortized Discount and Debt Issuance Costs	0	0
TIF bond debt service funding commitment
Debt Instrument [Line Items]
Long-term debt	54,692	54,646
Debt Instrument, Unamortized Discount and Debt Issuance Costs	(1,725)	(1,905)
Line of Credit [Member]
Debt Instrument [Line Items]
Long-term debt	0	0
Debt Instrument, Unamortized Discount and Debt Issuance Costs	$ 0	$ 0