Long-Term Debt (Detail) - USD ($) $ in Thousands	May 31, 2017	Nov. 30, 2016
Debt Instrument [Line Items]
Long-term debt	$ 264,607	$ 265,023
Debt Instrument, Unamortized Discount and Debt Issuance Costs	(2,036)	(2,203)
Less: current portion	3,767	3,738
Debt Instrument, Unamortized Discount and Debt Issuance Costs, Current	(278)	(334)
Long-Term Debt	260,840	261,285
Debt Instrument, Unamortized Discount and Debt Issuance Costs, Non-current	(1,758)	(1,869)
4.63 percent Senior Notes
Debt Instrument [Line Items]
Long-term debt	65,000	65,000
Debt Instrument, Unamortized Discount and Debt Issuance Costs	(185)	(210)
3.95 percent Senior Notes
Debt Instrument [Line Items]
Long-term debt	100,000	100,000
Debt Instrument, Unamortized Discount and Debt Issuance Costs	(307)	(328)
6.25 percent Term Loan
Debt Instrument [Line Items]
Long-term debt	47,434	47,878
Debt Instrument, Unamortized Discount and Debt Issuance Costs	0	0
TIF bond debt service funding commitment
Debt Instrument [Line Items]
Long-term debt	52,173	52,145
Debt Instrument, Unamortized Discount and Debt Issuance Costs	(1,544)	(1,665)
Line of Credit [Member]
Debt Instrument [Line Items]
Long-term debt	0	0
Debt Instrument, Unamortized Discount and Debt Issuance Costs	$ 0	$ 0