Long-Term Debt (Detail) - USD ($) $ in Thousands	May 31, 2018	Nov. 30, 2017
Debt Instrument [Line Items]
Long-term debt	$ 260,896	$ 261,343
Debt Instrument, Unamortized Discount and Debt Issuance Costs	(1,758)	(1,877)
Less: current portion	4,121	4,091
Debt Instrument, Unamortized Discount and Debt Issuance Costs, Current	(237)	(237)
Long-Term Debt	256,775	257,252
Debt Instrument, Unamortized Discount and Debt Issuance Costs, Non-current	(1,521)	(1,640)
4.63 percent Senior Notes
Debt Instrument [Line Items]
Long-term debt	65,000	65,000
Debt Instrument, Unamortized Discount and Debt Issuance Costs	(134)	(159)
3.95 percent Senior Notes
Debt Instrument [Line Items]
Long-term debt	100,000	100,000
Debt Instrument, Unamortized Discount and Debt Issuance Costs	(264)	(286)
6.25 percent Term Loan
Debt Instrument [Line Items]
Long-term debt	46,502	46,975
Debt Instrument, Unamortized Discount and Debt Issuance Costs	0	0
TIF bond debt service funding commitment
Debt Instrument [Line Items]
Long-term debt	49,394	49,368
Debt Instrument, Unamortized Discount and Debt Issuance Costs	(1,360)	(1,432)
Line of Credit [Member]
Debt Instrument [Line Items]
Long-term debt	0	0
Debt Instrument, Unamortized Discount and Debt Issuance Costs	$ 0	$ 0