Segment Reporting (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2016	Aug. 31, 2015
Segment Reporting Information [Line Items]
Revenues	$ 129,394	$ 125,878	$ 440,501	$ 427,359
Depreciation and amortization	25,996	24,224	77,028	72,990
Operating income (loss)	3,737	(7,138)	58,582	33,670
Capital expenditures	28,456	29,809	110,234	105,737
Total Assets	2,184,554	2,135,197	2,184,554	2,135,197
Equity Investments	95,864	107,721	95,864	107,721
Motorsports Event
Segment Reporting Information [Line Items]
Revenues	118,531	109,854	415,707	395,434
Depreciation and amortization	24,918	23,009	73,750	69,232
Operating income (loss)	2,939	(5,890)	57,748	37,573
Capital expenditures	18,844	28,230	89,678	101,227
Total Assets	1,672,589	1,674,431	1,672,589	1,674,431
All Other
Segment Reporting Information [Line Items]
Revenues	10,863	16,024	24,794	31,925
Depreciation and amortization	1,078	1,215	3,278	3,758
Operating income (loss)	798	(1,248)	834	(3,903)
Capital expenditures	9,612	1,579	20,556	4,510
Total Assets	511,965	460,766	511,965	460,766
Equity Investments	$ 95,864	$ 107,721	$ 95,864	$ 107,721