Segment Reporting (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2014	May 31, 2013
Segment Reporting Information [Line Items]
Revenues	$ 190,976	$ 179,131	$ 323,104	$ 308,088
Depreciation and amortization	22,788	19,658	45,561	39,500
Operating income (loss)	34,739	37,080	57,078	62,227
Capital expenditures	43,461	15,526	74,708	21,632
Total assets	2,117,570	2,026,612	2,117,570	2,026,612
Equity investments	129,687	141,129	129,687	141,129
Motorsports Event
Segment Reporting Information [Line Items]
Revenues	184,113	172,287	311,958	296,287
Depreciation and amortization	21,361	18,292	42,676	36,740
Operating income (loss)	35,885	37,568	60,643	64,638
Capital expenditures	39,140	14,394	69,501	20,133
Total assets	1,588,582	1,600,572	1,588,582	1,600,572
Equity investments
All Other
Segment Reporting Information [Line Items]
Revenues	6,863	6,844	11,146	11,801
Depreciation and amortization	1,427	1,366	2,885	2,760
Operating income (loss)	(1,146)	(488)	(3,565)	(2,411)
Capital expenditures	4,321	1,132	5,207	1,499
Total assets	528,988	426,040	528,988	426,040
Equity investments	$ 129,687	$ 141,129	$ 129,687	$ 141,129