Segment Reporting (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	May 31, 2013	May 31, 2012	May 31, 2013	May 31, 2012
Segment Reporting Information [Line Items]
Revenues	$ 179,131	$ 179,999	$ 308,088	$ 307,754
Depreciation and amortization	19,658	19,167	39,500	38,626
Operating income	37,080	33,169	62,227	62,868
Capital expenditures	15,526	13,296	21,632	26,092
Total assets	2,026,612	1,992,985	2,026,612	1,992,985
Equity investments	141,129	152,787	141,129	152,787
Motorsports Event
Segment Reporting Information [Line Items]
Revenues	172,287	171,323	296,287	294,273
Depreciation and amortization	18,292	17,653	36,740	35,507
Operating income	37,568	32,707	64,638	64,090
Capital expenditures	14,394	12,335	20,133	24,371
Total assets	1,600,572	1,610,430	1,600,572	1,610,430
Equity investments
All Other
Segment Reporting Information [Line Items]
Revenues	6,844	8,676	11,801	13,481
Depreciation and amortization	1,366	1,514	2,760	3,119
Operating income	(488)	462	(2,411)	(1,222)
Capital expenditures	1,132	961	1,499	1,721
Total assets	426,040	382,555	426,040	382,555
Equity investments	$ 141,129	$ 152,787	$ 141,129	$ 152,787