Condensed Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Nov. 30, 2013	Nov. 30, 2012
Revenues:
Company Drive-In sales	$ 93,499	$ 93,456
Franchise Drive-Ins:
Franchise royalties and fees	31,221	29,920
Lease revenue	886	1,486
Other	1,046	1,146
Total revenues	126,652	126,008
Costs and expenses:
Food and packaging	26,236	26,632
Payroll and other employee benefits	33,340	33,465
Other operating expenses, exclusive of depreciation and amortization included below	21,807	21,976
Total cost of Company Drive-In sales	81,383	82,073
Selling, general and administrative	17,005	16,130
Depreciation and amortization	10,034	10,595
Other operating (income) expense, net	(129)	7
Total costs and expenses	108,293	108,805
Income from operations	18,359	17,203
Interest expense	6,383	7,675
Interest income	(117)	(141)
Net interest expense	6,266	7,534
Income before income taxes	12,093	9,669
Provision for income taxes	3,885	3,536
Net income	$ 8,208	$ 6,133
Basic income per share	$ 0.15	$ 0.11
Diluted income per share	$ 0.14	$ 0.11