Condensed Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Nov. 30, 2014	Nov. 30, 2013
Revenues:
Company Drive-In sales	$ 100,138	$ 93,499
Franchise Drive-Ins:
Franchise royalties and fees	38,264	31,221
Lease revenue	1,065	886
Other	389	1,046
Total revenues	139,856	126,652
Costs and expenses:
Food and packaging	28,573	26,236
Payroll and other employee benefits	35,271	33,340
Other operating expenses, exclusive of depreciation and amortization included below	22,605	21,807
Total cost of Company Drive-In sales	86,449	81,383
Selling, general and administrative	18,788	17,005
Depreciation and amortization	11,660	10,034
Other operating (income) expense, net	421	(129)
Total costs and expenses	117,318	108,293
Income from operations	22,538	18,359
Interest expense	6,281	6,383
Interest income	(102)	(117)
Net interest expense	6,179	6,266
Income before income taxes	16,359	12,093
Provision for income taxes	6,274	3,885
Net income	$ 10,085	$ 8,208
Basic income per share	$ 0.19	$ 0.15
Diluted income per share	$ 0.18	$ 0.14