Condensed Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2016	May 31, 2015
Revenues:
Company Drive-In sales	$ 115,143	$ 118,369	$ 314,339	$ 310,816
Franchise Drive-Ins:
Franchise royalties and fees	46,687	43,704	122,656	114,375
Lease revenue	2,141	1,569	5,132	3,613
Other	1,268	1,106	2,075	2,019
Total revenues	165,239	164,748	444,202	430,823
Costs and expenses:
Food and packaging	32,089	32,727	87,248	87,128
Payroll and other employee benefits	39,912	40,898	111,635	110,049
Other operating expenses, exclusive of depreciation and amortization included below	22,442	22,955	65,450	65,484
Total cost of Company Drive-In sales	94,443	96,580	264,333	262,661
Selling, general and administrative	20,617	20,699	62,342	57,625
Depreciation and amortization	11,405	11,435	33,461	34,634
Other operating (income) expense, net	(106)	(336)	(3,071)	4
Total costs and expenses	126,359	128,378	357,065	354,924
Income from operations	38,880	36,370	87,137	75,899
Interest expense	6,776	6,382	19,465	18,981
Interest income	(121)	(91)	(326)	(290)
Debt extinguishment costs	8,750		8,750
Net interest expense	15,405	6,291	27,889	18,691
Income before income taxes	23,475	30,079	59,248	57,208
Provision for income taxes	8,122	9,637	20,618	19,019
Net income	$ 15,353	$ 20,442	$ 38,630	$ 38,189
Basic income per share	$ 0.32	$ 0.39	$ 0.79	$ 0.72
Diluted income per share	0.31	0.38	0.77	0.70
Cash dividends declared per common share	$ 0.11	$ 0.09	$ 0.33	$ 0.27