Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Feb. 28, 2017	Feb. 29, 2016
Cash flows from operating activities:
Net income	$ 24,081	$ 23,277
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	20,011	22,056
Stock-based compensation expense	1,802	1,919
Other	(9,972)	(3,408)
(Increase) decrease in operating assets:
Restricted cash	7,159	4,787
Accounts receivable and other assets	4,621	2,514
Increase (decrease) in operating liabilities:
Accounts payable	(941)	1,464
Accrued and other liabilities	(15,605)	(9,932)
Income taxes	(3,581)	(3,919)
Total adjustments	3,494	15,481
Net cash provided by operating activities	27,575	38,758
Cash flows from investing activities:
Purchases of property and equipment	(27,772)	(17,808)
Proceeds from sale of assets	27,073	9,490
Proceeds from sale of investment in refranchised drive-in operations	8,354	0
Other	11,579	3,201
Net cash provided by (used in) investing activities	19,234	(5,117)
Cash flows from financing activities:
Payments on debt	(4,416)	(59,397)
Proceeds from borrowings	29,000	116,000
Purchases of treasury stock	(97,318)	(74,326)
Proceeds from exercise of stock options	1,792	3,754
Payment of dividends	(12,431)	(10,852)
Other	(1,638)	95
Net cash used in financing activities	(85,011)	(24,726)
Net increase (decrease) in cash and cash equivalents	(38,202)	8,915
Cash and cash equivalents at beginning of period	72,092	27,191
Cash and cash equivalents at end of period	33,890	36,106
Cash paid during the period for:
Interest	13,410	11,831
Income taxes (net of refunds)	15,857	14,645
Non-cash investing and financing activities:
Additions to direct financing leases from property, equipment and capital leases	21,652	0
Net additions to capital lease obligations	1,433	645
Change in obligation to acquire treasury stock	$ 215	$ (2,632)