Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2017	Nov. 30, 2016
Cash flows from operating activities:
Net income	$ 11,430	$ 13,118
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	9,366	10,277
Stock-based compensation expense	970	1,073
Other	343	(3,028)
Change in operating assets and liabilities:
(Increase) decrease in restricted cash	5,016	7,472
(Increase) decrease in accounts receivable and other assets	3,703	1,391
Increase (decrease) in accounts payable	1,065	3,284
Increase (decrease) in accrued and other liabilities	(12,175)	(19,361)
Increase (decrease) in income taxes	3,358	5,005
Total adjustments	11,646	6,113
Net cash provided by operating activities	23,076	19,231
Cash flows from investing activities:
Purchases of property and equipment	(4,055)	(14,845)
Proceeds from sale of assets	685	10,826
Proceeds from sale of investment in refranchised drive-in operations	0	6,958
(Increase) decrease in notes receivable	(6,444)	3,479
Other	361	799
Net cash provided by (used in) investing activities	(9,453)	7,217
Cash flows from financing activities:
Purchases of treasury stock	(42,735)	(49,096)
Payment of dividends	(6,227)	(6,345)
Payments on debt	(22,000)	(1,062)
Proceeds from borrowings	60,000	0
Proceeds from exercise of stock options	959	29
Other	(2,428)	(976)
Net cash used in financing activities	(12,431)	(57,450)
Net increase (decrease) in cash and cash equivalents	1,192	(31,002)
Cash and cash equivalents at beginning of period	22,340	72,092
Cash and cash equivalents at end of period	23,532	41,090
Cash paid during the period for:
Interest	7,088	6,700
Income taxes (net of refunds)	61	2,514
Non-cash investing and financing activities:
Net additions to capital lease obligations	14	1,433
Change in obligation to acquire treasury stock	(1,942)	1,458
Stock options exercised by swap	4,592	0
Tax benefit related to exercise of stock awards	$ 1,714	$ 0