Condensed Consolidated Statements Of Earnings (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 12, 2015	Apr. 13, 2014	Apr. 12, 2015	Apr. 13, 2014
Common Stock, Dividends, Per Share, Cash Paid	$ 0.20	$ 0.00	$ 0.40	$ 0.00
Revenues:
Company restaurant sales	$ 268,904	$ 257,773	$ 620,800	$ 596,602
Franchise revenues	89,218	83,097	205,943	194,350
Total revenue	358,122	340,870	826,743	790,952
Company restaurant costs:
Food and packaging	84,032	81,422	197,141	189,660
Payroll and employee benefits	73,073	71,616	168,752	165,432
Occupancy and other	56,468	56,998	131,499	131,707
Total company restaurant costs	213,573	210,036	497,392	486,799
Franchise costs	43,059	41,996	100,200	97,507
Selling, general and administrative expenses	52,472	48,660	115,567	107,816
Impairment and other charges, net	2,130	9,056	4,310	10,965
Losses (gains) on the sale of company-operated restaurants	5,020	(1,757)	4,170	(2,218)
Total operating costs and expenses	316,254	307,991	721,639	700,869
Earnings from operations	41,868	32,879	105,104	90,083
Interest expense, net	4,220	4,311	9,433	8,853
Earnings from continuing operations and before income taxes	37,648	28,568	95,671	81,230
Income taxes	14,286	10,304	35,211	29,956
Earnings from continuing operations	23,362	18,264	60,460	51,274
Losses from discontinued operations, net of income tax benefit	(357)	(2,463)	(1,620)	(3,187)
Net earnings	$ 23,005	$ 15,801	$ 58,840	$ 48,087
Net earnings per share - basic:
Earnings from continuing operations (usd per share)	$ 0.62	$ 0.44	$ 1.58	$ 1.22
Losses from discontinued operations (usd per share)	$ (0.01)	$ (0.06)	$ (0.04)	$ (0.08)
Net earnings per share (usd per share)	$ 0.61	$ 0.38	$ 1.53	$ 1.14
Net earnings per share - diluted:
Earnings from continuing operations (usd per share)	$ 0.61	$ 0.43	$ 1.55	$ 1.18
Losses from discontinued operations (usd per share)	$ (0.01)	$ (0.06)	$ (0.04)	$ (0.07)
Net earnings per share (usd per share)	$ 0.60	$ 0.37	$ 1.51	$ 1.11
Weighted-average shares outstanding:
Basic (in shares)	37,970	41,464	38,353	42,018
Diluted (in shares)	38,566	42,632	39,039	43,336