Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Oct. 03, 2015	Jul. 04, 2015	Apr. 04, 2015	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Earnings Per Share [Abstract]
Net income	$ 23,865	$ 23,794	$ 23,594	$ 23,079	$ 26,450	$ 24,584	$ 18,516	$ 17,663	$ 94,332	$ 87,213	$ 82,259
Basic weighted average common shares outstanding									33,618	33,785	34,330
Dilutive effect of stock options									761	870	562
Diluted weighted average shares outstanding									34,379	34,655	34,892
Basic	$ 0.71	$ 0.71	$ 0.70	$ 0.69	$ 0.78	$ 0.73	$ 0.55	$ 0.52	$ 2.81	$ 2.58	$ 2.40
Earnings Per Share, Diluted	$ 0.70	$ 0.69	$ 0.69	$ 0.67	$ 0.77	$ 0.71	$ 0.53	$ 0.51	$ 2.74	$ 2.52	$ 2.36
Antidilutive securities excluded from computation of diluted earnings per share									700	500	1,900