Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 28, 2013	Sep. 29, 2012	Oct. 01, 2011
Earnings Per Share [Abstract]
Stock Repurchased During Period, Shares									1,821,698		6,300,000
Net income	$ 24,464	$ 23,204	$ 17,975	$ 16,616	$ 728	$ 23,533	$ 19,958	$ 17,870	$ 82,259	$ 62,089	$ 89,256
Basic weighted average common shares outstanding									34,330,000	34,874,000	38,063,000
Dilutive effect of stock options									562,000	655,000	737,000
Diluted weighted average shares outstanding									34,892,000	35,529,000	38,800,000
Basic	$ 0.73	$ 0.69	$ 0.52	$ 0.48	$ 0.02	$ 0.67	$ 0.57	$ 0.52	$ 2.40	$ 1.78	$ 2.34
Earnings Per Share, Diluted	$ 0.71	$ 0.68	$ 0.52	$ 0.47	$ 0.02	$ 0.66	$ 0.56	$ 0.51	$ 2.36	$ 1.75	$ 2.30
Antidilutive securities excluded from computation of diluted earnings per share									1,900,000	1,400,000	1,300,000