Earnings per Share (EPS) and Common Stock (Earnings per Share Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Earnings Per Share and Common Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount				100
Net income	$ 17,435	$ 38,026	$ 53,111	$ 121,439
Weighted average shares outstanding—Basic (in shares)	114,764	118,328	115,021	118,753
Dilutive effect of employee stock options, restricted shares and restricted stock units (in shares)	1,261	1,573	1,309	1,820
Weighted average shares outstanding—Diluted (in shares)	116,025	119,901	116,330	120,573
Earnings per share—Basic (in USD per share)	$ 0.15	$ 0.32	$ 0.46	$ 1.02
Earnings per share—Diluted (in USD per share)	$ 0.15	$ 0.32	$ 0.46	$ 1.01