Note 11 Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Earnings Per Share [Line Items]
Net income	$ 20,721	$ 18,738	$ 64,662	$ 40,550
Weighted average shares used in computing per share amount:
Weighted average common shares outstanding	82,467	83,082	82,988	82,515
Effect of dilutive stock options and restricted stock units	3,768	2,520	3,609	2,304
Denominator for diluted earnings per share	86,235	85,602	86,597	84,819
Net income per share:
Basic	$ 0.25	$ 0.23	$ 0.78	$ 0.49
Diluted	$ 0.24	$ 0.22	$ 0.75	$ 0.48
Potentially dilutive securities [Abstract]
Potentially dilutive securities	2,630	5,898	3,110	7,371
Employee stock options
Potentially dilutive securities [Abstract]
Potentially dilutive securities	2,522	5,895	3,074	7,368
Restricted stock units
Potentially dilutive securities [Abstract]
Potentially dilutive securities	108	3	36	3