Note 9 Earnings Per Share (Tables)

12 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Year Ended
	September 30, 2017		October 1, 2016		October 3, 2015
	(In thousands, except per share amounts)
Numerator:
Net income	$	138,833	$	187,838	$	377,261
Denominator:
Weighted average common shares outstanding	74,481		75,094		81,818
Effect of dilutive stock options and restricted stock units	3,647		3,693		3,823
Denominator for diluted earnings per share	78,128		78,787		85,641
Net income per share:
Basic	$	1.86	$	2.50	$	4.61
Diluted	$	1.78	$	2.38	$	4.41

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	As of
	September 30, 2017	October 1, 2016	October 3, 2015
Potentially dilutive securities:	(In thousands)
Employee stock options	—	477	776
Restricted stock units	6	3	13
Total	6	480	789