Note 11 Earnings Per Share (Tables)

12 Months Ended

Sep. 29, 2018

Earnings Per Share [Abstract]

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

	Year Ended
	September 29, 2018			September 30, 2017		October 1, 2016
	(In thousands, except per share amounts)
Numerator:
Net income (loss)	$	(95,533	)	$	138,833	$	187,838
Denominator:
Weighted average common shares outstanding	69,833			74,481		75,094
Effect of dilutive stock options and restricted stock units	—			3,647		3,693
Denominator for diluted earnings per share	69,833			78,128		78,787
Net income (loss) per share:
Basic	$	(1.37	)	$	1.86	$	2.50
Diluted	$	(1.37	)	$	1.78	$	2.38

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

	As of
	September 29, 2018	September 30, 2017	October 1, 2016
Potentially dilutive securities:	(In thousands)
Employee stock options	2,061	—	477
Restricted stock units	1,460	6	3
Total	3,521	6	480