Note 13 Stock-Based Compensation (Tables)

6 Months Ended

Mar. 30, 2019

Share-based Compensation [Abstract]

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

	Three Months Ended				Six Months Ended
	March 30, 2019		March 31, 2018		March 30, 2019		March 31, 2018
	(In thousands)
Stock options	$	6	$	2,566	$	99	$	3,743
Restricted stock units, including performance based awards	6,620		7,729		12,343		15,194
Total	$	6,626	$	10,295	$	12,442	$	18,937

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

	Three Months Ended				Six Months Ended
	March 30, 2019		March 31, 2018		March 30, 2019		March 31, 2018
	(In thousands)
Cost of sales	$	2,582	$	1,851	$	4,317	$	4,299
Selling, general and administrative	3,939		8,388		7,929		14,552
Research and development	105		56		196		86
Total	$	6,626	$	10,295	$	12,442	$	18,937

Schedule of Restricted Stock Units Award Activity [Table Text Block]

	Number of Shares		Weighted- Average Grant Date Fair Value ($)	Weighted- Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value ($)
	(In thousands)				(In thousands)
Outstanding as of September 29, 2018	3,303		30.33	1.21	97,913
Granted	1,677		24.58
Vested/Forfeited/Cancelled	(1,697	)	30.03
Outstanding as of March 30, 2019	3,283		27.55	1.62	100,282
Expected to vest as of March 30, 2019	2,598		27.70	1.42	79,376