Note 11 Stock-Based Compensation (Tables)

6 Months Ended

Apr. 01, 2017

Share-based Compensation [Abstract]

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

	Three Months Ended				Six Months Ended
	April 1, 2017		April 2, 2016		April 1, 2017		April 2, 2016
	(In thousands)
Stock options	$	380	$	1,243	$	930	$	2,483
Restricted stock units, including performance based awards	7,262		7,242		18,689		10,054
Total	$	7,642	$	8,485	$	19,619	$	12,537

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

	Three Months Ended				Six Months Ended
	April 1, 2017		April 2, 2016		April 1, 2017		April 2, 2016
	(In thousands)
Cost of sales	$	2,035	$	1,932	$	4,899	$	3,337
Selling, general and administrative	5,376		6,422		14,216		8,988
Research and development	231		131		504		212
Total	$	7,642	$	8,485	$	19,619	$	12,537

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Number of Shares		Weighted- Average Exercise Price ($)	Weighted- Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value of In-The-Money Options ($)
	(In thousands)				(In thousands)
Outstanding as of October 1, 2016	5,514		12.75	4.10	81,659
Granted	—		—
Exercised/Cancelled/Forfeited/Expired	(1,658	)	14.22
Outstanding as of April 1, 2017	3,856		12.12	4.16	109,450
Vested and expected to vest as of April 1, 2017	3,843		12.08	4.15	109,205
Exercisable as of April 1, 2017	3,688		11.68	4.01	106,284

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 October 1, 2016	3,998		19.57	1.35	110,183
Granted	1,023		33.15
Vested/Forfeited/Cancelled	(1,499	)	13.95
Outstanding as of April 1, 2017	3,522		25.90	1.76	142,645
Expected to vest as of April 1, 2017	2,782		25.02	1.65	112,654