Stock-Based Compensation (Tables)

6 Months Ended

Jul. 04, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Stock-Based Compensation Expense

Total stock-based compensation expense included in our Consolidated Statements of Operations was as follows: 

	Three Months Ended				Six Months Ended
(In thousands)	July 4, 2015		June 28, 2014		July 4, 2015		June 28, 2014
Line item:
Cost of products sold	$	398	$	211	$	638	$	377
Research and development	2,346		1,354		3,855		2,388
Selling, general and administrative	2,235		1,755		3,870		3,645
Acquisition related charges	—		—		3,891		—
Total stock-based compensation	$	4,979	$	3,320	$	12,254	$	6,410