Stock-Based Compensation (Tables)

3 Months Ended

Apr. 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
(In thousands)	April 4, 2015		March 29, 2014
Line item:
Cost of products sold	$	240	$	166
Research and development	1,509		1,034
Selling, general and administrative	1,635		1,890
Acquisition related charges	3,891		$	—
Total stock-based compensation	$	7,275	$	3,090