Stock-Based Compensation (Tables)

3 Months Ended

Apr. 01, 2012

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

Schedule of Information Related to Stock-Based Compensation Plans

The following table sets forth certain information regarding the 1995 Plan and the 1995 Supplemental Plan:

	April 1, 2012
Shares available for grant	2,289,065
Shares of common stock reserved for issuance	3,995,175

Schedule of Options Outstanding and Exercisable

The following table sets forth certain information regarding all options outstanding and exercisable:

	April 1, 2012
	Options Outstanding		Options Exercisable
Number	890,940		283,029
Weighted average exercise price	$	28.36	$	21.38
Aggregate intrinsic value	$ 18.5 million		$ 7.8 million
Weighted average remaining contractual term	4.8 years		2.5 years

Schedule of Restricted Stock Units Nonvested and Expected to Vest

The following table sets forth certain information regarding all RSUs nonvested and expected to vest:

	April 1, 2012
	RSUs Nonvested		RSUs Expected to Vest
Number	815,172		702,662
Weighted average grant date per share fair value	$	32.24	$	32.00
Aggregate intrinsic value	$ 40.0 million		$ 34.5 million
Weighted average remaining term to vest	1.7 years		1.7 years

Schedule of Stock-Based Compensation Expense

Our stock-based compensation expense was included in our Consolidated Statements of Operations as follows (in thousands):

	Thirteen Weeks Ended
	April 1, 2012		April 3, 2011
Cost of sales	$	499	$	341
Research and development	514		452
Selling, general and administrative	2,600		1,996
Total stock-based compensation	$	3,613	$	2,789