Employee Benefit Plans (Tables)

3 Months Ended

Mar. 30, 2014

Employee Benefits and Share-based Compensation [Abstract]

Schedule Of Stock Option Activity

Option Activity

Stock options activity during the three months ended March 30, 2014, was as follows:

	Options Outstanding
	Number of shares		Weighted Average Exercise Price Per Share
	(in thousands)		(in dollars)
December 31, 2013	4,165		$	30.11
Granted	—		—
Exercised	(167	)	24.27
Cancelled	(32	)	36.65
Expired	(76	)	35.95
March 30, 2014	3,890		$	30.19

Schedule Of RSU Activity

RSU Activity

RSU activity during the three months ended March 30, 2014, was as follows:

	RSUs Outstanding
	Number of shares		Weighted Average Grant Date Fair Value Per Share
	(in thousands)		(in dollars)
December 31, 2013	731		$	29.40
RSUs granted	23		31.03
RSUs vested	(3	)	27.95
RSUs cancelled	(22	)	28.70
March 30, 2014	729		$	29.37

Schedule Of Valuation And Expense Information

The following table sets forth the weighted average assumptions used to fair value option grants during the three months ended March 31, 2013:

	Three Months Ended
	March 31, 2013
Expected life (in years)	4.4
Risk-free interest rate	0.74	%
Expected volatility	50.3	%
Dividend yield	—

Schedule Of Total Stock-Based Compensation Expense Resulting From Stock Options, Restricted Stock Awards, And The Employee Stock Purchase Plan

The following table sets forth the total stock-based compensation expense resulting from stock options, RSUs and the ESPP included in the Company’s unaudited condensed consolidated statements of operations (in thousands):

	Three Months Ended
	March 30, 2014		March 31, 2013
Cost of revenue	$	471	$	189
Research and development	1,396		672
Sales and marketing	1,949		1,230
General and administrative	1,314		1,499
Total stock-based compensation	$	5,130	$	3,590