Stock-Based Compensation (Tables)

9 Months Ended

Sep. 29, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation Expense, Net of Estimated Forfeitures

Stock-based compensation expense, net of estimated forfeitures, related to the Company’s stock options, ESPP and RSUs by expense category was as follows:

	Three Months Ended				Nine Months Ended
	September 29, 2013		September 30, 2012		September 29, 2013		September 30, 2012
	(In thousands)
Cost of revenues	$	2,059	$	2,573	$	7,171	$	9,088
Research and development		8,810		11,170		30,838		35,451
Selling, general and administrative		9,340		13,643		29,611		38,999
Total stock-based compensation expense	$	20,209	$	27,386	$	67,620	$	83,538

Summary of Weighted-Average Assumptions in Fair Value of Option Grant

The following table summarizes the weighted-average assumptions that the Company applied in the lattice model:

	Three Months Ended						Nine Months Ended
	September 29, 2013			September 30, 2012			September 29, 2013			September 30, 2012
Estimated grant date fair value per share	$	2.28		$	2.50		$	2.33		$	2.84
Expected life (years)		4.35			4.46			4.38			4.46
Risk-free interest rate		1	%		1	%		1	%		1	%
Volatility		47	%		52	%		49	%		47	%
Dividend yield		2	%		—			0	%		—

Summary of Changes in Stock Options Outstanding

The following table summarizes changes in stock options outstanding:

	Number of Shares			Weighted-Average Exercise Price Per Share		Weighted-Average Remaining Contractual Term		Aggregate Intrinsic Value
	(In thousands)					(In years)		(In thousands)
Options outstanding at December 31, 2012		56,042		$	5.75
Granted		6,636		$	6.93
Exercised		(6,936	)	$	3.41
Canceled		(4,190	)	$	8.11
Options outstanding at September 29, 2013		51,552		$	6.02		3.47	$	107,013
Options exercisable at September 29, 2013		34,481		$	5.81		2.42	$	80,237

Summary of Unvested Service-Based Restricted Stock

The following table summarizes changes in service-based RSUs outstanding:

	Number of Units			Weighted-Average Grant Date Fair Value per Share
	(In thousands)
Unvested service-based RSUs outstanding at December 31, 2012		17,655		$	6.99
Granted		8,691		$	6.95
Vested		(5,249	)	$	6.80
Forfeited		(1,059	)	$	6.84
Unvested service-based RSUs outstanding at September 29, 2013		20,038		$	7.03

Summary of Unvested Performance-Based Restricted Stock

The following table summarizes changes in performance-based RSUs outstanding:

	Number of Units			Weighted-Average Grant Date Fair Value per Share
	(In thousands)
Unvested performance-based RSUs outstanding at December 31, 2012		5,634		$	7.29
Granted		1,441		$	6.89
Vested		(3,167	)	$	7.41
Forfeited		(392	)	$	6.61
Unvested performance-based RSUs outstanding at September 29, 2013		3,516		$	7.10

Summary of Weighted-Average Assumptions in Employee Stock Purchase Plan

The following table summarizes the weighted-average assumptions that the Company applied in the calculation of the fair value for the May 2013 and May 2012 grants:

	2013			2012
Estimated grant date fair value per share	$	1.88		$	2.19
Expected life (years)		0.8			0.8
Risk-free interest rate		0.11	%		0.17	%
Volatility		34	%		41	%