Stock Based Compensation (Tables)

6 Months Ended

Jul. 03, 2011

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Stock-based compensation expense

	Three Months Ended				Six Months Ended
Stock-Based Compensation Expense Included In:	July 3, 2011		July 4, 2010		July 3, 2011		July 4, 2010
			(In thousands)
Cost of revenues	$	2,051	$	1,985	$	3,864	$	3,401
Research and development		6,653		6,750		12,876		12,770
Selling, general and administrative		4,948		6,439		10,579		12,126
Total stock-based compensation expense	$	13,652	$	15,174	$	27,319	$	28,297

Changes in stock options outstanding

				Weighted-Average
	Number of			Exercise
	Shares			Price Per Share
	(In thousands)
Options outstanding at December 31, 2010		71,607		$	6.97
Options granted		8,869			6.35
Options exercised		(5,327	)		5.03
Options canceled		(5,098	)		15.99
Options outstanding at July 3, 2011		70,051		$	6.38
Options exercisable at July 3, 2011		44,473		$	7.10

Unvested service-based restricted stock

	Number of Units
	(In thousands)
Unvested service-based restricted stock units at December 31, 2010		7,106
Granted		6,914
Vested		(1,745	)
Forfeited		(433	)
Unvested service-based restricted stock units at July 3, 2011		11,842

Unvested performance-based restricted stock

	Number of Units
	(In thousands)
Unvested performance-based restricted stock units at December 31, 2010		2,338
Granted		3,540
Vested		(827	)
Forfeited		(164	)
Unvested performance-based restricted stock units at July 3, 2011		4,887

Employee Stock Option [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Weighted average assumptions in fair value of option grant

	Three Months Ended						Six Months Ended
	July 3, 2011			July 4, 2010			July 3, 2011			July 4, 2010
Estimated grant date fair value per share	$	2.65		$	2.05		$	2.14		$	1.97
Expected life (years)		5.01			4.35			4.51			4.28
Risk-free interest rate		2	%		2	%		2	%		2	%
Volatility		47	%		54	%		47	%		51	%

Employee Stock Purchase Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Weighted average assumptions in fair value of option grant

	Three Months Ended
	July 3, 2011			July 4, 2010
Estimated grant date fair value per share	$	2.10		$	1.74
Expected life (years)		0.8			0.8
Risk-free interest rate		0.02	%		0.3	%
Volatility		37	%		48	%