Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2011

Stock Based Compensation Tables [Abstract]

Summary Of Activity For Restricted Stock Units And Performance Based Restricted Stock Units [Text Block]

A summary of activity for our RSUs and PRSUs for the nine months ended September 30, 2011 and information regarding RSUs and PRSUs outstanding and expected to vest as of September 30, 2011 is as follows:

(In thousands, except per share amounts and terms)	Number of Shares		Weighted-Average Grant-Date Fair Market Value Per Share		Weighted-Average Remaining Contractual Term (in Years)	Aggregate Intrinsic Value (1)
Outstanding, December 31, 2010	7,613		$	22.95
Grants	3,403		$	42.43
Vested	(2,569	)	$	21.87
Forfeited	(363	)	$	27.11
Outstanding, September 30, 2011	8,084		$	31.30	1.8	$	254,898
Vested and expected to vest, September, 30, 2011	6,998		$	31.30	1.7	$	220,648

(1) Aggregate intrinsic value represents the closing price per share of our stock on September 30, 2011, multiplied by the number of RSUs and PRSUs outstanding or vested and expected to vest as of September 30, 2011.

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

A summary of stock option activity for the nine months ended September 30, 2011 and information regarding stock options outstanding, exercisable, and vested and expected to vest as of September 30, 2011 is as follows:

(In thousands, except per share amounts and terms)	Number of Shares		Weighted-Average Exercise Price Per Share		Weighted-Average Remaining Contractual Term (in Years)	Aggregate Intrinsic Value (1)
Outstanding, December 31, 2010	10,179		$	20.61
Grants	806		$	42.37
Exercises	(3,950	)	$	21.42
Forfeited/Cancelled/Expired	(38	)	$	21.95
Outstanding, September 30, 2011	6,997		$	22.68	3.8	$	70,651
Exercisable, September 30, 2011	5,981		$	20.28	2.9	$	67,312
Vested and expected to vest, September 30, 2011	6,856		$	22.33	3.7	$	70,411

(1) For those stock options with an exercise price below the closing price per share on September 30, 2011, aggregate intrinsic value represents the difference between the exercise price and the closing price per share of our common stock on September 30, 2011, multiplied by the number of stock options outstanding, exercisable, or vested and expected to vest as of September 30, 2011.

Assumptions Used To Estimate Fair Value Of Stock Options Rsus And Prsus [Text Block]

The assumptions used to estimate the fair value of ESPP, RSUs and PRSUs were as follows:

	Three Months Ended						Nine Months Ended
	September 30, 2011			October 1, 2010			September 30, 2011			October 1, 2010
ESPP purchase rights:
Expected term (in years)	—			—			0.8			0.7
Expected stock price volatility	—			—			34.5		%	31.2		%
Risk-free interest rate	—			—			0.2		%	0.3		%
Dividend yield	—			—			0.5		%	0.8		%
Weighted-average estimated fair value	—			—			$	12.88		$	6.56
RSUs and PRSUs:
Risk-free interest rate	0.5		%	0.7		%	0.6		%	0.8		%
Dividend yield	0.8		%	0.9		%	0.7		%	0.9		%
Weighted-average estimated fair value	$	41.50		$	27.33		$	41.71		$	26.32

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

In addition, we apply an expected forfeiture rate when amortizing stock-based compensation expense. Our stock-based compensation expense included in the consolidated statements of income for the three and nine months ended September 30, 2011 and October 1, 2010 was as follows:

	Three Months Ended						Nine Months Ended
(In thousands)	September 30, 2011			October 1, 2010			September 30, 2011			October 1, 2010
Cost of sales	$	450		$	303		$	1,200		$	897
Research and development	9,923			6,666			26,393			19,721
Selling, general, and administrative	12,178			8,180			32,390			24,280
Pre-tax stock-based compensation expense	22,551			15,149			59,983			44,898
Less: income tax benefit	(5,907		)	(4,330		)	(16,210		)	(13,045		)
Net stock-based compensation expense	$	16,644		$	10,819		$	43,773		$	31,853