v2.4.0.6

Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2011

Employee Benefit Plans [Abstract]

Summary Of Stock Option Activity

		Number of Shares				Weighted- Average Exercise Price				Weighted- Average Remaining Contractual Term (years)				Aggregate Intrinsic Value
Outstanding at December 31, 2010			8,353			$	7.56
Granted			0			$	0
Exercised			(376	)		$	6.02
Cancelled			(160	)		$	9.62
Outstanding at December 31, 2011			7,817			$	7.59				6.3			$	19,039
Exercisable at December 31, 2011			6,513			$	7.65				6.0			$	15,788

Summary Of Stock Options Outstanding

Options Outstanding																		Options Exercisable
Range of Exercise Price		Number of Shares				Weighted Average Remaining Contractual Life				Weighted Average Exercise Price				Aggregate Intrinsic Value				Number of Shares				Weighted Average Exercise Price				Aggregate Intrinsic Value
$0.50 – $2.40			231				2.6			$	1.67			$	1,766				231			$	1.67			$	1,766
$3.19 – $4.71			1,612				6.9			$	3.50				9,360				1,225			$	3.56				7,048
$5.05 – $8.06			3,323				6.2			$	7.03				7,574				2,953			$	7.06				6,641
$8.26 – $9.21			837				6.0			$	8.91				339				816			$	8.90				333
$9.36 – $25.80			1,814				6.5			$	12.41				0				1,288			$	13.15				0
$0.50 – $25.80			7,817				6.3			$	7.59			$	19,039				6,513			$	7.65			$	15,788

Schedule Of Nonvested Stock Option Activity

		Shares				Weighted Average Grant Date Fair Value
		(in thousands)
Nonvested at December 31, 2010			2,825			$	4.21
Granted			0				0
Vested			(1,361	)			4.18
Forfeited			(160	)			5.65
Nonvested at December 31, 2011			1,304			$	4.30

Schedule Of Share-Based Compensation Expenses

		Years Ended December 31,
		2011				2010				2009
Cost of sales		$	1,438			$	746			$	580
Research and development			4,598				2,695				1,850
Selling, general and administrative			7,477				6,000				5,936
Share-based compensation expense included in operating expenses		$	13,513			$	9,441			$	8,366

Schedule Of Assumptions Used To Estimate Fair Value Of Each Option Grant

		Years Ended December 31,
		2011				2010				2009
Risk free interest rate			1.5 – 2.5	%			1.8 –2.8	%			2.0 – 2.8	%
Dividend yield			0	%			0	%			0	%
Expected volatility of the Company's stock			0.68 – 0.69				0.67 –0.68				0.63 – 0.67
Expected life (in years)			6.1				6.1				6.1

Estimate Of Fair Value of ESPP

		Years Ended December 31,
		2011				2010				2009
Risk free interest rate			0.21 – 0.26	%			0.35 – 0.38	%			0.5 – 1.0	%
Dividend yield			0	%			0	%			0	%
Expected volatility of the Company's stock			0.31 – 0.49				0.32 – 0.45				0.69 – 0.91
Expected life (in years)			1				1				1

Schedule Of Restricted Stock Units Activity

		Shares				Weighted Average Grant Date Fair Value				Aggregate Intrinsic Value
Nonvested at December 31, 2010			499			$	9.94
Granted			1,754				13.99
Vested			(264	)			10.84
Forfeited			(54	)			13.04
Nonvested at December 31, 2011			1,935			$	13.40			$	18,014

Concentration Of Credit Risk

		December 31,
		2011				2010
Stock options and awards under our plans:
Stock options granted and outstanding			7,817				8,353
Unvested RSUs			1,935				499
Reserved for future grant			342				41
Employee Stock Purchase Plan			1,591				1,102
Total			11,685				9,995

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