Stock-Based Compensation and Stockholers' Equity (Tables)

3 Months Ended

Sep. 30, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The fair value of stock option grants for the three months endedSeptember 30, 2012 and 2011 was estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions:

	Three Months Ended September 30,
	2012			2011
Risk-free interest rate	0.65		%	1.32		%
Expected life	5.03 years			5.01 years
Dividend yield	—		%	—		%
Volatility	51.29		%	53.72		%
Weighted-average fair value	$	5.55		$	6.43

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

The following table shows total stock-based compensation expense included in the consolidated statements of operations for the three months endedSeptember 30, 2012 and 2011 (in thousands).

	Three Months Ended September 30,
	2012			2011
Cost of sales	$	240		$	208
Research and development	1,630			1,272
Sales and marketing	404			278
General and administrative	629			572
Stock-based compensation expense before taxes	2,903			2,330
Income tax impact	(228		)	(231		)
Stock-based compensation expense, net	$	2,675		$	2,099

Schedule of Share-based Compensation, Stock Options Activity

The following table summarizes stock option activity during the three months endedSeptember 30, 2012 under all stock option plans:

	Number of Shares		Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Term (in Years)	Aggregate Intrinsic Value (in thousands)
Outstanding at July 1, 2012	11,302,228		$	10.36	6.50	$	66,062
Granted	561,780		12.50
Exercised	(98,794	)	3.64
Forfeited or cancelled	(74,386	)	15.96
Outstanding at September 30, 2012	11,690,828		10.49		6.45	34,446
Options vested and expected to vest at September 30, 2012	11,265,255		10.31		6.34	34,418
Options vested and exercisable at September 30, 2012	7,880,282		8.62		5.33	32,648

Schedule of Share-based Compensation, Restricted Stock Award Activity

The following table summarizes the Company’s restricted stock award activity for the three months endedSeptember 30, 2012:

	Restricted Stock Awards
	Number of Shares		Weighted Average Grant Date Fair Value Per Share
Nonvested stock at July 1, 2012	362,782		$	10.72
Granted	—		—
Vested	(179,641	)	10.66
Forfeited	—		—
Nonvested stock at September 30, 2012	183,141		$	10.79