Stock-Based Compensation and Stockholders' Equity (Tables)

6 Months Ended

Dec. 31, 2013

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 and six months ended December 31, 2013 and 2012 was estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions:

	Three Months Ended December 31,						Six Months Ended December 31,
	2013			2012			2013			2012
Risk-free interest rate	1.53		%	0.81		%	1.53% - 1.54%			0.65% - 0.81%
Expected life	5.50 years			5.11 years			5.49 - 5.50 years			5.03 - 5.11 years
Dividend yield	—		%	—		%	—		%	—		%
Volatility	50.07		%	51.57		%	50.05% - 50.07%			51.29% - 51.57%
Weighted-average fair value	$	6.63		$	4.17		$	6.24		$	4.91

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

The following table shows total stock-based compensation expense included in the condensed consolidated statements of operations for the three and six months ended December 31, 2013 and 2012 (in thousands):

	Three Months Ended December 31,						Six Months Ended December 31,
	2013			2012			2013			2012
Cost of sales	$	245		$	224		$	480		$	464
Research and development	1,709			1,632			3,270			3,262
Sales and marketing	305			389			619			793
General and administrative	529			664			1,008			1,293
Stock-based compensation expense before taxes	2,788			2,909			5,377			5,812
Income tax impact	(381		)	(181		)	(669		)	(409		)
Stock-based compensation expense, net	$	2,407		$	2,728		$	4,708		$	5,403

Schedule of Share-based Compensation, Stock Options Activity

The following table summarizes stock option activity during the six months ended December 31, 2013 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, 2013	12,206,178		$	10.83	6.23	$	22,631
Granted	945,620		13.40
Exercised	(714,375	)	6.70
Forfeited or cancelled	(155,947	)	13.94
Outstanding at December 31, 2013	12,281,476		11.23		6.12	74,943
Options vested and expected to vest at December 31, 2013	12,009,051		11.19		6.05	73,834
Options vested and exercisable at December 31, 2013	8,880,986		$	10.28	5.14	$	62,395

Schedule of Share-based Compensation, Restricted Stock Award Activity

The following table summarizes the Company’s restricted stock award activity for the six months ended December 31, 2013:

	Restricted Stock Awards
	Number of Shares		Weighted Average Grant Date Fair Value Per Share
Nonvested stock at July 1, 2013	179,641		$	10.66
Granted	3,500		14.23
Vested	(179,641	)	10.66
Forfeited	—		—
Nonvested stock at December 31, 2013	3,500		$	14.23