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Stock-Based Compensation and Stockholders' Equity (Tables)

12 Months Ended

Jun. 30, 2014

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 years ended June 30, 2014, 2013 and 2012 was estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions:

	Years Ended June 30,
	2014				2013				2012
Risk-free interest rate	1.53% - 1.90%				0.65% - 0.90%				0.83% - 1.32%
Expected life	5.49 - 5.58 years				5.03 - 5.15 years				5.01 - 5.04 years
Dividend yield	—		%		—		%		—		%
Volatility	43.48% - 50.07%				51.27% - 51.76%				45.62% - 53.72%
Weighted-average fair value	$	7.23			$	4.53			$	7.15

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 years ended June 30, 2014, 2013 and 2012 (in thousands):

	Years Ended June 30,
	2014				2013				2012
Cost of sales	$	941			$	953			$	783
Research and development	6,783				6,527				5,542
Sales and marketing	1,260				1,541				1,469
General and administrative	2,078				2,340				2,458
Stock-based compensation expense before taxes	11,062				11,361				10,252
Income tax impact	(2,426		)		(548		)		(1,582		)
Stock-based compensation expense, net	$	8,636			$	10,813			$	8,670

Schedule of Share-based Compensation, Stock Options, Activity

The following table summarizes stock option activity during the years ended June 30, 2014, 2013 and 2012 under all stock option plans:

		Options Outstanding			Weighted Average Exercise Price per Share				Weighted Average Remaining Contractual Term (in Years)		Aggregate Intrinsic Value (in thousands)
Balance as of June 30, 2011 (6,617,414 shares exercisable at weighted average exercise price of $7.18 per share)		10,480,785			$	8.86
Granted (weighted average fair value of $7.15)		2,381,700			15.89
Exercised		(1,211,070	)		7.06
Forfeited		(349,187	)		14.60
Balance as of June 30, 2012 (7,410,152 shares exercisable at weighted average exercise price of $8.25 per share)		11,302,228			10.36
Granted (weighted average fair value of $4.53)		1,952,270			11.83
Exercised		(612,034	)		3.01
Forfeited		(436,286	)		14.01
Balance as of June 30, 2013 (8,731,818 shares exercisable at weighted average exercise price of $9.66 per share)		12,206,178			10.83
Granted (weighted average fair value of $7.23)		1,808,006			15.87
Exercised		(2,863,878	)		8.36
Forfeited		(244,704	)		14.25
Balance as of June 30, 2014		10,905,602			$	12.24			6.28		$	142,053
Options vested and expected to vest at June 30, 2014		10,633,458			$	12.16			6.20		$	139,430
Options vested and exercisable at June 30, 2014		7,558,631			$	11.05			5.21		$	107,481

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

Additional information regarding options outstanding as of June 30, 2014, is as follows:

		Options Outstanding									Options Vested and Exercisable
Range of Exercise Prices		Number Outstanding			Weighted- Average Remaining Contractual Term (Years)		Weighted- Average Exercise Price Per Share				Number Exercisable			Weighted- Average Exercise Price Per Share
$2.60 - 6.14		1,373,230			3.37		$	4.87			1,373,230			$	4.87
6.21 - 8.36		1,149,959			4.08		7.97				1,149,959			7.97
8.47 - 10.35		1,355,173			6.76		9.62				761,809			9.55
10.66 - 11.76		1,259,691			6.02		10.92				1,025,009			10.74
11.81 - 13.61		1,313,886			6.73		12.70				1,037,201			12.72
13.67 - 14.23		1,333,831			6.53		13.98				677,016			13.81
15.22 - 17.29		1,369,860			7.54		16.41				839,991			16.31
17.69 - 18.93		1,496,712			8.24		18.58				607,694			18.67
20.70		231,260			8.56		20.70				86,722			20.70
21.86		22,000			9.62		21.86				—			—
$2.60 - $21.86		10,905,602			6.28		$	12.24			7,558,631			$	11.05

Nonvested Restricted Stock Shares Activity

The following table summarizes the Company’s restricted stock award activity for the year ended June 30, 2014, 2013 and 2012:

	Restricted Stock Awards
	Number of Shares			Weighted Average Grant Date Fair Value Per Share
Nonvested stock at June 30, 2011	538,923			$	10.66
Granted	3,500			17.29
Vested	(179,641	)		10.66
Forfeited	—			—
Nonvested stock at June 30, 2012	362,782			10.72
Granted	—			—
Vested	(183,141	)		10.79
Forfeited	—			—
Nonvested stock at June 30, 2013	179,641			10.66
Granted	3,500			14.23
Vested	(183,141	)		10.73
Forfeited	—			—
Nonvested stock at June 30, 2014	—			$	—

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