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Stock Benefit Plans | 9 Months Ended
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Mar. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Stock Benefit Plans | 12. Stock Benefit Plans Stock Incentive Plans The Company may grant incentive stock options (“ISOs”), nonstatutory stock options (“NQSOs”), restricted stock, restricted stock units (“RSUs”), stock appreciation rights, performance-based stock awards, and other forms of equity compensation, as well as performance cash awards, under its 2010 Equity Incentive Plan (the “2010 Incentive Plan”). The Company may grant NQSOs and RSUs to non-employee directors under the 2010 Non-Employee Directors’ Stock Award Plan (the “Directors’ Plan”). Prior to fiscal year 2016, the Company granted RSUs with a service condition (“service-based RSUs”). In fiscal year 2016, the Company also began granting to employees RSUs with a market condition (“market-based RSUs”) that requires that the Company’s stock price achieve a specified price above the grant date stock price before it can be eligible for service vesting conditions. In fiscal year 2019, the Company began granting to employees RSUs with a performance condition (“performance-based RSUs”) that vest variably subject to the achievement of fiscal year 2019 revenue growth and adjusted EBITDA targets (“performance targets”). The Company evaluates the portion of the awards that are probable to vest quarterly until the performance criteria are met. To date, the Company has issued ISOs, NQSOs, service-based RSUs, market-based RSUs, and performance-based RSUs under its stock incentive plans. As of March 31, 2019, 20,599,689 shares were reserved and 14,795,537 shares were available for issuance under the 2010 Incentive Plan; 4,333,939 shares were reserved and 2,276,487 shares were available for issuance under the Directors’ Plan. Stock-Based Compensation The Company estimates the fair value of stock options at the date of grant using the Black-Scholes option-pricing model. Options are granted with an exercise price equal to the closing price of the Company’s common stock on the date of grant. The weighted-average Black-Scholes model assumptions for the three and nine months ended March 31, 2019 and 2018 were as follows:
|  | Three Months Ended |  |  | Nine Months Ended |
|  | March 31, |  |  | March 31, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Expected term (in years) |  |  | 4.4 |  |  | 4.6 |  |  |  | 4.3 |  |  | 4.6 |
Expected volatility |  |  | 56 | % |  |  | 50 | % |  |  | 55 | % |  |  | 48 | %
Expected dividend yield |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Risk-free interest rate |  |  | 2.5 | % |  |  | 2.4 | % |  |  | 2.7 | % |  |  | 1.9 | %
Grant date fair value |  | $ | 8.23 |  |  | $ | 4.11 |  |  | $ | 7.32 |  |  | $ | 2.04 |
The Company estimates the fair value of market-based RSUs at the date of the grant using the Monte Carlo simulation model. There were no grants of market-based RSUs during the nine months ended March 31, 2019. The weighted-average Monte Carlo simulation model assumptions for the three and nine months ended March 31, 2018 were as follows:
|  | March 31, 2018 |  |
|  | Three Months Ended |  |  | Nine Months Ended |  |
Expected term (in years) |  |  | 4.0 |  |  |  | 4.0 |  |
Expected volatility |  |  | 50 | % |  |  | 49 | % |
Expected dividend yield |  |  | — |  |  |  | — |  |
Risk-free interest rate |  |  | 2.4 | % |  |  | 2.2 | % |
Grant date fair value |  | $ | 8.03 |  |  | $ | 6.69 |  |
The Company estimates the fair value of service-based RSUs and performance-based RSUs based on the closing price of the Company’s common stock on the grant date. As some of the components that comprise the performance targets have not been fully established, a grant date as defined by ASC 718 has not been determined. The Company will re-measure the compensation expense associated with the performance-based RSUs at each reporting date based on the closing price of the Company’s common stock at each reporting date until the grant date has been established. Compensation expense is amortized net of estimated forfeitures on a straight-line basis over the requisite service period of the stock-based compensation awards.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -URI http://asc.fasb.org/subtopic&trid=2208855 + Details
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