Business combination contingent consideration arrangements of shares issued.

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- Definition

Common stock trading period.

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- Definition

Section 382 Rights Agreement, Acquiring Person, Trigger, Percentage of Common Shares Outstanding

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- Definition

Share Based Compensation, Employee Stock Purchase Plans, Share Outstanding

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

Aggregate number of common shares reserved for future issuance.

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- Definition

The per share price that the individual must pay to acquire shares under the deferred compensation arrangement.

+ References

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

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- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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- Definition

The price per share at which the preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity is redeemed or may be called at. The redemption features of this preferred stock are solely within the control of the issuer.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Stockholders' Equity - Additional Information (Details) $ / shares in Units, $ in Thousands		3 Months Ended			6 Months Ended		9 Months Ended
	Nov. 06, 2018 $ / shares shares	Mar. 31, 2019 USD ($) $ / shares shares	Mar. 31, 2018 USD ($)	Dec. 31, 2016 shares	Mar. 31, 2019 USD ($) $ / shares shares	Mar. 31, 2018 USD ($)	Sep. 30, 2015 shares	Feb. 28, 2019	Oct. 23, 2018 $ / right $ / shares shares	Sep. 30, 2018 USD ($) $ / shares shares	Mar. 07, 2018 shares	Mar. 10, 2017 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense \| $		$ 21,700			$ 21,700
Weighted average period for unrecognized compensation expense expected to be recognized (in years)					2 years 8 months 12 days
Purchase of common stock (in shares)		2,390,119			2,390,119					2,806,364
Recognized compensation expense \| $		$ 2,353	$ 2,058		$ 5,023	$ 3,947
Total intrinsic value of options exercised \| $					$ 4,800	500
Weighted average fair value of options granted (in dollars per share) \| $ / shares					$ 9.50
Aggregate intrinsic value of options outstanding \| $		$ 15,600			$ 15,600					$ 8,700
Preferred stock, par value (in dollars per share) \| $ / shares		$ 0.001			$ 0.001				$ 0.001	$ 0.001
Percentage of common stock outstanding for acquiring person under right agreement								4.90%
Earnout shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized compensation expense \| $					$ 0	400
Earnout shares \| IDchecker
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Business combination, paid earnout shares issued (in shares)				81,182			137,306
Common stock trading period (in days)					10 days
Series B Preferred Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of preferred share purchase right for each share of common stock (in shares)									1
Preferred stock, share conversion ratio									0.001
Preferred stock, purchase price per right (in dollars per right) \| $ / right									35.00
Preferred stock, redemption price per share (in dollars per share) \| $ / shares									$ 0.0001
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average period for unrecognized compensation expense expected to be recognized (in years)					2 years 8 months 12 days
RSUs outstanding (in shares)		2,681,801			2,681,801					2,580,176
Recognized compensation expense \| $		$ 1,600	1,400		$ 3,700	2,600
Unrecognized compensation expense related to nonvested awards \| $		16,400			$ 16,400
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average period for unrecognized compensation expense expected to be recognized (in years)					3 years 3 months 18 days
Recognized compensation expense \| $		200	300		$ 400	600
Unrecognized compensation expense related to outstanding stock options \| $		2,100			2,100
Performance RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense \| $		1,100			$ 1,100
Weighted average period for unrecognized compensation expense expected to be recognized (in years)					1 year 4 months 24 days
Performance Options \| Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense \| $		2,100			$ 2,100
Weighted average period for unrecognized compensation expense expected to be recognized (in years)					2 years 7 months 6 days
Number of common stock reserved for future grants (in shares)	800,000
Recognized compensation expense \| $		$ 200			$ 300
Exercise price per share (in dollars per share) \| $ / shares	$ 9.50
Vesting period of awards	3 years
2012 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance (in shares)												9,500,000
Purchase of common stock (in shares)		1,676,413			1,676,413
Number of common stock reserved for future grants (in shares)		676,415			676,415
2012 Plan \| RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs outstanding (in shares)		2,220,193			2,220,193
2012 Plan \| Performance RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs outstanding (in shares)		1,728,569			1,728,569
Recognized compensation expense \| $		$ 300	$ 400		$ 500	$ 700
Prior Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase of common stock (in shares)		541,527			541,527
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance (in shares)		871,658			871,658						1,000,000
Shares outstanding under ESPP (in shares)		128,342			128,342
Recognized compensation expense \| $		$ 100			$ 200
Director Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance (in shares)												1,500,000
Number of common stock reserved for future grants (in shares)		391,701			391,701
Director Plan \| RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase of common stock (in shares)		366,870			366,870
Minimum \| ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Discount rate from market price, offering date					15.00%
Discount rate from market price, purchase date					0.15