The duration of an ESPP offering period.

No definition available.

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- Definition

The price at which the shares are issued to employees based on percentage of either fair value price on date of purchase or date of offer which ever is lower.

+ References

No definition available.

+ Details

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- Definition

The number of new participants rolled over in a new offering under Employee Stock Purchase Plan (ESPP).

+ References

No definition available.

+ Details

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- Definition

Maximum percentage of participants earnings in payroll deductions for Employee Stock Purchase Plan (ESPP).

+ References

No definition available.

+ Details

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- Definition

Represents the percentage of annual increase possible under Employee Stock Purchase Plan (ESPP).

+ References

No definition available.

+ Details

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- Definition

The number of purchase periods for a company's Employee Stock Purchase Plan (ESPP).

+ References

No definition available.

+ Details

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- Definition

Represents the percentage applied to common stock shares outstanding as of the end of the previous fiscal year to calculate the automatic annual increase in shares authorized under share-based plans.

+ References

No definition available.

+ Details

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- Definition

The amount of plan compensation cost recognized during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-Subparagraph (c)
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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.

+ References

No definition available.

+ Details

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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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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- Definition

Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Number of shares of capital stock issued (purchased by employees) in connection with an employee stock ownership plan.

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Stock-Based Compensation - (Details) $ in Millions		1 Months Ended		3 Months Ended
Stock-Based Compensation - (Details) $ in Millions	Feb. 01, 2020 shares	Feb. 29, 2016 shares	Dec. 31, 2015	Mar. 31, 2020 USD ($) employee item shares	May 31, 2019 shares
2015 Equity Incentive Plan
Stock-based compensation
Expiration period			10 years
Shares available for grant				17,261,319
Automatic annual increase in shares authorized, percent of common stock outstanding				3.50%
1997 Stock Option Plan
Stock-based compensation
Options vested and expected to vest				3,515,817
Inducement Plan
Stock-based compensation
Total shares that may be issued					1,800,000
Shares available for grant				1,229,132
2016 Employee Stock Purchase Plan
Stock-based compensation
Shares available for grant		800,000		6,341,661
Share increase (as a percent)		1.00%
Payroll deductions for ESPP participants (as a percent)				15.00%
Percentage on share price issued				85.00%
Offering period duration				6 months
Purchase periods \| item				2
Participates rolled over \| employee				40
Stock issued	566,573
ESPP incremental cost \| $				$ 0.1