Allowed annual percentage increase in shares authorized as percentage of outstanding shares of common stock.

No definition available.

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- Definition

Increase in common stock available for issuance.

+ References

No definition available.

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- Definition

Maximum shares allowed to be issued under ESPP.

+ References

No definition available.

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- Definition

Share based compensation arrangement by share based payment award purchase price of common stock through payroll deductions percentage.

+ References

No definition available.

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- Definition

Share based compensation expense related to ESPP.

+ References

No definition available.

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

+ References

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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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No definition available.

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

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- Definition

Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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Share-Based Compensation - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended
	Mar. 12, 2019	Mar. 31, 2021	Jan. 01, 2021	Dec. 31, 2020	Mar. 31, 2020	Mar. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options outstanding		9,803,349		10,544,270
Share Based Compensation Expense Related To E S P P					$ 0.1	$ 0.1
Intrinsic value of Stock options exercised		$ 6.8			$ 2.1
Unrecognized compensation cost		$ 27.1
Weighted-average period for recognition of compensation cost		2 years
2006 and 2015 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options outstanding		4,307,433
Remaining shares available to be granted		0
2019 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options outstanding		5,495,916
Increase in common stock available for issuance	4,750,000	4,153,915
Number of shares available to be issued		4,105,617
Allowed annual percentage increase in shares authorized as percentage of outstanding shares of common stock	4.00%
2019 ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Remaining shares available to be granted	525,000	1,346,454
Increase in common stock available for issuance			1,038,478
Allowed annual percentage increase in shares authorized as percentage of outstanding shares of common stock	1.00%
Maximum shares allowed to be issued under ESPP	5,250,000
Purchase of common stock through payroll deductions expressed in percentage of fair market value	85.00%
Shares issued		217,024