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Equity Incentive Plans - Summary of Changes in Shares Available for Grant (Details) - 2019 Equity Incentive Plan	6 Months Ended
	Jun. 30, 2021 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares Available for Grant, Outstanding, Beginning Balance	18,617,001
Shares Available for Grant, 2019 Plan reserve increase	6,882,344
Shares Available for Grant, Options and restricted stock units granted	(2,680,086)
Shares Available for Grant, Options and restricted stock units forfeited, cancelled or expired	530,175
Shares Available for Grant, Outstanding, Ending Balance	23,349,434

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- Definition

Share based compensation arrangement by share based payment award increase reserve shares available for grant,

+ References

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- Definition

Share based compensation arrangement by share based payment awards forfeited, canceled or expired.

+ References

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- Definition

Share based compensation arrangement by share based payment awards granted.

+ 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.

+ References

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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