Number of shares available for sale under employee stock purchase plan.

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- Definition

Probability of achieving milestone.

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- Definition

Share based compensation arrangement by share based payment award number of shares available for grant, shares granted.

+ References

No definition available.

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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.

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- Definition

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

+ References

No definition available.

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- Definition

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

+ 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
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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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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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

+ References

No definition available.

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Stock-Based Compensation - Additional Information (Details) - $ / shares			6 Months Ended
	Jan. 01, 2021	Jan. 01, 2020	Jun. 30, 2021	May 31, 2021	Dec. 31, 2020	Jun. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares Available for Grant, Options granted			(1,911,472)
Number of shares of common stock available for grant			2,860,244		1,739,621	0
Number of shares reserved for issuance			362,503
Weighted-Average Exercise Price, Options exercised			$ 2.91
2017 and 2018 Stock Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Probability of Achieving Milestone			10000.00%
Number of shares of common stock available for grant			2,529,290
Number of shares reserved for issuance			2,506,532
Weighted-Average Exercise Price, Options exercised			$ 15.40
2014 Stock Incentive Plan Member
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares reserved for issuance			22,989
Weighted-Average Exercise Price, Options exercised			$ 1.61
2015 Stock Incentive Plan Member
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares of common stock available for grant			324,543
Number of shares reserved for issuance			1,878,756
Weighted-Average Exercise Price, Options exercised			$ 8.71
2018 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of additional shares reserved for issuance	209,135	131,432	524,775
Number of shares available for sale under employee stock purchase plan			0
Inducement Grant
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-Average Exercise Price, Options exercised			$ 14.33
Performance Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares Available for Grant, Options granted			(6,410)
Number of shares of common stock available for grant				6,410