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

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901

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-Publisher FASB
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-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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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.

+ Details

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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

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

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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.

+ Details

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- Definition

Weighted average grant-date fair value of options vested.

+ References

No definition available.

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Stock-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended		3 Months Ended
	Jan. 01, 2022	Jan. 01, 2021	Oct. 31, 2021	Aug. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Oct. 21, 2021	May 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSUs granted (includes PSUs)					1,555,000
Expense related to options granted					$ 4,350	$ 3,043
Number of shares of common stock available for grant							560,000
Weighted-Average Exercise Price, Options exercised					$ 9.29
2017 and 2018 Stock Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares of common stock available for grant					2,641,835
Number of shares reserved for issuance					4,234,328
Weighted-Average Exercise Price, Options exercised					$ 15.03
2014 Stock Incentive Plan Member
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares reserved for issuance					185,396
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					13,418
Number of shares reserved for issuance					1,171,193
Weighted-Average Exercise Price, Options exercised					$ 11.89
2018 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of additional shares reserved for issuance	922,144	524,775
Number of shares available for sale under employee stock purchase plan
Inducement Grant
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares reserved for issuance					486,303
Weighted-Average Exercise Price, Options exercised					$ 14.52
Performance Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares of common stock available for grant								6,410
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSUs granted (includes PSUs)			560,000
Expense related to options granted					$ 1,100
Weighted-Average Grant Date Fair Value,Vested					$ 8.02
Number of shares of common stock available for grant				210,750
Weighted-Average Exercise Price, Options exercised				$ 7.12