Stockholders' Equity - Employee Stock Purchase Plan (Details) - Employee Stock Purchase Plan - shares	3 Months Ended
Mar. 31, 2021	Jan. 01, 2019
Stock Options
Employee stock purchase plan, percent	85.00%
Number of shares reserved for issuance (in shares)	766,103	277,362
Number of additional shares reserved for issuance, maximum (in shares)		184,908
Number of additional shares reserved for issuance, percentage, maximum		1.00%

Common Stock, Capital Shares Reserved for Future Issuance, Additional Shares Reserved, Maximum

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- Definition

Common Stock, Capital Shares Reserved for Future Issuance, Additional Shares Reserved, Percentage, Maximum

+ References

No definition available.

+ Details

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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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

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

+ Details

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