Stock-Based Compensation - Shares reserved for future issuance (Details) shares in Thousands	Dec. 31, 2022 shares
Stock-Based Compensation
Common stock shares reserved for future issuance	3,665
2009 Plan
Stock-Based Compensation
Common stock shares reserved for future issuance	2,520
2009 ESPP
Stock-Based Compensation
Common stock shares reserved for future issuance	1,145

Aggregate number of common shares reserved for future issuance.

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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant