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Fair Value Measurements - Schedule of Assets Measured at Fair Value on Recurring Basis (Details) - Fair Value Measurements Recurring - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | $ 208,938 | $ 228,223
U.S. Treasury Securities |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 143,040 | 154,018
Certificates of deposit |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 1,932 | 2,400
U.S. agency bonds |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 4,976 | 4,965
Money Market Funds |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value | [1] | 58,990 | 66,840
Level 1 |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 203,962 | 223,258
Level 1 | U.S. Treasury Securities |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 143,040 | 154,018
Level 1 | Certificates of deposit |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 1,932 | 2,400
Level 1 | U.S. agency bonds |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 0 | 0
Level 1 | Money Market Funds |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value | [1] | 58,990 | 66,840
Level 2 |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 4,976 | 4,965
Level 2 | U.S. Treasury Securities |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 0 | 0
Level 2 | Certificates of deposit |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 0 | 0
Level 2 | U.S. agency bonds |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 4,976 | 4,965
Level 2 | Money Market Funds |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value | [1] | 0 | 0
Level 3 |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 0 | 0
Level 3 | U.S. Treasury Securities |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 0 | 0
Level 3 | Certificates of deposit |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 0 | 0
Level 3 | U.S. agency bonds |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 0 | 0
Level 3 | Money Market Funds |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value | [1] | 0 | 0
Fair Value |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 208,938 | 228,223
Fair Value | U.S. Treasury Securities |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 143,040 | 154,018
Fair Value | Certificates of deposit |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 1,932 | 2,400
Fair Value | U.S. agency bonds |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value |  | 4,976 | 4,965
Fair Value | Money Market Funds |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Assets, Fair Value | [1] | $ 58,990 | $ 66,840
[1] | (1) Included in cash and cash equivalents in accompanying balance sheets.

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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