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Fair Value Measurements (Tables) | 3 Months Ended
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Mar. 31, 2023
Fair Value Disclosures [Abstract] |
Summary of Financial Assets Measured at Fair Value on Recurring Basis | The following tables summarize the Company’s financial assets measured at fair value on a recurring basis and their respective input levels based on the fair value hierarchy (in thousands):
|  |  |  |  | Fair value measurements as of March 31, 2023 using |
|  |  |  |  | Quoted prices in |  |  | Significant |  |  | Significant |
|  |  |  |  | active markets |  |  | other |  |  | unobservable |
|  | March 31, |  |  | for identical |  |  | observable |  |  | inputs |
|  | 2023 |  |  | assets (level 1) |  |  | inputs (level 2) |  |  | (level 3) |
Assets: |  |  |  |  |  |  |  |  |  |  |  |
Money market funds(1) |  | $ | 260,436 |  |  | $ | 260,436 |  |  | $ | — |  |  | $ | — |
US treasury securities(1) |  |  | 1,999 |  |  |  | 1,999 |  |  |  | — |  |  |  | — |
US treasury securities(2) |  |  | 88,892 |  |  |  | 88,892 |  |  |  | — |  |  |  | — |
US government agency securities(2) |  |  | 9,538 |  |  |  | — |  |  |  | 9,538 |  |  |  | — |
Corporate debt securities(2) |  |  | 3,306 |  |  |  | — |  |  |  | 3,306 |  |  |  | — |
Commercial paper(2) |  |  | 14,603 |  |  |  | — |  |  |  | 14,603 |  |  |  | — |
Supranational debt securities(2) |  |  | 646 |  |  |  | — |  |  |  | 646 |  |  |  | — |
Total fair value of assets |  | $ | 379,420 |  |  | $ | 351,327 |  |  | $ | 28,093 |  |  | $ | — |
(1) Included as cash and cash equivalents on the condensed consolidated balance sheets. (2) Included as short-term marketable securities on the condensed consolidated balance sheets.
|  |  |  |  | Fair value measurements as of December 31, 2022 using |
|  |  |  |  | Quoted prices in |  |  | Significant |  |  | Significant |
|  |  |  |  | active markets |  |  | other |  |  | unobservable |
|  | December 31, |  |  | for identical |  |  | observable |  |  | inputs |
|  | 2022 |  |  | assets (level 1) |  |  | inputs (level 2) |  |  | (level 3) |
Assets: |  |  |  |  |  |  |  |  |  |  |  |
Money market funds(1) |  | $ | 255,080 |  |  | $ | 255,080 |  |  | $ | — |  |  | $ | — |
US treasury securities(2) |  |  | 127,476 |  |  |  | 127,476 |  |  |  | — |  |  |  | — |
US government agency securities(2) |  |  | 1,468 |  |  |  | — |  |  |  | 1,468 |  |  |  |
Corporate debt securities(2) |  |  | 3,301 |  |  |  | — |  |  |  | 3,301 |  |  |  | — |
Commercial paper(2) |  |  | 18,519 |  |  |  | — |  |  |  | 18,519 |  |  |  | — |
Supranational debt securities(2) |  |  | 639 |  |  |  | — |  |  |  | 639 |  |  |  | — |
Total fair value of assets |  | $ | 406,483 |  |  | $ | 382,556 |  |  | $ | 23,927 |  |  | $ | — |
(1) Included as cash and cash equivalents on the condensed consolidated balance sheets. (2) Included as short-term marketable securities on the condensed consolidated balance sheets.

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + 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 (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: 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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