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Fair Value of Financial Instruments (Tables) | 6 Months Ended
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Jun. 30, 2022
Fair Value Disclosures [Abstract] |
Schedule of Fair Value of Company's Financial Assets |
| June 30, 2022 |
| Level 1 |  | Level 2 |  | Level 3 |
Money market fund (cash equivalent) | $ | 153,349 |  | $ | — |  | $ | — |
Money market fund (long-term restricted cash) |  | 2,501 |  | — |  | — |
Marketable securities: |  |  |  |  |  |
Commercial paper | — |  |  | 73,891 |  | — |
Corporate debt | — |  |  | 21,728 |  | — |
U.S. government agency | — |  |  | 46,827 |  | — |
Total assets measured at fair value | $ | 155,850 |  | $ | 142,446 |  | $ | — |
| December 31, 2021 |
| Level 1 |  | Level 2 |  | Level 3 |
Money market fund (cash equivalent) | $ | 26,472 |  | $ | — |  | $ | — |
Money market fund (long-term restricted cash) |  | 199 |  | — |  | — |
Marketable securities:(1) |  |  |  |  |  |
Commercial paper | — |  |  | 43,969 |  | — |
Corporate debt | — |  |  | 17,072 |  | — |
U.S. government agency | — |  |  | 5,053 |  | — |
Asset-backed securities | — |  |  | 7,690 |  | — |
Total assets measured at fair value | $ | 26,671 |  | $ | 73,784 |  | $ | — |
(1) These items have been reclassified to conform to current period presentation.

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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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