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Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2021
Fair Value Disclosures [Abstract] |
Schedule of Cash Equivalents and Marketable Securities Classified as Available-for-Sale Securities Measured at Fair Value on Recurring Basis | Cash equivalents and marketable securities, all of which are classified as available-for-sale securities and measured at fair value on a recurring basis, consisted of the following (in thousands):
|  |  |  | As of December 31, 2021 |
|  | Fair Value Hierarchy Level |  | Amortized Cost |  |  | Unrealized Gains |  |  | Unrealized Losses |  |  | Fair Value |
Financial assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds— classified as cash equivalents |  | Level 1 |  | $ | 22,658 |  |  | $ | — |  |  | $ | — |  |  | $ | 22,658 |
Corporate debt |  | Level 2 |  |  | 52,704 |  |  |  | — |  |  |  | (139 | ) |  |  | 52,565 |
Asset-backed securities |  | Level 2 |  |  | 23,882 |  |  |  | — |  |  |  | (21 | ) |  |  | 23,861 |
Commercial paper |  | Level 2 |  |  | 59,532 |  |  |  | — |  |  |  | — |  |  |  | 59,532 |
U.S. government agency securities |  | Level 2 |  |  | 29,744 |  |  |  | — |  |  |  | (75 | ) |  |  | 29,669 |
Total |  |  |  | $ | 188,520 |  |  | $ | — |  |  | $ | (235 | ) |  | $ | 188,285 |
|  |  |  | As of December 31, 2020 |
|  | Fair Value Hierarchy Level |  | Amortized Cost |  |  | Unrealized Gains |  |  | Unrealized Losses |  |  | Fair Value |
Financial assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds— classified as cash equivalents |  | Level 1 |  | $ | 21,333 |  |  | $ | — |  |  | $ | — |  |  | $ | 21,333 |
Corporate debt |  | Level 2 |  |  | 32,164 |  |  |  | 48 |  |  |  | — |  |  |  | 32,212 |
Asset-backed securities |  | Level 2 |  |  | 12,367 |  |  |  | 2 |  |  |  | (1 | ) |  |  | 12,368 |
Commercial paper |  | Level 2 |  |  | 28,962 |  |  |  | — |  |  |  | — |  |  |  | 28,962 |
U.S. government agency securities |  | Level 2 |  |  | 13,047 |  |  |  | 3 |  |  |  | — |  |  |  | 13,050 |
Total |  |  |  | $ | 107,873 |  |  | $ | 53 |  |  | $ | (1 | ) |  | $ | 107,925 |
Schedule of Remaining Contractual Maturities of Marketable Securities | The following table presents the remaining contractual maturities of the Company’s marketable securities as of December 31, 2021 (in thousands):
|  | December 31, 2021 |
Due in less than one year |  | $ | 132,804 |
Due in more than one year |  |  | 55,481 |
Total |  | $ | 188,285 |

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- Definition Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 + Details
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