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Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2021
Fair Value Disclosures [Abstract] |
Summary of Financial Assets Measured at Fair Value on Recurring Basis | The following table presents the Company’s financial assets measured at fair value on a recurring basis by level within the fair value hierarchy as of December 31, 2021 (in thousands):
|  |  |  | As of December 31, 2021 |
|  | Valuation |  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  |  |  |
|  | Hierarchy |  | Cost |  |  | Gains |  |  | Losses |  |  | Fair Value |
Money market funds |  | Level 1 |  | $ | 21,477 |  |  | $ | — |  |  | $ | — |  |  | $ | 21,477 |
Commercial paper |  | Level 2 |  |  | 59,647 |  |  |  | — |  |  |  | (10 | ) |  |  | 59,637 |
U.S. government bonds |  | Level 2 |  |  | 21,662 |  |  |  | — |  |  |  | (42 | ) |  |  | 21,620 |
Corporate debt securities |  | Level 2 |  |  | 8,776 |  |  |  | 1 |  |  |  | (1 | ) |  |  | 8,776 |
Agency bonds |  | Level 2 |  |  | 7,747 |  |  |  | 1 |  |  |  | (7 | ) |  |  | 7,741 |
Municipal bonds |  | Level 2 |  |  | 4,251 |  |  |  | — |  |  |  | (4 | ) |  |  | 4,247 |
Non-U.S. debt securities |  | Level 2 |  |  | 2,506 |  |  |  | — |  |  |  | (1 | ) |  |  | 2,505 |
Total cash equivalents and available-for-sale securities |  |  |  | $ | 126,066 |  |  | $ | 2 |  |  | $ | (65 | ) |  | $ | 126,003 |
Classified as: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 27,715 |
Short-term available-for-sale securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 98,288 |
Total cash equivalents and available-for-sale securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 126,003 |
The following table presents the Company’s financial assets measured at fair value on a recurring basis by level within the fair value hierarchy as of December 31, 2020 (in thousands):
|  |  |  | As of December 31, 2020 |
|  | Valuation |  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  |  |  |
|  | Hierarchy |  | Cost |  |  | Gains |  |  | Losses |  |  | Fair Value |
Money market funds |  | Level 1 |  | $ | 46,134 |  |  | $ | — |  |  | $ | — |  |  | $ | 46,134 |
Commercial paper |  | Level 2 |  |  | 76,605 |  |  |  | — |  |  |  | (2 | ) |  |  | 76,603 |
Agency bonds |  | Level 2 |  |  | 29,654 |  |  |  | 15 |  |  |  | — |  |  |  | 29,669 |
Corporate debt securities |  | Level 2 |  |  | 11,890 |  |  |  | — |  |  |  | (6 | ) |  |  | 11,884 |
U.S. government bonds |  | Level 2 |  |  | 7,093 |  |  |  | — |  |  |  | — |  |  |  | 7,093 |
Municipal bonds |  | Level 2 |  |  | 5,592 |  |  |  | 2 |  |  |  | (1 | ) |  |  | 5,593 |
U.S. treasury bills |  | Level 2 |  |  | 4,680 |  |  |  | — |  |  |  | — |  |  |  | 4,680 |
Agency discount securities |  | Level 2 |  |  | 200 |  |  |  | — |  |  |  | — |  |  |  | 200 |
Total cash equivalents and available-for-sale securities |  |  |  | $ | 181,848 |  |  | $ | 17 |  |  | $ | (9 | ) |  | $ | 181,856 |
Classified as: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 75,410 |
Short-term available-for-sale securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 106,446 |
Total cash equivalents and available-for-sale securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 181,856 |
Schedule of Contractual Maturities of Cash Equivalents and Available-for-Sale Securities | The following table summarizes the Company’s cash equivalents and available-for-sale securities by contractual maturity as of December 31, 2021 (in thousands):
|  | As of December 31, 2021 |
Within one year |  | $ | 120,726 |
After one year through two years |  |  | 5,277 |
Total cash equivalents and available-for-sale securities |  | $ | 126,003 |
The following table summarizes the Company’s cash equivalents and available-for-sale securities by contractual maturity as of December 31, 2020 (in thousands):
|  | As of December 31, 2020 |
Within one year |  | $ | 160,304 |
After one year through two years |  |  | 21,552 |
Total cash equivalents and available-for-sale securities |  | $ | 181,856 |

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, 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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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