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Fair Value Measurements (Tables) | 3 Months Ended
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Mar. 31, 2024
Fair Value Disclosures [Abstract] |
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis | The following tables summarize the Company’s assets and liabilities that are measured at fair value on a recurring basis:
|  | Basis of fair value measurement
(in thousands) | March 31, 2024 | Level 1 | Level 2 | Level 3
Assets |  |  |  |
Cash equivalents: |  |  |  |
Money market funds | $ | 276,697 |  | $ | 276,697 |  | $ | — |  | $ | — |
Restricted cash | 9,824 |  | 9,824 |  | — |  | — |
Total assets | $ | 286,521 |  | $ | 286,521 |  | $ | — |  | $ | — |
|  | Basis of fair value measurement
(in thousands) | December 31, 2023 | Level 1 | Level 2 | Level 3
Assets |  |  |  |
Cash equivalents: |  |  |  |
Money market funds | $ | 322,653 |  | $ | 322,653 |  | $ | — |  | $ | — |
Restricted cash | 9,860 |  | 9,860 |  | — |  | — |
Total assets | $ | 332,513 |  | $ | 332,513 |  | $ | — |  | $ | — |
Schedule of Fair Value Disclosure of Asset and Liability Not Measured at Fair Value | The following tables summarize the Company’s financial instruments that are not measured at fair value:
| Book values |  | Fair values
(in thousands) | March 31, 2024 | December 31, 2023 |  | March 31, 2024 | December 31, 2023
Liabilities |  |  |  |  |
Current portion of notes payable | $ | 55 |  | $ | 41 |  |  | $ | 55 |  | $ | 41 |
Notes payable, net of current portion | 1,071 |  | 1,101 |  |  | 1,071 |  | 1,101 |
Total liabilities | $ | 1,126 |  | $ | 1,142 |  |  | $ | 1,126 |  | $ | 1,142 |

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- Definition Tabular disclosure of information about fair value of asset and liability not measured at fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2E + Details
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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 -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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