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Fair Value Measurement | 12 Months Ended
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Dec. 31, 2024
Fair Value Disclosures [Abstract] |
Fair Value Measurement | Fair Value Measurement Assets measured at fair value on a recurring basis consist of the following as of December 31, 2023 (in thousands):
|  |  | Fair Value Measurements at Reporting Date Using
| December 31, 2023 |  | Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Assets: |  |  |  |  |  |  |
Money market funds | $ | 92,231 |  |  | $ | 92,231 |  |  | $ | — |  |  | $ | — |
U.S. treasury bills | 5,000 |  |  | 5,000 |  |  | — |  |  | — |
Available-for-sale securities: |  |  |  |  |  |  |
Tax-exempt municipal securities | 9,913 |  |  | — |  |  | 9,913 |  |  | — |
Corporate debt securities | 3,123 |  |  | — |  |  | 3,123 |  |  | — |
Total assets at fair value on a recurring basis | $ | 110,267 |  |  | $ | 97,231 |  |  | $ | 13,036 |  |  | $ | — |
Assets measured at fair value on a recurring basis consist of the following as of December 31, 2024 (in thousands):
|  |  | Fair Value Measurements at Reporting Date Using
| December 31, 2024 |  | Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Assets: |  |  |  |  |  |  |
Money market funds | $ | 92,416 |  |  | $ | 92,416 |  |  | $ | — |  |  | $ | — |
Available-for-sale securities: |  |  |  |  |  |  |
Corporate debt securities | 499 |  |  | — |  | 499 |  |  | — |
Total assets at fair value on a recurring basis | $ | 92,915 |  |  | $ | 92,416 |  |  | $ | 499 |  |  | $ | — |
The Company measures the above items on a recurring basis at fair value as follows: •Money market funds and U.S. treasury bills — Classified in Level 1 is excess cash the Company holds in money market funds and U.S. treasury bills with original maturities of three months or less, which are included in cash and cash equivalents in the accompanying consolidated balance sheets. The Company’s cash and cash equivalents at December 31, 2023 and 2024 approximate fair value and are not disclosed in the above tables because of the short-term nature of the financial instruments. •Available-for-sale securities – Classified in Level 2 and valued using readily available pricing sources for comparable instruments utilizing observable inputs from active markets. The Company does not hold securities in inactive markets. The Company records any net unrealized gains and losses for changes in fair value as a component of accumulated other comprehensive income (loss) in stockholders’ equity. The Company’s held-to-maturity marketable securities, which consist of term deposits, U.S. treasury securities, and corporate debt securities, are not included in the tables above as they are carried at amortized cost and not measured at fair value on a recurring basis. The estimated fair value of the Company’s held-to-maturity marketable securities at December 31, 2023 and 2024 was $27.2 million and $61.4 million, respectively. These securities are valued using readily available pricing sources for comparable instruments utilizing observable inputs from active markets and are classified in Level 2 of the fair value hierarchy. The Company did not change its valuation techniques associated with recurring fair value measurements from prior periods and did not transfer assets or liabilities between levels of the fair value hierarchy during the years ended December 31, 2023 or 2024.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 107 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-107 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 5: 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 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 940 -SubTopic 820 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478119/940-820-50-1 + Details
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