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Fair Value Measurements - Fair Value Hierarchy (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Financial Instruments Measurements |  |  |  |  |
Transfers between Level 1, Level 2 and Level 3 | $ 0 | $ 0 | $ 0 | $ 0 |
Recurring |  |  |  |  |
Summary of assets measured at fair value on a recurring basis |  |  |  |  |
Total | 204,040 |  | 204,040 |  | $ 298,922
Recurring | Level 1 |  |  |  |  |
Summary of assets measured at fair value on a recurring basis |  |  |  |  |
Total | 194,170 |  | 194,170 |  | 198,922
Recurring | Level 2 |  |  |  |  |
Summary of assets measured at fair value on a recurring basis |  |  |  |  |
Total | 9,870 |  | 9,870 |  | 100,000
Recurring | Money market funds |  |  |  |  |
Summary of assets measured at fair value on a recurring basis |  |  |  |  |
Cash and cash equivalents | 47,665 |  | 47,665 |  | 30,610
Recurring | Money market funds | Level 1 |  |  |  |  |
Summary of assets measured at fair value on a recurring basis |  |  |  |  |
Cash and cash equivalents | 47,665 |  | 47,665 |  | 30,610
Recurring | Treasury bills |  |  |  |  |
Summary of assets measured at fair value on a recurring basis |  |  |  |  |
Cash and cash equivalents | 24,934 |  | 24,934 |  |
Short-term investments: | 74,274 |  | 74,274 |  | 39,115
Recurring | Treasury bills | Level 1 |  |  |  |  |
Summary of assets measured at fair value on a recurring basis |  |  |  |  |
Cash and cash equivalents | 24,934 |  | 24,934 |  |
Short-term investments: | 74,274 |  | 74,274 |  | 39,115
Recurring | Treasury notes |  |  |  |  |
Summary of assets measured at fair value on a recurring basis |  |  |  |  |
Short-term investments: | 47,297 |  | 47,297 |  | 129,197
Recurring | Treasury notes | Level 1 |  |  |  |  |
Summary of assets measured at fair value on a recurring basis |  |  |  |  |
Short-term investments: | 47,297 |  | 47,297 |  | 129,197
Recurring | Corporate debt securities |  |  |  |  |
Summary of assets measured at fair value on a recurring basis |  |  |  |  |
Short-term investments: | 9,870 |  | 9,870 |  |
Recurring | Corporate debt securities | Level 2 |  |  |  |  |
Summary of assets measured at fair value on a recurring basis |  |  |  |  |
Short-term investments: | $ 9,870 |  | $ 9,870 |  |
Recurring | Reverse repurchase agreements |  |  |  |  |
Summary of assets measured at fair value on a recurring basis |  |  |  |  |
Short-term investments: |  |  |  |  | 100,000
Recurring | Reverse repurchase agreements | Level 2 |  |  |  |  |
Summary of assets measured at fair value on a recurring basis |  |  |  |  |
Short-term investments: |  |  |  |  | $ 100,000

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -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 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -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 + Details
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