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Financial Instruments and Fair Value - Schedule of Cash, Cash Equivalents, and Marketable Securities by Significant Investment Category (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024 | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Amortized Cost | $ 261,103 | $ 270,050 |  |
Unrealized Gains | 35 | 54 |  |
Fair Value | 261,138 | 270,104 |  |
Cash and Cash Equivalents | 454,640 | 515,627 | $ 363,422 | $ 412,618
Marketable Securities | 73,442 | 47,896 |  |
Cash |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Cash and Cash Equivalents | 238,795 | 256,638 |  |
Marketable Securities | 0 | 0 |  |
Fair Value, Inputs, Level 1 |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Amortized Cost | 261,103 | 270,050 |  |
Unrealized Gains | 35 | 54 |  |
Fair Value | 261,138 | 270,104 |  |
Cash and Cash Equivalents | 215,845 | 258,989 |  |
Marketable Securities | 73,442 | 47,896 |  |
Fair Value, Inputs, Level 1 | Money market funds |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Cash and Cash Equivalents | 28,149 | 36,781 |  |
Marketable Securities | 0 | 0 |  |
Fair Value, Inputs, Level 1 | U.S. Treasury securities |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Amortized Cost | 261,103 | 270,050 |  |
Unrealized Gains | 35 | 54 |  |
Fair Value | 261,138 | 270,104 |  |
Cash and Cash Equivalents | 187,696 | 222,208 |  |
Marketable Securities | $ 73,442 | $ 47,896 |  |

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on 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/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
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- Definition Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483467/210-10-45-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-4 + Details
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