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Investments and Fair Value of Financial Instruments - Gains and Losses of Marketable Investments (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | $ 149,470 | $ 15,744
Gross Unrealized Gains | 1 | 3
Gross Unrealized Losses | (204) | (20)
Allowance for Credit Loss | 0 | 0
Fair Value | 149,267 | 15,727
Commercial paper |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 23,427 |
Gross Unrealized Gains | 0 |
Gross Unrealized Losses | (6) |
Allowance for Credit Loss | 0 |
Fair Value | 23,421 |
Certificate of Deposit |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 1,002 |
Gross Unrealized Gains | 0 |
Gross Unrealized Losses | (1) |
Allowance for Credit Loss | 0 |
Fair Value | 1,001 |
U.S. treasury |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 2,802 | 15,744
Gross Unrealized Gains | 0 | 3
Gross Unrealized Losses | (2) | (20)
Allowance for Credit Loss | 0 | 0
Fair Value | 2,800 | 15,727
Corporate bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 122,239 |
Gross Unrealized Gains | 1 |
Gross Unrealized Losses | (195) |
Allowance for Credit Loss | 0 |
Fair Value | 122,045 |
Non-marketable investment |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 10,000 | 10,000
Gross Unrealized Gains | 2,850 | 2,850
Gross Unrealized Losses | 0 | 0
Allowance for Credit Loss | 0 | 0
Fair Value | 12,850 | 12,850
Marketable And Non-Marketable Investments |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 159,470 | 25,744
Gross Unrealized Gains | 2,851 | 2,853
Gross Unrealized Losses | (204) | (20)
Allowance for Credit Loss | 0 | 0
Fair Value | $ 162,117 | $ 28,577

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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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