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Cash Equivalents and Marketable Securities - Narrative (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 USD ($) bank | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) bank | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Cash Equivalents And Marketable Securities [Line Items] |  |  |  |  |
Number of domestic banking institutions (in banks) | bank | 2 |  | 2 |  |
US Government Agencies Debt Securities |  |  |  |  |
Cash Equivalents And Marketable Securities [Line Items] |  |  |  |  |
Allowance for credit loss | $ 0 |  | $ 0 |  | $ 0
Impairment of marketable securities |  |  | 0 |  | 0
Realized gains or losses on marketable securities | 0 | $ 0 | 0 | $ 0 |
Accrued interest receivable on available-for-sale debt securities | 3,600,000 |  | 3,600,000 |  | $ 3,400,000
U.S. Banking Institution | Maximum |  |  |  |  |
Cash Equivalents And Marketable Securities [Line Items] |  |  |  |  |
Cash, FDIC insured amount (up to) | $ 250,000 |  | $ 250,000 |  |

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