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Fair Value of Financial Instruments - Summary of Financial Instruments Measured at Fair Value on Recurring Basis by Level Within Fair Value Hierarchy (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Available for sale securities, Amortized Cost | $ 312,943 | $ 376,511
Available for sale securities, Unrealized Losses | (8) | (146)
Available for sale securities, Unrealized Gains | 544 | 820
Available for sale securities, Estimated Fair Value | 313,479 | 377,185
Cash Equivalents |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Available for sale securities, Amortized Cost | 59,841 | 27,312
Available for sale securities, Estimated Fair Value | 59,841 | 27,312
Short-Term Investments |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Available for sale securities, Amortized Cost | 221,748 | 239,116
Available for sale securities, Unrealized Losses | (6) | (55)
Available for sale securities, Unrealized Gains | 475 | 420
Available for sale securities, Estimated Fair Value | 222,217 | 239,481
Long-Term Investments |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Available for sale securities, Amortized Cost | 31,354 | 110,083
Available for sale securities, Unrealized Losses | (2) | (91)
Available for sale securities, Unrealized Gains | 69 | 400
Available for sale securities, Estimated Fair Value | 31,421 | 110,392
Level 1 | Money Market Funds | Cash Equivalents |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Available for sale securities, Amortized Cost | 39,437 | 25,617
Available for sale securities, Estimated Fair Value | 39,437 | 25,617
Level 2 | Commercial Paper |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Available for sale securities, Amortized Cost |  | 1,395
Available for sale securities, Estimated Fair Value |  | 1,395
Level 2 | Commercial Paper | Cash Equivalents |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Available for sale securities, Amortized Cost | 20,404 | 1,395
Available for sale securities, Estimated Fair Value | 20,404 | 1,395
Level 2 | Commercial Paper | Short-Term Investments |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Available for sale securities, Amortized Cost | 18,426 | 22,820
Available for sale securities, Estimated Fair Value | 18,426 | 22,820
Level 2 | Corporate Debt Securities | Short-Term Investments |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Available for sale securities, Amortized Cost | 128,768 | 124,283
Available for sale securities, Unrealized Losses | (4) | (38)
Available for sale securities, Unrealized Gains | 366 | 303
Available for sale securities, Estimated Fair Value | 129,130 | 124,548
Level 2 | Corporate Debt Securities | Long-Term Investments |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Available for sale securities, Amortized Cost | 13,815 | 85,992
Available for sale securities, Unrealized Losses |  | (62)
Available for sale securities, Unrealized Gains | 42 | 332
Available for sale securities, Estimated Fair Value | 13,857 | 86,262
Level 2 | U.S. Government Securities | Cash Equivalents |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Available for sale securities, Amortized Cost |  | 300
Available for sale securities, Estimated Fair Value |  | 300
Level 2 | U.S. Government Securities | Short-Term Investments |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Available for sale securities, Amortized Cost | 74,554 | 92,013
Available for sale securities, Unrealized Losses | (2) | (17)
Available for sale securities, Unrealized Gains | 109 | 117
Available for sale securities, Estimated Fair Value | 74,661 | 92,113
Level 2 | U.S. Government Securities | Long-Term Investments |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Available for sale securities, Amortized Cost | 17,539 | 24,091
Available for sale securities, Unrealized Losses | (2) | (29)
Available for sale securities, Unrealized Gains | 27 | 68
Available for sale securities, Estimated Fair Value | $ 17,564 | $ 24,130

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