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Fair Value Measurements - Additional Information (Detail) - USD ($) | Sep. 30, 2024 | Dec. 31, 2023
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Level 1 [Member] | Convertible Senior Notes [Member] |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Convertible notes | $ 103,600,000 | $ 140,800,000
Convertible notes, interest rate | 3.50% | 3.50%
Level 2 [Member] | Development Liability [Member] |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Fair value | $ 0 | $ 306,900,000

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