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Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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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 | $ 140.8 | $ 143.9
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 | $ 306.9 | $ 315.8

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