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Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Thousands | Jun. 30, 2026 | Dec. 31, 2025
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Payables and Accruals [Abstract] |  |
Product revenue allowances | $ 11,115 | $ 9,810
Accrued clinical study and trial costs | 20,878 | 18,977
Accrued selling, general, and administrative costs | 6,483 | 6,316
Accrued compensation and related costs | 11,384 | 24,352
Accrued milestone costs | 0 | 10,000
Accrued interest - royalty interest financing | 34,149 | 25,516
Accrued interest - convertible note | 555 | 0
Accrued royalty payable | 8,183 | 7,372
Other | 1,550 | 721
Total accrued expenses and other current liabilities | $ 94,297 | $ 103,064

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