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Development Liability - Additional Information (Detail) - USD ($) $ in Thousands |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 8 Months Ended |
--- | --- | --- | --- | --- | --- | ---
May 13, 2024 | May 31, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Jan. 31, 2020 | Dec. 31, 2021
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from credit facility |  |  |  |  |  | $ 365,454 |  |  |
Loss on extinguishment of development liability |  |  | $ 1,949 |  |  | 1,949 |  |  |
Interest expense |  |  | 9,359 |  | $ 7,341 | 16,326 | $ 14,869 |  |
Sixth Financing Agreement [Member] |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from credit facility | $ 326,500 | $ 326,500 |  |  |  |  |  |  |
SFJ Agreement [Member] |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from SFJ agreement |  |  |  |  |  |  |  | $ 140,000 |
Payment made under agreement |  |  |  | $ 94,000 |  |  |  |  |
Loss on extinguishment of development liability |  |  |  |  |  | 1,900 |  |  |
Interest expense |  |  | 2,900 |  | $ 6,500 | 8,900 | $ 13,100 |  |
Development liability reacquisition price |  |  | 326,500 |  |  | 326,500 |  |  |
Development liability carrying value |  |  | $ 324,600 |  |  | $ 324,600 |  |  |
SFJ Agreement [Member] | Regulatory Approval Granted US Food and Drug Administration [Member] |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Obligated to pay initial payment |  |  |  |  |  |  |  |  | $ 460,000

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