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Liabilities Related to the Sales of Future Royalties - Schedule of Liability Related to Potential Future Royalties (Detail) - USD ($) $ in Thousands | 12 Months Ended | 24 Months Ended | 130 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2022 | Dec. 31, 2022
Liability Related To Sale Of Future Royalties [Roll Forward] |  |  |  |  |
Liabilities related to the sales of future royalties—beginning balance | $ 198,344 |  |  |  | $ 0
Royalty monetization proceeds | 0 |  |  |  | 274,000
Non-cash royalty revenue | (69,794) | $ (77,746) | $ (48,563) |  | (403,245)
Non-cash interest expense | 28,911 | 47,313 | $ 30,267 |  | 273,184
Payments to RPI | 0 |  |  |  | (10,000)
Loss on revaluation of liability related to the sale of future royalties | 0 |  |  |  | 23,522
Liabilities related to the sales of future royalties – ending balance | 157,461 | 198,344 |  | $ 157,461 | 157,461
Less: unamortized transaction costs | (2,083) |  |  | (2,083) | (2,083)
Liabilities related to the sales of future royalties, net | 155,378 | 195,427 |  | 155,378 | 155,378
2012 Purchase and Sale Agreement |  |  |  |  |
Liability Related To Sale Of Future Royalties [Roll Forward] |  |  |  |  |
Liabilities related to the sales of future royalties—beginning balance | 78,282 |  |  |  | 0
Royalty monetization proceeds | 0 |  |  |  | 124,000
Non-cash royalty revenue | (33,865) |  |  |  | (316,523)
Non-cash interest expense | 10,750 |  |  |  | 234,168
Payments to RPI | 0 |  |  |  | (10,000)
Loss on revaluation of liability related to the sale of future royalties | 0 |  |  |  | 23,522
Liabilities related to the sales of future royalties – ending balance | 55,167 | 78,282 |  | 55,167 | 55,167
Less: unamortized transaction costs | 0 |  |  | 0 | 0
Liabilities related to the sales of future royalties, net | 55,167 |  |  | 55,167 | 55,167
2020 Purchase and Sale Agreement |  |  |  |  |
Liability Related To Sale Of Future Royalties [Roll Forward] |  |  |  |  |
Liabilities related to the sales of future royalties—beginning balance | 120,062 |  |  | 0 |
Royalty monetization proceeds | 0 |  |  | 150,000 |
Non-cash royalty revenue | (35,929) |  |  | (86,722) |
Non-cash interest expense | 18,161 |  |  | 39,016 |
Payments to RPI | 0 |  |  | 0 |
Loss on revaluation of liability related to the sale of future royalties |  |  |  | 0 |
Liabilities related to the sales of future royalties – ending balance | 102,294 | $ 120,062 |  | 102,294 | 102,294
Less: unamortized transaction costs | (2,083) |  |  | (2,083) | (2,083)
Liabilities related to the sales of future royalties, net | $ 100,211 |  |  | $ 100,211 | $ 100,211

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- Definition Gain (Loss) ON Revaluation Of Liabilities Related To The Sale Of Future Royalties, Gross + References No definition available. + Details
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- Definition Liabilities on sale of future royalties, unamortized transaction costs. + References No definition available. + Details
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- Definition Liability Related To Sale Of Future Royalties + References No definition available. + Details
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- Definition Liability related to sale of potential future royalties noncurrent. + References No definition available. + Details
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- Definition Liability related to sale of potential future royalties non current net of issuance costs. + References No definition available. + Details
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- Definition Non cash royalty revenue related to sale future royalties. + References No definition available. + Details
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- Details
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