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Liability Related to Sale of Future Revenues - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Nov. 30, 2022
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Total revenue   $ 1,348,000 $ 998,000 $ 4,088,000 $ 26,363,000
Interest expense related to sale of future revenues       4,134,000  
Interest paid       $ 450,000 5,700,000
NovaQuest Capital Management [Member] | Revenue Interest Financing Agreement [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Effective annual interest rate related to sale of future revenues       15.43%  
NovaQuest Capital Management [Member] | Revenue Interest Financing Agreement [Member] | Minimum [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Prepayment amount of 2024 to 2030 $ 80,000,000        
NovaQuest Capital Management [Member] | Revenue Interest Financing Agreement [Member] | Maximum [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Prepayment amount of 2024 to 2030 125,000,000        
NovaQuest Capital Management [Member] | Payment Period One [Member] | Revenue Interest Financing Agreement [Member] | Minimum [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Revenue interest payment 62,500,000        
NovaQuest Capital Management [Member] | Payment Cap Date on or before December 31, 2028 [Member] | Revenue Interest Financing Agreement [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Maximum payment cap amount 100,000,000        
NovaQuest Capital Management [Member] | Payment Cap Date on or after January 1, 2029 [Member] | Revenue Interest Financing Agreement [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Maximum payment cap amount 112,500,000        
NovaQuest Capital Management [Member] | Payment Cap Date after January 1, 2030 [Member] | Revenue Interest Financing Agreement [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Maximum payment cap amount 125,000,000        
NovaQuest Capital Management [Member] | Payment Period Two [Member] | Revenue Interest Financing Agreement [Member] | Minimum [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Revenue interest payment 125,000,000        
Product [Member] | NovaQuest Capital Management [Member] | Revenue Interest Financing Agreement [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Revenue interest payment 10,000,000        
Other Revenue - Contract Manufacturing [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Total revenue   133,000 269,000 $ 277,000 1,147,000
Astellas Agreement [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Future revenue granted $ 50,000,000        
Percentage of revenue interest on global net sales 100.00%        
Astellas Agreement [Member] | Maximum [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Revenue payment cap amount   125,000,000   125,000,000  
Astellas Agreement [Member] | Product [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Percentage of revenue sold 22.50%        
Astellas Agreement [Member] | Milestone payments [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Percentage of revenue sold 10.00%        
Astellas Agreement [Member] | Milestone payments [Member] | Payment Period One [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Percentage of revenue sold 20.00%        
Development Revenue [Member] | Astellas Agreement [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Total revenue   100,000 300,000 300,000 600,000
Drug Product Revenue [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Total revenue   1,215,000 729,000 3,811,000 25,216,000
Drug Product Revenue [Member] | Astellas Agreement [Member]          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Total revenue   1,200,000 700,000 3,800,000 (500,000)
Non-cash interest expense related to drug product revenue   $ 2,000,000 $ 1,700,000 $ 4,100,000 $ 3,700,000