v3.25.2
Nature of the Business - Additional Information (Detail) - USD ($)
1 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2030
Dec. 31, 2028
Dec. 31, 2027
Jun. 30, 2026
Jul. 02, 2025
Oct. 31, 2024
Aug. 31, 2023
Jun. 30, 2025
Dec. 31, 2020
Dec. 31, 2024
Nature Of Business [Line Items]                    
Percentage of workforce eliminated             40.00%      
Accumulated deficit               $ 3,082,191,000   $ 2,970,325,000
Net income from up-front                 $ 606,100,000  
Percentage of total number of shares outstanding at the time of offer expiration               50.00%    
Merger agreement waiting period expiration date               Jul. 25, 2025    
Supernus | Forecast [Member] | ZURZUVAE [Member] | JAPAN                    
Nature Of Business [Line Items]                    
First commercial sale of product       $ 0.5            
Supernus | Forecast [Member] | ZURZUVAE [Member] | U.S.                    
Nature Of Business [Line Items]                    
Milestone payments upon achievement of net sales equal to contingent value right $ 1 $ 1 $ 1              
Milestone payments upon achievement of net sales exceeding to contingent value right $ 375,000,000 $ 300,000,000 $ 250,000,000              
Subsequent Event [Member] | Supernus                    
Nature Of Business [Line Items]                    
Acquisition outstanding share per share Price         $ 8.5          
Contingent value right share price         $ 3.5          
Termination fees         $ 22,376,056          
Research and Development Workforce [Member]                    
Nature Of Business [Line Items]                    
Percentage of workforce eliminated           55.00%        
Total Workforce [Member]                    
Nature Of Business [Line Items]                    
Percentage of workforce eliminated           33.00%        
Redeemable Convertible Preferred Stock [Member] | Convertible Notes [Member] | Initial Public Offering [Member]                    
Nature Of Business [Line Items]                    
Accumulated deficit               $ 3,100,000,000