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Summary of Significant Accounting Policies - Additional Information (Detail)
shares in Thousands, $ in Thousands
 1 Months Ended 12 Months Ended
Sep. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Segment
shares
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2022
USD ($)
shares
Summary Of Significant Accounting Policy [Line Items]        
Charge on finished goods inventory   $ 500 $ 900 $ 600
Impairment losses   0    
Finite-lived intangible assets, net   119,782 65,490  
Amortization of intangible assets   14,963 4,093 0
Impairment of intangible assets finite lived   0 0  
Advertising costs   21,100 9,400 5,500
Advertising costs capitalized as prepaid expenses   $ 1,300 $ 0 $ 0
Stock-based compensation expenses $ 10,700      
Antidilutive securities to purchase common stock | shares   18,233 21,264 21,185
Number of business segments | Segment   1    
License Agreements | Neuren        
Summary Of Significant Accounting Policy [Line Items]        
Amortization of intangible assets   $ 15,000 $ 4,100  
Estimated future amortization expense   10,900    
License Agreements | Neuren | Fda Approval Of Daybue        
Summary Of Significant Accounting Policy [Line Items]        
Finite-lived intangible assets, net   $ 138,800    
Maximum | Performance Stock Unit        
Summary Of Significant Accounting Policy [Line Items]        
Vesting percentage   150.00% 200.00%  
Minimum | Performance Stock Unit        
Summary Of Significant Accounting Policy [Line Items]        
Vesting percentage   0.00%