v3.22.4
Intangible Assets - Summary of Future Intangible Asset Amortization (Detail) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]    
Net Carrying Amount $ 18,565 $ 20,081
HETLIOZ®    
Finite-Lived Intangible Assets [Line Items]    
Net Carrying Amount 18,565 $ 20,081
2023 1,516  
2024 1,516  
2025 1,516  
2026 1,516  
2027 1,516  
Thereafter $ 10,985