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Intangible Assets - Summary of Future Amortization Expense Related to Intangible Assets Subject to Amortization (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]    
2022 $ 78  
2023 78  
2024 78  
2025 75  
2026 72  
Thereafter 493  
Total $ 874 $ 1,187