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Intangible Assets, Net - Schedule of Future Amortization of Intellectual Property and Customer Lists (Detail) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Finite Lived Intangible Assets [Line Items]    
2022 (excluding the three months ended March 31, 2022) $ 40  
2023 4  
2024 53  
2025 53  
2026 4  
Thereafter 29  
Finite-Lived Intangible Assets, Net, Total $ 183 $ 196