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Long-Term Debt - Summary of Future Maturities of Long-Term Debt (Detail) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Long Term Debt Rolling Maturity [Abstract]    
Due in 12 months following September 30, 2020 $ 960  
2021 140,198  
2022 1,034  
2023 1,063  
2024 1,106  
Thereafter 17,972  
Total $ 162,333 $ 173,695