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Intangible Assets - Summary of Amortization Expenses (Detail)
$ in Thousands
Sep. 30, 2020
USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]  
2020 (period from October 1 to December 31) $ 1,817
2021 7,168
2022 4,637
2023 2,159
2024 873
Thereafter $ 3,631