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Goodwill and Intangible Assets, Net - Estimated Future Amortization Expense (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Estimated future amortization expenses of the acquisition-related intangible assets that are considered to have a definite life    
2020 $ 835  
2021 658  
2022 467  
2023 360  
2024 and thereafter 1,228  
Net Carrying Amount $ 3,548 $ 4,379