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Summary of Significant Accounting Policies - Schedule of future amortization of intangible assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Future amortization of intangible assets [Abstract]    
2020 $ 6,340  
2021 5,493  
2022 4,315  
2023 3,186  
2024 3,186  
Thereafter 6,118  
Total $ 28,638 $ 7,454