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Intangible Assets - Aggregate Amortizations (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]    
2021 $ 1,166  
2022 1,166  
2023 251  
2024 and thereafter 0  
Total $ 2,583 $ 3,166