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Acquired Intangible Assets - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization $ 122 $ 366 $ 122 $ 366
Total 1,952   1,952  
2020 488   488  
2021 488   488  
2022 488   488  
2023 488   488  
2024 $ 0   $ 0