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Goodwill and Other Intangible Assets - Narrative (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]        
Goodwill and intangible asset impairment $ 0      
Amortization of intangible assets   $ 300,000 $ 300,000 $ 300,000
Future amortization expense, 2020   300,000    
Future amortization expense, 2021   300,000    
Future amortization expense, 2022   $ 300,000