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Related Party Transaction (Details) - USD ($)
$ in Millions
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
Dec. 31, 2019
Related Party Transaction        
Accrual for potential penalties and interest     $ 0.2  
Chief Executive Officer | Affiliated Entity        
Related Party Transaction        
Due from related party $ 1.4 $ 1.4   $ 1.8