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Company Overview and Basis of Presentation - Related Party Transactions - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]      
Related party expenses $ 4.3 $ 2.2 $ 1.5