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Company Overview and Basis of Presentation - Related Party Transactions - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]        
Related party expenses $ 0.6 $ 0.7 $ 2.4 $ 2.7