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Property and Equipment - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Property, Plant and Equipment [Abstract]        
Depreciation $ 4.6 $ 4.5 $ 13.6 $ 12.9