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Property and Equipment - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Property, Plant and Equipment [Abstract]        
Depreciation and amortization $ 9.2 $ 9.4 $ 18.2 $ 18.5
Capitalized software development costs 5.2 6.1 11.0 11.6
Amortization of capitalized software development costs $ 4.7 $ 4.0 $ 9.2 $ 7.5