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Goodwill, Trade Name, and Customer Lists - Schedule of Changes in Carrying Amount of Goodwill (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2021
USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]  
Balance - December 31, 2020 $ 770,089
Acquisitions 3,120
Foreign currency translation 1,353
Balance – June 30, 2021 $ 774,562