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Goodwill and Intangible Assets - Estimated Future Amortization Expense By Year From Amortizable Intangibles (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]    
2020 (remaining three months) $ 30,226  
2021 104,109  
2022 94,288  
2023 94,272  
2024 88,975  
Thereafter 409,124  
Finite-lived intangible assets, net $ 820,994 $ 925,087