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Capitalized Software Development Costs, Net - Summary of Capitalized Software Development Costs, Net (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Capitalized Computer Software Net [Line Items]    
Gross carrying amount $ 57,320 $ 49,909
Accumulated amortization (41,368) (35,622)
Net carrying amount 15,952 14,287
Capitalized Software Development Costs    
Capitalized Computer Software Net [Line Items]    
Gross carrying amount $ 57,320 $ 49,909
Amortization period 3 years 3 years
Accumulated amortization $ (41,368) $ (35,622)
Net carrying amount $ 15,952 $ 14,287