Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Identifiable Intangible Assets - Schedule of Amortization Expense for Intangible Assets (Details)

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Goodwill and Other Identifiable Intangible Assets - Schedule of Amortization Expense for Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Finite Lived Intangible Assets [Line Items]      
Amortization expense for intangible assets $ 9,004 $ 4,160 $ 1,265
Research and Development Expense      
Finite Lived Intangible Assets [Line Items]      
Amortization expense for intangible assets 7,800 2,914  
Sales and Marketing Expense      
Finite Lived Intangible Assets [Line Items]      
Amortization expense for intangible assets 204 175 144
General and Administrative Expense      
Finite Lived Intangible Assets [Line Items]      
Amortization expense for intangible assets $ 1,000 $ 1,071 $ 1,121