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Income Taxes - Summary of Income (Loss) Before Provision for Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]    
Federal $ (68,356) $ (23,839)
Foreign (1,428)  
Loss before provision for income taxes $ (69,784) $ (23,839)