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Debt - Summary of Long-Term Debt (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
May 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]      
Long-term debt $ 6,927   $ 0
Less amounts classified as current 3,836   0
Long-term debt, excluding current portion 3,091   0
PPP Loan      
Debt Instrument [Line Items]      
Long-term debt $ 6,927 $ 6,927 $ 0