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COVID-19 (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Jul. 27, 2021 | Apr. 20, 2020
CARES Act, Grant Income [Abstract] |  |  |  |  |  |
Payroll tax payments deferred under the CARES Act | $ 400 |  | $ 400 |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Gain on extinguishment of debt | 3,345 | $ 0 | 3,345 | $ 0 |  |
Payroll tax payments deferred under the CARES Act | 400 |  | 400 |  |  |
Promissory Note | PPP Loan |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Face amount |  |  |  |  |  | $ 3,300
Gain on extinguishment of debt | $ 3,300 |  | $ 3,300 |  |  |
PPP Loan forgiveness application, approved amount |  |  |  |  | $ 3,300 |

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