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Accrued Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Accrued Liabilities, Current [Abstract]    
Accrued compensation and benefits $ 10,449 $ 9,626
Accrued issuance costs 5,697 0
Other accrued liabilities 12,364 8,678
Total $ 28,510 $ 18,304