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Additional Balance Sheet Detail - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Balance Sheet Related Disclosures [Abstract]    
Prepaid expenses $ 3,292 $ 3,400
Prepaid sign-on bonuses subject to vesting provisions 405 326
Interest income receivable 406 473
Other 47 0
Total prepaid expenses and other current assets $ 4,150 $ 4,199