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Revenue Recognition - Summary of Product Revenue Allowance and Reserve Categories (Detail) - HEPLISAV-B
$ in Thousands
 6 Months Ended
Jun. 30, 2022
USD ($)
Accounts Receivable Reserves  
Valuation And Qualifying Accounts Disclosure [Line Items]  
Balance at Beginning of Period $ 3,823 [1]
Provisions related to current period sales 15,201 [1]
Credit or payments made during the period (12,602) [1]
Balance at End of Period 6,422 [1]
Revenue Reserve Accruals  
Valuation And Qualifying Accounts Disclosure [Line Items]  
Balance at Beginning of Period 8,253 [2]
Provisions related to current period sales 10,333 [2]
Credit or payments made during the period (9,945) [2]
Balance at End of Period $ 8,641 [2]
[1] Reserves are for chargebacks, discounts and other fees.
[2] Accruals are for returns, rebates and other fees.