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Revenue Recognition - Summary of Product Revenue Allowance and Reserve Categories (Detail) - HEPLISAV-B - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Accounts Receivable Reserves    
Valuation And Qualifying Accounts Disclosure [Line Items]    
Balance at Beginning of Period [1] $ 3,823 $ 2,836
Provisions related to current period sales [1] 34,758 18,209
Credit or payments made during the period [1] (30,402) (17,222)
Balance at End of Period [1] 8,179 3,823
Revenue Reserve Accruals    
Valuation And Qualifying Accounts Disclosure [Line Items]    
Balance at Beginning of Period [2] 8,253 6,040
Provisions related to current period sales [2] 24,806 13,077
Credit or payments made during the period [2] (22,507) (10,864)
Balance at End of Period [2] $ 10,552 $ 8,253
[1] Reserves are for chargebacks, discounts and other fees.
[2] Accruals are for returns, rebates and other fees.