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Revenue Recognition - Summary of Product Revenue Allowance and Reserve Categories (Detail) - HEPLISAV-B $ in Thousands | 9 Months Ended
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Sep. 30, 2023 USD ($)
SEC Schedule, 12-09, Allowance, Notes Receivable [Member] |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Balance at Beginning of Period | $ 8,179 | [1]
Provisions related to current period sales | 42,949 | [1]
Credit or payments made during the period | (40,186) | [1]
Adjustments related to prior periods | (2,629) | [1]
Balance at End of Period | 8,313 | [1]
Revenue Reserve Accruals [Member] |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Balance at Beginning of Period | 10,552 | [2]
Provisions related to current period sales | 34,848 | [2]
Credit or payments made during the period | (27,528) | [2]
Adjustments related to prior periods | 2,297 | [2]
Balance at End of Period | $ 20,169 | [2]
[1] | Reserves are for chargebacks, discounts and other fees.
[2] | Accruals are for returns, rebates and other fees.

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