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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, 2019 USD ($)
Product Revenue Allowance and Revenue Categories [Line Items] |
Balance at December 31, 2018 | $ 2,305
Provision related to current period sales | 12,661
Credit or payments made during the period | (9,097)
Balance at September 30, 2019 | 5,869
Chargebacks, distribution fees, discounts and other fees |
Product Revenue Allowance and Revenue Categories [Line Items] |
Balance at December 31, 2018 | 1,736
Provision related to current period sales | 10,937
Credit or payments made during the period | (8,689)
Balance at September 30, 2019 | 3,984
Returns |
Product Revenue Allowance and Revenue Categories [Line Items] |
Balance at December 31, 2018 | 569
Provision related to current period sales | 1,724
Credit or payments made during the period | (408)
Balance at September 30, 2019 | $ 1,885

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