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Revenue Recognition - Summary of Product Revenue Allowance and Reserve Categories (Detail) - HEPLISAV-B $ in Thousands | 6 Months Ended
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Jun. 30, 2021 USD ($)
Valuation And Qualifying Accounts Disclosure [Line Items] |
Balance at Beginning of Period | $ 6,040
Provisions related to current period sales | 4,117
Credit or payments made during the period | (3,104)
Balance at End of Period | 7,053
Accounts Receivable Reserves |
Valuation And Qualifying Accounts Disclosure [Line Items] |
Balance at Beginning of Period | 2,836
Provisions related to current period sales | 7,345
Credit or payments made during the period | (6,820)
Balance at End of Period | $ 3,361

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- Definition Product revenue allowance and reserves credit or payments made during the period. + References No definition available. + Details
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Namespace Prefix: | dvax_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Product revenue allowance and reserves provision related to current period sales. + References No definition available. + Details
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Namespace Prefix: | dvax_
Data Type: | xbrli:monetaryItemType
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- Definition Reserves Accrual Balance. + References No definition available. + Details
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Namespace Prefix: | dvax_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_AccountsReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |