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Revenue Recognition - Summary of Product Revenue Allowance and Reserve Categories (Detail) - HEPLISAV-B $ in Thousands | 3 Months Ended
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Mar. 31, 2021 USD ($)
Valuation And Qualifying Accounts Disclosure [Line Items] |
Provisions related to current period sales | $ 1,641
Credit or payments made during the period | (1,533)
Balance at Beginning of Period | 6,040
Balance at End of Period | 6,148
Accounts Receivable Reserves |
Valuation And Qualifying Accounts Disclosure [Line Items] |
Balance at Beginning of Period | 2,836
Provisions related to current period sales | 1,962
Credit or payments made during the period | (2,469)
Balance at End of Period | $ 2,329

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- Definition Accounts receivable reserves 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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- 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
Balance Type: | credit
Period Type: | duration

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- Definition Revenue reserve accruals balance. + References No definition available. + Details
Name: | dvax_RevenueReserveAccrualsBalance
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
Name: | srt_ProductOrServiceAxis=dvax_HEPLISAVBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_ValuationAllowancesAndReservesTypeAxis=us-gaap_AllowanceForNotesReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |