XML 81 R49.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Symphony Dynamo, Inc. - Additional Information (Detail) (USD $) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Nov. 30, 2009 | Dec. 31, 2014 | Apr. 18, 2006
SDI |  |  |
Business Acquisition Equity Interests Issued Or Issuable [Line Items] |  |  |
Investments in SDI |  |  | $ 50,000,000 us-gaap_EquityMethodInvestments / dei_LegalEntityAxis = dvax_SymphonyDynamoIncMember
Ownership percentage by parent |  |  | 100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = dvax_SymphonyDynamoIncMember
Business acquisition contingent consideration percentage | 50.00%dvax_BusinessAcquisitionContingentConsiderationPercentage / dei_LegalEntityAxis = dvax_SymphonyDynamoIncMember |  |
Business acquisition upfront payment | 50,000,000 us-gaap_PaymentsToAcquireBusinessesGross / dei_LegalEntityAxis = dvax_SymphonyDynamoIncMember |  |
Milestone payments |  | $ 0 dvax_MilestonePayments / dei_LegalEntityAxis = dvax_SymphonyDynamoIncMember |
Holdings |  |  |
Business Acquisition Equity Interests Issued Or Issuable [Line Items] |  |  |
Ownership percentage by parent |  |  | 100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = dvax_SymphonyDynamoHoldingsLlcMember

X
- Definition Business acquisition contingent consideration percentage. + References No definition available. + Details
Name: | dvax_BusinessAcquisitionContingentConsiderationPercentage
Namespace Prefix: | dvax_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Milestone payments. + References No definition available. + Details
Name: | dvax_MilestonePayments
Namespace Prefix: | dvax_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 + Details
Name: | us-gaap_EquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=dvax_SymphonyDynamoHoldingsLlcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=dvax_SymphonyDynamoIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |