{
 "instance": {
  "dvax-10q_20210331.htm": {
   "axisCustom": 0,
   "axisStandard": 25,
   "contextCount": 196,
   "dts": {
    "calculationLink": {
     "local": [
      "dvax-20210331_cal.xml"
     ]
    },
    "definitionLink": {
     "local": [
      "dvax-20210331_def.xml"
     ],
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-eedm-def-2020-01-31.xml",
      "http://xbrl.fasb.org/srt/2020/elts/srt-eedm1-def-2020-01-31.xml"
     ]
    },
    "inline": {
     "local": [
      "dvax-10q_20210331.htm"
     ]
    },
    "labelLink": {
     "local": [
      "dvax-20210331_lab.xml"
     ],
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-doc-2020-01-31.xml",
      "https://xbrl.sec.gov/dei/2020/dei-doc-2020-01-31.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "dvax-20210331_pre.xml"
     ]
    },
    "referenceLink": {
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-ref-2020-01-31.xml",
      "https://xbrl.sec.gov/dei/2020/dei-ref-2020-01-31.xml"
     ]
    },
    "schema": {
     "local": [
      "dvax-20210331.xsd"
     ],
     "remote": [
      "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "https://xbrl.sec.gov/country/2020/country-2020-01-31.xsd",
      "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd",
      "https://xbrl.sec.gov/currency/2020/currency-2020-01-31.xsd",
      "https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd",
      "http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd",
      "https://xbrl.sec.gov/exch/2020/exch-2020-01-31.xsd",
      "http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd",
      "https://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd",
      "https://xbrl.sec.gov/sic/2020/sic-2020-01-31.xsd",
      "http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd",
      "http://www.xbrl.org/2006/ref-2006-02-27.xsd",
      "http://xbrl.fasb.org/srt/2020/elts/srt-types-2020-01-31.xsd",
      "http://xbrl.fasb.org/srt/2020/elts/srt-roles-2020-01-31.xsd",
      "https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-roles-2020-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-types-2020-01-31.xsd",
      "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd",
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-parts-codification-2020-01-31.xsd",
      "http://www.xbrl.org/lrr/role/deprecated-2009-12-16.xsd"
     ]
    }
   },
   "elementCount": 533,
   "entityCount": 1,
   "hidden": {
    "http://fasb.org/us-gaap/2020-01-31": 19,
    "http://xbrl.sec.gov/dei/2020-01-31": 4,
    "total": 23
   },
   "keyCustom": 73,
   "keyStandard": 331,
   "memberCustom": 26,
   "memberStandard": 34,
   "nsprefix": "dvax",
   "nsuri": "http://www.dynavax.com/20210331",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "100000 - Document - Document and Entity Information",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation",
     "shortName": "Document and Entity Information",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R10": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CashAndCashEquivalentsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100090 - Disclosure - Cash, Cash Equivalents, Restricted Cash and Marketable Securities",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecurities",
     "shortName": "Cash, Cash Equivalents, Restricted Cash and Marketable Securities",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CashAndCashEquivalentsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R11": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:InventoryDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100100 - Disclosure - Inventories, Net",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureInventoriesNet",
     "shortName": "Inventories, Net",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:InventoryDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R12": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100110 - Disclosure - Commitments and Contingencies",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingencies",
     "shortName": "Commitments and Contingencies",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R13": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CollaborativeArrangementDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100120 - Disclosure - Collaborative Research, Development and License Agreements",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborativeResearchDevelopmentAndLicenseAgreements",
     "shortName": "Collaborative Research, Development and License Agreements",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CollaborativeArrangementDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R14": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LongTermDebtTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100130 - Disclosure - Long-Term Debt",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebt",
     "shortName": "Long-Term Debt",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LongTermDebtTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R15": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueFromContractWithCustomerTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100140 - Disclosure - Revenue Recognition",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognition",
     "shortName": "Revenue Recognition",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueFromContractWithCustomerTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R16": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100150 - Disclosure - Net Income (Loss) Per Share",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureNetIncomeLossPerShare",
     "shortName": "Net Income (Loss) Per Share",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R17": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100160 - Disclosure - Common Stock, Preferred Stock and Warrants",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrants",
     "shortName": "Common Stock, Preferred Stock and Warrants",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R18": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100170 - Disclosure - Equity Plans and Stock-Based Compensation",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensation",
     "shortName": "Equity Plans and Stock-Based Compensation",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R19": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SubsequentEventsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100180 - Disclosure - Subsequent Event",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEvent",
     "shortName": "Subsequent Event",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SubsequentEventsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R2": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue",
      "reportCount": 1,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "100010 - Statement - Condensed Consolidated Balance Sheets",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets",
     "shortName": "Condensed Consolidated Balance Sheets",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R20": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100190 - Disclosure - Organization and Summary of Significant Accounting Policies (Policies)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesPolicies",
     "shortName": "Organization and Summary of Significant Accounting Policies (Policies)",
     "subGroupType": "policies",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R21": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100200 - Disclosure - Fair Value Measurements (Tables)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueMeasurementsTables",
     "shortName": "Fair Value Measurements (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R22": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:CashAndCashEquivalentsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dvax:ReconciliationOfCashCashEquivalentsAndRestrictedCashToStatementOfCashFlowsTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100210 - Disclosure - Cash, Cash Equivalents, Restricted Cash and Marketable Securities (Tables)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesTables",
     "shortName": "Cash, Cash Equivalents, Restricted Cash and Marketable Securities (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:CashAndCashEquivalentsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dvax:ReconciliationOfCashCashEquivalentsAndRestrictedCashToStatementOfCashFlowsTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R23": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:InventoryDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfInventoryCurrentTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100220 - Disclosure - Inventories, Net (Tables)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureInventoriesNetTables",
     "shortName": "Inventories, Net (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:InventoryDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfInventoryCurrentTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R24": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LeaseCostTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100230 - Disclosure - Commitments and Contingencies (Tables)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesTables",
     "shortName": "Commitments and Contingencies (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LeaseCostTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R25": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:RevenueFromContractWithCustomerTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisaggregationOfRevenueTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100240 - Disclosure - Revenue Recognition (Tables)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionTables",
     "shortName": "Revenue Recognition (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:RevenueFromContractWithCustomerTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisaggregationOfRevenueTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R26": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:EarningsPerShareTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100250 - Disclosure - Net Income (Loss) Per Share (Tables)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureNetIncomeLossPerShareTables",
     "shortName": "Net Income (Loss) Per Share (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:EarningsPerShareTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R27": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100260 - Disclosure - Common Stock, Preferred Stock and Warrants (Tables)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsTables",
     "shortName": "Common Stock, Preferred Stock and Warrants (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R28": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100270 - Disclosure - Equity Plans and Stock-Based Compensation (Tables)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationTables",
     "shortName": "Equity Plans and Stock-Based Compensation (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R29": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
       "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:NumberOfOperatingSegments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_dvaxSegment",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100280 - Disclosure - Organization and Summary of Significant Accounting Policies - Additional Information (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail",
     "shortName": "Organization and Summary of Significant Accounting Policies - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
       "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:NumberOfOperatingSegments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_dvaxSegment",
      "xsiNil": "false"
     }
    },
    "R3": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:DebtInstrumentUnamortizedDiscount",
      "reportCount": 1,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "100020 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical",
     "shortName": "Condensed Consolidated Balance Sheets (Parenthetical)",
     "subGroupType": "parenthetical",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:PreferredStockSharesAuthorized",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_xbrlishares",
      "xsiNil": "false"
     }
    },
    "R30": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:FairValueEquityLevel1ToLevel2TransfersAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100290 - Disclosure - Fair Value Measurements - Additional Information (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueMeasurementsAdditionalInformationDetail",
     "shortName": "Fair Value Measurements - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:FairValueEquityLevel1ToLevel2TransfersAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R31": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapFairValueByMeasurementFrequencyAxis_us-gaapFairValueMeasurementsRecurringMember_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:AssetsFairValueDisclosure",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100300 - Disclosure - Fair Value Hierarchy for Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail",
     "shortName": "Fair Value Hierarchy for Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapFairValueByMeasurementFrequencyAxis_us-gaapFairValueMeasurementsRecurringMember_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:AssetsFairValueDisclosure",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R32": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapFairValueByFairValueHierarchyLevelAxis_us-gaapFairValueInputsLevel3Member_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ClassOfWarrantOrRightOutstanding",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_xbrlishares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100310 - Disclosure - Summary of Assumptions to Estimate the Fair Value of Warrant Liability (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfAssumptionsToEstimateFairValueOfWarrantLiabilityDetail",
     "shortName": "Summary of Assumptions to Estimate the Fair Value of Warrant Liability (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapFairValueByFairValueHierarchyLevelAxis_us-gaapFairValueInputsLevel3Member_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ClassOfWarrantOrRightOutstanding",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_xbrlishares",
      "xsiNil": "false"
     }
    },
    "R33": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapFairValueByFairValueHierarchyLevelAxis_us-gaapFairValueInputsLevel3Member_20201231",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100320 - Disclosure - Summary of Changes in Fair Value Warrant liability (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfChangesInFairValueWarrantLiabilityDetail",
     "shortName": "Summary of Changes in Fair Value Warrant liability (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapFairValueByFairValueHierarchyLevelAxis_us-gaapFairValueInputsLevel3Member_20201231",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R34": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue",
      "reportCount": 1,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100330 - Disclosure - Cash, Cash Equivalents, Restricted Cash and Marketable Securities - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesReconciliationOfCashCashEquivalentsAndRestrictedCashDetail",
     "shortName": "Cash, Cash Equivalents, Restricted Cash and Marketable Securities - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "dvax:ReconciliationOfCashCashEquivalentsAndRestrictedCashToStatementOfCashFlowsTableTextBlock",
       "us-gaap:CashAndCashEquivalentsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20200331",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R35": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:AvailableForSaleSecuritiesAmortizedCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100340 - Disclosure - Cash, Cash Equivalents, Restricted Cash and Marketable Securities - Summary of Cash, Cash Equivalents and Marketable Securities (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail",
     "shortName": "Cash, Cash Equivalents, Restricted Cash and Marketable Securities - Summary of Cash, Cash Equivalents and Marketable Securities (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:AvailableForSaleSecuritiesAmortizedCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R36": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "dvax:MaturitiesOfMarketableSecuritiesAvailableForSaleTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100350 - Disclosure - Cash, Cash Equivalents, Restricted Cash and Marketable Securities - Maturities of Marketable Securities Available-for-Sale (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail",
     "shortName": "Cash, Cash Equivalents, Restricted Cash and Marketable Securities - Maturities of Marketable Securities Available-for-Sale (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "dvax:MaturitiesOfMarketableSecuritiesAvailableForSaleTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R37": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:AvailableForSaleSecuritiesGrossRealizedGains",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100360 - Disclosure - Cash, Cash Equivalents, Restricted Cash and Marketable Securities - Additional Information (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesAdditionalInformationDetail",
     "shortName": "Cash, Cash Equivalents, Restricted Cash and Marketable Securities - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:AvailableForSaleSecuritiesGrossRealizedGains",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R38": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfInventoryCurrentTableTextBlock",
       "us-gaap:InventoryDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:InventoryRawMaterialsNetOfReserves",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100370 - Disclosure - Inventories, Net - Summary of Inventories (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureInventoriesNetSummaryOfInventoriesDetail",
     "shortName": "Inventories, Net - Summary of Inventories (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfInventoryCurrentTableTextBlock",
       "us-gaap:InventoryDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:InventoryRawMaterialsNetOfReserves",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R39": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20200101_20200331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:PaymentsForProceedsFromTenantAllowance",
      "reportCount": 1,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100380 - Disclosure - Commitments and Contingencies - Additional Information (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
     "shortName": "Commitments and Contingencies - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:OperatingLeasePayments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R4": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
      "reportCount": 1,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "100030 - Statement - Condensed Consolidated Statements of Operations (Unaudited)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited",
     "shortName": "Condensed Consolidated Statements of Operations (Unaudited)",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:ResearchAndDevelopmentExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R40": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:LeaseCostTableTextBlock",
       "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100390 - Disclosure - Commitments and Contingencies - Summary of Operating Lease Expense (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfOperatingLeaseExpenseDetail",
     "shortName": "Commitments and Contingencies - Summary of Operating Lease Expense (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:LeaseCostTableTextBlock",
       "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R41": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "dvax:ScheduleOfBalanceSheetComponentsOfOperatingLeaseLiabilitiesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseLiabilityCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100400 - Disclosure - Commitments and Contingencies - Summary of Balance Sheet Classification of Operating Lease Liabilities (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfBalanceSheetClassificationOfOperatingLeaseLiabilitiesDetail",
     "shortName": "Commitments and Contingencies - Summary of Balance Sheet Classification of Operating Lease Liabilities (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "dvax:ScheduleOfBalanceSheetComponentsOfOperatingLeaseLiabilitiesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseLiabilityCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R42": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "dvax:SubleaseIncomeAndOperatingLeaseLiabilityMaturityTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "dvax:LessorSubleaseRentalsPaymentsToBeReceivedRemainderOfFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100410 - Disclosure - Commitments and Contingencies - Summary of Maturities of Sublease Income and Operating Lease Liabilities (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail",
     "shortName": "Commitments and Contingencies - Summary of Maturities of Sublease Income and Operating Lease Liabilities (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "dvax:SubleaseIncomeAndOperatingLeaseLiabilityMaturityTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "dvax:LessorSubleaseRentalsPaymentsToBeReceivedRemainderOfFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R43": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfWeightedAverageNumberOfSharesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100430 - Disclosure - Commitments and Contingencies - Summary of Weighted Average Remaining Lease Term and Weighted Average Discount Rate (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfWeightedAverageRemainingLeaseTermAndWeightedAverageDiscountRateDetail",
     "shortName": "Commitments and Contingencies - Summary of Weighted Average Remaining Lease Term and Weighted Average Discount Rate (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfWeightedAverageNumberOfSharesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R44": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:DeferredRevenueNoncurrent",
      "reportCount": 1,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100440 - Disclosure - Collaboration, Development and Supply Agreements-Additional Information (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail",
     "shortName": "Collaboration, Development and Supply Agreements-Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:CollaborativeArrangementDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_srtCounterpartyNameAxis_dvaxValnevaSEMember_20210331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:DeferredRevenueCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R45": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "dvax:LiquidityAndFinancialConditionDisclosurePolicyTextBlock",
       "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "dvax:SecuredLongTermDebtNoncurrentPlusInterestInKind",
      "reportCount": 1,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100450 - Disclosure - Long-Term Debt - Additional Information (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail",
     "shortName": "Long-Term Debt - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapDebtInstrumentAxis_dvaxLoanAgreementMember_20190801",
      "decimals": "2",
      "lang": null,
      "name": "dvax:PercentageOfFeePayableUponPartialPrepaymentOrMaturity",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_xbrlipure",
      "xsiNil": "false"
     }
    },
    "R46": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
      "reportCount": 1,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100460 - Disclosure - Revenue Recognition - Summary of Product Revenue (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueDetail",
     "shortName": "Revenue Recognition - Summary of Product Revenue (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:DisaggregationOfRevenueTableTextBlock",
       "us-gaap:RevenueFromContractWithCustomerTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_srtProductOrServiceAxis_dvaxHEPLISAVBMember_20210101_20210331",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R47": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "us-gaap:RevenueFromContractWithCustomerTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_srtProductOrServiceAxis_dvaxHEPLISAVBMember_20210101_20210331",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:ConcentrationRiskPercentage1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_xbrlipure",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100470 - Disclosure - Revenue Recognition - Additional Information (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail",
     "shortName": "Revenue Recognition - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:RevenueFromContractWithCustomerTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_srtProductOrServiceAxis_dvaxHEPLISAVBMember_20210101_20210331",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:ConcentrationRiskPercentage1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_xbrlipure",
      "xsiNil": "false"
     }
    },
    "R48": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "us-gaap:RevenueFromContractWithCustomerTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_srtProductOrServiceAxis_dvaxHEPLISAVBMember_20210101_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "dvax:ProductRevenueAllowanceAndReservesProvisionRelatedToCurrentPeriodSales",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100480 - Disclosure - Revenue Recognition - Summary of Product Revenue Allowance and Reserve Categories (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueAllowanceAndReserveCategoriesDetail",
     "shortName": "Revenue Recognition - Summary of Product Revenue Allowance and Reserve Categories (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "us-gaap:RevenueFromContractWithCustomerTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_srtProductOrServiceAxis_dvaxHEPLISAVBMember_20210101_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "dvax:ProductRevenueAllowanceAndReservesProvisionRelatedToCurrentPeriodSales",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R49": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100490 - Disclosure - Computation of Basic and Diluted Net Income (Loss) Per Share (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail",
     "shortName": "Computation of Basic and Diluted Net Income (Loss) Per Share (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
       "us-gaap:EarningsPerShareTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R5": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "100040 - Statement - Condensed Consolidated Statements of Comprehensive Loss (Unaudited)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossUnaudited",
     "shortName": "Condensed Consolidated Statements of Comprehensive Loss (Unaudited)",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "-3",
      "lang": null,
      "name": "dvax:ChangeInUnrealizedGainOnMarketableSecuritiesAvailableForSale",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R50": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "us-gaap:EarningsPerShareTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_xbrlishares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100500 - Disclosure - Outstanding Stock Options and Stock Awards Excluded from Calculation of Net Loss Per Share (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOutstandingStockOptionsAndStockAwardsExcludedFromCalculationOfNetLossPerShareDetail",
     "shortName": "Outstanding Stock Options and Stock Awards Excluded from Calculation of Net Loss Per Share (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "us-gaap:EarningsPerShareTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_xbrlishares",
      "xsiNil": "false"
     }
    },
    "R51": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:CommonStockSharesOutstanding",
      "reportCount": 1,
      "unitRef": "U_xbrlishares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100510 - Disclosure - Common Stock, Preferred Stock and Warrants - Additional Information (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
     "shortName": "Common Stock, Preferred Stock and Warrants - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20190801_20190831",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:StockIssuedDuringPeriodSharesNewIssues",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_xbrlishares",
      "xsiNil": "false"
     }
    },
    "R52": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapStatementEquityComponentsAxis_us-gaapWarrantMember_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dvax:WarrantsIssuanceDate",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100520 - Disclosure - Common Stock, Preferred Stock and Warrants - Summary of Common Stock Warrants Outstanding (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsSummaryOfCommonStockWarrantsOutstandingDetail",
     "shortName": "Common Stock, Preferred Stock and Warrants - Summary of Common Stock Warrants Outstanding (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapStatementEquityComponentsAxis_us-gaapWarrantMember_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dvax:WarrantsIssuanceDate",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R53": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "us-gaap:ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingTableTextBlock",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_srtRangeAxis_srtMinimumMember_us-gaapAwardTypeAxis_us-gaapEmployeeStockOptionMember_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100530 - Disclosure - Equity Plans and Stock-Based Compensation - Additional Information (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail",
     "shortName": "Equity Plans and Stock-Based Compensation - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingTableTextBlock",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_srtRangeAxis_srtMinimumMember_us-gaapAwardTypeAxis_us-gaapEmployeeStockOptionMember_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R54": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingTableTextBlock",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20201231",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_xbrlishares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100540 - Disclosure - Equity Plans and Stock-Based Compensation - Option Activity under Stock-Based Compensation Plans (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail",
     "shortName": "Equity Plans and Stock-Based Compensation - Option Activity under Stock-Based Compensation Plans (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingTableTextBlock",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20201231",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_xbrlishares",
      "xsiNil": "false"
     }
    },
    "R55": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapAwardTypeAxis_us-gaapRestrictedStockUnitsRSUMember_20201231",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_xbrlishares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100550 - Disclosure - Equity Plans and Stock-Based Compensation - Summary of Restricted Stock Units Activity (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail",
     "shortName": "Equity Plans and Stock-Based Compensation - Summary of Restricted Stock Units Activity (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapAwardTypeAxis_us-gaapRestrictedStockUnitsRSUMember_20201231",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_xbrlishares",
      "xsiNil": "false"
     }
    },
    "R56": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapAwardTypeAxis_dvaxPerformanceBasedRestrictedStockUnitsMember_20210101_20210331",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD_xbrlishares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100560 - Disclosure - Equity Plans and Stock-Based Compensation -Summary Of Performance Based Restricted Stock Unit (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfPerformanceBasedRestrictedStockUnitDetail",
     "shortName": "Equity Plans and Stock-Based Compensation -Summary Of Performance Based Restricted Stock Unit (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapAwardTypeAxis_dvaxPerformanceBasedRestrictedStockUnitsMember_20210101_20210331",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD_xbrlishares",
      "xsiNil": "false"
     }
    },
    "R57": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapAwardTypeAxis_us-gaapEmployeeStockOptionMember_20210101_20210331",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD_xbrlishares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100570 - Disclosure - Equity Plans and Stock-Based Compensation - Fair Value-Based Measurements and Weighted-Average Assumptions (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail",
     "shortName": "Equity Plans and Stock-Based Compensation - Fair Value-Based Measurements and Weighted-Average Assumptions (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_us-gaapAwardTypeAxis_us-gaapEmployeeStockOptionMember_20210101_20210331",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD_xbrlishares",
      "xsiNil": "false"
     }
    },
    "R58": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100580 - Disclosure - Equity Plans and Stock-Based Compensation - Stock-Based Compensation Expense (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationStockBasedCompensationExpenseDetail",
     "shortName": "Equity Plans and Stock-Based Compensation - Stock-Based Compensation Expense (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R59": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "us-gaap:SubsequentEventsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_srtCounterpartyNameAxis_dvaxCoalitionForEpidemicPreparednessInnovationsMember_us-gaapTypeOfArrangementAxis_dvaxReservationAgreementMember_20210331",
      "decimals": "-2",
      "first": true,
      "lang": null,
      "name": "dvax:ForgivableLoan",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100590 - Disclosure - Subsequent Event - Additional Information (Detail)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail",
     "shortName": "Subsequent Event - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:SubsequentEventsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_srtCounterpartyNameAxis_dvaxCoalitionForEpidemicPreparednessInnovationsMember_us-gaapTypeOfArrangementAxis_dvaxReservationAgreementMember_20210331",
      "decimals": "-2",
      "first": true,
      "lang": null,
      "name": "dvax:ForgivableLoan",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R6": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20191231",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:StockholdersEquity",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "100050 - Statement - Condensed Consolidated Statements of Stockholders' Equity",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity",
     "shortName": "Condensed Consolidated Statements of Stockholders' Equity",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20191231",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:StockholdersEquity",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R7": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "100060 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited",
     "shortName": "Condensed Consolidated Statements of Cash Flows (Unaudited)",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:DepreciationAndAmortization",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_iso4217USD",
      "xsiNil": "false"
     }
    },
    "R8": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100070 - Disclosure - Organization and Summary of Significant Accounting Policies",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPolicies",
     "shortName": "Organization and Summary of Significant Accounting Policies",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R9": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueDisclosuresTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100080 - Disclosure - Fair Value Measurements",
     "role": "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueMeasurements",
     "shortName": "Fair Value Measurements",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "dvax-10q_20210331.htm",
      "contextRef": "C_0001029142_20210101_20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueDisclosuresTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    }
   },
   "segmentCount": 62,
   "tag": {
    "dei_AmendmentFlag": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.",
        "label": "Amendment Flag",
        "terseLabel": "Amendment Flag"
       }
      }
     },
     "localname": "AmendmentFlag",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_CityAreaCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Area code of city",
        "label": "City Area Code",
        "terseLabel": "City Area Code"
       }
      }
     },
     "localname": "CityAreaCode",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_CoverAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cover page.",
        "label": "Cover [Abstract]"
       }
      }
     },
     "localname": "CoverAbstract",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "dei_CurrentFiscalYearEndDate": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "End date of current fiscal year in the format --MM-DD.",
        "label": "Current Fiscal Year End Date",
        "terseLabel": "Current Fiscal Year End Date"
       }
      }
     },
     "localname": "CurrentFiscalYearEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "gMonthDayItemType"
    },
    "dei_DocumentFiscalPeriodFocus": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fiscal period values are FY, Q1, Q2, and Q3.  1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.",
        "label": "Document Fiscal Period Focus",
        "terseLabel": "Document Fiscal Period Focus"
       }
      }
     },
     "localname": "DocumentFiscalPeriodFocus",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "fiscalPeriodItemType"
    },
    "dei_DocumentFiscalYearFocus": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.",
        "label": "Document Fiscal Year Focus",
        "terseLabel": "Document Fiscal Year Focus"
       }
      }
     },
     "localname": "DocumentFiscalYearFocus",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "gYearItemType"
    },
    "dei_DocumentPeriodEndDate": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is YYYY-MM-DD.",
        "label": "Document Period End Date",
        "terseLabel": "Document Period End Date"
       }
      }
     },
     "localname": "DocumentPeriodEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "dateItemType"
    },
    "dei_DocumentQuarterlyReport": {
     "auth_ref": [
      "r467"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true only for a form used as an quarterly report.",
        "label": "Document Quarterly Report",
        "terseLabel": "Document Quarterly Report"
       }
      }
     },
     "localname": "DocumentQuarterlyReport",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_DocumentTransitionReport": {
     "auth_ref": [
      "r468"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true only for a form used as a transition report.",
        "label": "Document Transition Report",
        "terseLabel": "Document Transition Report"
       }
      }
     },
     "localname": "DocumentTransitionReport",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_DocumentType": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.",
        "label": "Document Type",
        "terseLabel": "Document Type"
       }
      }
     },
     "localname": "DocumentType",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "submissionTypeItemType"
    },
    "dei_EntityAddressAddressLine1": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Address Line 1 such as Attn, Building Name, Street Name",
        "label": "Entity Address Address Line1",
        "terseLabel": "Entity Address, Address Line One"
       }
      }
     },
     "localname": "EntityAddressAddressLine1",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressAddressLine2": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Address Line 2 such as Street or Suite number",
        "label": "Entity Address Address Line2",
        "terseLabel": "Entity Address, Address Line Two"
       }
      }
     },
     "localname": "EntityAddressAddressLine2",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressCityOrTown": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the City or Town",
        "label": "Entity Address City Or Town",
        "terseLabel": "Entity Address, City or Town"
       }
      }
     },
     "localname": "EntityAddressCityOrTown",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressPostalZipCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Code for the postal or zip code",
        "label": "Entity Address Postal Zip Code",
        "terseLabel": "Entity Address, Postal Zip Code"
       }
      }
     },
     "localname": "EntityAddressPostalZipCode",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressStateOrProvince": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the state or province.",
        "label": "Entity Address State Or Province",
        "terseLabel": "Entity Address, State or Province"
       }
      }
     },
     "localname": "EntityAddressStateOrProvince",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "stateOrProvinceItemType"
    },
    "dei_EntityCentralIndexKey": {
     "auth_ref": [
      "r469"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.",
        "label": "Entity Central Index Key",
        "terseLabel": "Entity Central Index Key"
       }
      }
     },
     "localname": "EntityCentralIndexKey",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "centralIndexKeyItemType"
    },
    "dei_EntityCommonStockSharesOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.",
        "label": "Entity Common Stock Shares Outstanding",
        "terseLabel": "Entity Common Stock, Shares Outstanding"
       }
      }
     },
     "localname": "EntityCommonStockSharesOutstanding",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "sharesItemType"
    },
    "dei_EntityCurrentReportingStatus": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.",
        "label": "Entity Current Reporting Status",
        "terseLabel": "Entity Current Reporting Status"
       }
      }
     },
     "localname": "EntityCurrentReportingStatus",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains.",
        "label": "Entity [Domain]",
        "terseLabel": "Entity"
       }
      }
     },
     "localname": "EntityDomain",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dei_EntityEmergingGrowthCompany": {
     "auth_ref": [
      "r469"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate if registrant meets the emerging growth company criteria.",
        "label": "Entity Emerging Growth Company",
        "terseLabel": "Entity Emerging Growth Company"
       }
      }
     },
     "localname": "EntityEmergingGrowthCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityFileNumber": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.",
        "label": "Entity File Number",
        "terseLabel": "Entity File Number"
       }
      }
     },
     "localname": "EntityFileNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityFilerCategory": {
     "auth_ref": [
      "r469"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.",
        "label": "Entity Filer Category",
        "verboseLabel": "Entity Filer Category"
       }
      }
     },
     "localname": "EntityFilerCategory",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "filerCategoryItemType"
    },
    "dei_EntityIncorporationStateCountryCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Two-character EDGAR code representing the state or country of incorporation.",
        "label": "Entity Incorporation State Country Code",
        "terseLabel": "Entity Incorporation, State or Country Code"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "edgarStateCountryItemType"
    },
    "dei_EntityInteractiveDataCurrent": {
     "auth_ref": [
      "r470"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).",
        "label": "Entity Interactive Data Current",
        "terseLabel": "Entity Interactive Data Current"
       }
      }
     },
     "localname": "EntityInteractiveDataCurrent",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityRegistrantName": {
     "auth_ref": [
      "r469"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.",
        "label": "Entity Registrant Name",
        "terseLabel": "Entity Registrant Name"
       }
      }
     },
     "localname": "EntityRegistrantName",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityShellCompany": {
     "auth_ref": [
      "r469"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.",
        "label": "Entity Shell Company",
        "terseLabel": "Entity Shell Company"
       }
      }
     },
     "localname": "EntityShellCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntitySmallBusiness": {
     "auth_ref": [
      "r469"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).",
        "label": "Entity Small Business",
        "terseLabel": "Entity Small Business"
       }
      }
     },
     "localname": "EntitySmallBusiness",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityTaxIdentificationNumber": {
     "auth_ref": [
      "r469"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.",
        "label": "Entity Tax Identification Number",
        "terseLabel": "Entity Tax Identification Number"
       }
      }
     },
     "localname": "EntityTaxIdentificationNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "employerIdItemType"
    },
    "dei_LegalEntityAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The set of legal entities associated with a report.",
        "label": "Legal Entity [Axis]",
        "terseLabel": "Legal Entity"
       }
      }
     },
     "localname": "LegalEntityAxis",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "dei_LocalPhoneNumber": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Local phone number for entity.",
        "label": "Local Phone Number",
        "terseLabel": "Local Phone Number"
       }
      }
     },
     "localname": "LocalPhoneNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r465"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Title of a 12(b) registered security.",
        "label": "Security12b Title",
        "terseLabel": "Title of 12(b) Security"
       }
      }
     },
     "localname": "Security12bTitle",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "securityTitleItemType"
    },
    "dei_SecurityExchangeName": {
     "auth_ref": [
      "r466"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the Exchange on which a security is registered.",
        "label": "Security Exchange Name",
        "terseLabel": "Security Exchange Name"
       }
      }
     },
     "localname": "SecurityExchangeName",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "edgarExchangeCodeItemType"
    },
    "dei_TradingSymbol": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Trading symbol of an instrument as listed on an exchange.",
        "label": "Trading Symbol",
        "terseLabel": "Trading Symbol"
       }
      }
     },
     "localname": "TradingSymbol",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "tradingSymbolItemType"
    },
    "dvax_AccountsReceivableReservesBalance": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accounts receivable reserves balance.",
        "label": "Accounts Receivable Reserves Balance",
        "periodEndLabel": "Balance at End of Period",
        "periodStartLabel": "Balance at Beginning of Period"
       }
      }
     },
     "localname": "AccountsReceivableReservesBalance",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueAllowanceAndReserveCategoriesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_AccruedResearchAndDevelopmentExpensesCurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10160.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accrued research and development expenses current.",
        "label": "Accrued Research And Development Expenses Current",
        "terseLabel": "Accrued research and development"
       }
      }
     },
     "localname": "AccruedResearchAndDevelopmentExpensesCurrent",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_AdvancePaymentFromCustomer": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Advance payment from customer.",
        "label": "Advance Payment From Customer",
        "terseLabel": "Advance payment from customer"
       }
      }
     },
     "localname": "AdvancePaymentFromCustomer",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_AntidilutiveSecuritiesExcludedFromComputationOfEarningPerShareAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Antidilutive securities excluded from computation of earning per share.",
        "label": "Antidilutive Securities Excluded From Computation Of Earning Per Share [Abstract]",
        "terseLabel": "Outstanding securities not included in diluted net income (loss) per share calculation (in thousands):"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningPerShareAbstract",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOutstandingStockOptionsAndStockAwardsExcludedFromCalculationOfNetLossPerShareDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "dvax_AssetPurchaseAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Asset purchase agreement.",
        "label": "Asset Purchase Agreement [Member]",
        "terseLabel": "Asset Purchase Agreement"
       }
      }
     },
     "localname": "AssetPurchaseAgreementMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_BCIPLifeSciencesAssociatesLimitedPartnersMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "BCIP Life Sciences Associates, Limited Partners.",
        "label": "B C I P Life Sciences Associates Limited Partners [Member]",
        "terseLabel": "BCIP Life Sciences Associates, L.P"
       }
      }
     },
     "localname": "BCIPLifeSciencesAssociatesLimitedPartnersMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_BackendFacilityFee": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Backend facility fee.",
        "label": "Backend Facility Fee",
        "terseLabel": "backend facility fee"
       }
      }
     },
     "localname": "BackendFacilityFee",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_BainCapitalLifeSciencesFundLimitedPartnerMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Bain Capital Life Sciences Fund, Limited Partner.",
        "label": "Bain Capital Life Sciences Fund Limited Partner [Member]",
        "terseLabel": "Bain Capital Life Sciences Fund, L.P"
       }
      }
     },
     "localname": "BainCapitalLifeSciencesFundLimitedPartnerMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_BainLifeSciencesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Bain life sciences.",
        "label": "Bain Life Sciences [Member]",
        "terseLabel": "Bain Life Sciences"
       }
      }
     },
     "localname": "BainLifeSciencesMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_BaseRentPerSquareFeet": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Base rent per square feet.",
        "label": "Base Rent Per Square Feet",
        "terseLabel": "Base rent per square feet"
       }
      }
     },
     "localname": "BaseRentPerSquareFeet",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_CRGServicingLLCMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "CRG Servicing LLC.",
        "label": "C R G Servicing L L C [Member]",
        "terseLabel": "CRG Servicing LLC"
       }
      }
     },
     "localname": "CRGServicingLLCMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_CashCashEquivalentsAndMarketableSecuritiesLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cash, cash equivalents and marketable securities",
        "label": "Cash Cash Equivalents And Marketable Securities [Line Items]",
        "terseLabel": "Cash Cash Equivalents And Marketable Securities [Line Items]"
       }
      }
     },
     "localname": "CashCashEquivalentsAndMarketableSecuritiesLineItems",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "dvax_CashCashEquivalentsAndMarketableSecuritiesTable": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cash cash equivalents and marketable securities.",
        "label": "Cash Cash Equivalents And Marketable Securities [Table]",
        "terseLabel": "Cash Cash Equivalents And Marketable Securities [Table]"
       }
      }
     },
     "localname": "CashCashEquivalentsAndMarketableSecuritiesTable",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "dvax_ChangeInUnrealizedGainOnMarketableSecuritiesAvailableForSale": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossUnaudited": {
       "order": 10030.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Change in unrealized gain on marketable securities available-for-sale",
        "label": "Change In Unrealized Gain On Marketable Securities Available For Sale",
        "terseLabel": "Change in unrealized gain on marketable securities available- for-sale"
       }
      }
     },
     "localname": "ChangeInUnrealizedGainOnMarketableSecuritiesAvailableForSale",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_ClassOfWarrantOrRightIssued": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Class of warrant or right issued.",
        "label": "Class Of Warrant Or Right Issued",
        "terseLabel": "Warrant issued"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightIssued",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "dvax_CoalitionForEpidemicPreparednessInnovationsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Coalition for Epidemic Preparedness Innovations.",
        "label": "Coalition For Epidemic Preparedness Innovations [Member]",
        "terseLabel": "CEPI Member"
       }
      }
     },
     "localname": "CoalitionForEpidemicPreparednessInnovationsMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_CombinedPriceOfCommonStockAndWarrant": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Combined price of common stock and warrant.",
        "label": "Combined Price Of Common Stock And Warrant",
        "terseLabel": "Combined price of common stock and warrant"
       }
      }
     },
     "localname": "CombinedPriceOfCommonStockAndWarrant",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "dvax_CombinedPriceOfPreferredStockAndWarrant": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Combined price of preferred stock and warrant.",
        "label": "Combined Price Of Preferred Stock And Warrant",
        "terseLabel": "Combined price of preferred stock and warrant"
       }
      }
     },
     "localname": "CombinedPriceOfPreferredStockAndWarrant",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "dvax_CommonStockSalesAgreementAggregateSalesProceeds": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Common stock sales agreement aggregate sales proceeds.",
        "label": "Common Stock Sales Agreement Aggregate Sales Proceeds",
        "terseLabel": "Common stock sales agreement aggregate sales proceeds"
       }
      }
     },
     "localname": "CommonStockSalesAgreementAggregateSalesProceeds",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_ContingentPrecommencializationMilestonePaymentsPercentage": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Contingent precommencialization milestone payments percentage.",
        "label": "Contingent Precommencialization Milestone Payments Percentage",
        "terseLabel": "Contingent precommencialization milestone payments percentage"
       }
      }
     },
     "localname": "ContingentPrecommencializationMilestonePaymentsPercentage",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "dvax_ContractWithCustomersExpectedPeriodOfPaymentToBeReceived": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Contract with customers expected period of payment to be received.",
        "label": "Contract With Customers Expected Period Of Payment To Be Received",
        "terseLabel": "Expected period of payment to be received"
       }
      }
     },
     "localname": "ContractWithCustomersExpectedPeriodOfPaymentToBeReceived",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "dvax_CpG1018Member": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Product CpG 1018.",
        "label": "Cp G1018 [Member]",
        "terseLabel": "CpG 1018"
       }
      }
     },
     "localname": "CpG1018Member",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_DebtInstrumentCovenantDailyMinimumCombinedCashAndInvestmentBalance": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt instrument, covenant daily minimum combined cash and investment balance.",
        "label": "Debt Instrument Covenant Daily Minimum Combined Cash And Investment Balance",
        "terseLabel": "Debt instrument, covenant daily minimum combined cash and investment balance"
       }
      }
     },
     "localname": "DebtInstrumentCovenantDailyMinimumCombinedCashAndInvestmentBalance",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_DisclosureComputationOfBasicAndDilutedEarningsPerShareAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure computation of basic and diluted earnings per share.",
        "label": "Disclosure Computation Of Basic And Diluted Earnings Per Share [Abstract]"
       }
      }
     },
     "localname": "DisclosureComputationOfBasicAndDilutedEarningsPerShareAbstract",
     "nsuri": "http://www.dynavax.com/20210331",
     "xbrltype": "stringItemType"
    },
    "dvax_EarningsPerShareDisclosureLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Earnings per share disclosure.",
        "label": "Earnings Per Share Disclosure [Line Items]",
        "terseLabel": "Earnings Per Share Disclosure [Line Items]"
       }
      }
     },
     "localname": "EarningsPerShareDisclosureLineItems",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOutstandingStockOptionsAndStockAwardsExcludedFromCalculationOfNetLossPerShareDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "dvax_EarningsPerShareDisclosureTable": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Earnings per share disclosure.",
        "label": "Earnings Per Share Disclosure [Table]",
        "terseLabel": "Earnings Per Share Disclosure [Table]"
       }
      }
     },
     "localname": "EarningsPerShareDisclosureTable",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOutstandingStockOptionsAndStockAwardsExcludedFromCalculationOfNetLossPerShareDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "dvax_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncrease": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value measurement with unobservable inputs reconciliation recurring basis liability period increase.",
        "label": "Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Period Increase",
        "terseLabel": "Increase in fair value of warrants exercised"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncrease",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfChangesInFairValueWarrantLiabilityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_ForgivableLoan": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Forgivable loan.",
        "label": "Forgivable Loan",
        "terseLabel": "Interest- free unsecured forgivable loan"
       }
      }
     },
     "localname": "ForgivableLoan",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_GainOnDisposalOfPropertyAndEquipmentAndLeaseTermination": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10160.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Gain on disposal of property and equipment and lease termination.",
        "label": "Gain On Disposal Of Property And Equipment And Lease Termination",
        "negatedLabel": "Gain on disposal of property and equipment and from lease termination"
       }
      }
     },
     "localname": "GainOnDisposalOfPropertyAndEquipmentAndLeaseTermination",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_HEPLISAVBMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "HEPLISAV-B.",
        "label": "H E P L I S A V B [Member]",
        "terseLabel": "HEPLISAV-B",
        "verboseLabel": "HEPLISAV-B"
       }
      }
     },
     "localname": "HEPLISAVBMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueAllowanceAndReserveCategoriesDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionTables"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_HortonStreetMasterLeaseMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Horton street master lease.",
        "label": "Horton Street Master Lease [Member]",
        "verboseLabel": "Horton Street Master Lease"
       }
      }
     },
     "localname": "HortonStreetMasterLeaseMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_HortonStreetSubleaseMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Horton street sublease.",
        "label": "Horton Street Sublease [Member]",
        "terseLabel": "Horton Street Sublease",
        "verboseLabel": "Horton Street Sublease"
       }
      }
     },
     "localname": "HortonStreetSubleaseMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_IncreaseDecreaseInLeaseLiabilities": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10290.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Increase decrease in lease liabilities.",
        "label": "Increase Decrease In Lease Liabilities",
        "negatedLabel": "Lease liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInLeaseLiabilities",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_IncreaseDecreaseInPrepaidManufacturing": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10250.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in prepaid manufacturing.",
        "label": "Increase Decrease In Prepaid Manufacturing",
        "terseLabel": "Prepaid manufacturing"
       }
      }
     },
     "localname": "IncreaseDecreaseInPrepaidManufacturing",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_IncreaseInInterestFreeUnsecuredForgiveableLoanMaximumBorrowingCapacity": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Increase In Interest Free Unsecured Forgiveable Loan Maximum Borrowing Capacity.",
        "label": "Increase In Interest Free Unsecured Forgiveable Loan Maximum Borrowing Capacity",
        "terseLabel": "Increase in interest free unsecured forgiveable loan maximum borrowing capacity"
       }
      }
     },
     "localname": "IncreaseInInterestFreeUnsecuredForgiveableLoanMaximumBorrowingCapacity",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_InterestFreeUnsecuredForgiveableLoanMaximumBorrowingCapacity": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Interest Free Unsecured Forgiveable Loan Maximum Borrowing Capacity .",
        "label": "Interest Free Unsecured Forgiveable Loan Maximum Borrowing Capacity",
        "terseLabel": "Interest free unsecured forgiveable loan Maximum borrowing capacity"
       }
      }
     },
     "localname": "InterestFreeUnsecuredForgiveableLoanMaximumBorrowingCapacity",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_IssuanceWithholdingOfCommonStockUponExerciseOfOptionsVestingOfRestrictedStockUnitsAndVestingOfEarlyExercisedOptionsNetShares": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Issuance (withholding) of common stock upon exercise of options vesting of restricted stock units and vesting of early exercised options net shares.",
        "label": "Issuance Withholding Of Common Stock Upon Exercise Of Options Vesting Of Restricted Stock Units And Vesting Of Early Exercised Options Net Shares",
        "terseLabel": "Issuance of common upon exercise of stock options and restricted stock awards, net (in shares)"
       }
      }
     },
     "localname": "IssuanceWithholdingOfCommonStockUponExerciseOfOptionsVestingOfRestrictedStockUnitsAndVestingOfEarlyExercisedOptionsNetShares",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "dvax_IssuanceWithholdingOfCommonStockUponExerciseOfOptionsVestingOfRestrictedStockUnitsAndVestingOfEarlyExercisedOptionsNetValue": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Issuance (withholding) of common stock upon exercise of options vesting of restricted stock units and vesting of early exercised options net value.",
        "label": "Issuance Withholding Of Common Stock Upon Exercise Of Options Vesting Of Restricted Stock Units And Vesting Of Early Exercised Options Net Value",
        "terseLabel": "Issuance of common stock upon exercise of stock options and restricted stock awards, net"
       }
      }
     },
     "localname": "IssuanceWithholdingOfCommonStockUponExerciseOfOptionsVestingOfRestrictedStockUnitsAndVestingOfEarlyExercisedOptionsNetValue",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_LeaseCommencementDate": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lease commencement date.",
        "label": "Lease Commencement Date",
        "terseLabel": "Operations commencement date"
       }
      }
     },
     "localname": "LeaseCommencementDate",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "dateItemType"
    },
    "dvax_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail": {
       "order": 10060.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease due after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Lessee Operating Lease Liability Payments Due After Year Four",
        "terseLabel": "Thereafter"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_LessorSubleaseRentalsPaymentsToBeReceivedDue": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lessor sublease rentals payments to be received due.",
        "label": "Lessor Sublease Rentals Payments To Be Received Due",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "LessorSubleaseRentalsPaymentsToBeReceivedDue",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_LessorSubleaseRentalsPaymentsToBeReceivedDueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lessor sublease rentals payments to be received due.",
        "label": "Lessor Sublease Rentals Payments To Be Received Due [Abstract]",
        "terseLabel": "Sublease Income"
       }
      }
     },
     "localname": "LessorSubleaseRentalsPaymentsToBeReceivedDueAbstract",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "dvax_LessorSubleaseRentalsPaymentsToBeReceivedDueThereafter": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail": {
       "order": 10120.0,
       "parentTag": "dvax_LessorSubleaseRentalsPaymentsToBeReceivedDue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lessor sublease rentals payments to be received due thereafter.",
        "label": "Lessor Sublease Rentals Payments To Be Received Due Thereafter",
        "terseLabel": "Thereafter"
       }
      }
     },
     "localname": "LessorSubleaseRentalsPaymentsToBeReceivedDueThereafter",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_LessorSubleaseRentalsPaymentsToBeReceivedDueYearFive": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail": {
       "order": 10110.0,
       "parentTag": "dvax_LessorSubleaseRentalsPaymentsToBeReceivedDue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lessor sublease rentals payments to be received due year five.",
        "label": "Lessor Sublease Rentals Payments To Be Received Due Year Five",
        "terseLabel": "2025"
       }
      }
     },
     "localname": "LessorSubleaseRentalsPaymentsToBeReceivedDueYearFive",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_LessorSubleaseRentalsPaymentsToBeReceivedDueYearFour": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail": {
       "order": 10100.0,
       "parentTag": "dvax_LessorSubleaseRentalsPaymentsToBeReceivedDue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lessor sublease rentals payments to be received due year four.",
        "label": "Lessor Sublease Rentals Payments To Be Received Due Year Four",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "LessorSubleaseRentalsPaymentsToBeReceivedDueYearFour",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_LessorSubleaseRentalsPaymentsToBeReceivedDueYearThree": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail": {
       "order": 10090.0,
       "parentTag": "dvax_LessorSubleaseRentalsPaymentsToBeReceivedDue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lessor sublease rentals payments to be received due year three",
        "label": "Lessor Sublease Rentals Payments To Be Received Due Year Three",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "LessorSubleaseRentalsPaymentsToBeReceivedDueYearThree",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_LessorSubleaseRentalsPaymentsToBeReceivedDueYearTwo": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail": {
       "order": 10080.0,
       "parentTag": "dvax_LessorSubleaseRentalsPaymentsToBeReceivedDue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lessor sublease rentals payments to be received due year two.",
        "label": "Lessor Sublease Rentals Payments To Be Received Due Year Two",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "LessorSubleaseRentalsPaymentsToBeReceivedDueYearTwo",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_LessorSubleaseRentalsPaymentsToBeReceivedRemainderOfFiscalYear": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail": {
       "order": 10070.0,
       "parentTag": "dvax_LessorSubleaseRentalsPaymentsToBeReceivedDue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lessor sublease rentals payments to be received remainder of fiscal year.",
        "label": "Lessor Sublease Rentals Payments To Be Received Remainder Of Fiscal Year",
        "terseLabel": "2021 (remaining)"
       }
      }
     },
     "localname": "LessorSubleaseRentalsPaymentsToBeReceivedRemainderOfFiscalYear",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_LicenseArrangementContingentConsiderationPercentage": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "License arrangement contingent consideration percentage.",
        "label": "License Arrangement Contingent Consideration Percentage",
        "terseLabel": "License arrangement contingent consideration percentage"
       }
      }
     },
     "localname": "LicenseArrangementContingentConsiderationPercentage",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "dvax_LicenseArrangementContingentPaymentToAcquireLicense": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "License arrangement contingent payment to acquire license.",
        "label": "License Arrangement Contingent Payment To Acquire License",
        "terseLabel": "License arrangement upfront payment"
       }
      }
     },
     "localname": "LicenseArrangementContingentPaymentToAcquireLicense",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_LiquidityAndFinancialConditionDisclosurePolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Liquidity and financial condition disclosure.",
        "label": "Liquidity And Financial Condition Disclosure Policy [Text Block]",
        "terseLabel": "Liquidity and Financial Condition"
       }
      }
     },
     "localname": "LiquidityAndFinancialConditionDisclosurePolicyTextBlock",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "dvax_LoanAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Loan Agreement Member.",
        "label": "Loan Agreement [Member]",
        "terseLabel": "Loan Agreement"
       }
      }
     },
     "localname": "LoanAgreementMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_MarketBasedPerformanceStockUnitMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Market-based performance stock unit.",
        "label": "Market Based Performance Stock Unit [Member]",
        "terseLabel": "Market Based Performance Stock Unit"
       }
      }
     },
     "localname": "MarketBasedPerformanceStockUnitMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_MaturitiesOfMarketableSecuritiesAvailableForSaleTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Maturities of marketable securities available for sale.",
        "label": "Maturities Of Marketable Securities Available For Sale Table [Text Block]",
        "terseLabel": "Maturities of Marketable Securities Available-for-Sale"
       }
      }
     },
     "localname": "MaturitiesOfMarketableSecuritiesAvailableForSaleTableTextBlock",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "dvax_MinimumAgeApprovedForVaccinePreventionOfInfectionCaused": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Minimum age approved for vaccine prevention of infection caused.",
        "label": "Minimum Age Approved For Vaccine Prevention Of Infection Caused",
        "terseLabel": "Minimum age approved for vaccine prevention of infection caused"
       }
      }
     },
     "localname": "MinimumAgeApprovedForVaccinePreventionOfInfectionCaused",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "dvax_NonCashInterestExpense": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10210.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Non-cash interest expense.",
        "label": "Non Cash Interest Expense",
        "terseLabel": "Non-cash interest expense"
       }
      }
     },
     "localname": "NonCashInterestExpense",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_NumberOfCommonStockPreferredStockConvertibleInto": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of common stock preferred stock convertible into.",
        "label": "Number Of Common Stock Preferred Stock Convertible Into",
        "terseLabel": "Number of common stock allowed to purchase"
       }
      }
     },
     "localname": "NumberOfCommonStockPreferredStockConvertibleInto",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "dvax_OpeartingLeaseRentArea": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Opearting lease rent area.",
        "label": "Opearting Lease Rent Area",
        "terseLabel": "Lease area"
       }
      }
     },
     "localname": "OpeartingLeaseRentArea",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "areaItemType"
    },
    "dvax_OperatingLeaseRightOfUseAssetAmortization": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10150.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Operating lease right of use asset amortization.",
        "label": "Operating Lease Right Of Use Asset Amortization",
        "terseLabel": "Amortization of right-of-use assets"
       }
      }
     },
     "localname": "OperatingLeaseRightOfUseAssetAmortization",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Organization consolidation and presentation of financial statements disclosure.",
        "label": "Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]",
        "terseLabel": "Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]"
       }
      }
     },
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "dvax_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Organization consolidation and presentation of financial statements disclosure.",
        "label": "Organization Consolidation And Presentation Of Financial Statements Disclosure [Table]",
        "terseLabel": "Organization Consolidation And Presentation Of Financial Statements Disclosure [Table]"
       }
      }
     },
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "dvax_OtherRevenueMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Other revenue.",
        "label": "Other Revenue [Member]",
        "terseLabel": "Other Revenue"
       }
      }
     },
     "localname": "OtherRevenueMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_PaymentToHoldings": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Payment to holdings.",
        "label": "Payment To Holdings",
        "terseLabel": "Payment to holdings"
       }
      }
     },
     "localname": "PaymentToHoldings",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_PaymentsToAcquireTechnologyLicenses": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10090.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Payments to acquire technology licenses.",
        "label": "Payments To Acquire Technology Licenses",
        "negatedLabel": "Acquisition of technology licenses"
       }
      }
     },
     "localname": "PaymentsToAcquireTechnologyLicenses",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_PercentageOfCapitalStockOfSubsidiariesSubjectToCertainException": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of capital stock of subsidiaries subject to certain exception.",
        "label": "Percentage Of Capital Stock Of Subsidiaries Subject To Certain Exception",
        "terseLabel": "Percentage of capital stock of subsidiaries subject to certain exception"
       }
      }
     },
     "localname": "PercentageOfCapitalStockOfSubsidiariesSubjectToCertainException",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "dvax_PercentageOfCommonStockHeldNotToExceedByHolderAndAffiliatesForWarrantExercises": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of common stock held not to exceed by holder and affiliates for warrant exercises.",
        "label": "Percentage Of Common Stock Held Not To Exceed By Holder And Affiliates For Warrant Exercises",
        "terseLabel": "Percentage of common stock held not to exceed for warrant exercises"
       }
      }
     },
     "localname": "PercentageOfCommonStockHeldNotToExceedByHolderAndAffiliatesForWarrantExercises",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "dvax_PercentageOfCommonStockToBeHeldByHolderAndAffiliatesForConversionOfPreferredStock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of common stock to be held by holder and affiliates for conversion of preferred stock.",
        "label": "Percentage Of Common Stock To Be Held By Holder And Affiliates For Conversion Of Preferred Stock",
        "terseLabel": "Percentage of common stock to be held for conversion"
       }
      }
     },
     "localname": "PercentageOfCommonStockToBeHeldByHolderAndAffiliatesForConversionOfPreferredStock",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "dvax_PercentageOfCommonStockToBeHeldByHolderAndAffiliatesForExerciseOfWarrants": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of common stock to be held by holder and affiliates for exercise of warrants.",
        "label": "Percentage Of Common Stock To Be Held By Holder And Affiliates For Exercise Of Warrants",
        "terseLabel": "Percentage of common stock to be held for exercise of warrants"
       }
      }
     },
     "localname": "PercentageOfCommonStockToBeHeldByHolderAndAffiliatesForExerciseOfWarrants",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "dvax_PercentageOfExcessRentPaidToLandlord": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of excess rent paid to landlord.",
        "label": "Percentage Of Excess Rent Paid To Landlord",
        "terseLabel": "Percentage of excess rent paid to landlord"
       }
      }
     },
     "localname": "PercentageOfExcessRentPaidToLandlord",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "dvax_PercentageOfFeePayableUponPartialPrepaymentOrMaturity": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of fee payable upon partial prepayment or maturity.",
        "label": "Percentage Of Fee Payable Upon Partial Prepayment Or Maturity",
        "terseLabel": "Percentage of fee payable upon partial prepayment or maturity"
       }
      }
     },
     "localname": "PercentageOfFeePayableUponPartialPrepaymentOrMaturity",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "dvax_PerformanceBasedRestrictedStockUnitsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Performance based restricted stock units.",
        "label": "Performance Based Restricted Stock Units [Member]",
        "terseLabel": "Performance Based Restricted Stock Units"
       }
      }
     },
     "localname": "PerformanceBasedRestrictedStockUnitsMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfPerformanceBasedRestrictedStockUnitDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_PowellStreetSubleaseMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Powell Street Sublease.",
        "label": "Powell Street Sublease [Member]",
        "terseLabel": "Powell Street Sublease"
       }
      }
     },
     "localname": "PowellStreetSubleaseMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_PreferredStockCommonStockAndWarrantsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Preferred stock common Stock and warrants.",
        "label": "Preferred Stock Common Stock And Warrants [Abstract]"
       }
      }
     },
     "localname": "PreferredStockCommonStockAndWarrantsAbstract",
     "nsuri": "http://www.dynavax.com/20210331",
     "xbrltype": "stringItemType"
    },
    "dvax_PreferredStockConversionPricePerShare": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Preferred stock conversion price per share.",
        "label": "Preferred Stock Conversion Price Per Share",
        "terseLabel": "Conversion price per share"
       }
      }
     },
     "localname": "PreferredStockConversionPricePerShare",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "dvax_PreferredStockDeemedDividend": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Preferred stock deemed dividend.",
        "label": "Preferred Stock Deemed Dividend",
        "terseLabel": "Preferred stock deemed dividend"
       }
      }
     },
     "localname": "PreferredStockDeemedDividend",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_PrepaidManufacturing": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10310.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Prepaid Manufacturing.",
        "label": "Prepaid Manufacturing",
        "terseLabel": "Prepaid manufacturing"
       }
      }
     },
     "localname": "PrepaidManufacturing",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_PriceOfCommonStock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Price of common stock.",
        "label": "Price Of Common Stock",
        "terseLabel": "Price of common stock"
       }
      }
     },
     "localname": "PriceOfCommonStock",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "dvax_ProceedsFromExerciseOfStockOptionsAndRestrictedStockAwardsNet": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10070.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Proceeds from exercise of stock options and restricted stock awards net.",
        "label": "Proceeds From Exercise Of Stock Options And Restricted Stock Awards Net",
        "terseLabel": "Proceeds (tax withholding) from exercise of stock options and restricted stock awards, net"
       }
      }
     },
     "localname": "ProceedsFromExerciseOfStockOptionsAndRestrictedStockAwardsNet",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_ProceedsFromIssuanceOfCommonStockAuthorizedRemainingCapacity": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Proceeds from issuance of common stock authorized, remaining capacity.",
        "label": "Proceeds From Issuance Of Common Stock Authorized Remaining Capacity",
        "terseLabel": "Remaining proceeds from common stock, under sales agreement"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfCommonStockAuthorizedRemainingCapacity",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_ProductRevenueAllowanceAndReservesCreditOrPaymentsMadeDuringPeriod": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Product revenue allowance and reserves credit or payments made during the period.",
        "label": "Product Revenue Allowance And Reserves Credit Or Payments Made During Period",
        "negatedLabel": "Credit or payments made during the period"
       }
      }
     },
     "localname": "ProductRevenueAllowanceAndReservesCreditOrPaymentsMadeDuringPeriod",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueAllowanceAndReserveCategoriesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_ProductRevenueAllowanceAndReservesProvisionRelatedToCurrentPeriodSales": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Product revenue allowance and reserves provision related to current period sales.",
        "label": "Product Revenue Allowance And Reserves Provision Related To Current Period Sales",
        "terseLabel": "Provisions related to current period sales"
       }
      }
     },
     "localname": "ProductRevenueAllowanceAndReservesProvisionRelatedToCurrentPeriodSales",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueAllowanceAndReserveCategoriesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_ReconciliationOfCashCashEquivalentsAndRestrictedCashToStatementOfCashFlowsTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Reconciliation of cash, cash equivalents and restricted cash to the statement of cash flows.",
        "label": "Reconciliation Of Cash Cash Equivalents And Restricted Cash To Statement Of Cash Flows Table [Text Block]",
        "terseLabel": "Reconciliation of Cash, Cash Equivalents and Restricted Cash"
       }
      }
     },
     "localname": "ReconciliationOfCashCashEquivalentsAndRestrictedCashToStatementOfCashFlowsTableTextBlock",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "dvax_ReservationAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Reservation Agreement.",
        "label": "Reservation Agreement [Member]",
        "terseLabel": "Reservation Agreement"
       }
      }
     },
     "localname": "ReservationAgreementMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_RevenueReserveAccrualsBalance": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Revenue reserve accruals balance.",
        "label": "Revenue Reserve Accruals Balance",
        "periodEndLabel": "Balance at End of Period",
        "periodStartLabel": "Balance at Beginning of Period"
       }
      }
     },
     "localname": "RevenueReserveAccrualsBalance",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueAllowanceAndReserveCategoriesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_ScheduleOfBalanceSheetComponentsOfOperatingLeaseLiabilitiesTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule of balance sheet components of operating lease liabilities.",
        "label": "Schedule Of Balance Sheet Components Of Operating Lease Liabilities Table [Text Block]",
        "terseLabel": "Summary of Balance Sheet Classification of Operating Lease Liabilities"
       }
      }
     },
     "localname": "ScheduleOfBalanceSheetComponentsOfOperatingLeaseLiabilitiesTableTextBlock",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "dvax_ScheduleOfPerformanceBasedRestrictedStockUnitTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Summary of performance based restricted stock unit.",
        "label": "Schedule Of Performance Based Restricted Stock Unit Table [Text Block]",
        "terseLabel": "Summary Of Performance Based Restricted Stock Unit"
       }
      }
     },
     "localname": "ScheduleOfPerformanceBasedRestrictedStockUnitTableTextBlock",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "dvax_SecuredLongTermDebtNoncurrentPlusInterestInKind": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying amount of collateralized debt obligations, plus interest-in-kind, with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion.",
        "label": "Secured Long Term Debt Noncurrent Plus Interest In Kind",
        "terseLabel": "Principal amount including interest paid in kind"
       }
      }
     },
     "localname": "SecuredLongTermDebtNoncurrentPlusInterestInKind",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_SellingCommissionPercentageFromGrossOfferingProceedsOfSalesOfStock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Selling commission percentage from gross offering proceeds of sales of stock.",
        "label": "Selling Commission Percentage From Gross Offering Proceeds Of Sales Of Stock",
        "terseLabel": "Commission on gross sales proceeds of common stock"
       }
      }
     },
     "localname": "SellingCommissionPercentageFromGrossOfferingProceedsOfSalesOfStock",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "dvax_SeriesBConvertiblePreferredStockMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Series B convertible preferred stock.",
        "label": "Series B Convertible Preferred Stock [Member]",
        "terseLabel": "Series B Convertible Preferred Stock",
        "verboseLabel": "Series B Convertible Preferred Stock"
       }
      }
     },
     "localname": "SeriesBConvertiblePreferredStockMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested In Period Weighted Average Grant Date Fair Value.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested In Period Weighted Average Grant Date Fair Value",
        "terseLabel": "Weighted-average fair value per share"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "dvax_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share based compensation arrangement by share based payment award options aggregate intrinsic value.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Aggregate Intrinsic Value [Abstract]",
        "terseLabel": "Aggregate Intrinsic Value"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "dvax_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share based compensation arrangement by share based payment award options weighted average remaining contractual term.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract]",
        "terseLabel": "Weighted-Average Remaining Contractual Term (years)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "dvax_StockIssuedExerciseOfWarrantsDuringPeriodSharesNewIssues": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Stock issued exercise of warrants during period, shares, new issues.",
        "label": "Stock Issued Exercise Of Warrants During Period Shares New Issues",
        "terseLabel": "Stock Issued Exercise of Warrants During Period, Shares, New Issues"
       }
      }
     },
     "localname": "StockIssuedExerciseOfWarrantsDuringPeriodSharesNewIssues",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "dvax_StockIssuedExerciseOfWarrantsDuringPeriodValueNewIssues": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Stock issued exercise of warrants during period, value, new issues.",
        "label": "Stock Issued Exercise Of Warrants During Period Value New Issues",
        "terseLabel": "Exercise of warrants"
       }
      }
     },
     "localname": "StockIssuedExerciseOfWarrantsDuringPeriodValueNewIssues",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_StockOptionsAndShareAwardsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Stock options and share awards.",
        "label": "Stock Options And Share Awards [Member]",
        "terseLabel": "Stock Options and Stock Awards"
       }
      }
     },
     "localname": "StockOptionsAndShareAwardsMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOutstandingStockOptionsAndStockAwardsExcludedFromCalculationOfNetLossPerShareDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_SubleaseIncomeAndOperatingLeaseLiabilityMaturityTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sublease income and operating lease liability maturity.",
        "label": "Sublease Income And Operating Lease Liability Maturity Table [Text Block]",
        "terseLabel": "Summary of Maturities of Sublease Income and Operating Lease Liabilities"
       }
      }
     },
     "localname": "SubleaseIncomeAndOperatingLeaseLiabilityMaturityTableTextBlock",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "dvax_SummaryOfProductRevenueAllowanceAndReserveCategoriesTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Summary of product revenue allowance and reserve categories.",
        "label": "Summary Of Product Revenue Allowance And Reserve Categories Table [Text Block]",
        "terseLabel": "Summary of Product Revenue Allowance and Reserve Categories"
       }
      }
     },
     "localname": "SummaryOfProductRevenueAllowanceAndReserveCategoriesTableTextBlock",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "dvax_SupplyAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Supply agreement.",
        "label": "Supply Agreement [Member]",
        "terseLabel": "Supply Agreement"
       }
      }
     },
     "localname": "SupplyAgreementMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_SymphonyDynamoHoldingsLlcMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Symphony Dynamo Holdings LLC.",
        "label": "Symphony Dynamo Holdings Llc [Member]",
        "terseLabel": "Symphony Dynamo Holdings LLC"
       }
      }
     },
     "localname": "SymphonyDynamoHoldingsLlcMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_TwentySeventeenAtTheMarketAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Twenty seventeen at the market agreement.",
        "label": "Twenty Seventeen At The Market Agreement [Member]",
        "terseLabel": "2017 ATM Agreement"
       }
      }
     },
     "localname": "TwentySeventeenAtTheMarketAgreementMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_TwoThousandAndEighteenEquityIncentivePlanMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Two thousand and eighteen equity incentive plan.",
        "label": "Two Thousand And Eighteen Equity Incentive Plan [Member]",
        "terseLabel": "2018 Equity Incentive Plan"
       }
      }
     },
     "localname": "TwoThousandAndEighteenEquityIncentivePlanMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_TwoThousandAndFourteenEmployeeStockPurchasePlanMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Two thousand and fourteen employee stock purchase plan.",
        "label": "Two Thousand And Fourteen Employee Stock Purchase Plan [Member]",
        "terseLabel": "2014 Employee Stock Purchase Plan"
       }
      }
     },
     "localname": "TwoThousandAndFourteenEmployeeStockPurchasePlanMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_UnvestedMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Unvested.",
        "label": "Unvested [Member]",
        "terseLabel": "Unvested"
       }
      }
     },
     "localname": "UnvestedMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_ValnevaSEMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Valneva SE.",
        "label": "Valneva S E [Member]",
        "terseLabel": "Valneva SE"
       }
      }
     },
     "localname": "ValnevaSEMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_VestedMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Vested.",
        "label": "Vested [Member]",
        "terseLabel": "Vested"
       }
      }
     },
     "localname": "VestedMember",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "dvax_WarrantLiabilityCurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10180.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Warrant liability current.",
        "label": "Warrant Liability Current",
        "terseLabel": "Warrant liability"
       }
      }
     },
     "localname": "WarrantLiabilityCurrent",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dvax_WarrantsExpirationDate": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Warrants expiration date.",
        "label": "Warrants Expiration Date",
        "terseLabel": "Expiration Date"
       }
      }
     },
     "localname": "WarrantsExpirationDate",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsSummaryOfCommonStockWarrantsOutstandingDetail"
     ],
     "xbrltype": "dateItemType"
    },
    "dvax_WarrantsFairValueAssumptionsDividendYield": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Warrants fair value assumptions dividend yield.",
        "label": "Warrants Fair Value Assumptions Dividend Yield",
        "terseLabel": "Dividend yield"
       }
      }
     },
     "localname": "WarrantsFairValueAssumptionsDividendYield",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfAssumptionsToEstimateFairValueOfWarrantLiabilityDetail"
     ],
     "xbrltype": "decimalItemType"
    },
    "dvax_WarrantsFairValueAssumptionsRiskFreeRate": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Warrants fair value assumptions risk free rate.",
        "label": "Warrants Fair Value Assumptions Risk Free Rate",
        "terseLabel": "Risk-free interest rate"
       }
      }
     },
     "localname": "WarrantsFairValueAssumptionsRiskFreeRate",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfAssumptionsToEstimateFairValueOfWarrantLiabilityDetail"
     ],
     "xbrltype": "decimalItemType"
    },
    "dvax_WarrantsFairValueAssumptionsVolatility": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Warrants fair value assumptions volatility.",
        "label": "Warrants Fair Value Assumptions Volatility",
        "terseLabel": "Expected volatility"
       }
      }
     },
     "localname": "WarrantsFairValueAssumptionsVolatility",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfAssumptionsToEstimateFairValueOfWarrantLiabilityDetail"
     ],
     "xbrltype": "decimalItemType"
    },
    "dvax_WarrantsIssuanceDate": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Warrants issuance date.",
        "label": "Warrants Issuance Date",
        "terseLabel": "Warrants Issuance Date"
       }
      }
     },
     "localname": "WarrantsIssuanceDate",
     "nsuri": "http://www.dynavax.com/20210331",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsSummaryOfCommonStockWarrantsOutstandingDetail"
     ],
     "xbrltype": "dateItemType"
    },
    "srt_CounterpartyNameAxis": {
     "auth_ref": [
      "r56",
      "r110"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Counterparty Name [Axis]",
        "terseLabel": "Counterparty Name"
       }
      }
     },
     "localname": "CounterpartyNameAxis",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_MaximumMember": {
     "auth_ref": [
      "r283",
      "r284",
      "r387",
      "r388",
      "r389",
      "r390",
      "r391",
      "r392",
      "r396",
      "r426",
      "r429"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Maximum [Member]",
        "terseLabel": "Maximum"
       }
      }
     },
     "localname": "MaximumMember",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MinimumMember": {
     "auth_ref": [
      "r283",
      "r284",
      "r387",
      "r388",
      "r389",
      "r390",
      "r391",
      "r392",
      "r396",
      "r426",
      "r429"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Minimum [Member]",
        "terseLabel": "Minimum",
        "verboseLabel": "Minimum"
       }
      }
     },
     "localname": "MinimumMember",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ProductOrServiceAxis": {
     "auth_ref": [
      "r191",
      "r267",
      "r269",
      "r397",
      "r425",
      "r427"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Product Or Service [Axis]",
        "terseLabel": "Product and Service"
       }
      }
     },
     "localname": "ProductOrServiceAxis",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueAllowanceAndReserveCategoriesDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionTables",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ProductsAndServicesDomain": {
     "auth_ref": [
      "r191",
      "r267",
      "r269",
      "r397",
      "r425",
      "r427"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Products And Services [Domain]",
        "terseLabel": "Product and Service"
       }
      }
     },
     "localname": "ProductsAndServicesDomain",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueAllowanceAndReserveCategoriesDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionTables",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RangeAxis": {
     "auth_ref": [
      "r274",
      "r283",
      "r284",
      "r387",
      "r388",
      "r389",
      "r390",
      "r391",
      "r392",
      "r396",
      "r426",
      "r429"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Range [Axis]",
        "terseLabel": "Statistical Measurement"
       }
      }
     },
     "localname": "RangeAxis",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_RangeMember": {
     "auth_ref": [
      "r274",
      "r283",
      "r284",
      "r387",
      "r388",
      "r389",
      "r390",
      "r391",
      "r392",
      "r396",
      "r426",
      "r429"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Range [Member]",
        "terseLabel": "Statistical Measurement"
       }
      }
     },
     "localname": "RangeMember",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RepurchaseAgreementCounterpartyNameDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Repurchase Agreement Counterparty Name [Domain]",
        "terseLabel": "Counterparty Name"
       }
      }
     },
     "localname": "RepurchaseAgreementCounterpartyNameDomain",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_SegmentGeographicalDomain": {
     "auth_ref": [
      "r192",
      "r193",
      "r267",
      "r270",
      "r428",
      "r455",
      "r456",
      "r457",
      "r458",
      "r459",
      "r460",
      "r461",
      "r462"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Segment Geographical [Domain]",
        "terseLabel": "Geographical"
       }
      }
     },
     "localname": "SegmentGeographicalDomain",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_StatementGeographicalAxis": {
     "auth_ref": [
      "r192",
      "r193",
      "r267",
      "r270",
      "r428",
      "r453",
      "r455",
      "r456",
      "r457",
      "r458",
      "r459",
      "r460",
      "r461",
      "r462",
      "r463"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement Geographical [Axis]",
        "terseLabel": "Geographical"
       }
      }
     },
     "localname": "StatementGeographicalAxis",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ValuationAndQualifyingAccountsDisclosureLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Valuation And Qualifying Accounts Disclosure [Line Items]",
        "terseLabel": "Valuation And Qualifying Accounts Disclosure [Line Items]"
       }
      }
     },
     "localname": "ValuationAndQualifyingAccountsDisclosureLineItems",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueAllowanceAndReserveCategoriesDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ValuationAndQualifyingAccountsDisclosureTable": {
     "auth_ref": [
      "r118"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Valuation And Qualifying Accounts Disclosure [Table]",
        "terseLabel": "Valuation And Qualifying Accounts Disclosure [Table]"
       }
      }
     },
     "localname": "ValuationAndQualifyingAccountsDisclosureTable",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueAllowanceAndReserveCategoriesDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "stpr_CA": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "CALIFORNIA",
        "terseLabel": "Emeryville, California (Premises)"
       }
      }
     },
     "localname": "CA",
     "nsuri": "http://xbrl.sec.gov/stpr/2018-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccountsAndOtherReceivablesNetCurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10290.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after allowance, receivable from customers, clients, or other third-parties, and receivables classified as other due within one year or the normal operating cycle, if longer.",
        "label": "Accounts And Other Receivables Net Current",
        "terseLabel": "Accounts and other receivables, net"
       }
      }
     },
     "localname": "AccountsAndOtherReceivablesNetCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccountsPayableCurrent": {
     "auth_ref": [
      "r38"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10150.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Accounts Payable Current",
        "terseLabel": "Accounts payable"
       }
      }
     },
     "localname": "AccountsPayableCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments": {
     "auth_ref": [
      "r98"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10170.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.",
        "label": "Accretion Amortization Of Discounts And Premiums Investments",
        "negatedLabel": "Amortization of premium (accretion of discounts) on marketable securities"
       }
      }
     },
     "localname": "AccretionAmortizationOfDiscountsAndPremiumsInvestments",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccruedLiabilitiesCurrent": {
     "auth_ref": [
      "r41"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10170.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Accrued Liabilities Current",
        "terseLabel": "Accrued liabilities"
       }
      }
     },
     "localname": "AccruedLiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": {
     "auth_ref": [
      "r22",
      "r60",
      "r61",
      "r62",
      "r416",
      "r434",
      "r435"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10080.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.",
        "label": "Accumulated Other Comprehensive Income Loss Net Of Tax",
        "terseLabel": "Accumulated other comprehensive (loss) gain"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeMember": {
     "auth_ref": [
      "r59",
      "r62",
      "r63",
      "r120",
      "r121",
      "r122",
      "r334",
      "r430",
      "r431"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.",
        "label": "Accumulated Other Comprehensive Income [Member]",
        "terseLabel": "Accumulated Other Comprehensive (Loss) Income"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdditionalPaidInCapitalCommonStock": {
     "auth_ref": [
      "r20"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10070.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.",
        "label": "Additional Paid In Capital Common Stock",
        "terseLabel": "Additional paid-in capital"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdditionalPaidInCapitalMember": {
     "auth_ref": [
      "r120",
      "r121",
      "r122",
      "r316",
      "r317",
      "r318"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders.",
        "label": "Additional Paid In Capital [Member]",
        "terseLabel": "Additional Paid-in Capital"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": {
     "auth_ref": [
      "r285",
      "r287",
      "r322",
      "r323"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.",
        "label": "Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value",
        "terseLabel": "Stock compensation expense"
       }
      }
     },
     "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract]",
        "terseLabel": "Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:"
       }
      }
     },
     "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AllocatedShareBasedCompensationExpense": {
     "auth_ref": [
      "r287",
      "r313",
      "r321"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.",
        "label": "Allocated Share Based Compensation Expense",
        "verboseLabel": "Stock-based compensation expense"
       }
      }
     },
     "localname": "AllocatedShareBasedCompensationExpense",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AllowanceForNotesReceivableMember": {
     "auth_ref": [
      "r117"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Allowance for portion expected to be uncollectible of receivable from written agreement to receive, at specified future date, money consisting of principal and accrued interest.",
        "label": "Allowance For Notes Receivable [Member]",
        "terseLabel": "Accounts Receivable Reserves"
       }
      }
     },
     "localname": "AllowanceForNotesReceivableMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueAllowanceAndReserveCategoriesDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": {
     "auth_ref": [
      "r151"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.",
        "label": "Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount",
        "terseLabel": "Outstanding securities not included in diluted net loss per share calculation"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOutstandingStockOptionsAndStockAwardsExcludedFromCalculationOfNetLossPerShareDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis": {
     "auth_ref": [
      "r151"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of antidilutive security.",
        "label": "Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis]",
        "terseLabel": "Antidilutive Securities"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOutstandingStockOptionsAndStockAwardsExcludedFromCalculationOfNetLossPerShareDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AntidilutiveSecuritiesNameDomain": {
     "auth_ref": [
      "r151"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Incremental common shares attributable to securities that were not included in diluted earnings per share (EPS) because to do so would increase EPS amounts or decrease loss per share amounts for the period presented.",
        "label": "Antidilutive Securities Name [Domain]",
        "terseLabel": "Antidilutive Securities, Name"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOutstandingStockOptionsAndStockAwardsExcludedFromCalculationOfNetLossPerShareDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ArrangementsAndNonarrangementTransactionsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations.",
        "label": "Arrangements And Nonarrangement Transactions [Member]",
        "terseLabel": "Collaborative Arrangement and Arrangement Other than Collaborative"
       }
      }
     },
     "localname": "ArrangementsAndNonarrangementTransactionsMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_Assets": {
     "auth_ref": [
      "r109",
      "r180",
      "r183",
      "r189",
      "r206",
      "r332",
      "r335",
      "r354",
      "r399",
      "r415"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets",
        "totalLabel": "Total assets"
       }
      }
     },
     "localname": "Assets",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Assets [Abstract]",
        "terseLabel": "Assets"
       }
      }
     },
     "localname": "AssetsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetsCurrent": {
     "auth_ref": [
      "r4",
      "r5",
      "r54",
      "r109",
      "r206",
      "r332",
      "r335",
      "r354"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10210.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets Current",
        "totalLabel": "Total current assets"
       }
      }
     },
     "localname": "AssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Assets Current [Abstract]",
        "terseLabel": "Current assets:"
       }
      }
     },
     "localname": "AssetsCurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetsFairValueDisclosure": {
     "auth_ref": [
      "r341"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets Fair Value Disclosure",
        "terseLabel": "Total assets"
       }
      }
     },
     "localname": "AssetsFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsFairValueDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Assets Fair Value Disclosure [Abstract]",
        "terseLabel": "Assets"
       }
      }
     },
     "localname": "AssetsFairValueDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis": {
     "auth_ref": [
      "r198",
      "r208"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Available For Sale Debt Securities Amortized Cost Basis",
        "totalLabel": "Total amortized cost"
       }
      }
     },
     "localname": "AvailableForSaleDebtSecuritiesAmortizedCostBasis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecurities": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail": {
       "order": 10030.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesAmortizedCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.",
        "label": "Available For Sale Securities",
        "terseLabel": "Estimated Fair Value"
       }
      }
     },
     "localname": "AvailableForSaleSecurities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax": {
     "auth_ref": [
      "r199"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail": {
       "order": 10010.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesAmortizedCost",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.",
        "label": "Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax",
        "terseLabel": "Unrealized Gains"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail": {
       "order": 10020.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesAmortizedCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.",
        "label": "Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax",
        "negatedLabel": "Unrealized Losses"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesAmortizedCost": {
     "auth_ref": [],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.",
        "label": "Available For Sale Securities Amortized Cost",
        "totalLabel": "Amortized Cost"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesAmortizedCost",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost": {
     "auth_ref": [
      "r202"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail": {
       "order": 10040.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost",
        "terseLabel": "Mature after one year through two years"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue": {
     "auth_ref": [
      "r200",
      "r202",
      "r411"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail": {
       "order": 10020.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Available For Sale Securities Debt Maturities After One Through Five Years Fair Value",
        "terseLabel": "Mature after one year through two years"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Available For Sale Securities Debt Maturities Amortized Cost [Abstract]",
        "terseLabel": "Amortized Cost"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Available For Sale Securities Debt Maturities Fair Value [Abstract]",
        "terseLabel": "Estimated Fair Value"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate": {
     "auth_ref": [
      "r200",
      "r203",
      "r412"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date.",
        "label": "Available For Sale Securities Debt Maturities Single Maturity Date",
        "totalLabel": "Total estimated fair value"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost": {
     "auth_ref": [
      "r201"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail": {
       "order": 10030.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Available For Sale Securities Debt Maturities Within One Year Amortized Cost",
        "terseLabel": "Mature in one year or less"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue": {
     "auth_ref": [
      "r200",
      "r201",
      "r410"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail": {
       "order": 10010.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Available For Sale Securities Debt Maturities Within One Year Fair Value",
        "terseLabel": "Mature in one year or less"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesMaturitiesOfMarketableSecuritiesAvailableForSaleDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent": {
     "auth_ref": [
      "r197",
      "r208"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10280.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.",
        "label": "Available For Sale Securities Debt Securities Current",
        "terseLabel": "Marketable securities available-for-sale"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtSecuritiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesGrossRealizedGains": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.",
        "label": "Available For Sale Securities Gross Realized Gains",
        "verboseLabel": "Realized gains on investments"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesGrossRealizedGains",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.",
        "label": "Available For Sale Securities Gross Realized Losses",
        "verboseLabel": "Realized loss on investments"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesGrossRealizedLosses",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableforsaleSecuritiesMember": {
     "auth_ref": [
      "r205"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Availableforsale Securities [Member]",
        "terseLabel": "Marketable Securities Available-for-Sale"
       }
      }
     },
     "localname": "AvailableforsaleSecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AwardTypeAxis": {
     "auth_ref": [
      "r288",
      "r315"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of award under share-based payment arrangement.",
        "label": "Award Type [Axis]",
        "terseLabel": "Award Type"
       }
      }
     },
     "localname": "AwardTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfPerformanceBasedRestrictedStockUnitDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BalanceSheetLocationAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by location on balance sheet (statement of financial position).",
        "label": "Balance Sheet Location [Axis]",
        "terseLabel": "Balance Sheet Location"
       }
      }
     },
     "localname": "BalanceSheetLocationAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BalanceSheetLocationDomain": {
     "auth_ref": [
      "r338",
      "r340"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Location in the balance sheet (statement of financial position).",
        "label": "Balance Sheet Location [Domain]",
        "terseLabel": "Balance Sheet Location"
       }
      }
     },
     "localname": "BalanceSheetLocationDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_BasisOfAccountingPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).",
        "label": "Basis Of Accounting Policy Policy [Text Block]",
        "terseLabel": "Basis of Presentation"
       }
      }
     },
     "localname": "BasisOfAccountingPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CapitalExpendituresIncurredButNotYetPaid": {
     "auth_ref": [
      "r101",
      "r102",
      "r103"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Future cash outflow to pay for purchases of fixed assets that have occurred.",
        "label": "Capital Expenditures Incurred But Not Yet Paid",
        "terseLabel": "Purchases of property and equipment, not yet paid"
       }
      }
     },
     "localname": "CapitalExpendituresIncurredButNotYetPaid",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashAndCashEquivalentsAtCarryingValue": {
     "auth_ref": [
      "r2",
      "r35",
      "r99"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesReconciliationOfCashCashEquivalentsAndRestrictedCashDetail": {
       "order": 10010.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
       "weight": 1.0
      },
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10270.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.",
        "label": "Cash And Cash Equivalents At Carrying Value",
        "terseLabel": "Cash and cash equivalents"
       }
      }
     },
     "localname": "CashAndCashEquivalentsAtCarryingValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesReconciliationOfCashCashEquivalentsAndRestrictedCashDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashAndCashEquivalentsDisclosureTextBlock": {
     "auth_ref": [
      "r10"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for cash and cash equivalent footnotes,  which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify.",
        "label": "Cash And Cash Equivalents Disclosure [Text Block]",
        "terseLabel": "Cash, Cash Equivalents, Restricted Cash and Marketable Securities"
       }
      }
     },
     "localname": "CashAndCashEquivalentsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecurities"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CashAndCashEquivalentsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash And Cash Equivalents [Member]",
        "terseLabel": "Cash and Cash Equivalents"
       }
      }
     },
     "localname": "CashAndCashEquivalentsMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CashCashEquivalentsAndShortTermInvestments": {
     "auth_ref": [
      "r35"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable.",
        "label": "Cash Cash Equivalents And Short Term Investments",
        "terseLabel": "Cash, cash equivalents and marketable securities"
       }
      }
     },
     "localname": "CashCashEquivalentsAndShortTermInvestments",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsAndShortTermInvestmentsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cash Cash Equivalents And Short Term Investments [Abstract]"
       }
      }
     },
     "localname": "CashCashEquivalentsAndShortTermInvestmentsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
     "auth_ref": [
      "r93",
      "r99",
      "r104"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesReconciliationOfCashCashEquivalentsAndRestrictedCashDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents",
        "periodEndLabel": "Cash, cash equivalents and restricted cash at end of period",
        "periodStartLabel": "Cash, cash equivalents and restricted cash at beginning of period",
        "totalLabel": "Total cash, cash equivalents and restricted cash shown in the condensed consolidated statements of cash flows"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesReconciliationOfCashCashEquivalentsAndRestrictedCashDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": {
     "auth_ref": [
      "r93",
      "r355"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect",
        "totalLabel": "Net increase (decrease) in cash, cash equivalents and restricted cash"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract]",
        "terseLabel": "Non-cash investing and financing activities:"
       }
      }
     },
     "localname": "CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CashMember": {
     "auth_ref": [
      "r10"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits.",
        "label": "Cash [Member]",
        "terseLabel": "Cash"
       }
      }
     },
     "localname": "CashMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ClassOfStockDomain": {
     "auth_ref": [
      "r107",
      "r109",
      "r136",
      "r141",
      "r142",
      "r146",
      "r150",
      "r160",
      "r161",
      "r162",
      "r206",
      "r354"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share of stock differentiated by the voting rights the holder receives. Examples include, but are not limited to, common stock, redeemable preferred stock, nonredeemable preferred stock, and convertible stock.",
        "label": "Class Of Stock [Domain]",
        "terseLabel": "Class of Stock"
       }
      }
     },
     "localname": "ClassOfStockDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOutstandingStockOptionsAndStockAwardsExcludedFromCalculationOfNetLossPerShareDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ClassOfStockLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Class Of Stock [Line Items]",
        "terseLabel": "Class Of Stock [Line Items]"
       }
      }
     },
     "localname": "ClassOfStockLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsSummaryOfCommonStockWarrantsOutstandingDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1": {
     "auth_ref": [
      "r241"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Exercise price per share or per unit of warrants or rights outstanding.",
        "label": "Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1",
        "terseLabel": "Exercise Price per Share"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsSummaryOfCommonStockWarrantsOutstandingDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.",
        "label": "Class Of Warrant Or Right Number Of Securities Called By Each Warrant Or Right",
        "terseLabel": "Number of common stock allowed to purchase"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights": {
     "auth_ref": [
      "r241"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.",
        "label": "Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights",
        "terseLabel": "Shares Issuable"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsSummaryOfCommonStockWarrantsOutstandingDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ClassOfWarrantOrRightOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of warrants or rights outstanding.",
        "label": "Class Of Warrant Or Right Outstanding",
        "terseLabel": "Number of shares",
        "verboseLabel": "Outstanding as of March 31, 2021"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsSummaryOfCommonStockWarrantsOutstandingDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfAssumptionsToEstimateFairValueOfWarrantLiabilityDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CollaborativeArrangementDisclosureTextBlock": {
     "auth_ref": [
      "r328",
      "r329",
      "r331"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for collaborative arrangements in which the entity is a participant, including a) information about the nature and purpose of such arrangements; b) its rights and obligations thereunder; c) the accounting policy for collaborative arrangements; and d) the income statement classification and amounts attributable to transactions arising from the collaborative arrangement between participants.",
        "label": "Collaborative Arrangement Disclosure [Text Block]",
        "terseLabel": "Collaboration, Development and Supply Agreements"
       }
      }
     },
     "localname": "CollaborativeArrangementDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborativeResearchDevelopmentAndLicenseAgreements"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]",
        "terseLabel": "Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]"
       }
      }
     },
     "localname": "CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CommitmentsAndContingencies": {
     "auth_ref": [
      "r47",
      "r223",
      "r403",
      "r420"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10020.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.",
        "label": "Commitments And Contingencies",
        "terseLabel": "Commitments and contingencies (Note 5)"
       }
      }
     },
     "localname": "CommitmentsAndContingencies",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Commitments And Contingencies Disclosure [Abstract]"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": {
     "auth_ref": [
      "r220",
      "r221",
      "r222",
      "r230"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for commitments and contingencies.",
        "label": "Commitments And Contingencies Disclosure [Text Block]",
        "terseLabel": "Commitments and Contingencies"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingencies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CommonStockCapitalSharesReservedForFutureIssuance": {
     "auth_ref": [
      "r49"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate number of common shares reserved for future issuance.",
        "label": "Common Stock Capital Shares Reserved For Future Issuance",
        "terseLabel": "Newly reserved shares of common stock"
       }
      }
     },
     "localname": "CommonStockCapitalSharesReservedForFutureIssuance",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockMember": {
     "auth_ref": [
      "r120",
      "r121"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Stock that is subordinate to all other stock of the issuer.",
        "label": "Common Stock [Member]",
        "terseLabel": "Common Stock"
       }
      }
     },
     "localname": "CommonStockMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommonStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r19"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Face amount or stated value per share of common stock.",
        "label": "Common Stock Par Or Stated Value Per Share",
        "terseLabel": "Common stock, par value"
       }
      }
     },
     "localname": "CommonStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_CommonStockSharesAuthorized": {
     "auth_ref": [
      "r19"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The maximum number of common shares permitted to be issued by an entity's charter and bylaws.",
        "label": "Common Stock Shares Authorized",
        "terseLabel": "Common stock, shares authorized"
       }
      }
     },
     "localname": "CommonStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesIssued": {
     "auth_ref": [
      "r19"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.",
        "label": "Common Stock Shares Issued",
        "terseLabel": "Common stock, shares issued"
       }
      }
     },
     "localname": "CommonStockSharesIssued",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesOutstanding": {
     "auth_ref": [
      "r19",
      "r240"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.",
        "label": "Common Stock Shares Outstanding",
        "terseLabel": "Common stock, shares outstanding"
       }
      }
     },
     "localname": "CommonStockSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockValue": {
     "auth_ref": [
      "r19"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10060.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.",
        "label": "Common Stock Value",
        "terseLabel": "Common stock: $0.001 par value; 278,000 shares authorized at March 31, 2021 and December 31, 2020; 114,563 shares and 110,190 shares issued and outstanding at March 31, 2021 and December 31, 2020, respectively"
       }
      }
     },
     "localname": "CommonStockValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ComprehensiveIncomeNetOfTax": {
     "auth_ref": [
      "r66",
      "r68",
      "r69",
      "r76",
      "r406",
      "r423"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossUnaudited": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.",
        "label": "Comprehensive Income Net Of Tax",
        "totalLabel": "Total comprehensive loss"
       }
      }
     },
     "localname": "ComprehensiveIncomeNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ConcentrationRiskBenchmarkDomain": {
     "auth_ref": [
      "r169",
      "r170",
      "r194",
      "r351",
      "r352"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The denominator in a calculation of a disclosed concentration risk percentage.",
        "label": "Concentration Risk Benchmark [Domain]",
        "terseLabel": "Concentration Risk Benchmark"
       }
      }
     },
     "localname": "ConcentrationRiskBenchmarkDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ConcentrationRiskByBenchmarkAxis": {
     "auth_ref": [
      "r169",
      "r170",
      "r194",
      "r351",
      "r352",
      "r437"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by benchmark of concentration risk.",
        "label": "Concentration Risk By Benchmark [Axis]",
        "terseLabel": "Concentration Risk Benchmark"
       }
      }
     },
     "localname": "ConcentrationRiskByBenchmarkAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ConcentrationRiskByTypeAxis": {
     "auth_ref": [
      "r169",
      "r170",
      "r194",
      "r351",
      "r352",
      "r437"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of concentration risk, for example, but not limited to, asset, liability, net assets, geographic, customer, employees, supplier, lender.",
        "label": "Concentration Risk By Type [Axis]",
        "terseLabel": "Concentration Risk Type"
       }
      }
     },
     "localname": "ConcentrationRiskByTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ConcentrationRiskCustomer": {
     "auth_ref": [
      "r167",
      "r168",
      "r170"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Description of risks that arise due to the volume of business transacted with a particular customer. At a minimum, the description informs financial statement users of the general nature of the risk, but excludes \"Information about Major Customers\" that may be disclosed elsewhere (for instance, segment disclosures).",
        "label": "Concentration Risk Customer",
        "terseLabel": "Concentration risk, customer"
       }
      }
     },
     "localname": "ConcentrationRiskCustomer",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ConcentrationRiskPercentage1": {
     "auth_ref": [
      "r169",
      "r170",
      "r194",
      "r351",
      "r352"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the \"benchmark\" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.",
        "label": "Concentration Risk Percentage1",
        "terseLabel": "Concentration risk, percentage"
       }
      }
     },
     "localname": "ConcentrationRiskPercentage1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ConcentrationRiskTypeDomain": {
     "auth_ref": [
      "r169",
      "r170",
      "r194",
      "r351",
      "r352"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "For an entity that discloses a concentration risk as a percentage of some financial balance or benchmark, identifies the type (for example, asset, liability, net assets, geographic, customer, employees, supplier, lender) of the concentration.",
        "label": "Concentration Risk Type [Domain]",
        "terseLabel": "Concentration Risk Type"
       }
      }
     },
     "localname": "ConcentrationRiskTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ContractualObligation": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.",
        "label": "Contractual Obligation",
        "terseLabel": "total contractual obligations"
       }
      }
     },
     "localname": "ContractualObligation",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ConvertiblePreferredStockMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Preferred stock that may be exchanged into common shares or other types of securities at the owner's option.",
        "label": "Convertible Preferred Stock [Member]",
        "terseLabel": "Series B Convertible Preferred Stock"
       }
      }
     },
     "localname": "ConvertiblePreferredStockMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOutstandingStockOptionsAndStockAwardsExcludedFromCalculationOfNetLossPerShareDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CorporateDebtSecuritiesMember": {
     "auth_ref": [
      "r275",
      "r282",
      "r436"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt securities issued by domestic or foreign corporate business, banks and other entities with a promise of repayment.",
        "label": "Corporate Debt Securities [Member]",
        "terseLabel": "Corporate Debt Securities"
       }
      }
     },
     "localname": "CorporateDebtSecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization": {
     "auth_ref": [
      "r72",
      "r73"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited": {
       "order": 10090.0,
       "parentTag": "us-gaap_CostsAndExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cost of product sold and service rendered, excluding depreciation, depletion, and amortization.",
        "label": "Cost Of Goods And Service Excluding Depreciation Depletion And Amortization",
        "terseLabel": "Cost of sales - product"
       }
      }
     },
     "localname": "CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CostOfGoodsAndServicesSoldAmortization": {
     "auth_ref": [
      "r78"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10200.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited": {
       "order": 10100.0,
       "parentTag": "us-gaap_CostsAndExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of expense for allocation of cost of intangible asset over its useful life directly used in production of good and rendering of service.",
        "label": "Cost Of Goods And Services Sold Amortization",
        "terseLabel": "Cost of sales - amortization of intangible assets"
       }
      }
     },
     "localname": "CostOfGoodsAndServicesSoldAmortization",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CostOfSalesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Primary financial statement caption encompassing cost of sales.",
        "label": "Cost Of Sales [Member]",
        "terseLabel": "Cost of Sales - Product"
       }
      }
     },
     "localname": "CostOfSalesMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CostsAndExpenses": {
     "auth_ref": [
      "r79"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited": {
       "order": 10080.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total costs of sales and operating expenses for the period.",
        "label": "Costs And Expenses",
        "totalLabel": "Total operating expenses"
       }
      }
     },
     "localname": "CostsAndExpenses",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CreditConcentrationRiskMember": {
     "auth_ref": [
      "r353"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Reflects the percentage that a specified receivable or amount at risk from a counterparty under a contractual arrangement is to a specified benchmark, such as total receivables, net revenues, pretax results. Risk is the materially adverse effects of loss attributable to (a) the failure to collect a significant receivable from a major customer or group of homogeneous accounts, or (b) a failure by a counterparty to perform under terms of a contractual arrangement.",
        "label": "Credit Concentration Risk [Member]",
        "terseLabel": "Credit Concentration Risk"
       }
      }
     },
     "localname": "CreditConcentrationRiskMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Debt Disclosure [Abstract]"
       }
      }
     },
     "localname": "DebtDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentAxis": {
     "auth_ref": [
      "r14",
      "r15",
      "r16",
      "r400",
      "r401",
      "r414"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of debt instrument, including, but not limited to, draws against credit facilities.",
        "label": "Debt Instrument [Axis]",
        "terseLabel": "Debt Instrument"
       }
      }
     },
     "localname": "DebtInstrumentAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentInterestRateEffectivePercentage": {
     "auth_ref": [
      "r43",
      "r233",
      "r366"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.",
        "label": "Debt Instrument Interest Rate Effective Percentage",
        "terseLabel": "Debt instrument interest rate, effective percentage"
       }
      }
     },
     "localname": "DebtInstrumentInterestRateEffectivePercentage",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DebtInstrumentInterestRateStatedPercentage": {
     "auth_ref": [
      "r43"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Contractual interest rate for funds borrowed, under the debt agreement.",
        "label": "Debt Instrument Interest Rate Stated Percentage",
        "terseLabel": "Debt interest rate"
       }
      }
     },
     "localname": "DebtInstrumentInterestRateStatedPercentage",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DebtInstrumentLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Debt Instrument [Line Items]",
        "terseLabel": "Debt Instrument [Line Items]"
       }
      }
     },
     "localname": "DebtInstrumentLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentMaturityDate": {
     "auth_ref": [
      "r44",
      "r346"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.",
        "label": "Debt Instrument Maturity Date",
        "terseLabel": "Debt maturity date"
       }
      }
     },
     "localname": "DebtInstrumentMaturityDate",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail"
     ],
     "xbrltype": "dateItemType"
    },
    "us-gaap_DebtInstrumentNameDomain": {
     "auth_ref": [
      "r45"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The name for the particular debt instrument or borrowing that distinguishes it from other debt instruments or borrowings, including draws against credit facilities.",
        "label": "Debt Instrument Name [Domain]",
        "terseLabel": "Debt Instrument, Name"
       }
      }
     },
     "localname": "DebtInstrumentNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtInstrumentPeriodicPaymentPrincipal": {
     "auth_ref": [
      "r45"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of the required periodic payments applied to principal.",
        "label": "Debt Instrument Periodic Payment Principal",
        "terseLabel": "principal amount"
       }
      }
     },
     "localname": "DebtInstrumentPeriodicPaymentPrincipal",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtInstrumentTable": {
     "auth_ref": [
      "r45",
      "r111",
      "r241",
      "r244",
      "r245",
      "r246",
      "r365",
      "r366",
      "r368",
      "r413"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A table or schedule providing information pertaining to long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.",
        "label": "Debt Instrument [Table]",
        "terseLabel": "Debt Instrument [Table]"
       }
      }
     },
     "localname": "DebtInstrumentTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentUnamortizedDiscount": {
     "auth_ref": [
      "r365",
      "r368"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after accumulated amortization, of debt discount.",
        "label": "Debt Instrument Unamortized Discount",
        "terseLabel": "Long-term debt, net of debt discount"
       }
      }
     },
     "localname": "DebtInstrumentUnamortizedDiscount",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]",
        "terseLabel": "Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]"
       }
      }
     },
     "localname": "DeferredCompensationArrangementWithIndividualShareBasedPaymentsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DeferredRevenue": {
     "auth_ref": [
      "r26"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10190.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.",
        "label": "Deferred Revenue",
        "terseLabel": "Deferred revenue"
       }
      }
     },
     "localname": "DeferredRevenue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredRevenueCurrent": {
     "auth_ref": [
      "r26"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current.",
        "label": "Deferred Revenue Current",
        "terseLabel": "Deferred revenue"
       }
      }
     },
     "localname": "DeferredRevenueCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredRevenueNoncurrent": {
     "auth_ref": [
      "r26"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10120.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as noncurrent.",
        "label": "Deferred Revenue Noncurrent",
        "terseLabel": "Long-term deferred revenue",
        "verboseLabel": "Long-term deferred revenue"
       }
      }
     },
     "localname": "DeferredRevenueNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DepreciationAndAmortization": {
     "auth_ref": [
      "r97",
      "r216"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10140.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.",
        "label": "Depreciation And Amortization",
        "terseLabel": "Depreciation and amortization"
       }
      }
     },
     "localname": "DepreciationAndAmortization",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeFairValueOfDerivativeLiability": {
     "auth_ref": [
      "r55",
      "r57",
      "r339",
      "r393"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.",
        "label": "Derivative Fair Value Of Derivative Liability",
        "terseLabel": "Fair value of derivative liability"
       }
      }
     },
     "localname": "DerivativeFairValueOfDerivativeLiability",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DisaggregationOfRevenueTableTextBlock": {
     "auth_ref": [
      "r267"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.",
        "label": "Disaggregation Of Revenue Table [Text Block]",
        "terseLabel": "Summary of Product Revenue"
       }
      }
     },
     "localname": "DisaggregationOfRevenueTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": {
     "auth_ref": [
      "r324"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for share-based payment arrangement.",
        "label": "Disclosure Of Compensation Related Costs Share Based Payments [Text Block]",
        "terseLabel": "Equity Plans and Stock-Based Compensation"
       }
      }
     },
     "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensation"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]"
       }
      }
     },
     "localname": "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Earnings Per Share [Abstract]"
       }
      }
     },
     "localname": "EarningsPerShareAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareBasic": {
     "auth_ref": [
      "r77",
      "r125",
      "r126",
      "r127",
      "r128",
      "r129",
      "r133",
      "r136",
      "r146",
      "r149",
      "r150",
      "r155",
      "r156",
      "r407",
      "r424"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.",
        "label": "Earnings Per Share Basic",
        "terseLabel": "Basic"
       }
      }
     },
     "localname": "EarningsPerShareBasic",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareDiluted": {
     "auth_ref": [
      "r77",
      "r125",
      "r126",
      "r127",
      "r128",
      "r129",
      "r136",
      "r146",
      "r149",
      "r150",
      "r155",
      "r156",
      "r407",
      "r424"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.",
        "label": "Earnings Per Share Diluted",
        "terseLabel": "Diluted"
       }
      }
     },
     "localname": "EarningsPerShareDiluted",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareTextBlock": {
     "auth_ref": [
      "r151",
      "r153",
      "r154",
      "r157"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for earnings per share.",
        "label": "Earnings Per Share [Text Block]",
        "terseLabel": "Net Income (Loss) Per Share"
       }
      }
     },
     "localname": "EarningsPerShareTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureNetIncomeLossPerShare"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
     "auth_ref": [
      "r355"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10040.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies. Excludes amounts for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents",
        "terseLabel": "Effect of exchange rate changes on cash, cash equivalents and restricted cash"
       }
      }
     },
     "localname": "EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount": {
     "auth_ref": [
      "r314"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cost capitalized for award under share-based payment arrangement.",
        "label": "Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount",
        "verboseLabel": "Stock-based compensation expense"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeStockOptionMember": {
     "auth_ref": [
      "r311"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share-based payment arrangement granting right, subject to vesting and other restrictions, to purchase or sell certain number of shares at predetermined price for specified period of time.",
        "label": "Employee Stock Option [Member]",
        "terseLabel": "Share-based Payment Arrangement, Option",
        "verboseLabel": "Employee Stock Option"
       }
      }
     },
     "localname": "EmployeeStockOptionMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Equity [Abstract]"
       }
      }
     },
     "localname": "EquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EquityComponentDomain": {
     "auth_ref": [
      "r120",
      "r121",
      "r122",
      "r124",
      "r130",
      "r132",
      "r159",
      "r207",
      "r240",
      "r247",
      "r316",
      "r317",
      "r318",
      "r326",
      "r327",
      "r356",
      "r357",
      "r358",
      "r359",
      "r360",
      "r362",
      "r430",
      "r431",
      "r432"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Components of equity are the parts of the total Equity balance including that which is allocated to common, preferred, treasury stock, retained earnings, etc.",
        "label": "Equity Component [Domain]",
        "terseLabel": "Equity Component"
       }
      }
     },
     "localname": "EquityComponentDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsSummaryOfCommonStockWarrantsOutstandingDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOutstandingStockOptionsAndStockAwardsExcludedFromCalculationOfNetLossPerShareDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueAdjustmentOfWarrants": {
     "auth_ref": [
      "r97",
      "r236"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail": {
       "order": 10050.0,
       "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted",
       "weight": -1.0
      },
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10180.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited": {
       "order": 10050.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of expense (income) related to adjustment to fair value of warrant liability.",
        "label": "Fair Value Adjustment Of Warrants",
        "negatedLabel": "Change in fair value of warrant liability (Note 10)",
        "terseLabel": "Change in fair value of warrant liability",
        "verboseLabel": "Less: Removal of change in fair value of warrant liability"
       }
      }
     },
     "localname": "FairValueAdjustmentOfWarrants",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]",
        "terseLabel": "Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfAssumptionsToEstimateFairValueOfWarrantLiabilityDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfChangesInFairValueWarrantLiabilityDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": {
     "auth_ref": [
      "r341",
      "r342",
      "r343",
      "r349"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about asset and liability measured at fair value on recurring and nonrecurring basis.",
        "label": "Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]",
        "terseLabel": "Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfAssumptionsToEstimateFairValueOfWarrantLiabilityDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfChangesInFairValueWarrantLiabilityDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock": {
     "auth_ref": [
      "r344"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.",
        "label": "Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques Table [Text Block]",
        "terseLabel": "Summary of Assumptions to Estimate the Fair Value of Warrant Liability"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueMeasurementsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain": {
     "auth_ref": [
      "r347"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Class of asset.",
        "label": "Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation By Asset Class [Domain]",
        "terseLabel": "Asset Class"
       }
      }
     },
     "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueByAssetClassAxis": {
     "auth_ref": [
      "r341",
      "r349"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by class of asset.",
        "label": "Fair Value By Asset Class [Axis]",
        "terseLabel": "Asset Class"
       }
      }
     },
     "localname": "FairValueByAssetClassAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByFairValueHierarchyLevelAxis": {
     "auth_ref": [
      "r275",
      "r276",
      "r277",
      "r278",
      "r279",
      "r280",
      "r281",
      "r282",
      "r342",
      "r384",
      "r385",
      "r386"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient.",
        "label": "Fair Value By Fair Value Hierarchy Level [Axis]",
        "terseLabel": "Fair Value Hierarchy and NAV"
       }
      }
     },
     "localname": "FairValueByFairValueHierarchyLevelAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfAssumptionsToEstimateFairValueOfWarrantLiabilityDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfChangesInFairValueWarrantLiabilityDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByMeasurementFrequencyAxis": {
     "auth_ref": [
      "r341",
      "r342",
      "r345",
      "r346",
      "r350"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by measurement frequency.",
        "label": "Fair Value By Measurement Frequency [Axis]",
        "terseLabel": "Measurement Frequency"
       }
      }
     },
     "localname": "FairValueByMeasurementFrequencyAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueDisclosuresAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fair Value Disclosures [Abstract]"
       }
      }
     },
     "localname": "FairValueDisclosuresAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueDisclosuresTextBlock": {
     "auth_ref": [
      "r348"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.",
        "label": "Fair Value Disclosures [Text Block]",
        "terseLabel": "Fair Value Measurements"
       }
      }
     },
     "localname": "FairValueDisclosuresTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueMeasurements"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueEquityLevel1ToLevel2TransfersAmount": {
     "auth_ref": [
      "r343"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of transfers of financial instruments classified in shareholders' equity measured on a recurring basis out of level 1 of the fair value hierarchy into level 2.",
        "label": "Fair Value Equity Level1 To Level2 Transfers Amount",
        "terseLabel": "Transfers from level 1 to level 2"
       }
      }
     },
     "localname": "FairValueEquityLevel1ToLevel2TransfersAmount",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueMeasurementsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueEquityLevel2ToLevel1TransfersAmount": {
     "auth_ref": [
      "r343"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of transfers of financial instruments classified in shareholders' equity measured on a recurring basis out of level 2 of the fair value hierarchy into level 1.",
        "label": "Fair Value Equity Level2 To Level1 Transfers Amount",
        "terseLabel": "Transfers from level 2 to level 1"
       }
      }
     },
     "localname": "FairValueEquityLevel2ToLevel1TransfersAmount",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueMeasurementsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueInputsLevel1Member": {
     "auth_ref": [
      "r275",
      "r276",
      "r281",
      "r282",
      "r342",
      "r384"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.",
        "label": "Fair Value Inputs Level1 [Member]",
        "terseLabel": "Fair Value, Inputs, Level 1"
       }
      }
     },
     "localname": "FairValueInputsLevel1Member",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueInputsLevel2Member": {
     "auth_ref": [
      "r275",
      "r276",
      "r281",
      "r282",
      "r342",
      "r385"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Inputs other than quoted prices included within level 1 that are observable for an asset or liability, either directly or indirectly, including, but not limited to, quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in inactive markets.",
        "label": "Fair Value Inputs Level2 [Member]",
        "terseLabel": "Fair Value, Inputs, Level 2"
       }
      }
     },
     "localname": "FairValueInputsLevel2Member",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueInputsLevel3Member": {
     "auth_ref": [
      "r275",
      "r276",
      "r277",
      "r278",
      "r279",
      "r280",
      "r281",
      "r282",
      "r342",
      "r386"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "label": "Fair Value Inputs Level3 [Member]",
        "terseLabel": "Fair Value, Inputs, Level 3"
       }
      }
     },
     "localname": "FairValueInputsLevel3Member",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfAssumptionsToEstimateFairValueOfWarrantLiabilityDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfChangesInFairValueWarrantLiabilityDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock": {
     "auth_ref": [
      "r347",
      "r349"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.",
        "label": "Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Text Block]",
        "terseLabel": "Summary of Changes in Fair Value Warrant liability"
       }
      }
     },
     "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueMeasurementsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueMeasurementFrequencyDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Measurement frequency.",
        "label": "Fair Value Measurement Frequency [Domain]",
        "terseLabel": "Measurement Frequency"
       }
      }
     },
     "localname": "FairValueMeasurementFrequencyDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease": {
     "auth_ref": [
      "r347"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "label": "Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Period Increase Decrease",
        "terseLabel": "Increase in the estimated fair value of warrant liability upon revaluation"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfChangesInFairValueWarrantLiabilityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTransfersNet": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of transfers of financial instrument classified as a liability into (out of) level 3 of the fair value hierarchy.",
        "label": "Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Transfers Net",
        "terseLabel": "Transfers in or out of Level 3"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTransfersNet",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueMeasurementsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue": {
     "auth_ref": [
      "r347"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "label": "Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value",
        "periodEndLabel": "Balance",
        "periodStartLabel": "Balance"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfChangesInFairValueWarrantLiabilityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": {
     "auth_ref": [
      "r275",
      "r276",
      "r277",
      "r278",
      "r279",
      "r280",
      "r281",
      "r282",
      "r384",
      "r385",
      "r386"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value.",
        "label": "Fair Value Measurements Fair Value Hierarchy [Domain]",
        "terseLabel": "Fair Value Hierarchy and NAV"
       }
      }
     },
     "localname": "FairValueMeasurementsFairValueHierarchyDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfAssumptionsToEstimateFairValueOfWarrantLiabilityDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfChangesInFairValueWarrantLiabilityDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementsRecurringMember": {
     "auth_ref": [
      "r348",
      "r350"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Frequent fair value measurement. Includes, but is not limited to, fair value adjustment for impairment of asset, liability or equity, frequently measured at fair value.",
        "label": "Fair Value Measurements Recurring [Member]",
        "terseLabel": "Fair Value, Measurements, Recurring"
       }
      }
     },
     "localname": "FairValueMeasurementsRecurringMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_Goodwill": {
     "auth_ref": [
      "r214",
      "r215",
      "r398"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10240.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.",
        "label": "Goodwill",
        "terseLabel": "Goodwill"
       }
      }
     },
     "localname": "Goodwill",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IPOMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "First sale of stock by a private company to the public.",
        "label": "I P O [Member]",
        "terseLabel": "Offering"
       }
      }
     },
     "localname": "IPOMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncomeStatementAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Income Statement [Abstract]"
       }
      }
     },
     "localname": "IncomeStatementAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationAxis": {
     "auth_ref": [
      "r219"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by location in the income statement.",
        "label": "Income Statement Location [Axis]",
        "terseLabel": "Income Statement Location"
       }
      }
     },
     "localname": "IncomeStatementLocationAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Location in the income statement.",
        "label": "Income Statement Location [Domain]",
        "terseLabel": "Income Statement Location"
       }
      }
     },
     "localname": "IncomeStatementLocationDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables": {
     "auth_ref": [
      "r96"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10230.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the amount due from customers for the credit sale of goods and services; includes accounts receivable and other types of receivables.",
        "label": "Increase Decrease In Accounts And Other Receivables",
        "negatedLabel": "Accounts and other receivables, net"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccountsAndOtherReceivables",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccountsPayable": {
     "auth_ref": [
      "r96"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10280.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.",
        "label": "Increase Decrease In Accounts Payable",
        "terseLabel": "Accounts payable"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccountsPayable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities": {
     "auth_ref": [
      "r96"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10310.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in accrued expenses, and obligations classified as other.",
        "label": "Increase Decrease In Accrued Liabilities And Other Operating Liabilities",
        "terseLabel": "Accrued liabilities and other liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInDeferredRevenue": {
     "auth_ref": [
      "r96"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10300.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.",
        "label": "Increase Decrease In Deferred Revenue",
        "terseLabel": "Deferred revenue"
       }
      }
     },
     "localname": "IncreaseDecreaseInDeferredRevenue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInInventories": {
     "auth_ref": [
      "r96"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10240.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.",
        "label": "Increase Decrease In Inventories",
        "negatedLabel": "Inventories, net"
       }
      }
     },
     "localname": "IncreaseDecreaseInInventories",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Increase Decrease In Operating Capital [Abstract]",
        "terseLabel": "Changes in operating assets and liabilities:"
       }
      }
     },
     "localname": "IncreaseDecreaseInOperatingCapitalAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncreaseDecreaseInOtherOperatingAssets": {
     "auth_ref": [
      "r96"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10270.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in operating assets classified as other.",
        "label": "Increase Decrease In Other Operating Assets",
        "negatedLabel": "Other assets"
       }
      }
     },
     "localname": "IncreaseDecreaseInOtherOperatingAssets",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets": {
     "auth_ref": [
      "r96"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10260.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in prepaid expenses, and assets classified as other.",
        "label": "Increase Decrease In Prepaid Deferred Expense And Other Assets",
        "negatedLabel": "Prepaid expenses and other current assets"
       }
      }
     },
     "localname": "IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants": {
     "auth_ref": [
      "r137",
      "r138",
      "r139",
      "r150"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail": {
       "order": 10030.0,
       "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding",
       "weight": 1.0
      }
     },
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.",
        "label": "Incremental Common Shares Attributable To Call Options And Warrants",
        "terseLabel": "Effect of dilutive warrants"
       }
      }
     },
     "localname": "IncrementalCommonSharesAttributableToCallOptionsAndWarrants",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements": {
     "auth_ref": [
      "r137",
      "r138",
      "r140",
      "r150"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail": {
       "order": 10020.0,
       "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding",
       "weight": 1.0
      }
     },
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.",
        "label": "Incremental Common Shares Attributable To Share Based Payment Arrangements",
        "terseLabel": "Stock-based compensation plans"
       }
      }
     },
     "localname": "IncrementalCommonSharesAttributableToShareBasedPaymentArrangements",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_InformationByCategoryOfDebtSecurityAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by category of debt security, either available-for-sale or held-to-maturity.",
        "label": "Information By Category Of Debt Security [Axis]",
        "terseLabel": "Debt Security Category"
       }
      }
     },
     "localname": "InformationByCategoryOfDebtSecurityAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_InterestExpense": {
     "auth_ref": [
      "r71",
      "r179",
      "r364",
      "r367",
      "r408"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited": {
       "order": 10030.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of the cost of borrowed funds accounted for as interest expense.",
        "label": "Interest Expense",
        "negatedLabel": "Interest expense"
       }
      }
     },
     "localname": "InterestExpense",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestExpenseDebt": {
     "auth_ref": [
      "r82",
      "r234"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of the cost of borrowed funds accounted for as interest expense for debt.",
        "label": "Interest Expense Debt",
        "terseLabel": "Interest expense related to initial term loan"
       }
      }
     },
     "localname": "InterestExpenseDebt",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestPaidNet": {
     "auth_ref": [
      "r92",
      "r94",
      "r100"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.",
        "label": "Interest Paid Net",
        "terseLabel": "Cash paid during the period for interest"
       }
      }
     },
     "localname": "InterestPaidNet",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InventoriesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tangible personal property held for sale in the ordinary course of business, or in process of, or to be consumed in, production for sale.",
        "label": "Inventories [Member]",
        "terseLabel": "Inventory"
       }
      }
     },
     "localname": "InventoriesMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InventoryDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Inventory Disclosure [Abstract]"
       }
      }
     },
     "localname": "InventoryDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_InventoryDisclosureTextBlock": {
     "auth_ref": [
      "r213"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory.",
        "label": "Inventory Disclosure [Text Block]",
        "terseLabel": "Inventories, net"
       }
      }
     },
     "localname": "InventoryDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureInventoriesNet"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_InventoryFinishedGoodsNetOfReserves": {
     "auth_ref": [
      "r27",
      "r212"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureInventoriesNetSummaryOfInventoriesDetail": {
       "order": 10030.0,
       "parentTag": "us-gaap_InventoryNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.",
        "label": "Inventory Finished Goods Net Of Reserves",
        "terseLabel": "Finished goods"
       }
      }
     },
     "localname": "InventoryFinishedGoodsNetOfReserves",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureInventoriesNetSummaryOfInventoriesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InventoryNet": {
     "auth_ref": [
      "r3",
      "r52"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureInventoriesNetSummaryOfInventoriesDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10300.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.",
        "label": "Inventory Net",
        "terseLabel": "Inventories, net",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "InventoryNet",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureInventoriesNetSummaryOfInventoriesDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InventoryPolicyTextBlock": {
     "auth_ref": [
      "r9",
      "r53",
      "r105",
      "r158",
      "r209",
      "r210",
      "r213"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost.",
        "label": "Inventory Policy [Text Block]",
        "terseLabel": "Inventories"
       }
      }
     },
     "localname": "InventoryPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_InventoryRawMaterialsNetOfReserves": {
     "auth_ref": [
      "r29",
      "r212"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureInventoriesNetSummaryOfInventoriesDetail": {
       "order": 10010.0,
       "parentTag": "us-gaap_InventoryNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.",
        "label": "Inventory Raw Materials Net Of Reserves",
        "terseLabel": "Raw materials"
       }
      }
     },
     "localname": "InventoryRawMaterialsNetOfReserves",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureInventoriesNetSummaryOfInventoriesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InventoryValuationReserves": {
     "auth_ref": [
      "r52",
      "r118",
      "r211"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of valuation reserve for inventory.",
        "label": "Inventory Valuation Reserves",
        "terseLabel": "Inventory reserve"
       }
      }
     },
     "localname": "InventoryValuationReserves",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InventoryWorkInProcessNetOfReserves": {
     "auth_ref": [
      "r28",
      "r212"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureInventoriesNetSummaryOfInventoriesDetail": {
       "order": 10020.0,
       "parentTag": "us-gaap_InventoryNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.",
        "label": "Inventory Work In Process Net Of Reserves",
        "terseLabel": "Work-in-process"
       }
      }
     },
     "localname": "InventoryWorkInProcessNetOfReserves",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureInventoriesNetSummaryOfInventoriesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InvestmentIncomeInterest": {
     "auth_ref": [
      "r81",
      "r178"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited": {
       "order": 10020.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.",
        "label": "Investment Income Interest",
        "terseLabel": "Interest income"
       }
      }
     },
     "localname": "InvestmentIncomeInterest",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InvestmentTypeAxis": {
     "auth_ref": [
      "r438",
      "r439",
      "r440",
      "r441",
      "r442",
      "r443",
      "r444",
      "r445",
      "r446",
      "r447",
      "r448",
      "r449",
      "r450",
      "r451",
      "r452"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of investments.",
        "label": "Investment Type [Axis]",
        "terseLabel": "Investment Type"
       }
      }
     },
     "localname": "InvestmentTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_InvestmentTypeCategorizationMember": {
     "auth_ref": [
      "r438",
      "r439",
      "r440",
      "r441",
      "r442",
      "r443",
      "r444",
      "r445",
      "r446",
      "r447",
      "r448",
      "r449",
      "r450",
      "r451",
      "r452"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Asset obtained to generate income or appreciate in value.",
        "label": "Investment Type Categorization [Member]",
        "terseLabel": "Investments"
       }
      }
     },
     "localname": "InvestmentTypeCategorizationMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Investments Debt And Equity Securities [Abstract]"
       }
      }
     },
     "localname": "InvestmentsDebtAndEquitySecuritiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_LeaseCostTableTextBlock": {
     "auth_ref": [
      "r378"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.",
        "label": "Lease Cost Table [Text Block]",
        "terseLabel": "Summary of Operating Lease Expense"
       }
      }
     },
     "localname": "LeaseCostTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LeaseExpirationDate1": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Date which lease or group of leases is set to expire, in CCYY-MM-DD format.",
        "label": "Lease Expiration Date1",
        "terseLabel": "Lease expiration date"
       }
      }
     },
     "localname": "LeaseExpirationDate1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "dateItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue": {
     "auth_ref": [
      "r379"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail2": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease.",
        "label": "Lessee Operating Lease Liability Payments Due",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": {
     "auth_ref": [
      "r379"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail": {
       "order": 10020.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Lessee Operating Lease Liability Payments Due Next Twelve Months",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour": {
     "auth_ref": [
      "r379"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail": {
       "order": 10050.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Lessee Operating Lease Liability Payments Due Year Four",
        "terseLabel": "2025"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFour",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": {
     "auth_ref": [
      "r379"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail": {
       "order": 10040.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Lessee Operating Lease Liability Payments Due Year Three",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearThree",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": {
     "auth_ref": [
      "r379"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail": {
       "order": 10030.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Lessee Operating Lease Liability Payments Due Year Two",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear": {
     "auth_ref": [
      "r379"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail": {
       "order": 10010.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.",
        "label": "Lessee Operating Lease Liability Payments Remainder Of Fiscal Year",
        "terseLabel": "2021 (remaining)"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": {
     "auth_ref": [
      "r379"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail2": {
       "order": 10010.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.",
        "label": "Lessee Operating Lease Liability Undiscounted Excess Amount",
        "negatedLabel": "Present value adjustment"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseOptionToExtend": {
     "auth_ref": [
      "r373"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Description of terms and conditions of option to extend lessee's operating lease. Includes, but is not limited to, information about option recognized as part of right-of-use asset and lease liability.",
        "label": "Lessee Operating Lease Option To Extend",
        "terseLabel": "Lease option to extend"
       }
      }
     },
     "localname": "LesseeOperatingLeaseOptionToExtend",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LesseeOperatingLeaseRenewalTerm": {
     "auth_ref": [
      "r373"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Lessee Operating Lease Renewal Term",
        "terseLabel": "Renewal term of lease"
       }
      }
     },
     "localname": "LesseeOperatingLeaseRenewalTerm",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_LesseeOperatingLeaseTermOfContract": {
     "auth_ref": [
      "r373"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Lessee Operating Lease Term Of Contract",
        "terseLabel": "Initial lease term"
       }
      }
     },
     "localname": "LesseeOperatingLeaseTermOfContract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_LesseeOperatingSubleaseExistenceOfOptionToExtend": {
     "auth_ref": [
      "r373"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicates (true false) whether sublessee has option to extend operating sublease.",
        "label": "Lessee Operating Sublease Existence Of Option To Extend",
        "terseLabel": "Existence of option to extend"
       }
      }
     },
     "localname": "LesseeOperatingSubleaseExistenceOfOptionToExtend",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "booleanItemType"
    },
    "us-gaap_LesseeOperatingSubleaseOptionToExtend": {
     "auth_ref": [
      "r373"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Description of terms and conditions of option to extend operating sublease.",
        "label": "Lessee Operating Sublease Option To Extend",
        "terseLabel": "Option to extend"
       }
      }
     },
     "localname": "LesseeOperatingSubleaseOptionToExtend",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_Liabilities": {
     "auth_ref": [
      "r40",
      "r109",
      "r184",
      "r206",
      "r333",
      "r335",
      "r336",
      "r354"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10010.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.",
        "label": "Liabilities",
        "terseLabel": "Liability under agreement",
        "totalLabel": "Total liabilities"
       }
      }
     },
     "localname": "Liabilities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquity": {
     "auth_ref": [
      "r25",
      "r109",
      "r206",
      "r354",
      "r402",
      "r418"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.",
        "label": "Liabilities And Stockholders Equity",
        "totalLabel": "Total liabilities and stockholders\u2019 equity"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Liabilities And Stockholders Equity [Abstract]",
        "terseLabel": "Liabilities and stockholders\u2019 equity"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilitiesCurrent": {
     "auth_ref": [
      "r42",
      "r109",
      "r206",
      "r333",
      "r335",
      "r336",
      "r354"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10100.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.",
        "label": "Liabilities Current",
        "totalLabel": "Total current liabilities"
       }
      }
     },
     "localname": "LiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Liabilities Current [Abstract]",
        "terseLabel": "Current liabilities:"
       }
      }
     },
     "localname": "LiabilitiesCurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilitiesFairValueDisclosure": {
     "auth_ref": [
      "r341"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of financial and nonfinancial obligations.",
        "label": "Liabilities Fair Value Disclosure",
        "terseLabel": "Total liabilities"
       }
      }
     },
     "localname": "LiabilitiesFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesFairValueDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Liabilities Fair Value Disclosure [Abstract]",
        "terseLabel": "Liabilities"
       }
      }
     },
     "localname": "LiabilitiesFairValueDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": {
     "auth_ref": [
      "r39"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.",
        "label": "Line Of Credit Facility Maximum Borrowing Capacity",
        "terseLabel": "Maximum borrowing capacity",
        "verboseLabel": "Maximum borrowing capacity"
       }
      }
     },
     "localname": "LineOfCreditFacilityMaximumBorrowingCapacity",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtNoncurrent": {
     "auth_ref": [
      "r45"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10110.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.",
        "label": "Long Term Debt Noncurrent",
        "terseLabel": "Long-term debt, net of debt discount of $1,016 and $1,094 at March 31, 2021 and December 31, 2020, respectively"
       }
      }
     },
     "localname": "LongTermDebtNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtTextBlock": {
     "auth_ref": [
      "r235"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for long-term debt.",
        "label": "Long Term Debt [Text Block]",
        "terseLabel": "Long-Term Debt"
       }
      }
     },
     "localname": "LongTermDebtTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebt"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LossContingenciesByNatureOfContingencyAxis": {
     "auth_ref": [
      "r223",
      "r224",
      "r225",
      "r226",
      "r227",
      "r228",
      "r229",
      "r231",
      "r232"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of existing condition, situation, or set of circumstances involving uncertainty as to possible loss to an enterprise that will ultimately be resolved when one or more future events occur or fail to occur.",
        "label": "Loss Contingencies By Nature Of Contingency [Axis]",
        "terseLabel": "Loss Contingency Nature"
       }
      }
     },
     "localname": "LossContingenciesByNatureOfContingencyAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LossContingenciesLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Loss Contingencies [Line Items]",
        "terseLabel": "Loss Contingencies [Line Items]"
       }
      }
     },
     "localname": "LossContingenciesLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LossContingenciesTable": {
     "auth_ref": [
      "r223",
      "r224",
      "r225",
      "r226",
      "r227",
      "r228",
      "r229",
      "r231",
      "r232"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Discloses the specific components (such as the nature, name, and date) of the loss contingency and gives an estimate of the possible loss or range of loss, or states that a reasonable estimate cannot be made. Excludes environmental contingencies, warranties and unconditional purchase obligations.",
        "label": "Loss Contingencies [Table]",
        "terseLabel": "Loss Contingencies [Table]"
       }
      }
     },
     "localname": "LossContingenciesTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LossContingencyNatureDomain": {
     "auth_ref": [
      "r223",
      "r224",
      "r225",
      "r226",
      "r227",
      "r228",
      "r229",
      "r231",
      "r232"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "An existing condition, situation, or set of circumstances involving uncertainty as to possible loss to an enterprise that will ultimately be resolved when one or more future events occur or fail to occur. Resolution of the uncertainty may confirm the incurrence of a loss or impairment of an asset or the incurrence of a liability.",
        "label": "Loss Contingency Nature [Domain]",
        "terseLabel": "Loss Contingency, Nature"
       }
      }
     },
     "localname": "LossContingencyNatureDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MoneyMarketFundsMember": {
     "auth_ref": [
      "r275"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fund that invests in short-term money-market instruments, for example, but not limited to, commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and other highly liquid securities.",
        "label": "Money Market Funds [Member]",
        "terseLabel": "Money Market Funds"
       }
      }
     },
     "localname": "MoneyMarketFundsMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivities": {
     "auth_ref": [
      "r93"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10030.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.",
        "label": "Net Cash Provided By Used In Financing Activities",
        "totalLabel": "Net cash provided by financing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Net Cash Provided By Used In Financing Activities [Abstract]",
        "terseLabel": "Financing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivities": {
     "auth_ref": [
      "r93"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10020.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.",
        "label": "Net Cash Provided By Used In Investing Activities",
        "totalLabel": "Net cash (used in) provided by investing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Net Cash Provided By Used In Investing Activities [Abstract]",
        "terseLabel": "Investing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivities": {
     "auth_ref": [
      "r93",
      "r95",
      "r98"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10010.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.",
        "label": "Net Cash Provided By Used In Operating Activities",
        "totalLabel": "Net cash provided by (used in) operating activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Net Cash Provided By Used In Operating Activities [Abstract]",
        "terseLabel": "Operating activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetIncomeLoss": {
     "auth_ref": [
      "r0",
      "r64",
      "r67",
      "r74",
      "r98",
      "r109",
      "r123",
      "r125",
      "r126",
      "r127",
      "r128",
      "r131",
      "r132",
      "r143",
      "r180",
      "r182",
      "r185",
      "r188",
      "r190",
      "r206",
      "r354",
      "r404",
      "r421"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail": {
       "order": 10060.0,
       "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic",
       "weight": 1.0
      },
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10130.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossUnaudited": {
       "order": 10010.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0
      },
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.",
        "label": "Net Income Loss",
        "terseLabel": "Net income (loss)",
        "totalLabel": "Net income (loss)"
       }
      }
     },
     "localname": "NetIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossUnaudited",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic": {
     "auth_ref": [
      "r125",
      "r126",
      "r127",
      "r128",
      "r133",
      "r134",
      "r145",
      "r150",
      "r180",
      "r182",
      "r185",
      "r188",
      "r190"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail": {
       "order": 10040.0,
       "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.",
        "label": "Net Income Loss Available To Common Stockholders Basic",
        "totalLabel": "Net income (loss) attributable to common stockholders, basic"
       }
      }
     },
     "localname": "NetIncomeLossAvailableToCommonStockholdersBasic",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted": {
     "auth_ref": [
      "r135",
      "r145",
      "r150"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.",
        "label": "Net Income Loss Available To Common Stockholders Diluted",
        "totalLabel": "Net income (loss) attributable to common stockholders, diluted"
       }
      }
     },
     "localname": "NetIncomeLossAvailableToCommonStockholdersDiluted",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetIncomeLossAvailableToCommonStockholdersDilutedAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Net Income Loss Available To Common Stockholders Diluted [Abstract]",
        "terseLabel": "Net income (loss) per share attributable to common stockholders"
       }
      }
     },
     "localname": "NetIncomeLossAvailableToCommonStockholdersDilutedAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.",
        "label": "New Accounting Pronouncements Policy Policy [Text Block]",
        "terseLabel": "Recent Accounting Pronouncements"
       }
      }
     },
     "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_NumberOfOperatingSegments": {
     "auth_ref": [
      "r175"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.",
        "label": "Number Of Operating Segments",
        "terseLabel": "Number of operating segment"
       }
      }
     },
     "localname": "NumberOfOperatingSegments",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_OperatingExpensesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Operating Expenses [Abstract]",
        "terseLabel": "Operating expenses:"
       }
      }
     },
     "localname": "OperatingExpensesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingIncomeLoss": {
     "auth_ref": [
      "r180",
      "r182",
      "r185",
      "r188",
      "r190"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited": {
       "order": 10010.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The net result for the period of deducting operating expenses from operating revenues.",
        "label": "Operating Income Loss",
        "totalLabel": "Income (loss) from operations"
       }
      }
     },
     "localname": "OperatingIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseExpense": {
     "auth_ref": [
      "r371"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of operating lease expense. Excludes sublease income.",
        "label": "Operating Lease Expense",
        "terseLabel": "Operating lease expense"
       }
      }
     },
     "localname": "OperatingLeaseExpense",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfOperatingLeaseExpenseDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Operating Lease Liabilities Payments Due [Abstract]",
        "terseLabel": "Operating Lease Liabilities"
       }
      }
     },
     "localname": "OperatingLeaseLiabilitiesPaymentsDueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingLeaseLiability": {
     "auth_ref": [
      "r370"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfBalanceSheetClassificationOfOperatingLeaseLiabilitiesDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail2": {
       "order": 10020.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease.",
        "label": "Operating Lease Liability",
        "terseLabel": "Total",
        "totalLabel": "Total operating lease liabilities"
       }
      }
     },
     "localname": "OperatingLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfBalanceSheetClassificationOfOperatingLeaseLiabilitiesDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfMaturitiesOfSubleaseIncomeAndOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilityCurrent": {
     "auth_ref": [
      "r370"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfBalanceSheetClassificationOfOperatingLeaseLiabilitiesDetail": {
       "order": 10010.0,
       "parentTag": "us-gaap_OperatingLeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.",
        "label": "Operating Lease Liability Current",
        "terseLabel": "Current portion of lease liabilities (included in other current liabilities)"
       }
      }
     },
     "localname": "OperatingLeaseLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfBalanceSheetClassificationOfOperatingLeaseLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilityNoncurrent": {
     "auth_ref": [
      "r370"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfBalanceSheetClassificationOfOperatingLeaseLiabilitiesDetail": {
       "order": 10020.0,
       "parentTag": "us-gaap_OperatingLeaseLiability",
       "weight": 1.0
      },
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10130.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.",
        "label": "Operating Lease Liability Noncurrent",
        "terseLabel": "Long-term portion of lease liabilities"
       }
      }
     },
     "localname": "OperatingLeaseLiabilityNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfBalanceSheetClassificationOfOperatingLeaseLiabilitiesDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasePayments": {
     "auth_ref": [
      "r372",
      "r375"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.",
        "label": "Operating Lease Payments",
        "terseLabel": "Cash paid for amounts included in the measurement of operating lease liabilities"
       }
      }
     },
     "localname": "OperatingLeasePayments",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseRightOfUseAsset": {
     "auth_ref": [
      "r369"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10230.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's right to use underlying asset under operating lease.",
        "label": "Operating Lease Right Of Use Asset",
        "terseLabel": "Operating lease right-of-use assets"
       }
      }
     },
     "localname": "OperatingLeaseRightOfUseAsset",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent": {
     "auth_ref": [
      "r377",
      "r380"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average discount rate for operating lease calculated at point in time.",
        "label": "Operating Lease Weighted Average Discount Rate Percent",
        "terseLabel": "Weighted average discount rate"
       }
      }
     },
     "localname": "OperatingLeaseWeightedAverageDiscountRatePercent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfWeightedAverageRemainingLeaseTermAndWeightedAverageDiscountRateDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": {
     "auth_ref": [
      "r376",
      "r380"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Operating Lease Weighted Average Remaining Lease Term1",
        "terseLabel": "Weighted average remaining lease term"
       }
      }
     },
     "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfWeightedAverageRemainingLeaseTermAndWeightedAverageDiscountRateDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Organization Consolidation And Presentation Of Financial Statements [Abstract]"
       }
      }
     },
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock": {
     "auth_ref": [
      "r1",
      "r119",
      "r174",
      "r337"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows.  Describes procedure if disclosures are provided in more than one note to the financial statements.",
        "label": "Organization Consolidation And Presentation Of Financial Statements Disclosure And Significant Accounting Policies [Text Block]",
        "terseLabel": "Organization and Summary of Significant Accounting Policies"
       }
      }
     },
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_OtherAssetsNoncurrent": {
     "auth_ref": [
      "r37"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10260.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of noncurrent assets classified as other.",
        "label": "Other Assets Noncurrent",
        "terseLabel": "Other assets"
       }
      }
     },
     "localname": "OtherAssetsNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax": {
     "auth_ref": [
      "r58"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossUnaudited": {
       "order": 10040.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.",
        "label": "Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax",
        "terseLabel": "Foreign currency translation adjustments"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTax": {
     "auth_ref": [
      "r65",
      "r68",
      "r70",
      "r75",
      "r240",
      "r356",
      "r361",
      "r362",
      "r405",
      "r422"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossUnaudited": {
       "order": 10020.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after tax and reclassification adjustments of other comprehensive income (loss).",
        "label": "Other Comprehensive Income Loss Net Of Tax",
        "terseLabel": "Total other comprehensive income (Loss)",
        "totalLabel": "Total other comprehensive loss"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossUnaudited",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract]",
        "terseLabel": "Other comprehensive income (loss), net of tax:"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OtherLiabilitiesCurrent": {
     "auth_ref": [
      "r7",
      "r8",
      "r41"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10200.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.",
        "label": "Other Liabilities Current",
        "terseLabel": "Other current liabilities"
       }
      }
     },
     "localname": "OtherLiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherLiabilitiesNoncurrent": {
     "auth_ref": [
      "r46"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10140.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.",
        "label": "Other Liabilities Noncurrent",
        "terseLabel": "Other long-term liabilities"
       }
      }
     },
     "localname": "OtherLiabilitiesNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherNonoperatingIncomeExpense": {
     "auth_ref": [
      "r83"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited": {
       "order": 10060.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of income (expense) related to nonoperating activities, classified as other.",
        "label": "Other Nonoperating Income Expense",
        "terseLabel": "Other"
       }
      }
     },
     "localname": "OtherNonoperatingIncomeExpense",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherNonoperatingIncomeExpenseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Other Nonoperating Income Expense [Abstract]",
        "terseLabel": "Other income (expense):"
       }
      }
     },
     "localname": "OtherNonoperatingIncomeExpenseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OtherNonoperatingIncomeExpenseMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Primary financial statement caption encompassing other nonoperating income (expense).",
        "label": "Other Nonoperating Income Expense [Member]",
        "terseLabel": "Other Income (Expense)",
        "verboseLabel": "Other Income, Net"
       }
      }
     },
     "localname": "OtherNonoperatingIncomeExpenseMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain": {
     "auth_ref": [
      "r204"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Provides the categories of debt securities, available-for-sale or held-to-maturity, on which an entity may recognize other than temporary impairments (OTTI) for which a portion related to credit losses has been recognized in earnings and a portion related to all other factors has been recognized in other comprehensive income.",
        "label": "Other Than Temporary Impairment Credit Losses Recognized In Earnings Categories Of Investments [Domain]",
        "terseLabel": "Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments"
       }
      }
     },
     "localname": "OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PaymentsForProceedsFromTenantAllowance": {
     "auth_ref": [
      "r86",
      "r88"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10220.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Net cash outflow or inflow from monetary allowance granted by the landlord to a tenant to entice tenant to move into landlords building which will enable the tenant to prepare the leased premises for tenants occupancy.",
        "label": "Payments For Proceeds From Tenant Allowance",
        "negatedLabel": "Tenant improvements provided by the landlord",
        "verboseLabel": "Tenant improvement allowance"
       }
      }
     },
     "localname": "PaymentsForProceedsFromTenantAllowance",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsOfStockIssuanceCosts": {
     "auth_ref": [
      "r91"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash outflow for cost incurred directly with the issuance of an equity security.",
        "label": "Payments Of Stock Issuance Costs",
        "terseLabel": "Payment of issuance costs"
       }
      }
     },
     "localname": "PaymentsOfStockIssuanceCosts",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireMarketableSecurities": {
     "auth_ref": [
      "r196"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10100.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash outflow for purchase of marketable security.",
        "label": "Payments To Acquire Marketable Securities",
        "negatedLabel": "Purchases of marketable securities"
       }
      }
     },
     "localname": "PaymentsToAcquireMarketableSecurities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": {
     "auth_ref": [
      "r87"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10120.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.",
        "label": "Payments To Acquire Property Plant And Equipment",
        "negatedLabel": "Purchases of property and equipment, net"
       }
      }
     },
     "localname": "PaymentsToAcquirePropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PlanNameAxis": {
     "auth_ref": [
      "r288",
      "r315"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by plan name for share-based payment arrangement.",
        "label": "Plan Name [Axis]",
        "terseLabel": "Plan Name"
       }
      }
     },
     "localname": "PlanNameAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PlanNameDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Plan name for share-based payment arrangement.",
        "label": "Plan Name [Domain]",
        "terseLabel": "Plan Name"
       }
      }
     },
     "localname": "PlanNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PledgedAssetsSeparatelyReportedSecuritiesPledgedUnderLetterOfCreditFacilitiesAtFairValue": {
     "auth_ref": [
      "r394"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The fair value, as of the date of each statement of financial position presented, of securities that are restricted as collateral under letter of credit agreements, and that are reclassified and separately reported in the statement of financial position because the transferee has the right by contract or custom to sell or re-pledge them.",
        "label": "Pledged Assets Separately Reported Securities Pledged Under Letter Of Credit Facilities At Fair Value",
        "terseLabel": "Letter of credit pledged as security"
       }
      }
     },
     "localname": "PledgedAssetsSeparatelyReportedSecuritiesPledgedUnderLetterOfCreditFacilitiesAtFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PreferredStockMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Preferred shares may provide a preferential dividend to the dividend on common stock and may take precedence over common stock in the event of a liquidation. Preferred shares typically represent an ownership interest in the company.",
        "label": "Preferred Stock [Member]",
        "terseLabel": "Preferred Stock"
       }
      }
     },
     "localname": "PreferredStockMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PreferredStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r18"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.",
        "label": "Preferred Stock Par Or Stated Value Per Share",
        "terseLabel": "Preferred stock, par value"
       }
      }
     },
     "localname": "PreferredStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_PreferredStockSharesAuthorized": {
     "auth_ref": [
      "r18"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.",
        "label": "Preferred Stock Shares Authorized",
        "terseLabel": "Preferred stock, shares authorized"
       }
      }
     },
     "localname": "PreferredStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockSharesIssued": {
     "auth_ref": [
      "r18"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.",
        "label": "Preferred Stock Shares Issued",
        "terseLabel": "Preferred stock, shares issued"
       }
      }
     },
     "localname": "PreferredStockSharesIssued",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockSharesOutstanding": {
     "auth_ref": [
      "r18"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.",
        "label": "Preferred Stock Shares Outstanding",
        "terseLabel": "Preferred stock, shares outstanding"
       }
      }
     },
     "localname": "PreferredStockSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockValue": {
     "auth_ref": [
      "r18"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10040.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.",
        "label": "Preferred Stock Value",
        "terseLabel": "Preferred stock value"
       }
      }
     },
     "localname": "PreferredStockValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PrepaidExpenseAndOtherAssetsCurrent": {
     "auth_ref": [
      "r4",
      "r33",
      "r34"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10320.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.",
        "label": "Prepaid Expense And Other Assets Current",
        "terseLabel": "Prepaid expenses and other current assets"
       }
      }
     },
     "localname": "PrepaidExpenseAndOtherAssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfCommonStock": {
     "auth_ref": [
      "r89"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10050.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow from the additional capital contribution to the entity.",
        "label": "Proceeds From Issuance Of Common Stock",
        "terseLabel": "Proceeds from issuance of common stock, net",
        "verboseLabel": "Net cash proceeds received"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfLongTermDebt": {
     "auth_ref": [
      "r90"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.",
        "label": "Proceeds From Issuance Of Long Term Debt",
        "verboseLabel": "Net proceeds from the initial term loan"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfLongTermDebt",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfWarrants": {
     "auth_ref": [
      "r89"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10060.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).",
        "label": "Proceeds From Issuance Of Warrants",
        "terseLabel": "Proceeds from exercise of warrants"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfWarrants",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOrSaleOfEquity": {
     "auth_ref": [
      "r89"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.",
        "label": "Proceeds From Issuance Or Sale Of Equity",
        "verboseLabel": "Net cash proceeds received from issuance or sale of equity"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOrSaleOfEquity",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities": {
     "auth_ref": [
      "r84",
      "r85",
      "r196"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10110.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Proceeds From Sale And Maturity Of Available For Sale Securities",
        "terseLabel": "Proceeds from maturities and redemptions of marketable securities"
       }
      }
     },
     "localname": "ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromStockPlans": {
     "auth_ref": [
      "r89"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10080.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow associated with the amount received from the stock plan during the period.",
        "label": "Proceeds From Stock Plans",
        "terseLabel": "Proceeds from Employee Stock Purchase Plan"
       }
      }
     },
     "localname": "ProceedsFromStockPlans",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromWarrantExercises": {
     "auth_ref": [
      "r89"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow associated with the amount received from holders exercising their stock warrants.",
        "label": "Proceeds From Warrant Exercises",
        "negatedLabel": "Warrants exercised"
       }
      }
     },
     "localname": "ProceedsFromWarrantExercises",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfChangesInFairValueWarrantLiabilityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProductMember": {
     "auth_ref": [
      "r269"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Article or substance produced by nature, labor or machinery.",
        "label": "Product [Member]",
        "terseLabel": "Product"
       }
      }
     },
     "localname": "ProductMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentByTypeAxis": {
     "auth_ref": [
      "r36",
      "r218"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of long-lived, physical assets used to produce goods and services and not intended for resale.",
        "label": "Property Plant And Equipment By Type [Axis]",
        "terseLabel": "Long-Lived Tangible Asset"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentByTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentNet": {
     "auth_ref": [
      "r11",
      "r12",
      "r218",
      "r419"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10220.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.",
        "label": "Property Plant And Equipment Net",
        "terseLabel": "Property and equipment, net"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentNet",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentTypeDomain": {
     "auth_ref": [
      "r11",
      "r217"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Listing of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.",
        "label": "Property Plant And Equipment Type [Domain]",
        "terseLabel": "Long-Lived Tangible Asset"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PurchaseObligation": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.",
        "label": "Purchase Obligation",
        "terseLabel": "Non-cancelable purchase and other commitments"
       }
      }
     },
     "localname": "PurchaseObligation",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ResearchAndDevelopmentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Research And Development [Abstract]"
       }
      }
     },
     "localname": "ResearchAndDevelopmentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_ResearchAndDevelopmentExpense": {
     "auth_ref": [
      "r325",
      "r464"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited": {
       "order": 10110.0,
       "parentTag": "us-gaap_CostsAndExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.",
        "label": "Research And Development Expense",
        "terseLabel": "Research and development"
       }
      }
     },
     "localname": "ResearchAndDevelopmentExpense",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ResearchAndDevelopmentExpenseMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Primary financial statement caption in which the reported facts about research and development expense have been included.",
        "label": "Research And Development Expense [Member]",
        "terseLabel": "Research and Development"
       }
      }
     },
     "localname": "ResearchAndDevelopmentExpenseMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RestrictedCashAndCashEquivalentsNoncurrent": {
     "auth_ref": [
      "r6",
      "r13",
      "r99",
      "r104",
      "r454"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesReconciliationOfCashCashEquivalentsAndRestrictedCashDetail": {
       "order": 10020.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
       "weight": 1.0
      },
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10250.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Restricted Cash And Cash Equivalents Noncurrent",
        "terseLabel": "Restricted cash"
       }
      }
     },
     "localname": "RestrictedCashAndCashEquivalentsNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesReconciliationOfCashCashEquivalentsAndRestrictedCashDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestrictedStockUnitsRSUMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met.",
        "label": "Restricted Stock Units R S U [Member]",
        "terseLabel": "Restricted Stock Units (RSUs)"
       }
      }
     },
     "localname": "RestrictedStockUnitsRSUMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RetainedEarningsAccumulatedDeficit": {
     "auth_ref": [
      "r21",
      "r247",
      "r319",
      "r417",
      "r433",
      "r435"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10090.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "label": "Retained Earnings Accumulated Deficit",
        "terseLabel": "Accumulated deficit"
       }
      }
     },
     "localname": "RetainedEarningsAccumulatedDeficit",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RetainedEarningsMember": {
     "auth_ref": [
      "r120",
      "r121",
      "r122",
      "r124",
      "r130",
      "r132",
      "r207",
      "r316",
      "r317",
      "r318",
      "r326",
      "r327",
      "r430",
      "r432"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "label": "Retained Earnings [Member]",
        "terseLabel": "Accumulated Deficit"
       }
      }
     },
     "localname": "RetainedEarningsMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax": {
     "auth_ref": [
      "r176",
      "r177",
      "r181",
      "r186",
      "r187",
      "r191",
      "r192",
      "r194",
      "r266",
      "r267",
      "r397"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited": {
       "order": 10070.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.",
        "label": "Revenue From Contract With Customer Excluding Assessed Tax",
        "terseLabel": "Total revenues",
        "verboseLabel": "Revenue recognized"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerExcludingAssessedTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerMember": {
     "auth_ref": [
      "r169",
      "r194"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Revenue from satisfaction of performance obligation by transferring promised product and service to customer, when it serves as benchmark in concentration of risk calculation.",
        "label": "Revenue From Contract With Customer [Member]",
        "terseLabel": "Revenue"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerPolicyTextBlock": {
     "auth_ref": [
      "r106",
      "r258",
      "r259",
      "r260",
      "r261",
      "r262",
      "r263",
      "r264",
      "r265",
      "r271"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for revenue from contract with customer.",
        "label": "Revenue From Contract With Customer Policy [Text Block]",
        "terseLabel": "Revenue Recognition"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerTextBlock": {
     "auth_ref": [
      "r250",
      "r251",
      "r252",
      "r253",
      "r254",
      "r255",
      "r256",
      "r257",
      "r268",
      "r271"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.",
        "label": "Revenue From Contract With Customer [Text Block]",
        "terseLabel": "Revenue Recognition"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognition"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RevenueRecognitionAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Revenue Recognition [Abstract]"
       }
      }
     },
     "localname": "RevenueRecognitionAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevenuesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Revenues [Abstract]",
        "terseLabel": "Revenues:"
       }
      }
     },
     "localname": "RevenuesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SaleOfStockNameOfTransactionDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sale of the entity's stock, including, but not limited to, initial public offering (IPO) and private placement.",
        "label": "Sale Of Stock Name Of Transaction [Domain]",
        "terseLabel": "Sale of Stock"
       }
      }
     },
     "localname": "SaleOfStockNameOfTransactionDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock": {
     "auth_ref": [
      "r151"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.",
        "label": "Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block]",
        "terseLabel": "Outstanding Stock Options and Stock Awards Excluded from Calculation of Net Loss Per Share"
       }
      }
     },
     "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureNetIncomeLossPerShareTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.",
        "label": "Schedule Of Available For Sale Securities Reconciliation Table [Text Block]",
        "terseLabel": "Summary of Cash, Cash Equivalents and Marketable Securities"
       }
      }
     },
     "localname": "ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable": {
     "auth_ref": [
      "r330"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations.",
        "label": "Schedule Of Collaborative Arrangements And Noncollaborative Arrangement Transactions [Table]",
        "terseLabel": "Schedule Of Collaborative Arrangements And Noncollaborative Arrangement Transactions [Table]"
       }
      }
     },
     "localname": "ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock": {
     "auth_ref": [
      "r312"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit.",
        "label": "Schedule Of Compensation Cost For Share Based Payment Arrangements Allocation Of Share Based Compensation Costs By Plan Table [Text Block]",
        "terseLabel": "Stock-Based Compensation Expense"
       }
      }
     },
     "localname": "ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualShareBasedPaymentsTable": {
     "auth_ref": [
      "r272",
      "r273",
      "r288",
      "r315"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule, table or text reflecting equity-based arrangements (such as stock or unit options and stock or unit awards) with individual employees, which are generally based on employment contracts between the entity and one or more selected officers or key employees, and which contain a promise by the employer to pay certain equity-based awards at future dates, sometimes including a period after retirement, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Disclosure also typically includes the amount of related compensation expense recognized during the reporting period, the number of shares or units issued during the period under such arrangements, and the carrying amount as of the balance sheet date of the related liability.",
        "label": "Schedule Of Deferred Compensation Arrangement With Individual Share Based Payments [Table]",
        "terseLabel": "Schedule Of Deferred Compensation Arrangement With Individual Share Based Payments [Table]"
       }
      }
     },
     "localname": "ScheduleOfDeferredCompensationArrangementWithIndividualShareBasedPaymentsTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": {
     "auth_ref": [
      "r150"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.",
        "label": "Schedule Of Earnings Per Share Basic And Diluted Table [Text Block]",
        "terseLabel": "Computation of Basic and Diluted Net Income (Loss) Per Share"
       }
      }
     },
     "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureNetIncomeLossPerShareTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock": {
     "auth_ref": [
      "r341",
      "r342"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).",
        "label": "Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis Table [Text Block]",
        "terseLabel": "Fair Value Hierarchy for Financial Assets and Liabilities Measured at Fair Value on Recurring Basis"
       }
      }
     },
     "localname": "ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueMeasurementsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfInventoryCurrentTableTextBlock": {
     "auth_ref": [
      "r9",
      "r30",
      "r31",
      "r32"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.",
        "label": "Schedule Of Inventory Current Table [Text Block]",
        "terseLabel": "Summary of Inventories"
       }
      }
     },
     "localname": "ScheduleOfInventoryCurrentTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureInventoriesNetTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingTableTextBlock": {
     "auth_ref": [
      "r305"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "label": "Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Table [Text Block]",
        "terseLabel": "Option Activity under Stock-Based Compensation Plans"
       }
      }
     },
     "localname": "ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": {
     "auth_ref": [
      "r288",
      "r315"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about share-based payment arrangement.",
        "label": "Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]",
        "terseLabel": "Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]"
       }
      }
     },
     "localname": "ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfPerformanceBasedRestrictedStockUnitDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock": {
     "auth_ref": [
      "r292"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.",
        "label": "Schedule Of Share Based Compensation Restricted Stock Units Award Activity Table [Text Block]",
        "terseLabel": "Summary of Restricted Stock Units Activity"
       }
      }
     },
     "localname": "ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock": {
     "auth_ref": [
      "r307"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.",
        "label": "Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block]",
        "terseLabel": "Fair Value-Based Measurements and Weighted-Average Assumptions"
       }
      }
     },
     "localname": "ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfStockByClassTable": {
     "auth_ref": [
      "r48",
      "r107",
      "r160",
      "r161",
      "r237",
      "r238",
      "r239",
      "r241",
      "r242",
      "r243",
      "r244",
      "r245",
      "r246",
      "r247"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule detailing information related to equity by class of stock. Class of stock includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. It also includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity.",
        "label": "Schedule Of Stock By Class [Table]",
        "terseLabel": "Schedule Of Stock By Class [Table]"
       }
      }
     },
     "localname": "ScheduleOfStockByClassTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsSummaryOfCommonStockWarrantsOutstandingDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock": {
     "auth_ref": [
      "r248",
      "r286"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.",
        "label": "Schedule Of Stockholders Equity Note Warrants Or Rights [Text Block]",
        "terseLabel": "Summary of Common Stock Warrants Outstanding"
       }
      }
     },
     "localname": "ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock": {
     "auth_ref": [
      "r152"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit).",
        "label": "Schedule Of Weighted Average Number Of Shares Table [Text Block]",
        "terseLabel": "Summary of Weighted Average Remaining Lease Term and Weighted Average Discount Rate"
       }
      }
     },
     "localname": "ScheduleOfWeightedAverageNumberOfSharesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SecuredLongTermDebt": {
     "auth_ref": [
      "r45"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying amount of collateralized debt obligations with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion. Obligations include, but not limited to, mortgage loans, chattel loans, and other borrowings secured by assets.",
        "label": "Secured Long Term Debt",
        "verboseLabel": "Current borrowing capacity"
       }
      }
     },
     "localname": "SecuredLongTermDebt",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue": {
     "auth_ref": [
      "r394",
      "r395"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions.",
        "label": "Security Owned And Pledged As Collateral Fair Value",
        "terseLabel": "Collateralized certificate of deposit"
       }
      }
     },
     "localname": "SecurityOwnedAndPledgedAsCollateralFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SellingGeneralAndAdministrativeExpense": {
     "auth_ref": [
      "r80"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited": {
       "order": 10120.0,
       "parentTag": "us-gaap_CostsAndExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.",
        "label": "Selling General And Administrative Expense",
        "terseLabel": "Selling, general and administrative"
       }
      }
     },
     "localname": "SellingGeneralAndAdministrativeExpense",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SellingGeneralAndAdministrativeExpensesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Primary financial statement caption encompassing selling, general and administrative expense.",
        "label": "Selling General And Administrative Expenses [Member]",
        "terseLabel": "Selling, General and Administrative"
       }
      }
     },
     "localname": "SellingGeneralAndAdministrativeExpensesMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensation": {
     "auth_ref": [
      "r96"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited": {
       "order": 10190.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of noncash expense for share-based payment arrangement.",
        "label": "Share Based Compensation",
        "terseLabel": "Stock compensation expense"
       }
      }
     },
     "localname": "ShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareBasedCompensationAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Share Based Compensation [Abstract]"
       }
      }
     },
     "localname": "ShareBasedCompensationAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": {
     "auth_ref": [
      "r289"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1",
        "terseLabel": "Options vesting period"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod": {
     "auth_ref": [
      "r297"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period",
        "negatedLabel": "Forfeited"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfPerformanceBasedRestrictedStockUnitDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r302"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value",
        "terseLabel": "Forfeited"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfPerformanceBasedRestrictedStockUnitDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": {
     "auth_ref": [
      "r300"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period",
        "terseLabel": "Granted"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfPerformanceBasedRestrictedStockUnitDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r300"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value",
        "verboseLabel": "Granted"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfPerformanceBasedRestrictedStockUnitDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": {
     "auth_ref": [
      "r299"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number",
        "periodEndLabel": "Non-vested, Ending Balance",
        "periodStartLabel": "Non-vested, Beginning Balance"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfPerformanceBasedRestrictedStockUnitDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Roll Forward",
        "terseLabel": "Number of Shares"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfPerformanceBasedRestrictedStockUnitDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r299"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value",
        "periodEndLabel": "Non-vested, Ending Balance",
        "periodStartLabel": "Non-vested, Beginning Balance"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfPerformanceBasedRestrictedStockUnitDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value Roll Forward",
        "terseLabel": "Weighted-Average Grant-Date Fair Value Per Share"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfPerformanceBasedRestrictedStockUnitDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod": {
     "auth_ref": [
      "r301"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period",
        "negatedLabel": "Vested"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r301"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value",
        "terseLabel": "Vested"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate": {
     "auth_ref": [
      "r309"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate",
        "terseLabel": "Volatility"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate": {
     "auth_ref": [
      "r310"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The risk-free interest rate assumption that is used in valuing an option on its own shares.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate",
        "terseLabel": "Risk-free interest rate"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award [Line Items]",
        "terseLabel": "Share Based Compensation Arrangement By Share Based Payment Award [Line Items]"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfPerformanceBasedRestrictedStockUnitDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant": {
     "auth_ref": [
      "r315"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant",
        "terseLabel": "Shares issued to employees"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber": {
     "auth_ref": [
      "r295"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number",
        "terseLabel": "Exercisable at March 31, 2021"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice": {
     "auth_ref": [
      "r295"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price",
        "terseLabel": "Exercisable at March 31, 2021"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod": {
     "auth_ref": [
      "r298"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period",
        "negatedLabel": "Options cancelled"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod": {
     "auth_ref": [
      "r297"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period",
        "negatedLabel": "Options cancelled"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Gross number of share options (or share units) granted during the period.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross",
        "terseLabel": "Options granted"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r303"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value",
        "terseLabel": "Weighted-average fair value per share"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue": {
     "auth_ref": [
      "r315"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value",
        "terseLabel": "Balance at March 31, 2021"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber": {
     "auth_ref": [
      "r294",
      "r315"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of options outstanding, including both vested and non-vested options.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Roll Forward",
        "terseLabel": "Shares Underlying Outstanding Options"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice": {
     "auth_ref": [
      "r293"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Rollforward",
        "terseLabel": "Weighted-Average Exercise Price Per Share"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice": {
     "auth_ref": [
      "r306"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price",
        "terseLabel": "Vested and expected to vest at March 31, 2021"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue": {
     "auth_ref": [
      "r304"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value",
        "terseLabel": "Vested and expected to vest at March 31, 2021"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber": {
     "auth_ref": [
      "r305"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number",
        "terseLabel": "Vested and expected to vest at March 31, 2021"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": {
     "auth_ref": [
      "r286",
      "r291"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Award under share-based payment arrangement.",
        "label": "Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain]",
        "terseLabel": "Award Type"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfPerformanceBasedRestrictedStockUnitDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average price at which option holders acquired shares when converting their stock options into shares.",
        "label": "Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price",
        "terseLabel": "Options exercised"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.",
        "label": "Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price",
        "terseLabel": "Options cancelled"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.",
        "label": "Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price",
        "terseLabel": "Options cancelled"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.",
        "label": "Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price",
        "terseLabel": "Options granted"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1": {
     "auth_ref": [
      "r312"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cost expensed and capitalized for award under share-based payment arrangement.",
        "label": "Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1",
        "verboseLabel": "Stock-based compensation expense"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod": {
     "auth_ref": [
      "r290"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period",
        "terseLabel": "Expiration period"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1": {
     "auth_ref": [
      "r308",
      "r320"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1",
        "terseLabel": "Expected life (in years)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1": {
     "auth_ref": [
      "r315"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.",
        "label": "Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1",
        "terseLabel": "Exercisable at March 31, 2021"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1": {
     "auth_ref": [
      "r315"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1",
        "terseLabel": "Exercisable at March 31, 2021"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2": {
     "auth_ref": [
      "r305"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2",
        "terseLabel": "Balance at March 31, 2021"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1": {
     "auth_ref": [
      "r305"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "label": "Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1",
        "terseLabel": "Vested and expected to vest at March 31, 2021"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_SharesOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares issued which are neither cancelled nor held in the treasury.",
        "label": "Shares Outstanding",
        "periodEndLabel": "Ending Balances (in shares)",
        "periodStartLabel": "Beginning Balances (in shares)"
       }
      }
     },
     "localname": "SharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StatementClassOfStockAxis": {
     "auth_ref": [
      "r17",
      "r18",
      "r19",
      "r107",
      "r109",
      "r136",
      "r141",
      "r142",
      "r146",
      "r150",
      "r160",
      "r161",
      "r162",
      "r206",
      "r240",
      "r354"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by the different classes of stock of the entity.",
        "label": "Statement Class Of Stock [Axis]",
        "terseLabel": "Class of Stock"
       }
      }
     },
     "localname": "StatementClassOfStockAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOutstandingStockOptionsAndStockAwardsExcludedFromCalculationOfNetLossPerShareDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementEquityComponentsAxis": {
     "auth_ref": [
      "r51",
      "r120",
      "r121",
      "r122",
      "r124",
      "r130",
      "r132",
      "r159",
      "r207",
      "r240",
      "r247",
      "r316",
      "r317",
      "r318",
      "r326",
      "r327",
      "r356",
      "r357",
      "r358",
      "r359",
      "r360",
      "r362",
      "r430",
      "r431",
      "r432"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by component of equity.",
        "label": "Statement Equity Components [Axis]",
        "terseLabel": "Additional Paid-in Capital"
       }
      }
     },
     "localname": "StatementEquityComponentsAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsSummaryOfCommonStockWarrantsOutstandingDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOutstandingStockOptionsAndStockAwardsExcludedFromCalculationOfNetLossPerShareDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Statement [Line Items]",
        "terseLabel": "Statement [Line Items]"
       }
      }
     },
     "localname": "StatementLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionTables",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfCashFlowsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement Of Cash Flows [Abstract]"
       }
      }
     },
     "localname": "StatementOfCashFlowsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfFinancialPositionAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement Of Financial Position [Abstract]"
       }
      }
     },
     "localname": "StatementOfFinancialPositionAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement Of Income And Comprehensive Income [Abstract]"
       }
      }
     },
     "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement Of Stockholders Equity [Abstract]"
       }
      }
     },
     "localname": "StatementOfStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementTable": {
     "auth_ref": [
      "r120",
      "r121",
      "r122",
      "r159",
      "r397"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed.",
        "label": "Statement [Table]",
        "terseLabel": "Statement [Table]"
       }
      }
     },
     "localname": "StatementTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionTables",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities": {
     "auth_ref": [
      "r50",
      "r240",
      "r241",
      "r247"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares issued during the period as a result of the conversion of convertible securities.",
        "label": "Stock Issued During Period Shares Conversion Of Convertible Securities",
        "terseLabel": "Stock Issued During Period, Shares, Conversion of Convertible Securities"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans": {
     "auth_ref": [
      "r18",
      "r19",
      "r240",
      "r247"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares issued during the period as a result of an employee stock purchase plan.",
        "label": "Stock Issued During Period Shares Employee Stock Purchase Plans",
        "terseLabel": "Issuance of common stock under Employee Stock Purchase Plan (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesNewIssues": {
     "auth_ref": [
      "r18",
      "r19",
      "r240",
      "r247"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of new stock issued during the period.",
        "label": "Stock Issued During Period Shares New Issues",
        "terseLabel": "Issuance of common stock, net of issuance costs, in conjunction with an At Market Sales Agreement (in shares)",
        "verboseLabel": "Issuance of common stock and preferred stock (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesNewIssues",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised": {
     "auth_ref": [
      "r18",
      "r19",
      "r240",
      "r247",
      "r296"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of share options (or share units) exercised during the current period.",
        "label": "Stock Issued During Period Shares Stock Options Exercised",
        "negatedLabel": "Options exercised"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesStockOptionsExercised",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationOptionActivityUnderStockBasedCompensationPlansDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities": {
     "auth_ref": [
      "r51",
      "r240",
      "r247"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The gross value of stock issued during the period upon the conversion of convertible securities.",
        "label": "Stock Issued During Period Value Conversion Of Convertible Securities",
        "terseLabel": "Conversion of preferred stock"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueConversionOfConvertibleSecurities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan": {
     "auth_ref": [
      "r18",
      "r19",
      "r240",
      "r247"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate change in value for stock issued during the period as a result of employee stock purchase plan.",
        "label": "Stock Issued During Period Value Employee Stock Purchase Plan",
        "terseLabel": "Issuance of common stock under Employee Stock Purchase Plan"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueEmployeeStockPurchasePlan",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueNewIssues": {
     "auth_ref": [
      "r18",
      "r19",
      "r240",
      "r247"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.",
        "label": "Stock Issued During Period Value New Issues",
        "terseLabel": "Issuance of common stock, net of issuance costs, in conjunction with an At Market Sales Agreement"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueNewIssues",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquity": {
     "auth_ref": [
      "r19",
      "r23",
      "r24",
      "r109",
      "r195",
      "r206",
      "r354"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets": {
       "order": 10030.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.",
        "label": "Stockholders Equity",
        "periodEndLabel": "Ending Balances",
        "periodStartLabel": "Beginning Balances",
        "totalLabel": "Total stockholders\u2019 equity"
       }
      }
     },
     "localname": "StockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Stockholders Equity [Abstract]",
        "terseLabel": "Stockholders\u2019 equity:"
       }
      }
     },
     "localname": "StockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockholdersEquityNoteDisclosureTextBlock": {
     "auth_ref": [
      "r108",
      "r247",
      "r249"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.",
        "label": "Stockholders Equity Note Disclosure [Text Block]",
        "terseLabel": "Common Stock, Preferred Stock and Warrants"
       }
      }
     },
     "localname": "StockholdersEquityNoteDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrants"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SubleaseIncome": {
     "auth_ref": [
      "r374",
      "r380"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited": {
       "order": 10040.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of sublease income excluding finance and operating lease expense.",
        "label": "Sublease Income",
        "terseLabel": "Sublease income"
       }
      }
     },
     "localname": "SubleaseIncome",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SubsequentEventLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.",
        "label": "Subsequent Event [Line Items]",
        "terseLabel": "Subsequent Event [Line Items]"
       }
      }
     },
     "localname": "SubsequentEventLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SubsequentEventMember": {
     "auth_ref": [
      "r363",
      "r382"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Identifies event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event [Member]",
        "terseLabel": "Subsequent Event"
       }
      }
     },
     "localname": "SubsequentEventMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SubsequentEventTable": {
     "auth_ref": [
      "r363",
      "r382"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Discloses pertinent information about one or more significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued.",
        "label": "Subsequent Event [Table]",
        "terseLabel": "Subsequent Event [Table]"
       }
      }
     },
     "localname": "SubsequentEventTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SubsequentEventTypeAxis": {
     "auth_ref": [
      "r363",
      "r382"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event Type [Axis]",
        "terseLabel": "Subsequent Event Type"
       }
      }
     },
     "localname": "SubsequentEventTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SubsequentEventTypeDomain": {
     "auth_ref": [
      "r363",
      "r382"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event Type [Domain]",
        "terseLabel": "Subsequent Event Type"
       }
      }
     },
     "localname": "SubsequentEventTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SubsequentEventsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Subsequent Events [Abstract]"
       }
      }
     },
     "localname": "SubsequentEventsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_SubsequentEventsTextBlock": {
     "auth_ref": [
      "r381",
      "r383"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.",
        "label": "Subsequent Events [Text Block]",
        "terseLabel": "Subsequent Event"
       }
      }
     },
     "localname": "SubsequentEventsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEvent"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SubsidiarySaleOfStockAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of sale of the entity's stock.",
        "label": "Subsidiary Sale Of Stock [Axis]",
        "terseLabel": "Sale of Stock"
       }
      }
     },
     "localname": "SubsidiarySaleOfStockAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureEquityPlansAndStockBasedCompensationFairValueBasedMeasurementsAndWeightedAverageAssumptionsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SupplementalCashFlowInformationAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Supplemental Cash Flow Information [Abstract]",
        "terseLabel": "Supplemental disclosure of cash flow information"
       }
      }
     },
     "localname": "SupplementalCashFlowInformationAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_TypeOfArrangementAxis": {
     "auth_ref": [
      "r330"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations.",
        "label": "Type Of Arrangement [Axis]",
        "terseLabel": "Collaborative Arrangement and Arrangement Other than Collaborative"
       }
      }
     },
     "localname": "TypeOfArrangementAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCollaborationDevelopmentAndSupplyAgreementsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_USGovernmentAgenciesDebtSecuritiesMember": {
     "auth_ref": [
      "r275",
      "r409"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debentures, notes, and other debt securities issued by US government agencies, for example, but not limited to, Government National Mortgage Association (GNMA or Ginnie Mae). Excludes US treasury securities and debt issued by government-sponsored Enterprises (GSEs), for example, but is not limited to, Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac), Federal National Mortgage Association (FNMA or Fannie Mae), and the Federal Home Loan Bank (FHLB).",
        "label": "U S Government Agencies Debt Securities [Member]",
        "terseLabel": "U.S. Government Agency Securities"
       }
      }
     },
     "localname": "USGovernmentAgenciesDebtSecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_USTreasurySecuritiesMember": {
     "auth_ref": [
      "r275",
      "r282",
      "r409"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "This category includes information about debt securities issued by the United States Department of the Treasury and backed by the United States government. Such securities primarily consist of treasury bills (short-term maturities - one year or less), treasury notes (intermediate term maturities - two to ten years), and treasury bonds (long-term maturities - ten to thirty years).",
        "label": "U S Treasury Securities [Member]",
        "terseLabel": "U.S. Treasuries"
       }
      }
     },
     "localname": "USTreasurySecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCashCashEquivalentsRestrictedCashAndMarketableSecuritiesSummaryOfCashCashEquivalentsAndMarketableSecuritiesDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic": {
     "auth_ref": [
      "r144",
      "r147",
      "r148"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail": {
       "order": 10070.0,
       "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of undistributed earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method.",
        "label": "Undistributed Earnings Loss Allocated To Participating Securities Basic",
        "terseLabel": "Less: undistributed earnings allocated to participating securities"
       }
      }
     },
     "localname": "UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UseOfEstimates": {
     "auth_ref": [
      "r163",
      "r164",
      "r165",
      "r166",
      "r171",
      "r172",
      "r173"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.",
        "label": "Use Of Estimates",
        "terseLabel": "Use of Estimates"
       }
      }
     },
     "localname": "UseOfEstimates",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ValuationAllowancesAndReservesDomain": {
     "auth_ref": [
      "r112",
      "r113",
      "r114",
      "r115",
      "r116"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Valuation and qualifying accounts and reserves.",
        "label": "Valuation Allowances And Reserves [Domain]",
        "terseLabel": "SEC Schedule, 12-09, Valuation Allowances and Reserves"
       }
      }
     },
     "localname": "ValuationAllowancesAndReservesDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueAllowanceAndReserveCategoriesDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ValuationAllowancesAndReservesTypeAxis": {
     "auth_ref": [
      "r112",
      "r113",
      "r114",
      "r115",
      "r116"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by valuation and qualifying accounts and reserves.",
        "label": "Valuation Allowances And Reserves Type [Axis]",
        "terseLabel": "Chargebacks, distribution fees, discounts and other fees"
       }
      }
     },
     "localname": "ValuationAllowancesAndReservesTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureRevenueRecognitionSummaryOfProductRevenueAllowanceAndReserveCategoriesDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_WarrantMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Security that gives the holder the right to purchase shares of stock in accordance with the terms of the instrument, usually upon payment of a specified amount.",
        "label": "Warrant [Member]",
        "terseLabel": "Warrants",
        "verboseLabel": "Warrant Liability"
       }
      }
     },
     "localname": "WarrantMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsAdditionalInformationDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureCommonStockPreferredStockAndWarrantsSummaryOfCommonStockWarrantsOutstandingDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureOutstandingStockOptionsAndStockAwardsExcludedFromCalculationOfNetLossPerShareDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_WarrantsAndRightsOutstandingTerm": {
     "auth_ref": [
      "r346"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Warrants And Rights Outstanding Term",
        "terseLabel": "Expected term"
       }
      }
     },
     "localname": "WarrantsAndRightsOutstandingTerm",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureSummaryOfAssumptionsToEstimateFairValueOfWarrantLiabilityDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Weighted Average Number Diluted Shares Outstanding Adjustment [Abstract]",
        "terseLabel": "Effect of dilutive shares:"
       }
      }
     },
     "localname": "WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": {
     "auth_ref": [
      "r135",
      "r150"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.",
        "label": "Weighted Average Number Of Diluted Shares Outstanding",
        "terseLabel": "Diluted",
        "totalLabel": "Weighted average common stock outstanding, diluted"
       }
      }
     },
     "localname": "WeightedAverageNumberOfDilutedSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": {
     "auth_ref": [
      "r133",
      "r150"
     ],
     "calculation": {
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail": {
       "order": 10010.0,
       "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding",
       "weight": 1.0
      }
     },
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.",
        "label": "Weighted Average Number Of Shares Outstanding Basic",
        "terseLabel": "Basic",
        "verboseLabel": "Weighted average common stock outstanding, basic"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingBasic",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/DisclosureComputationOfBasicAndDilutedNetIncomeLossPerShareDetail",
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Weighted Average Number Of Shares Outstanding Diluted Disclosure Items [Abstract]",
        "terseLabel": "Weighted-average shares used in computing net income (loss) per share attributable to common stockholders:"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.dynavax.com/20210331/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited"
     ],
     "xbrltype": "stringItemType"
    }
   },
   "unitCount": 7
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760"
  },
  "r1": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "205",
   "URI": "http://asc.fasb.org/topic&trid=2122149"
  },
  "r10": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r100": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4297-108586"
  },
  "r101": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586"
  },
  "r102": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4313-108586"
  },
  "r103": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586"
  },
  "r104": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=SL98516268-108586"
  },
  "r105": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790"
  },
  "r106": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18823-107790"
  },
  "r107": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(d))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r108": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(e)(1))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r109": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(g)(1)(ii))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r11": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(13))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r110": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(m)(1)(iii))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r111": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(e),(f))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r112": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.12-09(Column B))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690"
  },
  "r113": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.12-09(Column C(1)))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690"
  },
  "r114": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.12-09(Column C(2)))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690"
  },
  "r115": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.12-09(Column D))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690"
  },
  "r116": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.12-09(Column E))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690"
  },
  "r117": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.12-09(ColumnA))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690"
  },
  "r118": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.12-09)",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690"
  },
  "r119": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "235",
   "URI": "http://asc.fasb.org/topic&trid=2122369"
  },
  "r12": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(14))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r120": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "23",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21914-107793"
  },
  "r121": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21930-107793"
  },
  "r122": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21711-107793"
  },
  "r123": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(2)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794"
  },
  "r124": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(3)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794"
  },
  "r125": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794"
  },
  "r126": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794"
  },
  "r127": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794"
  },
  "r128": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22595-107794"
  },
  "r129": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794"
  },
  "r13": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(17))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r130": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794"
  },
  "r131": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22658-107794"
  },
  "r132": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794"
  },
  "r133": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1448-109256"
  },
  "r134": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1377-109256"
  },
  "r135": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1505-109256"
  },
  "r136": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1252-109256"
  },
  "r137": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1707-109256"
  },
  "r138": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "23",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1757-109256"
  },
  "r139": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "26",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1828-109256"
  },
  "r14": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(19))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r140": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1500-109256"
  },
  "r141": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1278-109256"
  },
  "r142": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "55",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e2626-109256"
  },
  "r143": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256"
  },
  "r144": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256"
  },
  "r145": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256"
  },
  "r146": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256"
  },
  "r147": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "65",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e2793-109256"
  },
  "r148": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "66",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e2814-109256"
  },
  "r149": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1337-109256"
  },
  "r15": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(20))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r150": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r151": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r152": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r153": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257"
  },
  "r154": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537"
  },
  "r155": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=120380238&loc=d3e3842-109258"
  },
  "r156": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "52",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=120380238&loc=d3e4984-109258"
  },
  "r157": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "260",
   "URI": "http://asc.fasb.org/topic&trid=2144383"
  },
  "r158": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "270",
   "URI": "http://asc.fasb.org/extlink&oid=116846552&loc=d3e543-108305"
  },
  "r159": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "272",
   "URI": "http://asc.fasb.org/extlink&oid=6828210&loc=d3e70191-108054"
  },
  "r16": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(22))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r160": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "272",
   "URI": "http://asc.fasb.org/extlink&oid=6828210&loc=d3e70229-108054"
  },
  "r161": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "272",
   "URI": "http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055"
  },
  "r162": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "272",
   "URI": "http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055"
  },
  "r163": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592"
  },
  "r164": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592"
  },
  "r165": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6161-108592"
  },
  "r166": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6191-108592"
  },
  "r167": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6327-108592"
  },
  "r168": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592"
  },
  "r169": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592"
  },
  "r17": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(27))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r170": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592"
  },
  "r171": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6061-108592"
  },
  "r172": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6132-108592"
  },
  "r173": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6143-108592"
  },
  "r174": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "275",
   "URI": "http://asc.fasb.org/topic&trid=2134479"
  },
  "r175": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599"
  },
  "r176": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599"
  },
  "r177": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599"
  },
  "r178": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599"
  },
  "r179": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599"
  },
  "r18": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(28))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r180": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599"
  },
  "r181": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599"
  },
  "r182": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599"
  },
  "r183": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599"
  },
  "r184": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599"
  },
  "r185": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "31",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599"
  },
  "r186": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599"
  },
  "r187": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599"
  },
  "r188": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599"
  },
  "r189": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599"
  },
  "r19": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(29))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r190": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599"
  },
  "r191": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "40",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599"
  },
  "r192": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "41",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599"
  },
  "r193": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "41",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599"
  },
  "r194": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "42",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599"
  },
  "r195": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 4.E)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707"
  },
  "r196": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121553693&loc=d3e26853-111562"
  },
  "r197": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121553693&loc=d3e26626-111562"
  },
  "r198": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563"
  },
  "r199": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563"
  },
  "r2": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765"
  },
  "r20": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r200": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563"
  },
  "r201": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563"
  },
  "r202": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563"
  },
  "r203": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563"
  },
  "r204": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27340-111563"
  },
  "r205": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=SL6284393-111563"
  },
  "r206": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571"
  },
  "r207": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437"
  },
  "r208": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454"
  },
  "r209": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "330",
   "URI": "http://asc.fasb.org/extlink&oid=116847112&loc=d3e4492-108314"
  },
  "r21": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(3))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r210": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "330",
   "URI": "http://asc.fasb.org/extlink&oid=116847112&loc=d3e4556-108314"
  },
  "r211": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 5.BB)",
   "Topic": "330",
   "URI": "http://asc.fasb.org/extlink&oid=27011343&loc=d3e100047-122729"
  },
  "r212": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 5.BB)",
   "Topic": "330",
   "URI": "http://asc.fasb.org/extlink&oid=27011343&loc=d3e100047-122729"
  },
  "r213": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "330",
   "URI": "http://asc.fasb.org/topic&trid=2126998"
  },
  "r214": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266"
  },
  "r215": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975"
  },
  "r216": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r217": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r218": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r219": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230"
  },
  "r22": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(4))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r220": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "440",
   "URI": "http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308"
  },
  "r221": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "440",
   "URI": "http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308"
  },
  "r222": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "440",
   "URI": "http://asc.fasb.org/topic&trid=2144648"
  },
  "r223": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349"
  },
  "r224": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14615-108349"
  },
  "r225": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14394-108349"
  },
  "r226": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349"
  },
  "r227": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14453-108349"
  },
  "r228": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14472-108349"
  },
  "r229": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349"
  },
  "r23": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r230": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "450",
   "URI": "http://asc.fasb.org/topic&trid=2127136"
  },
  "r231": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "460",
   "URI": "http://asc.fasb.org/extlink&oid=121555522&loc=d3e12021-110248"
  },
  "r232": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "460",
   "URI": "http://asc.fasb.org/extlink&oid=121555522&loc=d3e12053-110248"
  },
  "r233": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=120520924&loc=SL6036836-161870"
  },
  "r234": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=120520924&loc=SL6036836-161870"
  },
  "r235": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "470",
   "URI": "http://asc.fasb.org/topic&trid=2208564"
  },
  "r236": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "10",
   "Topic": "480",
   "URI": "http://asc.fasb.org/extlink&oid=109262497&loc=d3e20148-110875"
  },
  "r237": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(CFRR 211.02)",
   "Topic": "480",
   "URI": "http://asc.fasb.org/extlink&oid=65877616&loc=d3e177068-122764"
  },
  "r238": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=65888546&loc=d3e21300-112643"
  },
  "r239": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21553-112644"
  },
  "r24": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(31))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r240": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644"
  },
  "r241": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644"
  },
  "r242": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21484-112644"
  },
  "r243": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21488-112644"
  },
  "r244": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644"
  },
  "r245": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644"
  },
  "r246": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644"
  },
  "r247": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3-04)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770"
  },
  "r248": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "50",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775"
  },
  "r249": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "505",
   "URI": "http://asc.fasb.org/topic&trid=2208762"
  },
  "r25": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(32))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r250": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045"
  },
  "r251": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045"
  },
  "r252": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045"
  },
  "r253": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045"
  },
  "r254": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045"
  },
  "r255": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045"
  },
  "r256": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(2)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045"
  },
  "r257": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130558-203045"
  },
  "r258": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130561-203045"
  },
  "r259": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130563-203045"
  },
  "r26": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(5))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r260": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130563-203045"
  },
  "r261": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "19",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130564-203045"
  },
  "r262": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130566-203045"
  },
  "r263": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130566-203045"
  },
  "r264": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130566-203045"
  },
  "r265": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130566-203045"
  },
  "r266": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045"
  },
  "r267": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045"
  },
  "r268": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130550-203045"
  },
  "r269": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046"
  },
  "r27": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(6)(a)(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r270": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046"
  },
  "r271": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "606",
   "URI": "http://asc.fasb.org/topic&trid=49130388"
  },
  "r272": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "30",
   "SubTopic": "10",
   "Topic": "710",
   "URI": "http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363"
  },
  "r273": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "710",
   "URI": "http://asc.fasb.org/extlink&oid=6409961&loc=d3e20517-108367"
  },
  "r274": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(i)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r275": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(ii)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r276": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(01)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r277": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r278": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(A)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r279": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(B)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r28": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(6)(a)(3))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r280": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(C)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r281": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(03)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r282": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921"
  },
  "r283": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Subparagraph": "(d)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947"
  },
  "r284": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "80",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948"
  },
  "r285": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121326096&loc=d3e4534-113899"
  },
  "r286": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901"
  },
  "r287": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901"
  },
  "r288": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901"
  },
  "r289": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r29": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(6)(a)(4))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r290": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r291": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a),(g)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r292": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r293": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r294": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(i)-(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r295": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r296": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r297": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(3)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r298": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(4)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r299": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(i)-(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r3": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765"
  },
  "r30": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(6)(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r300": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r301": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r302": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(3)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r303": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r304": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r305": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r306": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r307": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r308": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r309": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r31": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(6)(b))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r310": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(iv)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r311": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r312": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r313": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(1)(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r314": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(1)(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r315": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r316": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r317": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(f)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r318": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r319": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(g)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r32": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(6)(c))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r320": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 14.D.2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809"
  },
  "r321": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 14.F)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809"
  },
  "r322": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120383193&loc=d3e11149-113907"
  },
  "r323": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120383193&loc=d3e11178-113907"
  },
  "r324": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "718",
   "URI": "http://asc.fasb.org/topic&trid=2228938"
  },
  "r325": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "730",
   "URI": "http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373"
  },
  "r326": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)(2)",
   "Topic": "740"
  },
  "r327": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)(3)",
   "Topic": "740"
  },
  "r328": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "808",
   "URI": "http://asc.fasb.org/extlink&oid=6931272&loc=SL5834143-161434"
  },
  "r329": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "808",
   "URI": "http://asc.fasb.org/extlink&oid=6931272&loc=SL5834143-161434"
  },
  "r33": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(7))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r330": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "808",
   "URI": "http://asc.fasb.org/extlink&oid=6931272&loc=SL5834143-161434"
  },
  "r331": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "808",
   "URI": "http://asc.fasb.org/topic&trid=5833765"
  },
  "r332": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988"
  },
  "r333": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988"
  },
  "r334": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c),(3)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r335": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bb)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685"
  },
  "r336": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685"
  },
  "r337": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "810",
   "URI": "http://asc.fasb.org/topic&trid=2197479"
  },
  "r338": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959"
  },
  "r339": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a),(c)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959"
  },
  "r34": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(8))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r340": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959"
  },
  "r341": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r342": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r343": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bb)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r344": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r345": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)(1)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r346": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)(2)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r347": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r348": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r349": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258"
  },
  "r35": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.1)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r350": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258"
  },
  "r351": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13531-108611"
  },
  "r352": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611"
  },
  "r353": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611"
  },
  "r354": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612"
  },
  "r355": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "230",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906"
  },
  "r356": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900"
  },
  "r357": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r358": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(b)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r359": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(c)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r36": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.14)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r360": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(d)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r361": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r362": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901"
  },
  "r363": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32618-110901"
  },
  "r364": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391"
  },
  "r365": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=119993939&loc=d3e28541-108399"
  },
  "r366": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399"
  },
  "r367": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399"
  },
  "r368": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400"
  },
  "r369": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977"
  },
  "r37": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.17)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r370": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977"
  },
  "r371": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977"
  },
  "r372": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918643-209977"
  },
  "r373": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(3)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980"
  },
  "r374": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(e)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980"
  },
  "r375": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(1)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980"
  },
  "r376": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(3)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980"
  },
  "r377": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(4)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980"
  },
  "r378": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980"
  },
  "r379": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980"
  },
  "r38": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r380": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "53",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971"
  },
  "r381": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "855",
   "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662"
  },
  "r382": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "855",
   "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662"
  },
  "r383": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "855",
   "URI": "http://asc.fasb.org/topic&trid=2122774"
  },
  "r384": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r385": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r386": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r387": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r388": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r389": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r39": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19(b),22(b))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r390": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r391": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r392": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r393": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719"
  },
  "r394": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728"
  },
  "r395": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)(1)(i)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729"
  },
  "r396": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "910",
   "URI": "http://asc.fasb.org/extlink&oid=119991564&loc=SL119991595-234733"
  },
  "r397": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 11.L)",
   "Topic": "924",
   "URI": "http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856"
  },
  "r398": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(10)(1))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r399": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(11))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r4": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765"
  },
  "r40": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19-26)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r400": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(13))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r401": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(16))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r402": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(23))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r403": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.17)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r404": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(22))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r405": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(23))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r406": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(26))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r407": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(27))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r408": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.9)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r409": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Subparagraph": "(b)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120252992&loc=d3e62557-112803"
  },
  "r41": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.20)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r410": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Subparagraph": "(a)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120252992&loc=SL120269850-112803"
  },
  "r411": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Subparagraph": "(b)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120252992&loc=SL120269850-112803"
  },
  "r412": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120252992&loc=SL120269850-112803"
  },
  "r413": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "470",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823"
  },
  "r414": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(16))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r415": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(12))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r416": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(23)(a)(3))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r417": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r418": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(25))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r419": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(8))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r42": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.21)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r420": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03.(a),19)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r421": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(18))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r422": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(19))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r423": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(22))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r424": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(23))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r425": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4H",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671331-158438"
  },
  "r426": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(d)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121643868&loc=SL117782755-158439"
  },
  "r427": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13H",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Subparagraph": "(a)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121639165&loc=SL117783719-158441"
  },
  "r428": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13H",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Subparagraph": "(b)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121639165&loc=SL117783719-158441"
  },
  "r429": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "29F",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121639165&loc=SL117819544-158441"
  },
  "r43": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.22(a)(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r430": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(e)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r431": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(f)(1)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r432": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(f)(2)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r433": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(g)(2)(i)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r434": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(g)(2)(ii)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r435": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(h)(2)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r436": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Subparagraph": "(e)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121641442&loc=d3e19393-158473"
  },
  "r437": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "825",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=99380617&loc=SL75241803-196195"
  },
  "r438": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 1))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r439": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 6))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r44": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.22(a)(2))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r440": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 7))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r441": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 1))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r442": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 6))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r443": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 7))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r444": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 1))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r445": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 6))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r446": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 7))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r447": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5D",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-13D(Column B)(Footnote 2))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=SL120429264-123010"
  },
  "r448": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5D",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-13D(Column C)(Footnote 2))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=SL120429264-123010"
  },
  "r449": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column A))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611379-123010"
  },
  "r45": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.22)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r450": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column B))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611379-123010"
  },
  "r451": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column C))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611379-123010"
  },
  "r452": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column D))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611379-123010"
  },
  "r453": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "310",
   "Subparagraph": "(SX 210.12-29(Footnote 4))",
   "Topic": "948",
   "URI": "http://asc.fasb.org/extlink&oid=120402547&loc=d3e617274-123014"
  },
  "r454": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "210",
   "Topic": "954",
   "URI": "http://asc.fasb.org/extlink&oid=120413173&loc=SL116631458-115580"
  },
  "r455": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "360",
   "Subparagraph": "(SX 210.12-28(Column B))",
   "Topic": "970",
   "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024"
  },
  "r456": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "360",
   "Subparagraph": "(SX 210.12-28(Column C))",
   "Topic": "970",
   "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024"
  },
  "r457": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "360",
   "Subparagraph": "(SX 210.12-28(Column D))",
   "Topic": "970",
   "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024"
  },
  "r458": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "360",
   "Subparagraph": "(SX 210.12-28(Column E))",
   "Topic": "970",
   "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024"
  },
  "r459": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "360",
   "Subparagraph": "(SX 210.12-28(Column F))",
   "Topic": "970",
   "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024"
  },
  "r46": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.24)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r460": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "360",
   "Subparagraph": "(SX 210.12-28(Column G))",
   "Topic": "970",
   "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024"
  },
  "r461": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "360",
   "Subparagraph": "(SX 210.12-28(Column H))",
   "Topic": "970",
   "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024"
  },
  "r462": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "360",
   "Subparagraph": "(SX 210.12-28(Column I))",
   "Topic": "970",
   "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024"
  },
  "r463": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "360",
   "Subparagraph": "(SX 210.12-28(Footnote 2))",
   "Topic": "970",
   "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024"
  },
  "r464": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "985",
   "URI": "http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756"
  },
  "r465": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b"
  },
  "r466": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r467": {
   "Name": "Form 10-Q",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "308",
   "Subsection": "a"
  },
  "r468": {
   "Name": "Forms 10-K, 10-Q, 20-F",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13",
   "Subsection": "a-1"
  },
  "r469": {
   "Name": "Regulation 12B",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r47": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.25)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r470": {
   "Name": "Regulation S-T",
   "Number": "232",
   "Publisher": "SEC",
   "Section": "405"
  },
  "r48": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.28,29)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r49": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r5": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6801-107765"
  },
  "r50": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29-30)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r51": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29-31)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r52": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.6(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r53": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.6(b))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r54": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.9)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r55": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r56": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226024-175313"
  },
  "r57": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313"
  },
  "r58": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580"
  },
  "r59": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580"
  },
  "r6": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6812-107765"
  },
  "r60": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580"
  },
  "r61": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e681-108580"
  },
  "r62": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580"
  },
  "r63": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL34724394-108580"
  },
  "r64": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580"
  },
  "r65": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580"
  },
  "r66": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580"
  },
  "r67": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669625-108580"
  },
  "r68": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669625-108580"
  },
  "r69": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e557-108580"
  },
  "r7": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6904-107765"
  },
  "r70": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121640130&loc=d3e1436-108581"
  },
  "r71": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(210.5-03(11))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r72": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(2)(a))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r73": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(2)(d))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r74": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(20))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r75": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(21))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r76": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(24))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r77": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(25))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r78": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(b)(2))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r79": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r8": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6911-107765"
  },
  "r80": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.4)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r81": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.7(b))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r82": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.8)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r83": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.9)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r84": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3151-108585"
  },
  "r85": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585"
  },
  "r86": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585"
  },
  "r87": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585"
  },
  "r88": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585"
  },
  "r89": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585"
  },
  "r9": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766"
  },
  "r90": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585"
  },
  "r91": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585"
  },
  "r92": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3367-108585"
  },
  "r93": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3521-108585"
  },
  "r94": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585"
  },
  "r95": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585"
  },
  "r96": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585"
  },
  "r97": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585"
  },
  "r98": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585"
  },
  "r99": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3044-108585"
  }
 },
 "version": "2.1"
}
