{ "version": "2.2", "instance": { "annx-20230930.htm": { "nsprefix": "annx", "nsuri": "http://annexonbio.com/20230930", "dts": { "inline": { "local": [ "annx-20230930.htm" ] }, "schema": { "local": [ "annx-20230930.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", "http://www.xbrl.org/2006/ref-2006-02-27.xsd", "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd", "https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd", "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd", "https://www.xbrl.org/dtr/type/2022-03-31/types.xsd", "https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd", "https://xbrl.fasb.org/srt/2023/elts/srt-roles-2023.xsd", "https://xbrl.fasb.org/srt/2023/elts/srt-types-2023.xsd", "https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd", "https://xbrl.fasb.org/us-gaap/2023/elts/us-roles-2023.xsd", "https://xbrl.fasb.org/us-gaap/2023/elts/us-types-2023.xsd", "https://xbrl.sec.gov/country/2023/country-2023.xsd", "https://xbrl.sec.gov/dei/2023/dei-2023.xsd" ] }, "calculationLink": { "local": [ "annx-20230930_cal.xml" ] }, "definitionLink": { "local": [ "annx-20230930_def.xml" ] }, "labelLink": { "local": [ "annx-20230930_lab.xml" ] }, "presentationLink": { "local": [ "annx-20230930_pre.xml" ] } }, "keyStandard": 193, "keyCustom": 31, "axisStandard": 15, "axisCustom": 0, "memberStandard": 22, "memberCustom": 14, "hidden": { "total": 6, "http://fasb.org/us-gaap/2023": 2, "http://xbrl.sec.gov/dei/2023": 4 }, "contextCount": 165, "entityCount": 1, "segmentCount": 42, "elementCount": 366, "unitCount": 5, "baseTaxonomies": { "http://fasb.org/us-gaap/2023": 523, "http://xbrl.sec.gov/dei/2023": 32 }, "report": { "R1": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage", "longName": "100000 - Document - Cover Page", "shortName": "Cover Page", "isDefault": "true", "groupType": "document", "subGroupType": "", "menuCat": "Cover", "order": "1", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "dei:DocumentType", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "dei:DocumentType", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R2": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets", "longName": "100010 - Statement - Condensed Consolidated Balance Sheets", "shortName": "Condensed Consolidated Balance Sheets", "isDefault": "false", "groupType": "statement", "subGroupType": "", "menuCat": "Statements", "order": "2", "firstAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "unique": true } }, "R3": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations", "longName": "100020 - Statement - Condensed Consolidated Statements of Operations", "shortName": "Condensed Consolidated Statements of Operations", "isDefault": "false", "groupType": "statement", "subGroupType": "", "menuCat": "Statements", "order": "3", "firstAnchor": { "contextRef": "C_70789a8f-d5a2-4582-9ed3-6f4b7a269c74", "name": "us-gaap:ResearchAndDevelopmentExpense", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_70789a8f-d5a2-4582-9ed3-6f4b7a269c74", "name": "us-gaap:ResearchAndDevelopmentExpense", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R4": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfComprehensiveLoss", "longName": "100030 - Statement - Condensed Consolidated Statements of Comprehensive Loss", "shortName": "Condensed Consolidated Statements of Comprehensive Loss", "isDefault": "false", "groupType": "statement", "subGroupType": "", "menuCat": "Statements", "order": "4", "firstAnchor": { "contextRef": "C_70789a8f-d5a2-4582-9ed3-6f4b7a269c74", "name": "us-gaap:NetIncomeLoss", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_70789a8f-d5a2-4582-9ed3-6f4b7a269c74", "name": "us-gaap:ComprehensiveIncomeNetOfTax", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "unique": true } }, "R5": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity", "longName": "100040 - Statement - Condensed Consolidated Statements of Stockholders' Equity", "shortName": "Condensed Consolidated Statements of Stockholders' Equity", "isDefault": "false", "groupType": "statement", "subGroupType": "", "menuCat": "Statements", "order": "5", "firstAnchor": { "contextRef": "C_efa937ae-a2b6-4443-a391-3217b263e0b7", "name": "us-gaap:StockholdersEquity", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_b7fa7439-57d8-4946-a508-7843e291f166", "name": "us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "unique": true } }, "R6": { "role": "http://annexonbio.com/20230930/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquityParenthetical", "longName": "100050 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Parenthetical)", "shortName": "Condensed Consolidated Statements of Stockholders' Equity (Parenthetical)", "isDefault": "false", "groupType": "statement", "subGroupType": "parenthetical", "menuCat": "Statements", "order": "6", "firstAnchor": { "contextRef": "C_9efe0216-349c-4b77-b6f3-9dede54e5610", "name": "us-gaap:AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_9efe0216-349c-4b77-b6f3-9dede54e5610", "name": "us-gaap:AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R7": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows", "longName": "100060 - Statement - Condensed Consolidated Statements of Cash Flows", "shortName": "Condensed Consolidated Statements of Cash Flows", "isDefault": "false", "groupType": "statement", "subGroupType": "", "menuCat": "Statements", "order": "7", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:NetIncomeLoss", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:DepreciationDepletionAndAmortization", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "unique": true } }, "R8": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureOrganization", "longName": "100070 - Disclosure - Organization", "shortName": "Organization", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "8", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R9": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBasisOfPresentationAndSignificantAccountingPolicies", "longName": "100080 - Disclosure - Basis of Presentation and Significant Accounting Policies", "shortName": "Basis of Presentation and Significant Accounting Policies", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "9", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:BasisOfPresentationAndSignificantAccountingPoliciesTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:BasisOfPresentationAndSignificantAccountingPoliciesTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R10": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureFairValueMeasurements", "longName": "100090 - Disclosure - Fair Value Measurements", "shortName": "Fair Value Measurements", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "10", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:FairValueDisclosuresTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:FairValueDisclosuresTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R11": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponents", "longName": "100100 - Disclosure - Balance Sheet Components", "shortName": "Balance Sheet Components", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "11", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "annx:BalanceSheetComponentsDisclosureTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "annx:BalanceSheetComponentsDisclosureTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R12": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingencies", "longName": "100110 - Disclosure - Commitments and Contingencies", "shortName": "Commitments and Contingencies", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "12", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R13": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquity", "longName": "100120 - Disclosure - Stockholder's Equity", "shortName": "Stockholder's Equity", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "13", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R14": { "role": "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlans", "longName": "100130 - Disclosure - Equity Incentive Plans", "shortName": "Equity Incentive Plans", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "14", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R15": { "role": "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShare1", "longName": "100170 - Disclosure - Net Loss Per Share", "shortName": "Net Loss Per Share", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "15", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:EarningsPerShareTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:EarningsPerShareTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R16": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies", "longName": "100190 - Disclosure - Basis of Presentation and Significant Accounting Policies (Policies)", "shortName": "Basis of Presentation and Significant Accounting Policies (Policies)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "policies", "menuCat": "Policies", "order": "16", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:BasisOfPresentationAndSignificantAccountingPoliciesTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:BasisOfPresentationAndSignificantAccountingPoliciesTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R17": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureFairValueMeasurementsTables", "longName": "100200 - Disclosure - Fair Value Measurements (Tables)", "shortName": "Fair Value Measurements (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "17", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "us-gaap:FairValueDisclosuresTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "us-gaap:FairValueDisclosuresTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R18": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsTables", "longName": "100210 - Disclosure - Balance Sheet Components (Tables)", "shortName": "Balance Sheet Components (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "18", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "annx:ScheduleOfCashAndCashEquivalentsAndRestrictedCashTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "annx:BalanceSheetComponentsDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "annx:ScheduleOfCashAndCashEquivalentsAndRestrictedCashTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "annx:BalanceSheetComponentsDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R19": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesTables", "longName": "100220 - Disclosure - Commitments and Contingencies (Tables)", "shortName": "Commitments and Contingencies (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "19", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R20": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityTables", "longName": "100230 - Disclosure - Stockholder's Equity (Tables)", "shortName": "Stockholder's Equity (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "20", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "annx:ScheduleOfCommonStockReservedForFutureIssuanceTableTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "annx:ScheduleOfCommonStockReservedForFutureIssuanceTableTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R21": { "role": "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansTables", "longName": "100240 - Disclosure - Equity Incentive Plans (Tables)", "shortName": "Equity Incentive Plans (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "21", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R22": { "role": "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareTables", "longName": "100250 - Disclosure - Net Loss Per Share (Tables)", "shortName": "Net Loss Per Share (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "22", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:EarningsPerShareTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "us-gaap:EarningsPerShareTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R23": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureOrganizationAdditionalInformationDetail", "longName": "100260 - Disclosure - Organization - Additional Information (Detail)", "shortName": "Organization - Additional Information (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "23", "firstAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "us-gaap:RetainedEarningsAccumulatedDeficit", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "us-gaap:CashCashEquivalentsAndShortTermInvestments", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-5", "ancestors": [ "span", "p", "us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "unique": true } }, "R24": { "role": "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail", "longName": "100270 - Disclosure - Fair Value Measurements - Summary of Financial Assets Measured at Fair Value on a Recurring Basis (Detail)", "shortName": "Fair Value Measurements - Summary of Financial Assets Measured at Fair Value on a Recurring Basis (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "24", "firstAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ix:continuation", "div", "us-gaap:FairValueDisclosuresTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "ix:continuation", "div", "us-gaap:FairValueDisclosuresTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R25": { "role": "http://annexonbio.com/20230930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails", "longName": "100280 - Disclosure - Balance Sheet Components - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details)", "shortName": "Balance Sheet Components - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "25", "firstAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "us-gaap:Cash", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "annx:ScheduleOfCashAndCashEquivalentsAndRestrictedCashTableTextBlock", "div", "annx:BalanceSheetComponentsDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "us-gaap:Cash", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "annx:ScheduleOfCashAndCashEquivalentsAndRestrictedCashTableTextBlock", "div", "annx:BalanceSheetComponentsDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R26": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetail", "longName": "100290 - Disclosure - Balance Sheet Components - Summary of Prepaid Expenses and Other Current Assets (Detail)", "shortName": "Balance Sheet Components - Summary of Prepaid Expenses and Other Current Assets (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "26", "firstAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "annx:PrepaidResearchAndDevelopmentCostsCurrent", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "annx:SummaryOfPrepaidExpensesAndOtherCurrentAssetsTextBlock", "div", "annx:BalanceSheetComponentsDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "annx:PrepaidResearchAndDevelopmentCostsCurrent", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "annx:SummaryOfPrepaidExpensesAndOtherCurrentAssetsTextBlock", "div", "annx:BalanceSheetComponentsDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R27": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail", "longName": "100300 - Disclosure - Balance Sheet Components - Summary of Property and Equipment, Net (Detail)", "shortName": "Balance Sheet Components - Summary of Property and Equipment, Net (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "27", "firstAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "us-gaap:PropertyPlantAndEquipmentGross", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:PropertyPlantAndEquipmentTextBlock", "div", "annx:BalanceSheetComponentsDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "us-gaap:PropertyPlantAndEquipmentGross", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:PropertyPlantAndEquipmentTextBlock", "div", "annx:BalanceSheetComponentsDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R28": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsAdditionalInformationDetail", "longName": "100310 - Disclosure - Balance Sheet Components - Additional Information (Detail)", "shortName": "Balance Sheet Components - Additional Information (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "28", "firstAnchor": { "contextRef": "C_70789a8f-d5a2-4582-9ed3-6f4b7a269c74", "name": "us-gaap:Depreciation", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-5", "ancestors": [ "span", "p", "annx:BalanceSheetComponentsDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_70789a8f-d5a2-4582-9ed3-6f4b7a269c74", "name": "us-gaap:Depreciation", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-5", "ancestors": [ "span", "p", "annx:BalanceSheetComponentsDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R29": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfAccruedLiabilitiesDetail", "longName": "100320 - Disclosure - Balance Sheet Components - Summary of Accrued Liabilities (Detail)", "shortName": "Balance Sheet Components - Summary of Accrued Liabilities (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "29", "firstAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "annx:AccruedResearchAndDevelopmentExpensesCurrent", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock", "div", "annx:BalanceSheetComponentsDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "annx:AccruedResearchAndDevelopmentExpensesCurrent", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock", "div", "annx:BalanceSheetComponentsDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R30": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail", "longName": "100330 - Disclosure - Commitments and Contingencies - Additional Information (Detail)", "shortName": "Commitments and Contingencies - Additional Information (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "30", "firstAnchor": { "contextRef": "C_4e872773-aa22-4944-829f-13312e55f79e", "name": "annx:AggregateSubleasePaymentReceivable", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-5", "ancestors": [ "span", "p", "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_4e872773-aa22-4944-829f-13312e55f79e", "name": "annx:AggregateSubleasePaymentReceivable", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-5", "ancestors": [ "span", "p", "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R31": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail", "longName": "100340 - Disclosure - Commitments and Contingencies - Future Minimum Lease Payments and Related Lease Liabilities (Detail)", "shortName": "Commitments and Contingencies - Future Minimum Lease Payments and Related Lease Liabilities (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "31", "firstAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "div", "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "div", "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R32": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail", "longName": "100360 - Disclosure - Stockholder's Equity - Schedule of Common Stock Reserved for Future Issuance (Detail)", "shortName": "Stockholder's Equity - Schedule of Common Stock Reserved for Future Issuance (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "32", "firstAnchor": { "contextRef": "C_890625bc-e118-4799-b326-fe73ed118023", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "unitRef": "U_shares", "xsiNil": "false", "lang": null, "decimals": "INF", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "div", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_49445998-766b-4166-a29a-15db23fd70cb", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "unitRef": "U_shares", "xsiNil": "false", "lang": null, "decimals": "INF", "ancestors": [ "span", "p", "td", "tr", "table", "annx:ScheduleOfCommonStockReservedForFutureIssuanceTableTableTextBlock", "div", "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "unique": true } }, "R33": { "role": "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail", "longName": "100370 - Disclosure - Stockholder's Equity - Additional Information (Detail)", "shortName": "Stockholder's Equity - Additional Information (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "33", "firstAnchor": { "contextRef": "C_37ed0459-33cb-4e8b-83ab-c2e0fb0527df", "name": "us-gaap:ProceedsFromIssuanceOfPrivatePlacement", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-5", "ancestors": [ "span", "p", "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_37ed0459-33cb-4e8b-83ab-c2e0fb0527df", "name": "us-gaap:ProceedsFromIssuanceOfPrivatePlacement", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-5", "ancestors": [ "span", "p", "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R34": { "role": "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "longName": "100380 - Disclosure - Equity Incentive Plans - Additional Information (Detail)", "shortName": "Equity Incentive Plans - Additional Information (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "34", "firstAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "annx:PercentageOfNumberOfSharesOfCapitalStockOutstandingOnLastDayOfPrecedingYear", "unitRef": "U_pure", "xsiNil": "false", "lang": null, "decimals": "2", "ancestors": [ "span", "p", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "annx:PercentageOfNumberOfSharesOfCapitalStockOutstandingOnLastDayOfPrecedingYear", "unitRef": "U_pure", "xsiNil": "false", "lang": null, "decimals": "2", "ancestors": [ "span", "p", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R35": { "role": "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail", "longName": "100390 - Disclosure - Equity Incentive Plans - Summary of Stock Option Activity (Detail)", "shortName": "Equity Incentive Plans - Summary of Stock Option Activity (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "35", "firstAnchor": { "contextRef": "C_d503c258-0231-43b0-98c9-5c559be9534c", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "unitRef": "U_shares", "xsiNil": "false", "lang": null, "decimals": "INF", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "div", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_274c2485-057b-4f72-b9a8-226dc6332211", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross", "unitRef": "U_shares", "xsiNil": "false", "lang": null, "decimals": "INF", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "div", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "unique": true } }, "R36": { "role": "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfRsuActivityUnder2020PlanDetail", "longName": "100400 - Disclosure - Equity Incentive Plans - Summary of RSU Activity under 2020 Plan (Detail)", "shortName": "Equity Incentive Plans - Summary of RSU Activity under 2020 Plan (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "36", "firstAnchor": { "contextRef": "C_d503c258-0231-43b0-98c9-5c559be9534c", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "unitRef": "U_shares", "xsiNil": "false", "lang": null, "decimals": "INF", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock", "div", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_d503c258-0231-43b0-98c9-5c559be9534c", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "unitRef": "U_shares", "xsiNil": "false", "lang": null, "decimals": "INF", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock", "div", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R37": { "role": "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockbasedCompensationExpenseDetail", "longName": "100410 - Disclosure - Equity Incentive Plans - Summary of Stock-Based Compensation Expense (Detail)", "shortName": "Equity Incentive Plans - Summary of Stock-Based Compensation Expense (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "37", "firstAnchor": { "contextRef": "C_70789a8f-d5a2-4582-9ed3-6f4b7a269c74", "name": "us-gaap:AllocatedShareBasedCompensationExpense", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock", "div", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true }, "uniqueAnchor": { "contextRef": "C_75403b92-983d-4a14-af81-30bb937da6b1", "name": "us-gaap:AllocatedShareBasedCompensationExpense", "unitRef": "U_USD", "xsiNil": "false", "lang": null, "decimals": "-3", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock", "div", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "unique": true } }, "R38": { "role": "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfFairValueOfEachAwardIssuedEstimatedOnTheDateOfGrantUsingTheBlackscholesOptionPricingModelDetail", "longName": "100420 - Disclosure - Equity Incentive Plans - Summary of Fair Value of Each Award Issued Estimated on the Date of Grant Using the Black-Scholes Option Pricing Model (Detail)", "shortName": "Equity Incentive Plans - Summary of Fair Value of Each Award Issued Estimated on the Date of Grant Using the Black-Scholes Option Pricing Model (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "38", "firstAnchor": { "contextRef": "C_70789a8f-d5a2-4582-9ed3-6f4b7a269c74", "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock", "div", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_70789a8f-d5a2-4582-9ed3-6f4b7a269c74", "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock", "div", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } }, "R39": { "role": "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareAdditionalInformationDetail", "longName": "100430 - Disclosure - Net Loss Per Share - Additional Information (Detail)", "shortName": "Net Loss Per Share - Additional Information (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "39", "firstAnchor": { "contextRef": "C_f87f3524-27e3-455f-911f-5245f18cd7e2", "name": "us-gaap:ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights", "unitRef": "U_shares", "xsiNil": "false", "lang": null, "decimals": "INF", "ancestors": [ "span", "p", "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true }, "uniqueAnchor": null }, "R40": { "role": "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareSummaryOfOutstandingPotentiallyDilutiveSharesExcludedFromCalculationOfDilutedNetLossPerShareDetail", "longName": "100440 - Disclosure - Net Loss Per Share - Summary of Outstanding Potentially Dilutive Shares Excluded From Calculation of Diluted Net Loss Per Share (Detail)", "shortName": "Net Loss Per Share - Summary of Outstanding Potentially Dilutive Shares Excluded From Calculation of Diluted Net Loss Per Share (Detail)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "40", "firstAnchor": { "contextRef": "C_70789a8f-d5a2-4582-9ed3-6f4b7a269c74", "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "unitRef": "U_shares", "xsiNil": "false", "lang": null, "decimals": "0", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock", "div", "us-gaap:EarningsPerShareTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "C_70789a8f-d5a2-4582-9ed3-6f4b7a269c74", "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "unitRef": "U_shares", "xsiNil": "false", "lang": null, "decimals": "0", "ancestors": [ "span", "p", "td", "tr", "table", "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock", "div", "us-gaap:EarningsPerShareTextBlock", "div", "body", "html" ], "reportCount": 1, "baseRef": "annx-20230930.htm", "first": true, "unique": true } } }, "tag": { "us-gaap_ShareBasedCompensation": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensation", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement, Noncash Expense", "terseLabel": "Stock-based compensation", "totalLabel": "Share-based Payment Arrangement, Noncash Expense, Total", "documentation": "Amount of noncash expense for share-based payment arrangement." } } }, "auth_ref": [ "r4" ] }, "us-gaap_StatementOfFinancialPositionAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StatementOfFinancialPositionAbstract", "lang": { "en-us": { "role": { "label": "Statement of Financial Position [Abstract]" } } }, "auth_ref": [] }, "us-gaap_AntidilutiveSecuritiesNameDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AntidilutiveSecuritiesNameDomain", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareSummaryOfOutstandingPotentiallyDilutiveSharesExcludedFromCalculationOfDilutedNetLossPerShareDetail" ], "lang": { "en-us": { "role": { "label": "Antidilutive Securities, Name [Domain]", "terseLabel": "Antidilutive Securities, Name", "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." } } }, "auth_ref": [ "r30" ] }, "us-gaap_LeaseholdImprovementsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LeaseholdImprovementsMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail" ], "lang": { "en-us": { "role": { "label": "Leasehold Improvements [Member]", "terseLabel": "Leasehold Improvements [Member]", "documentation": "Additions or improvements to assets held under a lease arrangement." } } }, "auth_ref": [ "r75" ] }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price", "terseLabel": "Weighted average exercise price per share, Stock options forfeited", "documentation": "Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated." } } }, "auth_ref": [ "r275" ] }, "us-gaap_EmployeeStockMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "EmployeeStockMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareSummaryOfOutstandingPotentiallyDilutiveSharesExcludedFromCalculationOfDilutedNetLossPerShareDetail" ], "lang": { "en-us": { "role": { "verboseLabel": "Employees [Member]", "label": "Employee Stock [Member]", "terseLabel": "Shares Subject to Employee Stock Purchase Plan [Member]", "documentation": "An Employee Stock Purchase Plan is a tax-efficient means by which employees of a corporation can purchase the corporation's stock." } } }, "auth_ref": [] }, "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CommitmentsAndContingenciesDisclosureAbstract", "lang": { "en-us": { "role": { "label": "Commitments and Contingencies Disclosure [Abstract]" } } }, "auth_ref": [] }, "us-gaap_ClassOfWarrantOrRightTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ClassOfWarrantOrRightTable", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Class of Warrant or Right [Table]", "documentation": "Disclosure for warrants or rights issued, which includes 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." } } }, "auth_ref": [ "r43" ] }, "us-gaap_IncomeTaxDisclosureAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "IncomeTaxDisclosureAbstract", "lang": { "en-us": { "role": { "label": "Income Tax Disclosure [Abstract]" } } }, "auth_ref": [] }, "us-gaap_AccruedLiabilitiesCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AccruedLiabilitiesCurrent", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0, "order": 1.0 }, "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfAccruedLiabilitiesDetail": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfAccruedLiabilitiesDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Accrued Liabilities, Current", "terseLabel": "Accrued liabilities", "totalLabel": "Total accrued liabilities", "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)." } } }, "auth_ref": [ "r15" ] }, "us-gaap_LiabilitiesAndStockholdersEquity": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LiabilitiesAndStockholdersEquity", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Liabilities and Equity", "totalLabel": "Total liabilities and stockholders\u2019 equity", "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any." } } }, "auth_ref": [ "r63", "r86", "r400", "r551", "r591", "r602", "r618" ] }, "us-gaap_PrivatePlacementMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "PrivatePlacementMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Private Placement", "terseLabel": "Private Placement Warrants [Member]", "verboseLabel": "Private Placement [Member]", "documentation": "A private placement is a direct offering of securities to a limited number of sophisticated investors such as insurance companies, pension funds, mezzanine funds, stock funds and trusts." } } }, "auth_ref": [] }, "us-gaap_SubsequentEventsTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "SubsequentEventsTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureSubsequentEvents1" ], "lang": { "en-us": { "role": { "terseLabel": "Subsequent Events", "label": "Subsequent Events [Text Block]", "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." } } }, "auth_ref": [ "r355", "r356" ] }, "us-gaap_LiabilitiesAndStockholdersEquityAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LiabilitiesAndStockholdersEquityAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Liabilities and Equity [Abstract]", "terseLabel": "Liabilities and Stockholders\u2019 Equity" } } }, "auth_ref": [] }, "us-gaap_AccruedProfessionalFeesCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AccruedProfessionalFeesCurrent", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfAccruedLiabilitiesDetail": { "parentTag": "us-gaap_AccruedLiabilitiesCurrent", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfAccruedLiabilitiesDetail" ], "lang": { "en-us": { "role": { "label": "Accrued Professional Fees, Current", "terseLabel": "Accrued professional services", "documentation": "Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer)." } } }, "auth_ref": [ "r15" ] }, "us-gaap_Liabilities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "Liabilities", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Liabilities", "totalLabel": "Total liabilities", "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." } } }, "auth_ref": [ "r14", "r126", "r201", "r223", "r224", "r225", "r226", "r227", "r228", "r229", "r230", "r231", "r314", "r315", "r316", "r332", "r448", "r535", "r563", "r610", "r621", "r622" ] }, "us-gaap_FairValueDisclosuresAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "FairValueDisclosuresAbstract", "lang": { "en-us": { "role": { "label": "Fair Value Disclosures [Abstract]" } } }, "auth_ref": [] }, "us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AccretionAmortizationOfDiscountsAndPremiumsInvestments", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0, "order": 2.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Accretion (Amortization) of Discounts and Premiums, Investments", "negatedLabel": "Accretion of (discount) premium on available-for-sale securities", "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." } } }, "auth_ref": [ "r71" ] }, "us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "BasisOfPresentationAndSignificantAccountingPoliciesTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBasisOfPresentationAndSignificantAccountingPolicies" ], "lang": { "en-us": { "role": { "label": "Basis of Presentation and Significant Accounting Policies [Text Block]", "terseLabel": "Basis of Presentation and Significant Accounting Policies", "documentation": "The entire disclosure for the basis of presentation and significant accounting policies concepts. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). Accounting policies describe all significant accounting policies of the reporting entity." } } }, "auth_ref": [ "r72" ] }, "us-gaap_RetainedEarningsAccumulatedDeficit": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "RetainedEarningsAccumulatedDeficit", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureOrganizationAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Retained Earnings (Accumulated Deficit)", "terseLabel": "Accumulated deficit", "totalLabel": "Retained Earnings (Accumulated Deficit), Total", "periodStartLabel": "Retained Earnings (Accumulated Deficit), Beginning Balance", "periodEndLabel": "Retained Earnings (Accumulated Deficit), Ending Balance", "negatedLabel": "Accumulated deficit", "documentation": "Amount of accumulated undistributed earnings (deficit)." } } }, "auth_ref": [ "r60", "r81", "r399", "r411", "r413", "r419", "r451", "r551" ] }, "us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "BusinessDescriptionAndBasisOfPresentationTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureOrganization" ], "lang": { "en-us": { "role": { "label": "Business Description and Basis of Presentation [Text Block]", "terseLabel": "Organization", "documentation": "The entire disclosure for the business description and basis of presentation concepts. Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS)." } } }, "auth_ref": [ "r56", "r72", "r73" ] }, "us-gaap_AssetsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AssetsAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Assets [Abstract]", "terseLabel": "Assets" } } }, "auth_ref": [] }, "annx_ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumEmployeeSubscriptionRate": { "xbrltype": "percentItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumEmployeeSubscriptionRate", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Share based compensation arrangement by share based payment award minimum employee subscription rate.", "label": "Share Based Compensation Arrangement By Share Based Payment Award Minimum Employee Subscription Rate", "terseLabel": "Share purchases funded through payroll deductions minimum percentage of employee's eligible compensation" } } }, "auth_ref": [] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Employee Subscription Rate", "terseLabel": "Share purchases funded through payroll deductions maximum percentage of employee's eligible compensation", "documentation": "The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan." } } }, "auth_ref": [ "r44" ] }, "srt_RangeAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/srt/2023", "localname": "RangeAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfFairValueOfEachAwardIssuedEstimatedOnTheDateOfGrantUsingTheBlackscholesOptionPricingModelDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Statistical Measurement [Axis]", "terseLabel": "Statistical Measurement" } } }, "auth_ref": [ "r218", "r219", "r220", "r221", "r253", "r260", "r288", "r289", "r290", "r363", "r387", "r407", "r440", "r441", "r499", "r501", "r503", "r504", "r506", "r525", "r526", "r537", "r542", "r547", "r552", "r555", "r604", "r612", "r624", "r625", "r626", "r627", "r628" ] }, "us-gaap_VariableLeasePayment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "VariableLeasePayment", "crdr": "credit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Variable Lease, Payment", "terseLabel": "Variable lease payments", "documentation": "Amount of cash outflow for variable lease payment excluded from lease liability." } } }, "auth_ref": [ "r342" ] }, "us-gaap_NetIncomeLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "NetIncomeLoss", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfComprehensiveLoss": { "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0, "order": 0.0 }, "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0, "order": 0.0 }, "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfComprehensiveLoss", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "label": "Net Income (Loss)", "terseLabel": "Net loss", "totalLabel": "Net loss", "verboseLabel": "Income (loss)", "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent." } } }, "auth_ref": [ "r65", "r71", "r87", "r96", "r112", "r114", "r118", "r126", "r133", "r135", "r136", "r137", "r138", "r141", "r142", "r148", "r159", "r161", "r163", "r165", "r201", "r223", "r224", "r225", "r226", "r227", "r228", "r229", "r230", "r231", "r327", "r332", "r403", "r471", "r490", "r491", "r536", "r561", "r610" ] }, "us-gaap_StatementLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StatementLineItems", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity", "http://annexonbio.com/20230930/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquityParenthetical" ], "lang": { "en-us": { "role": { "label": "Statement [Line Items]", "terseLabel": "Statement [Line Items]", "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." } } }, "auth_ref": [ "r130", "r131", "r132", "r156", "r388", "r414", "r436", "r442", "r443", "r444", "r445", "r446", "r447", "r450", "r453", "r454", "r455", "r456", "r457", "r459", "r460", "r461", "r462", "r464", "r465", "r466", "r467", "r468", "r470", "r473", "r474", "r478", "r479", "r480", "r481", "r482", "r483", "r484", "r485", "r486", "r487", "r488", "r489", "r492", "r556" ] }, "us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OperatingLeaseRightOfUseAssetAmortizationExpense", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0, "order": 4.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Operating Lease, Right-of-Use Asset, Periodic Reduction", "terseLabel": "Reduction in the carrying amount of right-of-use assets", "documentation": "Amount of periodic reduction over lease term of carrying amount of right-of-use asset from operating lease." } } }, "auth_ref": [ "r588" ] }, "srt_MaximumMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2023", "localname": "MaximumMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfFairValueOfEachAwardIssuedEstimatedOnTheDateOfGrantUsingTheBlackscholesOptionPricingModelDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Maximum [Member]", "terseLabel": "Maximum [Member]" } } }, "auth_ref": [ "r218", "r219", "r220", "r221", "r260", "r387", "r407", "r440", "r441", "r499", "r501", "r503", "r504", "r506", "r525", "r526", "r537", "r542", "r547", "r552", "r612", "r623", "r624", "r625", "r626", "r627", "r628" ] }, "us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Financial Instruments [Domain]", "documentation": "Instrument or contract that imposes a contractual obligation to deliver cash or another financial instrument or to exchange other financial instruments on potentially unfavorable terms and conveys a contractual right to receive cash or another financial instrument or to exchange other financial instruments on potentially favorable terms." } } }, "auth_ref": [ "r170", "r171", "r172", "r173", "r174", "r175", "r176", "r177", "r178", "r179", "r180", "r181", "r182", "r183", "r184", "r185", "r186", "r187", "r188", "r189", "r190", "r191", "r192", "r193", "r194", "r195", "r196", "r197", "r198", "r199", "r234", "r248", "r323", "r357", "r358", "r359", "r360", "r361", "r362", "r363", "r364", "r365", "r366", "r367", "r368", "r369", "r370", "r371", "r372", "r373", "r374", "r375", "r376", "r377", "r378", "r379", "r380", "r381", "r382", "r383", "r384", "r385", "r386", "r404", "r573", "r574", "r575", "r576", "r577", "r578", "r579", "r598", "r599", "r600", "r601" ] }, "srt_RangeMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2023", "localname": "RangeMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfFairValueOfEachAwardIssuedEstimatedOnTheDateOfGrantUsingTheBlackscholesOptionPricingModelDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Statistical Measurement [Domain]", "terseLabel": "Statistical Measurement" } } }, "auth_ref": [ "r218", "r219", "r220", "r221", "r253", "r260", "r288", "r289", "r290", "r363", "r387", "r407", "r440", "r441", "r499", "r501", "r503", "r504", "r506", "r525", "r526", "r537", "r542", "r547", "r552", "r555", "r604", "r612", "r624", "r625", "r626", "r627", "r628" ] }, "us-gaap_RelatedPartyTransactionsDisclosureTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "RelatedPartyTransactionsDisclosureTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureRelatedPartyTransactions1" ], "lang": { "en-us": { "role": { "label": "Related Party Transactions Disclosure [Text Block]", "terseLabel": "Related Party Transactions", "documentation": "The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates." } } }, "auth_ref": [ "r349", "r350", "r351", "r352", "r354", "r421", "r422", "r423", "r475", "r476", "r477", "r496", "r498" ] }, "us-gaap_SaleOfStockNameOfTransactionDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "SaleOfStockNameOfTransactionDomain", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareSummaryOfOutstandingPotentiallyDilutiveSharesExcludedFromCalculationOfDilutedNetLossPerShareDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Sale of Stock [Domain]", "terseLabel": "Sale of Stock", "documentation": "Sale of the entity's stock, including, but not limited to, initial public offering (IPO) and private placement." } } }, "auth_ref": [] }, "srt_MinimumMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2023", "localname": "MinimumMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfFairValueOfEachAwardIssuedEstimatedOnTheDateOfGrantUsingTheBlackscholesOptionPricingModelDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Minimum [Member]", "terseLabel": "Minimum [Member]" } } }, "auth_ref": [ "r218", "r219", "r220", "r221", "r260", "r387", "r407", "r440", "r441", "r499", "r501", "r503", "r504", "r506", "r525", "r526", "r537", "r542", "r547", "r552", "r612", "r623", "r624", "r625", "r626", "r627", "r628" ] }, "us-gaap_ProceedsFromIssuanceOfCommonStock": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ProceedsFromIssuanceOfCommonStock", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "verboseLabel": "Proceeds from the issuance of common stock to a related party, net of commissions", "terseLabel": "Net proceeds from sale of common stock", "label": "Proceeds from Issuance of Common Stock", "documentation": "The cash inflow from the additional capital contribution to the entity." } } }, "auth_ref": [ "r3" ] }, "us-gaap_AllocatedShareBasedCompensationExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AllocatedShareBasedCompensationExpense", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockbasedCompensationExpenseDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement, Expense", "terseLabel": "Total stock-based compensation expense", "documentation": "Amount of expense for award under share-based payment arrangement. Excludes amount capitalized." } } }, "auth_ref": [ "r292", "r300" ] }, "annx_RestrictedStockVestedDuringPeriodShares": { "xbrltype": "sharesItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "RestrictedStockVestedDuringPeriodShares", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "terseLabel": "Restricted stock vested in the period", "label": "Restricted Stock Vested During Period Shares", "documentation": "Restricted stock vested during period shares." } } }, "auth_ref": [] }, "us-gaap_FairValueInputsLevel1Member": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "FairValueInputsLevel1Member", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value, Inputs, Level 1 [Member]", "terseLabel": "Level 1 [Member]", "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date." } } }, "auth_ref": [ "r233", "r254", "r259", "r330", "r360", "r544", "r545", "r546" ] }, "srt_CounterpartyNameAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/srt/2023", "localname": "CounterpartyNameAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Counterparty Name [Axis]", "terseLabel": "Counterparty Name" } } }, "auth_ref": [ "r128", "r129", "r232", "r238", "r353", "r530", "r532" ] }, "us-gaap_CommonStockCapitalSharesReservedForFutureIssuance": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CommonStockCapitalSharesReservedForFutureIssuance", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail" ], "lang": { "en-us": { "role": { "label": "Common Stock, Capital Shares Reserved for Future Issuance", "terseLabel": "Common stock reserved", "verboseLabel": "Common stock for future issuance", "documentation": "Aggregate number of common shares reserved for future issuance." } } }, "auth_ref": [ "r18" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfRsuActivityUnder2020PlanDetail" ], "lang": { "en-us": { "role": { "periodEndLabel": "Number of Shares, Unvested as of September 30, 2023", "periodStartLabel": "Number of Shares, Unvested as of December 31, 2022", "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number", "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." } } }, "auth_ref": [ "r277", "r278" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfRsuActivityUnder2020PlanDetail" ], "lang": { "en-us": { "role": { "verboseLabel": "Number of shares granted", "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period", "terseLabel": "Number of Shares, Granted", "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)." } } }, "auth_ref": [ "r280" ] }, "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract", "lang": { "en-us": { "role": { "label": "Statement of Comprehensive Income [Abstract]" } } }, "auth_ref": [] }, "srt_RepurchaseAgreementCounterpartyNameDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2023", "localname": "RepurchaseAgreementCounterpartyNameDomain", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Counterparty Name [Domain]", "terseLabel": "Counterparty Name" } } }, "auth_ref": [ "r128", "r129", "r232", "r238", "r353", "r531", "r532" ] }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail" ], "lang": { "en-us": { "role": { "label": "All Award Types", "terseLabel": "Award Type", "documentation": "Award under share-based payment arrangement." } } }, "auth_ref": [ "r266", "r267", "r268", "r269", "r270", "r271", "r272", "r273", "r274", "r275", "r276", "r277", "r278", "r279", "r280", "r281", "r282", "r283", "r284", "r285", "r286", "r287", "r288", "r289", "r290", "r291" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfRsuActivityUnder2020PlanDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period", "terseLabel": "Number of Shares, Cancelled", "negatedLabel": "Number of Shares, Cancelled", "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period." } } }, "auth_ref": [ "r282" ] }, "us-gaap_StatementOfStockholdersEquityAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StatementOfStockholdersEquityAbstract", "lang": { "en-us": { "role": { "label": "Statement of Stockholders' Equity [Abstract]" } } }, "auth_ref": [] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfRsuActivityUnder2020PlanDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value", "terseLabel": "Weighted-Average Grant Date Fair Value Per Share, Granted", "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)." } } }, "auth_ref": [ "r280" ] }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail": { "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail" ], "lang": { "en-us": { "role": { "label": "Lessee, Operating Lease, Liability, to be Paid, Year One", "terseLabel": "2024", "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)." } } }, "auth_ref": [ "r347" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfRsuActivityUnder2020PlanDetail" ], "lang": { "en-us": { "role": { "periodEndLabel": "Weighted-Average Grant Date Fair Value Per Share, Granted Unvested as of September 30, 2023", "periodStartLabel": "Weighted-Average Grant Date Fair Value Per Share, Granted Unvested as of December 31, 2022", "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value", "documentation": "Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options." } } }, "auth_ref": [ "r277", "r278" ] }, "us-gaap_StatementOfCashFlowsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StatementOfCashFlowsAbstract", "lang": { "en-us": { "role": { "label": "Statement of Cash Flows [Abstract]" } } }, "auth_ref": [] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfRsuActivityUnder2020PlanDetail" ], "lang": { "en-us": { "role": { "negatedLabel": "Number of Shares, Vested", "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period", "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period." } } }, "auth_ref": [ "r281" ] }, "us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "label": "Stock Issued During Period, Shares, Employee Stock Purchase Plans", "terseLabel": "Issuance of common stock per Employee Stock Purchase Plan purchase, Shares", "documentation": "Number of shares issued during the period as a result of an employee stock purchase plan." } } }, "auth_ref": [ "r8", "r57", "r58", "r81" ] }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearThree", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail": { "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail" ], "lang": { "en-us": { "role": { "label": "Lessee, Operating Lease, Liability, to be Paid, Year Three", "terseLabel": "2026", "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)." } } }, "auth_ref": [ "r347" ] }, "us-gaap_CommonStockIncludingAdditionalPaidInCapitalNetOfDiscountAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CommonStockIncludingAdditionalPaidInCapitalNetOfDiscountAbstract", "lang": { "en-us": { "role": { "label": "Common Stocks, Including Additional Paid in Capital, Net of Discount [Abstract]" } } }, "auth_ref": [] }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail": { "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail" ], "lang": { "en-us": { "role": { "label": "Lessee, Operating Lease, Liability, to be Paid, Year Two", "terseLabel": "2025", "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)." } } }, "auth_ref": [ "r347" ] }, "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StockIssuedDuringPeriodSharesStockOptionsExercised", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "terseLabel": "Exercise of stock options, Shares", "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period", "negatedLabel": "Number of shares, Stock options exercised", "documentation": "Number of share options (or share units) exercised during the current period." } } }, "auth_ref": [ "r8", "r57", "r58", "r81", "r274" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfRsuActivityUnder2020PlanDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Weighted-Average Grant Date Fair Value Per Share, Vested", "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value", "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." } } }, "auth_ref": [ "r281" ] }, "us-gaap_SupplementalCashFlowInformationAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "SupplementalCashFlowInformationAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Supplemental Cash Flow Information [Abstract]", "terseLabel": "Supplemental disclosure of cash flow information:" } } }, "auth_ref": [] }, "us-gaap_StockholdersEquity": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StockholdersEquity", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "label": "Equity, Attributable to Parent", "periodEndLabel": "Ending Balance, Values", "periodStartLabel": "Beginning Balance, Values", "totalLabel": "Total stockholders\u2019 equity", "documentation": "Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest." } } }, "auth_ref": [ "r58", "r61", "r62", "r74", "r452", "r469", "r493", "r494", "r551", "r563", "r591", "r602", "r618", "r637" ] }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail": { "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail" ], "lang": { "en-us": { "role": { "terseLabel": "2023 (remaining three months)", "label": "Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year", "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." } } }, "auth_ref": [ "r620" ] }, "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesTables" ], "lang": { "en-us": { "role": { "label": "Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]", "terseLabel": "Future Minimum Lease Payments and Related Lease Liabilities", "documentation": "Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position." } } }, "auth_ref": [ "r620" ] }, "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "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 loss to net cash used in operating activities:" } } }, "auth_ref": [] }, "us-gaap_TypeOfArrangementAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "TypeOfArrangementAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity", "http://annexonbio.com/20230930/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquityParenthetical" ], "lang": { "en-us": { "role": { "label": "Collaborative Arrangement and Arrangement Other than Collaborative [Axis]", "terseLabel": "Collaborative Arrangement and Arrangement Other than Collaborative", "documentation": "Information by collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations." } } }, "auth_ref": [ "r312" ] }, "us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ScheduleOfAccruedLiabilitiesTableTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsTables" ], "lang": { "en-us": { "role": { "label": "Schedule of Accrued Liabilities [Table Text Block]", "terseLabel": "Summary of Accrued Liabilities", "documentation": "Tabular disclosure of the components of accrued liabilities." } } }, "auth_ref": [] }, "us-gaap_RestrictedStockUnitsRSUMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "RestrictedStockUnitsRSUMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareSummaryOfOutstandingPotentiallyDilutiveSharesExcludedFromCalculationOfDilutedNetLossPerShareDetail" ], "lang": { "en-us": { "role": { "label": "Restricted Stock Units (RSUs) [Member]", "terseLabel": "Restricted Stock Units [Member]", "verboseLabel": "Unvested Restricted Stock Units [Member]", "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." } } }, "auth_ref": [] }, "us-gaap_PaymentsOfStockIssuanceCosts": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "PaymentsOfStockIssuanceCosts", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0, "order": 2.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "negatedLabel": "Payment of common stock issuance costs", "verboseLabel": "Payment of issuance costs", "terseLabel": "Payment of issuance costs related to 2021 ATM program", "label": "Payments of Stock Issuance Costs", "documentation": "The cash outflow for cost incurred directly with the issuance of an equity security." } } }, "auth_ref": [ "r24" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant", "terseLabel": "Options available for future grant", "verboseLabel": "Common stock reserved", "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." } } }, "auth_ref": [ "r44" ] }, "dei_AmendmentFlag": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "AmendmentFlag", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Amendment Flag", "terseLabel": "Amendment Flag", "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission." } } }, "auth_ref": [] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value", "terseLabel": "Intrinsic value of options exercised", "documentation": "Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares." } } }, "auth_ref": [ "r284" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period", "negatedLabel": "Number of shares, Stock options forfeited", "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." } } }, "auth_ref": [ "r275" ] }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value, Recurring and Nonrecurring [Table]", "terseLabel": "Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]", "documentation": "Disclosure of information about asset and liability measured at fair value on recurring and nonrecurring basis." } } }, "auth_ref": [ "r329", "r330", "r331" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value", "terseLabel": "Aggregate intrinsic value", "documentation": "Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding." } } }, "auth_ref": [ "r44" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number", "periodEndLabel": "Number of shares, Ending balance", "periodStartLabel": "Number of shares, Beginning balance", "verboseLabel": "Common stock reserved", "documentation": "Number of options outstanding, including both vested and non-vested options." } } }, "auth_ref": [ "r269", "r270" ] }, "us-gaap_MoneyMarketFundsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "MoneyMarketFundsMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Money Market Funds [Member]", "terseLabel": "Money Market Funds [Member]", "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." } } }, "auth_ref": [ "r614" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price", "periodEndLabel": "Weighted- average exercise price per share, Ending balance", "periodStartLabel": "Weighted- average exercise price per share, Beginning balance", "documentation": "Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan." } } }, "auth_ref": [ "r269", "r270" ] }, "dei_DocumentFiscalYearFocus": { "xbrltype": "gYearItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "DocumentFiscalYearFocus", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Document Fiscal Year Focus", "terseLabel": "Document Fiscal Year Focus", "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." } } }, "auth_ref": [] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number", "terseLabel": "Number of shares, Exercisable", "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." } } }, "auth_ref": [ "r271" ] }, "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "FairValueMeasurementsFairValueHierarchyDomain", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value Hierarchy and NAV [Domain]", "terseLabel": "Fair Value Hierarchy and NAV", "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value." } } }, "auth_ref": [ "r233", "r254", "r255", "r256", "r257", "r258", "r259", "r360", "r361", "r362", "r540", "r541", "r544", "r545", "r546" ] }, "us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfComprehensiveLoss": { "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfComprehensiveLoss", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "label": "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax", "terseLabel": "Foreign currency translation adjustment", "totalLabel": "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total", "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." } } }, "auth_ref": [ "r2" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price", "terseLabel": "Weighted- average exercise price per share, Exercisable", "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." } } }, "auth_ref": [ "r271" ] }, "dei_DocumentFiscalPeriodFocus": { "xbrltype": "fiscalPeriodItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "DocumentFiscalPeriodFocus", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Document Fiscal Period Focus", "terseLabel": "Document Fiscal Period Focus", "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." } } }, "auth_ref": [] }, "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlans" ], "lang": { "en-us": { "role": { "terseLabel": "Equity Incentive Plans", "label": "Share-Based Payment Arrangement [Text Block]", "documentation": "The entire disclosure for share-based payment arrangement." } } }, "auth_ref": [ "r261", "r265", "r293", "r294", "r296", "r548" ] }, "us-gaap_LossContingenciesByNatureOfContingencyAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LossContingenciesByNatureOfContingencyAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Loss Contingency Nature [Axis]", "terseLabel": "Loss Contingency Nature", "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." } } }, "auth_ref": [ "r217", "r218", "r219", "r222", "r606", "r607" ] }, "us-gaap_AvailableForSaleSecuritiesDebtSecurities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AvailableForSaleSecuritiesDebtSecurities", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail": { "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale", "terseLabel": "Aggregate Fair Value", "totalLabel": "Debt Securities, Available-for-sale, Total", "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r172", "r209", "r389", "r596" ] }, "us-gaap_AwardTypeAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AwardTypeAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail" ], "lang": { "en-us": { "role": { "label": "Award Type [Axis]", "terseLabel": "Award Type", "documentation": "Information by type of award under share-based payment arrangement." } } }, "auth_ref": [ "r266", "r267", "r268", "r269", "r270", "r271", "r272", "r273", "r274", "r275", "r276", "r277", "r278", "r279", "r280", "r281", "r282", "r283", "r284", "r285", "r286", "r287", "r288", "r289", "r290", "r291" ] }, "us-gaap_StockholdersEquityAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StockholdersEquityAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Equity, Attributable to Parent [Abstract]", "terseLabel": "Stockholders\u2019 equity:" } } }, "auth_ref": [] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfFairValueOfEachAwardIssuedEstimatedOnTheDateOfGrantUsingTheBlackscholesOptionPricingModelDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate", "terseLabel": "Dividend yield", "documentation": "The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term." } } }, "auth_ref": [ "r289" ] }, "us-gaap_EarningsPerShareDiluted": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "EarningsPerShareDiluted", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations" ], "lang": { "en-us": { "role": { "terseLabel": "Net loss per share, diluted", "label": "Earnings Per Share, Diluted", "totalLabel": "Earnings Per Share, Diluted, Total", "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." } } }, "auth_ref": [ "r120", "r135", "r136", "r137", "r138", "r139", "r146", "r149", "r150", "r151", "r155", "r326", "r327", "r391", "r406", "r534" ] }, "us-gaap_StockholdersEquityNoteDisclosureTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StockholdersEquityNoteDisclosureTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquity" ], "lang": { "en-us": { "role": { "label": "Equity [Text Block]", "terseLabel": "Stockholders' Equity", "documentation": "The entire disclosure for equity." } } }, "auth_ref": [ "r78", "r125", "r235", "r237", "r239", "r240", "r241", "r242", "r243", "r244", "r245", "r246", "r247", "r249", "r252", "r324", "r495", "r497", "r513" ] }, "us-gaap_StockholdersEquityNoteAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StockholdersEquityNoteAbstract", "lang": { "en-us": { "role": { "label": "Stockholders' Equity Note [Abstract]" } } }, "auth_ref": [] }, "us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Purchase of shares", "label": "Class of Warrant or Right, Number of Securities Called by Warrants or Rights", "verboseLabel": "Warrants exercised", "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." } } }, "auth_ref": [ "r251" ] }, "us-gaap_CommercialPaperMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CommercialPaperMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Commercial Paper [Member]", "terseLabel": "Commercial Paper [Member]", "documentation": "Unsecured promissory note (generally negotiable) that provides institutions with short-term funds." } } }, "auth_ref": [ "r77", "r557", "r558", "r559", "r560" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfFairValueOfEachAwardIssuedEstimatedOnTheDateOfGrantUsingTheBlackscholesOptionPricingModelDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockbasedCompensationExpenseDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]", "terseLabel": "Share Based Compensation Arrangement By Share Based Payment Award [Line Items]", "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." } } }, "auth_ref": [ "r262", "r264", "r266", "r267", "r268", "r269", "r270", "r271", "r272", "r273", "r274", "r275", "r276", "r277", "r278", "r279", "r280", "r281", "r282", "r283", "r284", "r285", "r286", "r287", "r288", "r289", "r290", "r291" ] }, "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfFairValueOfEachAwardIssuedEstimatedOnTheDateOfGrantUsingTheBlackscholesOptionPricingModelDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockbasedCompensationExpenseDetail" ], "lang": { "en-us": { "role": { "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]", "documentation": "Disclosure of information about share-based payment arrangement." } } }, "auth_ref": [ "r262", "r264", "r266", "r267", "r268", "r269", "r270", "r271", "r272", "r273", "r274", "r275", "r276", "r277", "r278", "r279", "r280", "r281", "r282", "r283", "r284", "r285", "r286", "r287", "r288", "r289", "r290", "r291" ] }, "us-gaap_LossContingencyAccrualAtCarryingValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LossContingencyAccrualAtCarryingValue", "crdr": "credit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Loss Contingency Accrual", "terseLabel": "Loss contingency accrual", "periodStartLabel": "Loss Contingency Accrual, Beginning Balance", "periodEndLabel": "Loss Contingency Accrual, Ending Balance", "documentation": "Amount of loss contingency liability." } } }, "auth_ref": [ "r217", "r572" ] }, "us-gaap_SharesIssuedPricePerShare": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "SharesIssuedPricePerShare", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Shares issued price per share", "label": "Shares Issued, Price Per Share", "documentation": "Per share or per unit amount of equity securities issued." } } }, "auth_ref": [] }, "us-gaap_FairValueInputsLevel2Member": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "FairValueInputsLevel2Member", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value, Inputs, Level 2 [Member]", "terseLabel": "Level 2 [Member]", "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." } } }, "auth_ref": [ "r233", "r254", "r259", "r330", "r361", "r540", "r541", "r544", "r545", "r546" ] }, "us-gaap_AccruedLiabilitiesCurrentAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AccruedLiabilitiesCurrentAbstract", "lang": { "en-us": { "role": { "label": "Accrued Liabilities, Current [Abstract]" } } }, "auth_ref": [] }, "us-gaap_ComprehensiveIncomeNetOfTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ComprehensiveIncomeNetOfTax", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfComprehensiveLoss": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfComprehensiveLoss" ], "lang": { "en-us": { "role": { "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent", "totalLabel": "Comprehensive loss", "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." } } }, "auth_ref": [ "r22", "r113", "r115", "r119", "r390", "r405" ] }, "us-gaap_CommonStockMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CommonStockMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "label": "Common Stock [Member]", "terseLabel": "Common Stock [Member]", "documentation": "Stock that is subordinate to all other stock of the issuer." } } }, "auth_ref": [ "r553", "r554", "r555", "r557", "r558", "r559", "r560", "r592", "r593", "r616", "r635", "r637" ] }, "us-gaap_ConstructionInProgressMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ConstructionInProgressMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail" ], "lang": { "en-us": { "role": { "label": "Construction in Progress [Member]", "documentation": "Structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service." } } }, "auth_ref": [] }, "us-gaap_ArrangementsAndNonarrangementTransactionsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ArrangementsAndNonarrangementTransactionsMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity", "http://annexonbio.com/20230930/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquityParenthetical" ], "lang": { "en-us": { "role": { "label": "Collaborative Arrangement and Arrangement Other than Collaborative [Domain]", "terseLabel": "Collaborative Arrangement and Arrangement Other than Collaborative", "documentation": "Collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations." } } }, "auth_ref": [ "r312" ] }, "us-gaap_CashEquivalentsAtCarryingValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CashEquivalentsAtCarryingValue", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails": { "parentTag": "us-gaap_CashAndCashEquivalentsAtCarryingValue", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails" ], "lang": { "en-us": { "role": { "label": "Cash Equivalents, at Carrying Value", "terseLabel": "Cash equivalents", "totalLabel": "Cash Equivalents, at Carrying Value, Total", "documentation": "Amount of 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." } } }, "auth_ref": [ "r580", "r632" ] }, "us-gaap_FurnitureAndFixturesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "FurnitureAndFixturesMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail" ], "lang": { "en-us": { "role": { "label": "Furniture and Fixtures [Member]", "terseLabel": "Furniture and Fixtures [Member]", "documentation": "Equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases." } } }, "auth_ref": [] }, "us-gaap_CashAndCashEquivalentsAtCarryingValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CashAndCashEquivalentsAtCarryingValue", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0, "order": 0.0 }, "http://annexonbio.com/20230930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails": { "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Cash and Cash Equivalents, at Carrying Value", "terseLabel": "Cash and cash equivalents", "totalLabel": "Cash and cash equivalents", "periodStartLabel": "Cash and Cash Equivalents, at Carrying Value, Beginning Balance", "periodEndLabel": "Cash and Cash Equivalents, at Carrying Value, Ending Balance", "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." } } }, "auth_ref": [ "r26", "r99", "r528" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDescription": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardDescription", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Description", "terseLabel": "Stock option grants description", "documentation": "Description of terms of share-based payment arrangement. Includes, but is not limited to, type of award or grantee and reason for issuance." } } }, "auth_ref": [ "r43", "r45" ] }, "us-gaap_SubsidiarySaleOfStockAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "SubsidiarySaleOfStockAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareSummaryOfOutstandingPotentiallyDilutiveSharesExcludedFromCalculationOfDilutedNetLossPerShareDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Sale of Stock [Axis]", "terseLabel": "Sale of Stock", "documentation": "Information by type of sale of the entity's stock." } } }, "auth_ref": [] }, "us-gaap_CashCashEquivalentsAndShortTermInvestments": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CashCashEquivalentsAndShortTermInvestments", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureOrganizationAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Cash, Cash Equivalents, and Short-Term Investments", "terseLabel": "Cash and cash equivalents and short-term investments", "totalLabel": "Cash, Cash Equivalents, and Short-term Investments, Total", "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." } } }, "auth_ref": [ "r583" ] }, "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue", "crdr": "credit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "label": "APIC, Share-Based Payment Arrangement, Increase for Cost Recognition", "terseLabel": "Stock-based compensation", "totalLabel": "APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total", "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement." } } }, "auth_ref": [ "r49", "r50", "r263" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfRsuActivityUnder2020PlanDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value", "terseLabel": "Weighted-Average Grant Date Fair Value Per Share, Cancelled", "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." } } }, "auth_ref": [ "r282" ] }, "us-gaap_AccountsPayableCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AccountsPayableCurrent", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Accounts Payable, Current", "terseLabel": "Accounts payable", "totalLabel": "Accounts Payable, Current, Total", "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)." } } }, "auth_ref": [ "r13", "r551" ] }, "dei_EntitySmallBusiness": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntitySmallBusiness", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Small Business", "terseLabel": "Entity Small Business", "documentation": "Indicates that the company is a Smaller Reporting Company (SRC)." } } }, "auth_ref": [ "r565" ] }, "us-gaap_PropertyPlantAndEquipmentTypeDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "PropertyPlantAndEquipmentTypeDomain", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail" ], "lang": { "en-us": { "role": { "label": "Long-Lived Tangible Asset [Domain]", "terseLabel": "Long-Lived Tangible Asset", "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." } } }, "auth_ref": [ "r75" ] }, "dei_EntityFilerCategory": { "xbrltype": "filerCategoryItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityFilerCategory", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Filer Category", "terseLabel": "Entity Filer Category", "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." } } }, "auth_ref": [ "r565" ] }, "us-gaap_EmployeeStockOptionMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "EmployeeStockOptionMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareSummaryOfOutstandingPotentiallyDilutiveSharesExcludedFromCalculationOfDilutedNetLossPerShareDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Stock Options Issued and Outstanding [Member]", "verboseLabel": "Stock Options to Purchase Common Stock [Member]", "label": "Stock Options Issued and Outstanding [Member]", "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." } } }, "auth_ref": [] }, "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfComprehensiveLoss" ], "lang": { "en-us": { "role": { "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]", "terseLabel": "Other comprehensive gain (loss):" } } }, "auth_ref": [] }, "us-gaap_GainContingenciesLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "GainContingenciesLineItems", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Gain Contingencies [Line Items]", "terseLabel": "Gain Contingencies [Line Items]", "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." } } }, "auth_ref": [ "r608" ] }, "dei_EntityShellCompany": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityShellCompany", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Shell Company", "terseLabel": "Entity Shell Company", "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act." } } }, "auth_ref": [ "r565" ] }, "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail2": { "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail" ], "lang": { "en-us": { "role": { "label": "Lessee, Operating Lease, Liability, Undiscounted Excess Amount", "negatedLabel": "Less: Imputed interest", "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease." } } }, "auth_ref": [ "r347" ] }, "us-gaap_CommonStockValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CommonStockValue", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Common Stock, Value, Issued", "terseLabel": "Common stock", "totalLabel": "Common Stock, Value, Issued, Total", "periodStartLabel": "Common Stock, Value, Issued, Beginning Balance", "periodEndLabel": "Common Stock, Value, Issued, Ending Balance", "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." } } }, "auth_ref": [ "r58", "r397", "r551" ] }, "us-gaap_OperatingLeaseLiability": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OperatingLeaseLiability", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail2": { "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail" ], "lang": { "en-us": { "role": { "label": "Operating Lease, Liability", "terseLabel": "Lease liabilities", "totalLabel": "Operating Lease, Liability, Total", "verboseLabel": "Lease liability", "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease." } } }, "auth_ref": [ "r341" ] }, "us-gaap_OperatingLeaseLiabilityCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OperatingLeaseLiabilityCurrent", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Operating Lease, Liability, Current", "terseLabel": "Operating lease liabilities, current", "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as current." } } }, "auth_ref": [ "r341" ] }, "us-gaap_ProceedsFromStockPlans": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ProceedsFromStockPlans", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0, "order": 9.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Proceeds from Stock Plans", "terseLabel": "Proceeds from Employee Stock Purchase Plan purchases", "documentation": "The cash inflow associated with the amount received from the stock plan during the period." } } }, "auth_ref": [ "r3" ] }, "us-gaap_ProceedsFromStockOptionsExercised": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ProceedsFromStockOptionsExercised", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "terseLabel": "Proceeds from the exercise of common stock options", "label": "Proceeds from Stock Options Exercised", "documentation": "Amount of cash inflow from exercise of option under share-based payment arrangement." } } }, "auth_ref": [ "r3", "r12" ] }, "us-gaap_PropertyPlantAndEquipmentTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "PropertyPlantAndEquipmentTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsTables" ], "lang": { "en-us": { "role": { "label": "Property, Plant and Equipment [Table Text Block]", "terseLabel": "Summary of Property and Equipment, Net", "documentation": "Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation." } } }, "auth_ref": [ "r6" ] }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "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]", "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." } } }, "auth_ref": [ "r329", "r330", "r331" ] }, "us-gaap_OperatingLeaseLiabilityNoncurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OperatingLeaseLiabilityNoncurrent", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_Liabilities", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Operating Lease, Liability, Noncurrent", "terseLabel": "Operating lease liabilities, non-current", "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent." } } }, "auth_ref": [ "r341" ] }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisAbstract", "lang": { "en-us": { "role": { "label": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]" } } }, "auth_ref": [] }, "us-gaap_IncomeStatementLocationAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "IncomeStatementLocationAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockbasedCompensationExpenseDetail" ], "lang": { "en-us": { "role": { "label": "Income Statement Location [Axis]", "terseLabel": "Income Statement Location", "documentation": "Information by location in the income statement." } } }, "auth_ref": [ "r213", "r214", "r477" ] }, "us-gaap_ResearchAndDevelopmentExpenseMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ResearchAndDevelopmentExpenseMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockbasedCompensationExpenseDetail" ], "lang": { "en-us": { "role": { "label": "Research and Development Expense [Member]", "terseLabel": "Research and Development [Member]", "documentation": "Primary financial statement caption in which the reported facts about research and development expense have been included." } } }, "auth_ref": [] }, "us-gaap_WarrantsAndRightsOutstandingMaturityDate": { "xbrltype": "dateItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "WarrantsAndRightsOutstandingMaturityDate", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Warrants and Rights Outstanding, Maturity Date", "terseLabel": "Warrant expiration date", "documentation": "Expiration date 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 YYYY-MM-DD format." } } }, "auth_ref": [ "r617" ] }, "us-gaap_IncomeStatementLocationDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "IncomeStatementLocationDomain", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockbasedCompensationExpenseDetail" ], "lang": { "en-us": { "role": { "label": "Income Statement Location [Domain]", "terseLabel": "Income Statement Location", "documentation": "Location in the income statement." } } }, "auth_ref": [ "r214", "r477" ] }, "us-gaap_SubleaseIncome": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "SubleaseIncome", "crdr": "credit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Sublease Income", "terseLabel": "Sublease income", "documentation": "Amount of sublease income excluding finance and operating lease expense." } } }, "auth_ref": [ "r344", "r550" ] }, "us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AvailableForSaleSecuritiesDebtSecuritiesCurrent", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Current", "terseLabel": "Short-term investments", "totalLabel": "Debt Securities, Available-for-sale, Current, Total", "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." } } }, "auth_ref": [ "r169", "r209" ] }, "us-gaap_LossContingencyNatureDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LossContingencyNatureDomain", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Loss Contingency, Nature [Domain]", "terseLabel": "Loss Contingency, Nature", "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." } } }, "auth_ref": [ "r217", "r218", "r219", "r222", "r606", "r607" ] }, "us-gaap_NetCashProvidedByUsedInFinancingActivities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "NetCashProvidedByUsedInFinancingActivities", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Net Cash Provided by (Used in) Financing Activities", "totalLabel": "Net cash provided by financing activities", "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." } } }, "auth_ref": [ "r123" ] }, "us-gaap_OperatingLeaseCost": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OperatingLeaseCost", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Operating lease costs", "label": "Operating Lease, Cost", "documentation": "Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability." } } }, "auth_ref": [ "r343", "r550" ] }, "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Net Cash Provided by (Used in) Financing Activities [Abstract]", "terseLabel": "Financing activities:" } } }, "auth_ref": [] }, "us-gaap_NetCashProvidedByUsedInInvestingActivities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "NetCashProvidedByUsedInInvestingActivities", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "totalLabel": "Net cash provided by investing activities", "label": "Net Cash Provided by (Used in) Investing Activities", "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." } } }, "auth_ref": [ "r123" ] }, "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Net Cash Provided by (Used in) Investing Activities [Abstract]", "terseLabel": "Investing activities:" } } }, "auth_ref": [] }, "us-gaap_AccountingPoliciesAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AccountingPoliciesAbstract", "lang": { "en-us": { "role": { "label": "Accounting Policies [Abstract]" } } }, "auth_ref": [] }, "us-gaap_NetCashProvidedByUsedInOperatingActivities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "NetCashProvidedByUsedInOperatingActivities", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Net Cash Provided by (Used in) Operating Activities", "totalLabel": "Net cash used in operating activities", "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." } } }, "auth_ref": [ "r69", "r70", "r71" ] }, "annx_UnvestedRestrictedStockUnitsOutstandingMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "UnvestedRestrictedStockUnitsOutstandingMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail" ], "lang": { "en-us": { "role": { "documentation": "Unvested restricted stock units outstanding.", "label": "Unvested Restricted Stock Units Outstanding [Member]", "terseLabel": "Unvested Restricted Stock Units Outstanding [Member]" } } }, "auth_ref": [] }, "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Net Cash Provided by (Used in) Operating Activities [Abstract]", "terseLabel": "Operating activities:" } } }, "auth_ref": [] }, "us-gaap_Assets": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "Assets", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Assets", "totalLabel": "Total assets", "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." } } }, "auth_ref": [ "r85", "r103", "r126", "r159", "r162", "r164", "r201", "r223", "r224", "r225", "r226", "r227", "r228", "r229", "r230", "r231", "r313", "r315", "r332", "r394", "r463", "r551", "r563", "r610", "r611", "r621" ] }, "us-gaap_ResearchAndDevelopmentArrangementMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ResearchAndDevelopmentArrangementMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Research and Development Arrangement [Member]", "terseLabel": "Research and Development Arrangement [Member]", "documentation": "Contractual obligation to provide funding of research and development costs over periods that initially exceed one year or the normal operating cycle, if longer." } } }, "auth_ref": [] }, "us-gaap_LossContingencyPendingClaimsNumber": { "xbrltype": "integerItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LossContingencyPendingClaimsNumber", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Loss Contingency, Pending Claims, Number", "terseLabel": "Loss contingency pending claims", "periodStartLabel": "Loss Contingency, Pending Claims, Number, Beginning Balance", "periodEndLabel": "Loss Contingency, Pending Claims, Number, Ending Balance", "documentation": "Number of pending claims pertaining to a loss contingency." } } }, "auth_ref": [ "r606", "r607" ] }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LesseeOperatingLeaseLiabilityPaymentsDue", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail": { "parentTag": null, "weight": null, "order": null, "root": true }, "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail2": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail" ], "lang": { "en-us": { "role": { "label": "Lessee, Operating Lease, Liability, to be Paid", "totalLabel": "Total undiscounted lease payments", "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease." } } }, "auth_ref": [ "r347" ] }, "us-gaap_EarningsPerShareTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "EarningsPerShareTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShare1" ], "lang": { "en-us": { "role": { "terseLabel": "Net Loss Per Share", "label": "Earnings Per Share [Text Block]", "documentation": "The entire disclosure for earnings per share." } } }, "auth_ref": [ "r143", "r152", "r153", "r154" ] }, "us-gaap_OtherLiabilitiesCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OtherLiabilitiesCurrent", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Other Liabilities, Current", "terseLabel": "Other current liabilities", "totalLabel": "Other Liabilities, Current, Total", "documentation": "Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer." } } }, "auth_ref": [ "r15", "r551" ] }, "us-gaap_OperatingIncomeLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OperatingIncomeLoss", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations": { "parentTag": "us-gaap_NetIncomeLoss", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations" ], "lang": { "en-us": { "role": { "totalLabel": "Loss from operations", "label": "Operating Income (Loss)", "terseLabel": "Loss from operations", "documentation": "The net result for the period of deducting operating expenses from operating revenues." } } }, "auth_ref": [ "r159", "r161", "r163", "r165", "r536" ] }, "dei_CityAreaCode": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "CityAreaCode", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "City Area Code", "terseLabel": "City Area Code", "documentation": "Area code of city" } } }, "auth_ref": [] }, "us-gaap_CorporateBondSecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CorporateBondSecuritiesMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Corporate Bond Securities [Member]", "terseLabel": "Corporate Bonds [Member]", "documentation": "This category includes information about long-term debt securities that are issued by either a domestic or foreign corporate business entity with a date certain promise of repayment and a return to the holder for the time value of money (for example, variable or fixed interest, original issue discount)." } } }, "auth_ref": [] }, "srt_StatementGeographicalAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/srt/2023", "localname": "StatementGeographicalAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Geographical [Axis]", "terseLabel": "Geographical" } } }, "auth_ref": [ "r166", "r167", "r437", "r438", "r439", "r500", "r502", "r505", "r507", "r514", "r516", "r517", "r518", "r519", "r520", "r521", "r522", "r523", "r524", "r527", "r543", "r555", "r613", "r633" ] }, "us-gaap_ClassOfStockDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ClassOfStockDomain", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Class of Stock [Domain]", "terseLabel": "Class of Stock", "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." } } }, "auth_ref": [ "r94", "r104", "r105", "r106", "r126", "r146", "r147", "r149", "r151", "r157", "r158", "r201", "r223", "r225", "r226", "r227", "r230", "r231", "r236", "r237", "r240", "r243", "r250", "r332", "r415", "r416", "r417", "r418", "r424", "r425", "r426", "r427", "r428", "r429", "r430", "r431", "r432", "r433", "r434", "r436", "r450", "r472", "r492", "r508", "r509", "r510", "r511", "r512", "r571", "r590", "r595" ] }, "dei_LocalPhoneNumber": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "LocalPhoneNumber", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Local Phone Number", "terseLabel": "Local Phone Number", "documentation": "Local phone number for entity." } } }, "auth_ref": [] }, "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AvailableForSaleDebtSecuritiesAmortizedCostBasis", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Amortized Cost", "totalLabel": "Amortized Cost", "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)." } } }, "auth_ref": [ "r171", "r209", "r393" ] }, "us-gaap_ResearchAndDevelopmentExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ResearchAndDevelopmentExpense", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations": { "parentTag": "us-gaap_OperatingExpenses", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations" ], "lang": { "en-us": { "role": { "label": "Research and Development Expense", "terseLabel": "Research and development", "totalLabel": "Research and Development Expense, Total", "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." } } }, "auth_ref": [ "r55", "r301", "r629" ] }, "us-gaap_RelatedPartyTransactionsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "RelatedPartyTransactionsAbstract", "lang": { "en-us": { "role": { "label": "Related Party Transactions [Abstract]" } } }, "auth_ref": [] }, "srt_SegmentGeographicalDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2023", "localname": "SegmentGeographicalDomain", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Geographical [Domain]", "terseLabel": "Geographical" } } }, "auth_ref": [ "r166", "r167", "r437", "r438", "r439", "r500", "r502", "r505", "r507", "r516", "r517", "r518", "r519", "r520", "r521", "r522", "r523", "r524", "r527", "r543", "r555", "r613", "r633" ] }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period", "terseLabel": "Option expiry period", "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." } } }, "auth_ref": [ "r549" ] }, "dei_Security12bTitle": { "xbrltype": "securityTitleItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "Security12bTitle", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Title of 12(b) Security", "terseLabel": "Title of 12(b) Security", "documentation": "Title of a 12(b) registered security." } } }, "auth_ref": [ "r564" ] }, "annx_PercentageOfNumberOfSharesOfCapitalStockOutstandingOnLastDayOfPrecedingYear": { "xbrltype": "percentItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "PercentageOfNumberOfSharesOfCapitalStockOutstandingOnLastDayOfPrecedingYear", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Percentage of number of shares of capital stock outstanding on last day of preceding year.", "label": "Percentage Of Number Of Shares Of Capital Stock Outstanding On Last Day Of Preceding Year", "terseLabel": "Percentage of number of shares of capital stock outstanding on last day of preceding year" } } }, "auth_ref": [] }, "us-gaap_IncomeStatementAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "IncomeStatementAbstract", "lang": { "en-us": { "role": { "label": "Income Statement [Abstract]" } } }, "auth_ref": [] }, "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract", "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement [Abstract]" } } }, "auth_ref": [] }, "us-gaap_Cash": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "Cash", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails": { "parentTag": "us-gaap_CashAndCashEquivalentsAtCarryingValue", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails" ], "lang": { "en-us": { "role": { "label": "Cash", "terseLabel": "Cash", "periodStartLabel": "Cash, Beginning Balance", "periodEndLabel": "Cash, Ending Balance", "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. Excludes cash and cash equivalents within disposal group and discontinued operation." } } }, "auth_ref": [ "r88", "r396", "r435", "r458", "r551", "r563", "r580" ] }, "us-gaap_OtherAccruedLiabilitiesCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OtherAccruedLiabilitiesCurrent", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfAccruedLiabilitiesDetail": { "parentTag": "us-gaap_AccruedLiabilitiesCurrent", "weight": 1.0, "order": 4.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfAccruedLiabilitiesDetail" ], "lang": { "en-us": { "role": { "label": "Other Accrued Liabilities, Current", "terseLabel": "Other accrued expenses", "documentation": "Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer." } } }, "auth_ref": [ "r15" ] }, "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "WeightedAverageNumberOfDilutedSharesOutstanding", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations" ], "lang": { "en-us": { "role": { "terseLabel": "Weighted-average shares used in computing net loss per share, diluted", "label": "Weighted Average Number of Shares Outstanding, Diluted", "totalLabel": "Weighted Average Number of Shares Outstanding, Diluted, Total", "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." } } }, "auth_ref": [ "r145", "r151" ] }, "us-gaap_AssetsCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AssetsCurrent", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_Assets", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Assets, Current", "totalLabel": "Total current assets", "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." } } }, "auth_ref": [ "r97", "r109", "r126", "r201", "r223", "r224", "r225", "r226", "r227", "r228", "r229", "r230", "r231", "r313", "r315", "r332", "r551", "r610", "r611", "r621" ] }, "us-gaap_DepreciationDepletionAndAmortization": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "DepreciationDepletionAndAmortization", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Depreciation, Depletion and Amortization", "terseLabel": "Depreciation and amortization", "totalLabel": "Depreciation, Depletion and Amortization, Total", "documentation": "The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets." } } }, "auth_ref": [ "r5", "r160" ] }, "dei_TradingSymbol": { "xbrltype": "tradingSymbolItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "TradingSymbol", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Trading Symbol", "terseLabel": "Trading Symbol", "documentation": "Trading symbol of an instrument as listed on an exchange." } } }, "auth_ref": [] }, "annx_PercentageOfGrossProceedsOfCommonStockToBePaid": { "xbrltype": "percentItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "PercentageOfGrossProceedsOfCommonStockToBePaid", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Percentage of gross proceeds of common stock to be paid.", "label": "Percentage Of Gross Proceeds Of Common Stock To Be Paid", "terseLabel": "Percentage of gross proceeds of common stock to be paid" } } }, "auth_ref": [] }, "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "WeightedAverageNumberOfSharesOutstandingBasic", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations" ], "lang": { "en-us": { "role": { "terseLabel": "Weighted-average shares used in computing net loss per share, basic", "label": "Weighted Average Number of Shares Outstanding, Basic", "totalLabel": "Weighted Average Number of Shares Outstanding, Basic, Total", "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." } } }, "auth_ref": [ "r144", "r151" ] }, "dei_SecurityExchangeName": { "xbrltype": "edgarExchangeCodeItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "SecurityExchangeName", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Security Exchange Name", "terseLabel": "Security Exchange Name", "documentation": "Name of the Exchange on which a security is registered." } } }, "auth_ref": [ "r566" ] }, "us-gaap_AssetsCurrentAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AssetsCurrentAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Assets, Current [Abstract]", "terseLabel": "Current assets:" } } }, "auth_ref": [] }, "us-gaap_SubsequentEventsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "SubsequentEventsAbstract", "lang": { "en-us": { "role": { "label": "Subsequent Events [Abstract]" } } }, "auth_ref": [] }, "us-gaap_ScheduleOfStockByClassTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ScheduleOfStockByClassTable", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail" ], "lang": { "en-us": { "role": { "label": "Schedule of Stock by Class [Table]", "terseLabel": "Schedule Of Stock By Class [Table]", "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." } } }, "auth_ref": [ "r36", "r37", "r38", "r39", "r40", "r41", "r42", "r79", "r80", "r81", "r104", "r105", "r106", "r157", "r236", "r237", "r238", "r240", "r243", "r248", "r250", "r415", "r416", "r417", "r418", "r542", "r571", "r590" ] }, "us-gaap_ClassOfStockLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ClassOfStockLineItems", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail" ], "lang": { "en-us": { "role": { "label": "Class of Stock [Line Items]", "terseLabel": "Class Of Stock [Line Items]", "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." } } }, "auth_ref": [ "r104", "r105", "r106", "r157", "r236", "r237", "r238", "r240", "r243", "r248", "r250", "r415", "r416", "r417", "r418", "r542", "r571", "r590" ] }, "us-gaap_USTreasuryBondSecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "USTreasuryBondSecuritiesMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "US Treasury Bond Securities [Member]", "terseLabel": "Government Bonds [Member]", "documentation": "This category includes information about negotiable debt securities issued by the United States Department of the Treasury which generally have maturities greater than ten and as long as thirty years, are interest bearing, and are backed by the full faith and credit of the United States government." } } }, "auth_ref": [ "r631" ] }, "annx_PercentageOfSharesOfCommonStockOutstandingOnLastDayOfImmediatelyPrecedingFiscalYear": { "xbrltype": "percentItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "PercentageOfSharesOfCommonStockOutstandingOnLastDayOfImmediatelyPrecedingFiscalYear", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Percentage of shares of common stock outstanding on last day of immediately preceding fiscal year.", "label": "Percentage Of Shares Of Common Stock Outstanding On Last Day Of Immediately Preceding Fiscal Year", "terseLabel": "Percentage of shares of common stock outstanding on last day of immediately preceding fiscal year" } } }, "auth_ref": [] }, "dei_EntityCommonStockSharesOutstanding": { "xbrltype": "sharesItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityCommonStockSharesOutstanding", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Common Stock, Shares Outstanding", "terseLabel": "Entity Common Stock, Shares Outstanding", "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." } } }, "auth_ref": [] }, "us-gaap_PrepaidInsurance": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "PrepaidInsurance", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetail": { "parentTag": "us-gaap_PrepaidExpenseAndOtherAssetsCurrent", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetail" ], "lang": { "en-us": { "role": { "label": "Prepaid Insurance", "terseLabel": "Prepaid insurance", "documentation": "Amount of asset related to consideration paid in advance for insurance that provides economic benefits within a future period of one year or the normal operating cycle, if longer." } } }, "auth_ref": [ "r529", "r539", "r603" ] }, "annx_MaximumNumberOfSharesToBeIssuedInAccordanceWithPlanAsAProportionOfOutstandingCapitalStock": { "xbrltype": "sharesItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "MaximumNumberOfSharesToBeIssuedInAccordanceWithPlanAsAProportionOfOutstandingCapitalStock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Maximum number of shares to be issued in accordance with plan as a proportion of outstanding capital stock.", "label": "Maximum Number of Shares to be Issued in Accordance with Plan as a Proportion of Outstanding Capital Stock", "terseLabel": "Maximum number of shares to be issued in accordance with plan as a proportion of outstanding capital stock" } } }, "auth_ref": [] }, "annx_CommonStockReservedForTwoThousandTwentyTwoEmploymentInducementAwardPlanMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "CommonStockReservedForTwoThousandTwentyTwoEmploymentInducementAwardPlanMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail" ], "lang": { "en-us": { "role": { "terseLabel": "2022 Employment Inducement Award Plan [Member]", "label": "Common Stock Reserved For Two Thousand Twenty Two Employment Inducement Award Plan [Member]", "documentation": "Common stock reserved for two thousand twenty two employment inducement award plan." } } }, "auth_ref": [] }, "annx_ExerciseOfPreFundedWarrantsValue": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "ExerciseOfPreFundedWarrantsValue", "crdr": "credit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "terseLabel": "Exercise of pre-funded warrants, Value", "label": "Exercise Of Pre-funded Warrants Value", "documentation": "Exercise of pre-funded warrants value." } } }, "auth_ref": [] }, "dei_DocumentTransitionReport": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "DocumentTransitionReport", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Document Transition Report", "terseLabel": "Document Transition Report", "documentation": "Boolean flag that is true only for a form used as a transition report." } } }, "auth_ref": [ "r568" ] }, "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CommitmentsAndContingenciesDisclosureTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingencies" ], "lang": { "en-us": { "role": { "label": "Commitments and Contingencies Disclosure [Text Block]", "terseLabel": "Commitments and Contingencies", "documentation": "The entire disclosure for commitments and contingencies." } } }, "auth_ref": [ "r76", "r215", "r216", "r515", "r605" ] }, "annx_ScheduleOfCashAndCashEquivalentsAndRestrictedCashTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "ScheduleOfCashAndCashEquivalentsAndRestrictedCashTableTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsTables" ], "lang": { "en-us": { "role": { "documentation": "Schedule of cash and cash equivalents and restricted cash.", "label": "Schedule Of Cash And Cash Equivalents And Restricted Cash Table [Text Block]", "terseLabel": "Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash" } } }, "auth_ref": [] }, "us-gaap_AdditionalPaidInCapitalMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AdditionalPaidInCapitalMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "label": "Additional Paid-in Capital [Member]", "terseLabel": "Additional Paid-in Capital [Member]", "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." } } }, "auth_ref": [ "r297", "r298", "r299", "r424", "r592", "r593", "r594", "r616", "r637" ] }, "annx_ExerciseOfPreFundedWarrantsShares": { "xbrltype": "sharesItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "ExerciseOfPreFundedWarrantsShares", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "verboseLabel": "Exercise of pre-funded warrants, shares", "terseLabel": "Exercise of pre-funded warrants, Shares", "label": "Exercise Of Pre-funded Warrants Shares", "documentation": "Exercise of pre-funded warrants shares." } } }, "auth_ref": [] }, "annx_RecentlyAdoptedAccountingPronouncementsPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "RecentlyAdoptedAccountingPronouncementsPolicyTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "documentation": "Recently Adopted Accounting Pronouncements Policy Text Block.", "label": "Recently Adopted Accounting Pronouncements Policy [Text Block]", "terseLabel": "Recently Adopted Accounting Pronouncements" } } }, "auth_ref": [] }, "us-gaap_StatementEquityComponentsAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StatementEquityComponentsAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "label": "Equity Components [Axis]", "terseLabel": "Equity Components", "documentation": "Information by component of equity." } } }, "auth_ref": [ "r8", "r19", "r95", "r116", "r117", "r118", "r130", "r131", "r132", "r134", "r140", "r142", "r156", "r202", "r203", "r252", "r297", "r298", "r299", "r306", "r307", "r317", "r318", "r319", "r320", "r321", "r322", "r325", "r334", "r335", "r336", "r337", "r338", "r339", "r348", "r408", "r409", "r410", "r424", "r492" ] }, "annx_PaymentOfCommonStockPreFundedWarrantsAndCommonWarrantsIssuanceCostsRelatedToPrivatePlacement": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "PaymentOfCommonStockPreFundedWarrantsAndCommonWarrantsIssuanceCostsRelatedToPrivatePlacement", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0, "order": 5.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "negatedLabel": "Payment of common stock, pre-funded warrants and common warrants issuance costs related to private placement", "verboseLabel": "Payment of common stock, pre-funded warrants and common warrants issuance costs related to private placement", "label": "Payment Of Common Stock, Pre-Funded Warrants And Common Warrants Issuance Costs Related To Private Placement", "documentation": "Payment of common stock, pre-funded warrants and common warrants issuance costs related to private placement." } } }, "auth_ref": [] }, "us-gaap_RetainedEarningsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "RetainedEarningsMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "label": "Retained Earnings [Member]", "terseLabel": "Accumulated Deficit [Member]", "documentation": "Accumulated undistributed earnings (deficit)." } } }, "auth_ref": [ "r95", "r130", "r131", "r132", "r134", "r140", "r142", "r202", "r203", "r297", "r298", "r299", "r306", "r307", "r317", "r319", "r320", "r322", "r325", "r408", "r410", "r424", "r637" ] }, "annx_LaboratoryEquipmentMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "LaboratoryEquipmentMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail" ], "lang": { "en-us": { "role": { "documentation": "Laboratory equipment.", "label": "Laboratory Equipment [Member]", "terseLabel": "Laboratory Equipment [Member]" } } }, "auth_ref": [] }, "annx_CashPaidForAmountsIncludedInTheMeasurementOfLeaseLiability": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "CashPaidForAmountsIncludedInTheMeasurementOfLeaseLiability", "crdr": "credit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "documentation": "Cash paid for amounts included in the measurement of lease liability.", "label": "Cash Paid For Amounts Included In The Measurement Of Lease Liability", "terseLabel": "Cash paid for amounts included in the measurement of lease liability" } } }, "auth_ref": [] }, "annx_IncreaseDecreaseInOperatingLeaseLiabilities": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "IncreaseDecreaseInOperatingLeaseLiabilities", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0, "order": 10.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "documentation": "Increase decrease in operating lease liabilities.", "label": "Increase Decrease In Operating Lease Liabilities", "terseLabel": "Operating lease liabilities" } } }, "auth_ref": [] }, "annx_AggregateSubleasePaymentReceivable": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "AggregateSubleasePaymentReceivable", "crdr": "credit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Aggregate sublease payment receivable.", "label": "Aggregate Sublease Payment Receivable", "verboseLabel": "Aggregate sublease payment receivable" } } }, "auth_ref": [] }, "annx_AccruedResearchAndDevelopmentExpensesCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "AccruedResearchAndDevelopmentExpensesCurrent", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfAccruedLiabilitiesDetail": { "parentTag": "us-gaap_AccruedLiabilitiesCurrent", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfAccruedLiabilitiesDetail" ], "lang": { "en-us": { "role": { "documentation": "Accrued research and development expenses, current", "label": "Accrued Research And Development Expenses Current", "terseLabel": "Accrued research and development expenses" } } }, "auth_ref": [] }, "dei_EntityTaxIdentificationNumber": { "xbrltype": "employerIdItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityTaxIdentificationNumber", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Tax Identification Number", "terseLabel": "Entity Tax Identification Number", "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS." } } }, "auth_ref": [ "r565" ] }, "us-gaap_PropertyPlantAndEquipmentGross": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "PropertyPlantAndEquipmentGross", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail": { "parentTag": "us-gaap_PropertyPlantAndEquipmentNet", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail" ], "lang": { "en-us": { "role": { "label": "Property, Plant and Equipment, Gross", "terseLabel": "Total property and equipment, gross", "totalLabel": "Property, Plant and Equipment, Gross, Total", "periodStartLabel": "Property, Plant and Equipment, Gross, Beginning Balance", "periodEndLabel": "Property, Plant and Equipment, Gross, Ending Balance", "documentation": "Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures." } } }, "auth_ref": [ "r75", "r100", "r402" ] }, "annx_ScheduleOfCommonStockReservedForFutureIssuanceTableTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "ScheduleOfCommonStockReservedForFutureIssuanceTableTableTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityTables" ], "lang": { "en-us": { "role": { "documentation": "Schedule of common stock reserved for future issuance table.", "label": "Schedule Of Common Stock Reserved For Future Issuance Table Table [Text Block]", "terseLabel": "Schedule of Common Stock Reserved for Future Issuance" } } }, "auth_ref": [] }, "us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquityParenthetical" ], "lang": { "en-us": { "role": { "label": "Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs", "terseLabel": "Stock issuance cost for related party", "documentation": "Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration." } } }, "auth_ref": [ "r8", "r81" ] }, "annx_StanfordAgreementmemberMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "StanfordAgreementmemberMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Stanford Agreement [Member]", "label": "Stanford Agreementmember [Member]", "terseLabel": "Stanford Agreement [Member]" } } }, "auth_ref": [] }, "us-gaap_PropertyPlantAndEquipmentAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "PropertyPlantAndEquipmentAbstract", "lang": { "en-us": { "role": { "label": "Property, Plant and Equipment [Abstract]" } } }, "auth_ref": [] }, "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfComprehensiveLoss": { "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfComprehensiveLoss", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "terseLabel": "Unrealized gain (loss) on available-for-sale securities", "label": "OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax", "verboseLabel": "Unrealized loss on available-for-sale securities", "documentation": "Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale." } } }, "auth_ref": [ "r110", "r111", "r200" ] }, "us-gaap_PropertyPlantAndEquipmentNet": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "PropertyPlantAndEquipmentNet", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_Assets", "weight": 1.0, "order": 2.0 }, "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Property, Plant and Equipment, Net", "terseLabel": "Property and equipment, net", "totalLabel": "Total property and equipment, net", "periodStartLabel": "Property, Plant and Equipment, Net, Beginning Balance", "periodEndLabel": "Property, Plant and Equipment, Net, Ending Balance", "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." } } }, "auth_ref": [ "r6", "r392", "r402", "r551" ] }, "annx_AccruedConstructionCostsCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "AccruedConstructionCostsCurrent", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfAccruedLiabilitiesDetail": { "parentTag": "us-gaap_AccruedLiabilitiesCurrent", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfAccruedLiabilitiesDetail" ], "lang": { "en-us": { "role": { "documentation": "Accrued construction costs current.", "label": "Accrued Construction Costs Current", "terseLabel": "Accrued construction costs" } } }, "auth_ref": [] }, "annx_SummaryOfPrepaidExpensesAndOtherCurrentAssetsTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "SummaryOfPrepaidExpensesAndOtherCurrentAssetsTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsTables" ], "lang": { "en-us": { "role": { "documentation": "Summary of prepaid expenses and other current assets.", "label": "Summary Of Prepaid Expenses And Other Current Assets [Text Block]", "terseLabel": "Summary of Prepaid Expenses and Other Current Assets" } } }, "auth_ref": [] }, "us-gaap_EquityComponentDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "EquityComponentDomain", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "label": "Equity Component [Domain]", "terseLabel": "Equity Component", "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." } } }, "auth_ref": [ "r8", "r95", "r116", "r117", "r118", "r130", "r131", "r132", "r134", "r140", "r142", "r156", "r202", "r203", "r252", "r297", "r298", "r299", "r306", "r307", "r317", "r318", "r319", "r320", "r321", "r322", "r325", "r334", "r335", "r336", "r337", "r338", "r339", "r348", "r408", "r409", "r410", "r424", "r492" ] }, "dei_EntityIncorporationStateCountryCode": { "xbrltype": "edgarStateCountryItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityIncorporationStateCountryCode", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Incorporation, State or Country Code", "terseLabel": "Entity Incorporation, State or Country Code", "documentation": "Two-character EDGAR code representing the state or country of incorporation." } } }, "auth_ref": [] }, "dei_EntityInteractiveDataCurrent": { "xbrltype": "yesNoItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityInteractiveDataCurrent", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Interactive Data Current", "terseLabel": "Entity Interactive Data Current", "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)." } } }, "auth_ref": [ "r569" ] }, "dei_CurrentFiscalYearEndDate": { "xbrltype": "gMonthDayItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "CurrentFiscalYearEndDate", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Current Fiscal Year End Date", "terseLabel": "Current Fiscal Year End Date", "documentation": "End date of current fiscal year in the format --MM-DD." } } }, "auth_ref": [] }, "us-gaap_AccumulatedOtherComprehensiveIncomeMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AccumulatedOtherComprehensiveIncomeMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "label": "AOCI Attributable to Parent [Member]", "terseLabel": "Accumulated Other Comprehensive Loss [Member]", "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." } } }, "auth_ref": [ "r1", "r7", "r21", "r318", "r321", "r348", "r408", "r409", "r584", "r585", "r586", "r592", "r593", "r594" ] }, "annx_OperatingLeaseWeightedAverageIncrementalBorrowingRatePercent": { "xbrltype": "percentItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "OperatingLeaseWeightedAverageIncrementalBorrowingRatePercent", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Operating lease weighted average incremental borrowing rate percent.", "label": "Operating Lease Weighted Average Incremental Borrowing Rate Percent", "terseLabel": "Weighted average incremental borrowing rate" } } }, "auth_ref": [] }, "us-gaap_OtherAssetsCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OtherAssetsCurrent", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetail": { "parentTag": "us-gaap_PrepaidExpenseAndOtherAssetsCurrent", "weight": 1.0, "order": 4.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetail" ], "lang": { "en-us": { "role": { "label": "Other Assets, Current", "terseLabel": "Other current assets", "documentation": "Amount of current assets classified as other." } } }, "auth_ref": [ "r108", "r551" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross", "terseLabel": "Number of shares, Stock options granted", "documentation": "Gross number of share options (or share units) granted during the period." } } }, "auth_ref": [ "r273" ] }, "us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansTables" ], "lang": { "en-us": { "role": { "label": "Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]", "terseLabel": "Summary of RSU Activity under 2020 Plan", "documentation": "Tabular disclosure of the changes in outstanding nonvested restricted stock units." } } }, "auth_ref": [ "r47" ] }, "annx_SalesAgreementWithCowenAndCompanyLLCMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "SalesAgreementWithCowenAndCompanyLLCMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Sales agreement with Cowen and Company LLC.", "label": "Sales Agreement With Cowen And Company L L C [Member]", "terseLabel": "Sales Agreement with Cowen and Company LLC [Member]" } } }, "auth_ref": [] }, "annx_PreFundedWarrantsMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "PreFundedWarrantsMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail" ], "lang": { "en-us": { "role": { "documentation": "pre-funded warrants Member.", "label": "pre-funded warrants Member", "terseLabel": "Pre-Funded Warrants [Member]" } } }, "auth_ref": [] }, "annx_ProceedsFromIssuanceOfCommonStockPreFundedWarrantsAndCommonWarrantsInPrivatePlacement": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "ProceedsFromIssuanceOfCommonStockPreFundedWarrantsAndCommonWarrantsInPrivatePlacement", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0, "order": 6.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "terseLabel": "Proceeds from the issuance of common stock, pre-funded warrants and common warrants in private placement", "label": "Proceeds From Issuance Of Common Stock, Pre-Funded Warrants And Common Warrants In Private Placement", "documentation": "Proceeds from issuance of common stock, pre-funded warrants and common warrants in private placement" } } }, "auth_ref": [] }, "us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansTables" ], "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement, Cost by Plan [Table Text Block]", "terseLabel": "Summary of Stock-Based Compensation Expense", "documentation": "Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit." } } }, "auth_ref": [ "r48" ] }, "annx_EmploymentInducementIncentivePlanMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "EmploymentInducementIncentivePlanMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "2022 Employment Inducement Award Plan [Member]", "label": "Two Thousand Twenty Two Employment Inducement Award Plan [Member]", "documentation": "Two Thousand Twenty Two Employment Inducement Award Plan." } } }, "auth_ref": [] }, "annx_AccruedCompensationCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "AccruedCompensationCurrent", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfAccruedLiabilitiesDetail": { "parentTag": "us-gaap_AccruedLiabilitiesCurrent", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfAccruedLiabilitiesDetail" ], "lang": { "en-us": { "role": { "documentation": "Accrued compensation, current", "label": "Accrued Compensation Current", "terseLabel": "Accrued compensation" } } }, "auth_ref": [] }, "annx_ComputerEquipmentAndSoftwareMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "ComputerEquipmentAndSoftwareMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail" ], "lang": { "en-us": { "role": { "documentation": "Computer equipment and software.", "label": "Computer Equipment And Software [Member]", "terseLabel": "Computer Equipment and Software [Member]" } } }, "auth_ref": [] }, "us-gaap_StockIssuedDuringPeriodValueNewIssues": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StockIssuedDuringPeriodValueNewIssues", "crdr": "credit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "verboseLabel": "Issuance of common stock to a related party, net of issuance costs, Value", "terseLabel": "Sale of shares", "label": "Stock Issued During Period, Value, New Issues", "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." } } }, "auth_ref": [ "r8", "r57", "r58", "r81", "r424", "r492", "r509", "r562" ] }, "us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StockIssuedDuringPeriodValueEmployeeStockPurchasePlan", "crdr": "credit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "label": "Stock Issued During Period, Value, Employee Stock Purchase Plan", "terseLabel": "Issuance of common stock per Employee Stock Purchase Plan puchase", "documentation": "Aggregate change in value for stock issued during the period as a result of employee stock purchase plan." } } }, "auth_ref": [ "r8", "r57", "r58", "r81" ] }, "annx_ConstructionInProgressObtainedInExchangeForTenantImprovementAllowanceFromLessors": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "ConstructionInProgressObtainedInExchangeForTenantImprovementAllowanceFromLessors", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "terseLabel": "Construction-in-progress obtained in exchange for tenant improvement allowance from lessors", "label": "Construction in Progress Obtained in Exchange for Tenant Improvement Allowance from Lessors", "documentation": "Construction-in-progress obtained in exchange for tenant improvement allowance from lessors." } } }, "auth_ref": [] }, "us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "FairValueAssetsMeasuredOnRecurringBasisTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureFairValueMeasurementsTables" ], "lang": { "en-us": { "role": { "terseLabel": "Summary of Financial Assets Measured at Fair Value on a Recurring Basis", "label": "Fair Value, Assets Measured on Recurring Basis [Table Text Block]", "documentation": "Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class 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)." } } }, "auth_ref": [ "r52", "r84" ] }, "us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansTables" ], "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement, Option, Activity [Table Text Block]", "terseLabel": "Summary of Stock Option Activity", "documentation": "Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value." } } }, "auth_ref": [ "r10", "r11", "r46" ] }, "us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansTables" ], "lang": { "en-us": { "role": { "label": "Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]", "terseLabel": "Summary of Fair Value of Each Award Issued Estimated on the Date of Grant Using the Black-Scholes Option Pricing Model", "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." } } }, "auth_ref": [ "r83" ] }, "us-gaap_NoncashInvestingAndFinancingItemsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "NoncashInvestingAndFinancingItemsAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "terseLabel": "Non-cash investing and financing activities:", "label": "Noncash Investing and Financing Items [Abstract]" } } }, "auth_ref": [] }, "annx_ProceedsFromIssuanceOfCommonStockPreFundedWarrantsAndCommonWarrantsInPrivatePlacementRelatedParty": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "ProceedsFromIssuanceOfCommonStockPreFundedWarrantsAndCommonWarrantsInPrivatePlacementRelatedParty", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0, "order": 4.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "terseLabel": "Proceeds from the issuance of common stock, pre-funded warrants and common warrants in private placement - related party", "label": "Proceeds From Issuance Of Common Stock, Pre-Funded Warrants And Common Warrants In Private Placement Related Party", "documentation": "Proceeds from issuance of common stock, pre-funded warrants and common warrants in private placement - related party." } } }, "auth_ref": [] }, "us-gaap_PropertyPlantAndEquipmentByTypeAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "PropertyPlantAndEquipmentByTypeAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail" ], "lang": { "en-us": { "role": { "label": "Long-Lived Tangible Asset [Axis]", "terseLabel": "Long-Lived Tangible Asset", "documentation": "Information by type of long-lived, physical assets used to produce goods and services and not intended for resale." } } }, "auth_ref": [ "r6" ] }, "us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Purchase price per share", "label": "Class of Warrant or Right, Exercise Price of Warrants or Rights", "documentation": "Exercise price per share or per unit of warrants or rights outstanding." } } }, "auth_ref": [ "r251" ] }, "us-gaap_WarrantMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "WarrantMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareSummaryOfOutstandingPotentiallyDilutiveSharesExcludedFromCalculationOfDilutedNetLossPerShareDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Warrants or Common Warrants [Member]", "label": "Warrant [Member]", "verboseLabel": "Common Warrants [Member]", "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." } } }, "auth_ref": [ "r553", "r554", "r557", "r558", "r559", "r560" ] }, "annx_CommonWarrantsMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "CommonWarrantsMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail" ], "lang": { "en-us": { "role": { "documentation": "Common Warrants Member", "label": "Common Warrants Member", "terseLabel": "Common Warrants [Member]" } } }, "auth_ref": [] }, "us-gaap_CapitalExpendituresIncurredButNotYetPaid": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CapitalExpendituresIncurredButNotYetPaid", "crdr": "credit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "terseLabel": "Purchases of property and equipment included in accounts payable and accrued liabilities", "label": "Capital Expenditures Incurred but Not yet Paid", "documentation": "Future cash outflow to pay for purchases of fixed assets that have occurred." } } }, "auth_ref": [ "r27", "r28", "r29" ] }, "annx_IncentiveStockOptionsAndNonstatutoryStockOptionsMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "IncentiveStockOptionsAndNonstatutoryStockOptionsMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Incentive stock options and nonstatutory stock options.", "label": "Incentive Stock Options And Nonstatutory Stock Options [Member]", "terseLabel": "Incentive Stock Options, or ISOs, and Nonstatutory Stock Options, or NSOs [Member]" } } }, "auth_ref": [] }, "us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StockIssuedDuringPeriodValueStockOptionsExercised", "crdr": "credit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "terseLabel": "Exercise of stock options", "label": "Stock Issued During Period, Value, Stock Options Exercised", "documentation": "Value of stock issued as a result of the exercise of stock options." } } }, "auth_ref": [ "r8", "r19", "r81" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfFairValueOfEachAwardIssuedEstimatedOnTheDateOfGrantUsingTheBlackscholesOptionPricingModelDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum", "terseLabel": "Expected volatility, Minimum", "documentation": "The estimated measure of the minimum 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." } } }, "auth_ref": [] }, "annx_TwoZeroTwoOneAtTheMarketProgramMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "TwoZeroTwoOneAtTheMarketProgramMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity", "http://annexonbio.com/20230930/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquityParenthetical" ], "lang": { "en-us": { "role": { "documentation": "Two zero two one at the market program.", "label": "Two Zero Two One At The Market Program [Member]", "terseLabel": "2021 ATM Program [Member]" } } }, "auth_ref": [] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfFairValueOfEachAwardIssuedEstimatedOnTheDateOfGrantUsingTheBlackscholesOptionPricingModelDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum", "terseLabel": "Expected volatility, Maximum", "documentation": "The estimated measure of the maximum 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." } } }, "auth_ref": [] }, "annx_DisclosureOfBalanceSheetComponentsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "DisclosureOfBalanceSheetComponentsAbstract", "lang": { "en-us": { "role": { "documentation": "Disclosure Of Balance Sheet Components [Abstract]", "label": "Disclosure Of Balance Sheet Components [Abstract]" } } }, "auth_ref": [] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfFairValueOfEachAwardIssuedEstimatedOnTheDateOfGrantUsingTheBlackscholesOptionPricingModelDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum", "terseLabel": "Risk-free interest rate, Minimum", "documentation": "The minimum risk-free interest rate assumption that is used in valuing an option on its own shares." } } }, "auth_ref": [] }, "annx_BalanceSheetComponentsDisclosureTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "BalanceSheetComponentsDisclosureTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponents" ], "lang": { "en-us": { "role": { "documentation": "Balance sheet components disclosure.", "label": "Balance Sheet Components Disclosure [Text Block]", "terseLabel": "Balance Sheet Components" } } }, "auth_ref": [] }, "us-gaap_StockIssuedDuringPeriodSharesNewIssues": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StockIssuedDuringPeriodSharesNewIssues", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "terseLabel": "Issuance of common stock to a related party, net of issuance costs, Shares", "label": "Sale of shares", "verboseLabel": "Sale of shares", "documentation": "Number of new stock issued during the period." } } }, "auth_ref": [ "r8", "r57", "r58", "r81", "r415", "r492", "r509" ] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfFairValueOfEachAwardIssuedEstimatedOnTheDateOfGrantUsingTheBlackscholesOptionPricingModelDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum", "terseLabel": "Risk-free interest rate, Maximum", "documentation": "The maximum risk-free interest rate assumption that is used in valuing an option on its own shares." } } }, "auth_ref": [] }, "us-gaap_PropertyPlantAndEquipmentLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "PropertyPlantAndEquipmentLineItems", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail" ], "lang": { "en-us": { "role": { "label": "Property, Plant and Equipment [Line Items]", "terseLabel": "Property Plant And Equipment [Line Items]", "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." } } }, "auth_ref": [] }, "annx_SponsoredResearchAgreementMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "SponsoredResearchAgreementMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Sponsored Research Agreement [Member]", "label": "Sponsored Research Agreement [Member]", "terseLabel": "Sponsored Research Agreement [Member]" } } }, "auth_ref": [] }, "us-gaap_CommonStockSharesIssued": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CommonStockSharesIssued", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Common stock, shares issued", "label": "Common Stock, Shares, Issued", "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." } } }, "auth_ref": [ "r58" ] }, "annx_LesseeOperatingLeaseLiabilityPaymentsDueYearFourAndThereafter": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFourAndThereafter", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail": { "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0, "order": 4.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsAndRelatedLeaseLiabilitiesDetail" ], "lang": { "en-us": { "role": { "documentation": "Lessee operating lease liability payments due year four and thereafter.", "label": "Lessee Operating Lease Liability Payments Due Year Four And Thereafter", "terseLabel": "2027 and thereafter" } } }, "auth_ref": [] }, "annx_ProceedsFromIssuanceOfCommonStockGross": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "ProceedsFromIssuanceOfCommonStockGross", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Gross proceeds from sale of common stock", "label": "Proceeds from Issuance of Common Stock, Gross", "documentation": "Proceeds from issuance of common stock, gross." } } }, "auth_ref": [] }, "annx_PrefundedWarrantMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "PrefundedWarrantMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Prefunded Warrant [Member]", "documentation": "Prefunded Warrant Member", "terseLabel": "Pre-funded Warrants [Member]" } } }, "auth_ref": [] }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent", "terseLabel": "Purchase of Common stock at end of each offering period at price equal to percentage of fair market value of shares", "documentation": "Purchase price of common stock expressed as a percentage of its fair value." } } }, "auth_ref": [] }, "annx_StockOptionsReservedForTwoThousandTwentyIncentiveAwardPlanMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "StockOptionsReservedForTwoThousandTwentyIncentiveAwardPlanMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail" ], "lang": { "en-us": { "role": { "documentation": "Stock options reserved for two thousand twenty incentive award plan.", "label": "Stock Options Reserved for Two Thousand Twenty Incentive Award Plan [Member]", "terseLabel": "Stock Options Reserved for 2020 Incentive Award Plan [Member]" } } }, "auth_ref": [] }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails" ], "lang": { "en-us": { "role": { "label": "Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations", "totalLabel": "Cash, cash equivalents and restricted cash", "periodStartLabel": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Beginning Balance", "periodEndLabel": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Ending Balance", "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including, but not limited to, 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." } } }, "auth_ref": [ "r26", "r69", "r124" ] }, "us-gaap_GeneralAndAdministrativeExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "GeneralAndAdministrativeExpense", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations": { "parentTag": "us-gaap_OperatingExpenses", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations" ], "lang": { "en-us": { "role": { "label": "General and Administrative Expense", "terseLabel": "General and administrative", "totalLabel": "General and Administrative Expense, Total", "documentation": "The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line." } } }, "auth_ref": [ "r67", "r474" ] }, "dei_EntityCurrentReportingStatus": { "xbrltype": "yesNoItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityCurrentReportingStatus", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Current Reporting Status", "terseLabel": "Entity Current Reporting Status", "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." } } }, "auth_ref": [] }, "us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "PaymentsToAcquireAvailableForSaleSecuritiesDebt", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Payments to Acquire Debt Securities, Available-for-Sale", "negatedLabel": "Purchases of available-for-sale securities", "documentation": "Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r23", "r121", "r168" ] }, "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "label": "New Accounting Pronouncements, Policy [Policy Text Block]", "terseLabel": "Recently Issued Accounting Pronouncements", "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." } } }, "auth_ref": [] }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareSummaryOfOutstandingPotentiallyDilutiveSharesExcludedFromCalculationOfDilutedNetLossPerShareDetail" ], "lang": { "en-us": { "role": { "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]", "terseLabel": "Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]", "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." } } }, "auth_ref": [] }, "us-gaap_IncreaseDecreaseInOtherCurrentLiabilities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "IncreaseDecreaseInOtherCurrentLiabilities", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0, "order": 11.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Increase (Decrease) in Other Current Liabilities", "terseLabel": "Other current liabilities", "documentation": "Amount of increase (decrease) in current liabilities classified as other." } } }, "auth_ref": [ "r587" ] }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareSummaryOfOutstandingPotentiallyDilutiveSharesExcludedFromCalculationOfDilutedNetLossPerShareDetail" ], "lang": { "en-us": { "role": { "label": "Antidilutive Securities [Axis]", "terseLabel": "Antidilutive Securities", "documentation": "Information by type of antidilutive security." } } }, "auth_ref": [ "r30" ] }, "dei_EntityExTransitionPeriod": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityExTransitionPeriod", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Ex Transition Period", "documentation": "Indicate if an emerging growth company has elected not to use the extended transition period for complying with any new or revised financial accounting standards." } } }, "auth_ref": [ "r570" ] }, "annx_LesseeOperatingLeaseExpirationMonthAndYear": { "xbrltype": "gYearMonthItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "LesseeOperatingLeaseExpirationMonthAndYear", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Lessee, operating lease, expiration month and year.", "label": "Lessee Operating Lease Expiration Month And Year", "terseLabel": "Operating lease, expiration month and year" } } }, "auth_ref": [] }, "us-gaap_EarningsPerShareAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "EarningsPerShareAbstract", "lang": { "en-us": { "role": { "label": "Earnings Per Share [Abstract]" } } }, "auth_ref": [] }, "us-gaap_StatementClassOfStockAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StatementClassOfStockAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Class of Stock [Axis]", "terseLabel": "Class of Stock", "documentation": "Information by the different classes of stock of the entity." } } }, "auth_ref": [ "r94", "r104", "r105", "r106", "r126", "r146", "r147", "r149", "r151", "r157", "r158", "r201", "r223", "r225", "r226", "r227", "r230", "r231", "r236", "r237", "r240", "r243", "r250", "r332", "r415", "r416", "r417", "r418", "r424", "r425", "r426", "r427", "r428", "r429", "r430", "r431", "r432", "r433", "r434", "r436", "r450", "r472", "r492", "r508", "r509", "r510", "r511", "r512", "r571", "r590", "r595" ] }, "us-gaap_WarrantsAndRightsNoteDisclosureAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "WarrantsAndRightsNoteDisclosureAbstract", "lang": { "en-us": { "role": { "label": "Warrants and Rights Note Disclosure [Abstract]" } } }, "auth_ref": [] }, "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "PaymentsToAcquirePropertyPlantAndEquipment", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Payments to Acquire Property, Plant, and Equipment", "negatedLabel": "Purchases of property and equipment", "totalLabel": "Payments to Acquire Property, Plant, and Equipment, Total", "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." } } }, "auth_ref": [ "r68" ] }, "dei_CoverAbstract": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "CoverAbstract", "lang": { "en-us": { "role": { "label": "Cover [Abstract]", "documentation": "Cover page." } } }, "auth_ref": [] }, "annx_OfferingPricePerShare": { "xbrltype": "perShareItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "OfferingPricePerShare", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Offering price per share.", "label": "Offering Price Per Share", "terseLabel": "Offering price per share" } } }, "auth_ref": [] }, "us-gaap_ProceedsFromIssuanceOfPrivatePlacement": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ProceedsFromIssuanceOfPrivatePlacement", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Net proceeds from private placement", "terseLabel": "Net proceeds from private placement", "documentation": "The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement." } } }, "auth_ref": [ "r3" ] }, "us-gaap_GeneralAndAdministrativeExpenseMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "GeneralAndAdministrativeExpenseMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockbasedCompensationExpenseDetail" ], "lang": { "en-us": { "role": { "label": "General and Administrative Expense [Member]", "terseLabel": "General and Administrative [Member]", "documentation": "Primary financial statement caption encompassing general and administrative expense." } } }, "auth_ref": [ "r66" ] }, "dei_EntityAddressAddressLine1": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityAddressAddressLine1", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Address, Address Line One", "terseLabel": "Entity Address, Address Line One", "documentation": "Address Line 1 such as Attn, Building Name, Street Name" } } }, "auth_ref": [] }, "annx_AdditionalStockIssuedDuringPeriodCommonSharesPurchased": { "xbrltype": "sharesItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "AdditionalStockIssuedDuringPeriodCommonSharesPurchased", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Additional stock issued during period common shares purchased.", "label": "Additional Stock Issued During Period Common Shares Purchased", "terseLabel": "Additional common shares purchased" } } }, "auth_ref": [] }, "annx_DeferredOfferingCostsIncludedInAccruedLiabilities": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "DeferredOfferingCostsIncludedInAccruedLiabilities", "crdr": "credit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "terseLabel": "Deferred offering costs included in accrued liabilities", "label": "Deferred Offering Costs Included In Accrued Liabilities", "documentation": "Deferred offering costs included in accrued liabilities." } } }, "auth_ref": [] }, "dei_EntityAddressAddressLine2": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityAddressAddressLine2", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Address, Address Line Two", "terseLabel": "Entity Address, Address Line Two", "documentation": "Address Line 2 such as Street or Suite number" } } }, "auth_ref": [] }, "us-gaap_ClassOfWarrantOrRightLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ClassOfWarrantOrRightLineItems", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Class of Warrant or Right [Line Items]", "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." } } }, "auth_ref": [] }, "annx_StockIssuedDuringPeriodSharesForExerciseOfWarrants": { "xbrltype": "sharesItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "StockIssuedDuringPeriodSharesForExerciseOfWarrants", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "terseLabel": "Common stock shares issued for exercise of warrants", "label": "Stock Issued During Period Shares For Exercise Of Warrants", "documentation": "Stock issued during period shares for exercise of warrants." } } }, "auth_ref": [] }, "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareTables" ], "lang": { "en-us": { "role": { "label": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]", "terseLabel": "Summary of Outstanding Potentially Dilutive Shares Excluded From Calculation of Diluted Net Loss Per Share", "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." } } }, "auth_ref": [ "r30" ] }, "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareSummaryOfOutstandingPotentiallyDilutiveSharesExcludedFromCalculationOfDilutedNetLossPerShareDetail" ], "lang": { "en-us": { "role": { "label": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]", "terseLabel": "Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table]", "documentation": "Schedule for 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." } } }, "auth_ref": [ "r30" ] }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term", "terseLabel": "Weighted- average remaining contractual term", "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." } } }, "auth_ref": [ "r82" ] }, "dei_EntityAddressAddressLine3": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityAddressAddressLine3", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Address, Address Line Three", "terseLabel": "Entity Address, Address Line Three", "documentation": "Address Line 3 such as an Office Park" } } }, "auth_ref": [] }, "us-gaap_UseOfEstimates": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "UseOfEstimates", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "label": "Use of Estimates, Policy [Policy Text Block]", "terseLabel": "Use of Estimates", "documentation": "Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles." } } }, "auth_ref": [ "r31", "r32", "r33", "r90", "r91", "r92", "r93" ] }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term", "terseLabel": "Weighted- average remaining contractual term, Exercisable", "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." } } }, "auth_ref": [ "r44" ] }, "us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Category of Item Purchased [Axis]", "terseLabel": "Category of Item Purchased", "documentation": "Information by category of items purchased under a long-term purchase commitment." } } }, "auth_ref": [] }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount", "terseLabel": "Unrecognized stock-based compensation cost", "documentation": "Amount of cost to be recognized for option under share-based payment arrangement." } } }, "auth_ref": [ "r615" ] }, "us-gaap_OperatingLeaseRightOfUseAsset": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OperatingLeaseRightOfUseAsset", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_Assets", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Operating Lease, Right-of-Use Asset", "terseLabel": "Operating lease right-of-use assets", "verboseLabel": "Operating lease right-of-use asset", "documentation": "Amount of lessee's right to use underlying asset under operating lease." } } }, "auth_ref": [ "r340" ] }, "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "IncreaseDecreaseInOperatingCapitalAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Increase (Decrease) in Operating Capital [Abstract]", "terseLabel": "Changes in operating assets and liabilities:" } } }, "auth_ref": [] }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfFairValueOfEachAwardIssuedEstimatedOnTheDateOfGrantUsingTheBlackscholesOptionPricingModelDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term", "terseLabel": "Expected term (in years)", "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." } } }, "auth_ref": [ "r287" ] }, "us-gaap_IncreaseDecreaseInAccountsPayable": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "IncreaseDecreaseInAccountsPayable", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0, "order": 8.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Increase (Decrease) in Accounts Payable", "terseLabel": "Accounts payable", "totalLabel": "Increase (Decrease) in Accounts Payable, Total", "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." } } }, "auth_ref": [ "r4" ] }, "dei_EntityAddressCityOrTown": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityAddressCityOrTown", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Address, City or Town", "terseLabel": "Entity Address, City or Town", "documentation": "Name of the City or Town" } } }, "auth_ref": [] }, "dei_DocumentInformationTable": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "DocumentInformationTable", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Document Information [Table]", "documentation": "Container to support the formal attachment of each official or unofficial, public or private document as part of a submission package." } } }, "auth_ref": [] }, "us-gaap_IncreaseDecreaseInAccruedLiabilities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "IncreaseDecreaseInAccruedLiabilities", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0, "order": 9.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Increase (Decrease) in Accrued Liabilities", "terseLabel": "Accrued liabilities", "totalLabel": "Increase (Decrease) in Accrued Liabilities, Total", "documentation": "The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid." } } }, "auth_ref": [ "r4" ] }, "dei_EntityAddressStateOrProvince": { "xbrltype": "stateOrProvinceItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityAddressStateOrProvince", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Address, State or Province", "terseLabel": "Entity Address, State or Province", "documentation": "Name of the state or province." } } }, "auth_ref": [] }, "annx_WarrantsDisclosureTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "WarrantsDisclosureTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureWarrants1" ], "lang": { "en-us": { "role": { "documentation": "Warrants Disclosure.", "label": "Warrants Disclosure [Text Block]", "terseLabel": "Warrants" } } }, "auth_ref": [] }, "us-gaap_LiabilitiesCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LiabilitiesCurrent", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_Liabilities", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Liabilities, Current", "totalLabel": "Total current liabilities", "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." } } }, "auth_ref": [ "r16", "r98", "r126", "r201", "r223", "r224", "r225", "r226", "r227", "r228", "r229", "r230", "r231", "r314", "r315", "r316", "r332", "r551", "r610", "r621", "r622" ] }, "us-gaap_FinancialInstrumentAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "FinancialInstrumentAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Financial Instrument [Axis]", "documentation": "Information by type of financial instrument." } } }, "auth_ref": [ "r170", "r171", "r172", "r173", "r174", "r175", "r176", "r177", "r178", "r179", "r180", "r181", "r182", "r183", "r184", "r185", "r186", "r187", "r188", "r189", "r190", "r191", "r192", "r193", "r194", "r195", "r196", "r197", "r198", "r199", "r204", "r205", "r206", "r207", "r208", "r210", "r211", "r212", "r234", "r248", "r323", "r357", "r358", "r359", "r360", "r361", "r362", "r363", "r364", "r365", "r366", "r367", "r368", "r369", "r370", "r371", "r372", "r373", "r374", "r375", "r376", "r377", "r378", "r379", "r380", "r381", "r382", "r383", "r384", "r385", "r386", "r404", "r538", "r573", "r574", "r575", "r576", "r577", "r578", "r579", "r598", "r599", "r600", "r601" ] }, "us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0, "order": 4.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale", "terseLabel": "Proceeds from maturities of available-for-sale securities", "documentation": "Amount of cash inflow from 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)." } } }, "auth_ref": [ "r121", "r122", "r597" ] }, "annx_MaximumExpectedResearchFunding": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "MaximumExpectedResearchFunding", "crdr": "credit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Maximum Expected Research Funding", "label": "Maximum Expected Research Funding", "terseLabel": "Maximum expected research funding" } } }, "auth_ref": [] }, "us-gaap_LongTermPurchaseCommitmentAmount": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LongTermPurchaseCommitmentAmount", "crdr": "credit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Long-Term Purchase Commitment, Amount", "terseLabel": "Sponsor research agreements, commitment amount", "documentation": "The minimum amount the entity agreed to spend under the long-term purchase commitment." } } }, "auth_ref": [] }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period", "terseLabel": "Vesting Period", "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." } } }, "auth_ref": [ "r548" ] }, "annx_CommonSharesExchangeValue": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "CommonSharesExchangeValue", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Common shares exchange value.", "label": "Common Shares Exchange Value", "terseLabel": "Exchange value" } } }, "auth_ref": [] }, "dei_EntityAddressPostalZipCode": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityAddressPostalZipCode", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Address, Postal Zip Code", "terseLabel": "Entity Address, Postal Zip Code", "documentation": "Code for the postal or zip code" } } }, "auth_ref": [] }, "dei_DocumentInformationLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "DocumentInformationLineItems", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Document Information [Line Items]", "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." } } }, "auth_ref": [] }, "us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Long-Term Purchase Commitment, Category of Item Purchased [Domain]", "terseLabel": "Long-term Purchase Commitment, Category of Item Purchased", "documentation": "General description of the goods or services to be purchased from the counterparty to the long-term purchase commitment." } } }, "auth_ref": [] }, "annx_EmployeeStockPurchasePlanMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "EmployeeStockPurchasePlanMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureStockholderSEquityScheduleOfCommonStockReservedForFutureIssuanceDetail" ], "lang": { "en-us": { "role": { "documentation": "Employee stock purchase plan.", "label": "Employee Stock Purchase Plan [Member]", "terseLabel": "Employee Stock Purchase Plan [Member]", "verboseLabel": "Common Stock Reserved for Employee Stock Purchase Plan [Member]" } } }, "auth_ref": [] }, "us-gaap_FairValueByAssetClassAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "FairValueByAssetClassAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Asset Class [Axis]", "terseLabel": "Asset Class", "documentation": "Information by class of asset." } } }, "auth_ref": [ "r52", "r53" ] }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition", "terseLabel": "Unrecognized stock-based compensation cost expected period for recognition", "documentation": "Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days." } } }, "auth_ref": [ "r295" ] }, "annx_BrisbaneCaliforniaMember": { "xbrltype": "domainItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "BrisbaneCaliforniaMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Brisbane, California.", "label": "Brisbane California [Member]", "terseLabel": "Brisbane, California [Member]" } } }, "auth_ref": [] }, "us-gaap_FairValueByFairValueHierarchyLevelAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "FairValueByFairValueHierarchyLevelAxis", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Fair Value Hierarchy and NAV [Axis]", "terseLabel": "Fair Value Hierarchy and NAV", "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient." } } }, "auth_ref": [ "r233", "r254", "r255", "r256", "r257", "r258", "r259", "r330", "r360", "r361", "r362", "r540", "r541", "r544", "r545", "r546" ] }, "dei_DocumentType": { "xbrltype": "submissionTypeItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "DocumentType", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Document Type", "terseLabel": "Document Type", "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'." } } }, "auth_ref": [] }, "us-gaap_LiabilitiesCurrentAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LiabilitiesCurrentAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Liabilities, Current [Abstract]", "terseLabel": "Current liabilities:" } } }, "auth_ref": [] }, "us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "terseLabel": "Right-of-use assets obtained in exchange for lease liability", "label": "Right-of-Use Asset Obtained in Exchange for Operating Lease Liability", "documentation": "Amount of increase in right-of-use asset obtained in exchange for operating lease liability." } } }, "auth_ref": [ "r345", "r550" ] }, "annx_InterestAndOtherNonOperatingIncomeExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "InterestAndOtherNonOperatingIncomeExpense", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations": { "parentTag": "us-gaap_NetIncomeLoss", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations" ], "lang": { "en-us": { "role": { "documentation": "Interest and other non operating income (expense).", "label": "Interest And Other Non Operating Income Expense", "terseLabel": "Interest and other income, net" } } }, "auth_ref": [] }, "us-gaap_SharesOutstanding": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "SharesOutstanding", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity" ], "lang": { "en-us": { "role": { "label": "Shares, Outstanding", "periodEndLabel": "Ending Balance, Shares", "periodStartLabel": "Beginning Balance, Shares", "documentation": "Number of shares issued which are neither cancelled nor held in the treasury." } } }, "auth_ref": [] }, "dei_DocumentQuarterlyReport": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "DocumentQuarterlyReport", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Document Quarterly Report", "terseLabel": "Document Quarterly Report", "documentation": "Boolean flag that is true only for a form used as an quarterly report." } } }, "auth_ref": [ "r567" ] }, "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Asset Class [Domain]", "terseLabel": "Asset Class", "documentation": "Class of asset." } } }, "auth_ref": [ "r9" ] }, "annx_PrepaidResearchAndDevelopmentCostsCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "PrepaidResearchAndDevelopmentCostsCurrent", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetail": { "parentTag": "us-gaap_PrepaidExpenseAndOtherAssetsCurrent", "weight": 1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetail" ], "lang": { "en-us": { "role": { "documentation": "prepaid research and development costs, current", "label": "Prepaid Research And Development Costs Current", "terseLabel": "Prepaid research and development costs" } } }, "auth_ref": [] }, "annx_MaximumThresholdPeriodAllowedForFilingMarketAuthorisation": { "xbrltype": "durationItemType", "nsuri": "http://annexonbio.com/20230930", "localname": "MaximumThresholdPeriodAllowedForFilingMarketAuthorisation", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "documentation": "Maximum Threshold Period Allowed For Filing Market Authorisation", "label": "Maximum Threshold Period Allowed For Filing Market Authorisation", "terseLabel": "Maximum threshold period allowed for filing market authorization" } } }, "auth_ref": [] }, "us-gaap_IncreaseDecreaseInOtherOperatingAssets": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "IncreaseDecreaseInOtherOperatingAssets", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0, "order": 7.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "negatedLabel": "Other assets", "terseLabel": "Other assets", "label": "Increase (Decrease) in Other Operating Assets", "totalLabel": "Increase (Decrease) in Other Operating Assets, Total", "documentation": "Amount of increase (decrease) in operating assets classified as other." } } }, "auth_ref": [ "r4" ] }, "us-gaap_OtherPrepaidExpenseCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OtherPrepaidExpenseCurrent", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetail": { "parentTag": "us-gaap_PrepaidExpenseAndOtherAssetsCurrent", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetail" ], "lang": { "en-us": { "role": { "label": "Other Prepaid Expense, Current", "terseLabel": "Other prepaid expenses", "documentation": "Amount of asset related to consideration paid in advance for other costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer." } } }, "auth_ref": [ "r582", "r603" ] }, "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail": { "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax", "negatedLabel": "Gross Unrealized Holding Losses", "documentation": "Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r175" ] }, "dei_DocumentPeriodEndDate": { "xbrltype": "dateItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "DocumentPeriodEndDate", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Document Period End Date", "terseLabel": "Document Period End Date", "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD." } } }, "auth_ref": [] }, "us-gaap_OtherAssetsNoncurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OtherAssetsNoncurrent", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_Assets", "weight": 1.0, "order": 4.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "terseLabel": "Other assets", "label": "Other Assets, Noncurrent", "totalLabel": "Total other non-current assets", "documentation": "Amount of noncurrent assets classified as other." } } }, "auth_ref": [ "r102" ] }, "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail": { "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": -1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax", "terseLabel": "Gross Unrealized Holding Gains", "documentation": "Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)." } } }, "auth_ref": [ "r174" ] }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value", "terseLabel": "Aggregate intrinsic value, Exercisable", "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." } } }, "auth_ref": [ "r44" ] }, "us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "PrepaidExpenseAndOtherAssetsCurrentAbstract", "lang": { "en-us": { "role": { "label": "Prepaid Expense and Other Assets, Current [Abstract]" } } }, "auth_ref": [] }, "us-gaap_PrepaidExpenseAndOtherAssetsCurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "PrepaidExpenseAndOtherAssetsCurrent", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0, "order": 2.0 }, "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetail": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Prepaid Expense and Other Assets, Current", "terseLabel": "Prepaid expenses and other current assets", "totalLabel": "Total prepaid expenses and other current assets", "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." } } }, "auth_ref": [ "r583" ] }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax", "terseLabel": "Accumulated other comprehensive loss", "totalLabel": "Accumulated Other Comprehensive Income (Loss), Net of Tax, Total", "documentation": "Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source." } } }, "auth_ref": [ "r20", "r21", "r64", "r107", "r398", "r412", "r413" ] }, "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail": { "parentTag": "us-gaap_PropertyPlantAndEquipmentNet", "weight": -1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail" ], "lang": { "en-us": { "role": { "label": "Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment", "negatedLabel": "Less: accumulated depreciation", "totalLabel": "Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total", "periodStartLabel": "Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance", "periodEndLabel": "Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance", "documentation": "Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services." } } }, "auth_ref": [ "r35", "r101", "r401" ] }, "us-gaap_CommitmentsAndContingencies": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CommitmentsAndContingencies", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Commitments and Contingencies", "terseLabel": "Commitments and contingencies (Note 5)", "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." } } }, "auth_ref": [ "r17", "r54", "r395", "r449" ] }, "us-gaap_ConsolidationPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ConsolidationPolicyTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "label": "Consolidation, Policy [Policy Text Block]", "terseLabel": "Principles of Consolidation", "documentation": "Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary." } } }, "auth_ref": [ "r51", "r533" ] }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract]", "terseLabel": "Cash, cash equivalents and restricted cash" } } }, "auth_ref": [] }, "us-gaap_ProceedsFromCollaborators": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ProceedsFromCollaborators", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Proceeds from Collaborators", "terseLabel": "Proceeds from funding", "documentation": "Cash received from collaborators during the current period." } } }, "auth_ref": [ "r25" ] }, "dei_EntityEmergingGrowthCompany": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityEmergingGrowthCompany", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Emerging Growth Company", "terseLabel": "Entity Emerging Growth Company", "documentation": "Indicate if registrant meets the emerging growth company criteria." } } }, "auth_ref": [ "r565" ] }, "us-gaap_ScheduleOfPropertyPlantAndEquipmentTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ScheduleOfPropertyPlantAndEquipmentTable", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfPropertyAndEquipmentNetDetail" ], "lang": { "en-us": { "role": { "label": "Property, Plant and Equipment [Table]", "terseLabel": "Schedule Of Property Plant And Equipment [Table]", "documentation": "Disclosure of information about physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation." } } }, "auth_ref": [ "r6" ] }, "us-gaap_EarningsPerShareBasic": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "EarningsPerShareBasic", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations" ], "lang": { "en-us": { "role": { "terseLabel": "Net loss per share, basic", "totalLabel": "Net loss per share attributable to common stockholders, basic", "label": "Earnings Per Share, Basic", "documentation": "The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period." } } }, "auth_ref": [ "r120", "r135", "r136", "r137", "r138", "r139", "r144", "r146", "r149", "r150", "r151", "r155", "r326", "r327", "r391", "r406", "r534" ] }, "us-gaap_OperatingExpenses": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OperatingExpenses", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations": { "parentTag": "us-gaap_OperatingIncomeLoss", "weight": -1.0, "order": 0.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations" ], "lang": { "en-us": { "role": { "label": "Operating Expenses", "totalLabel": "Total operating expenses", "documentation": "Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense." } } }, "auth_ref": [] }, "dei_EntityRegistrantName": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityRegistrantName", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Registrant Name", "terseLabel": "Entity Registrant Name", "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC." } } }, "auth_ref": [ "r565" ] }, "us-gaap_BasisOfAccountingPolicyPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "BasisOfAccountingPolicyPolicyTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "label": "Basis of Accounting, Policy [Policy Text Block]", "terseLabel": "Basis of Presentation", "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)." } } }, "auth_ref": [] }, "us-gaap_RestrictedCashNoncurrent": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "RestrictedCashNoncurrent", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_Assets", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Restricted Cash, Noncurrent", "terseLabel": "Restricted cash", "documentation": "Amount of cash 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." } } }, "auth_ref": [ "r89", "r581", "r589" ] }, "us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0, "order": 5.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Increase (Decrease) in Prepaid Expense and Other Assets", "negatedLabel": "Prepaid expenses and other current assets", "totalLabel": "Increase (Decrease) in Prepaid Expense and Other Assets, Total", "documentation": "Amount of increase (decrease) in prepaid expenses, and assets classified as other." } } }, "auth_ref": [ "r4" ] }, "us-gaap_OperatingExpensesAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OperatingExpensesAbstract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperations" ], "lang": { "en-us": { "role": { "label": "Operating Expenses [Abstract]", "terseLabel": "Operating expenses:" } } }, "auth_ref": [] }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect", "totalLabel": "(Decrease) increase in cash, cash equivalents and restricted cash", "documentation": "Amount of increase (decrease) in cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; excluding 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." } } }, "auth_ref": [ "r0", "r69" ] }, "us-gaap_FairValueDisclosuresTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "FairValueDisclosuresTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureFairValueMeasurements" ], "lang": { "en-us": { "role": { "label": "Fair Value Disclosures [Text Block]", "terseLabel": "Fair Value Measurements", "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." } } }, "auth_ref": [ "r328" ] }, "us-gaap_IndemnificationGuaranteeMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "IndemnificationGuaranteeMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Indemnification Agreement [Member]", "terseLabel": "Indemnification Agreement [Member]", "documentation": "An agreement (contract) that contingently requires the guarantor to make payments to the guaranteed party in compensation for that party's or parties' loss or injury attributable to specified events or actions, such as a patent infringement action against an entity that relied on certain representations as to ownership rights made by a software vendor." } } }, "auth_ref": [ "r609" ] }, "us-gaap_CorporateDebtSecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CorporateDebtSecuritiesMember", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfFinancialAssetsMeasuredAtFairValueOnARecurringBasisDetail" ], "lang": { "en-us": { "role": { "label": "Corporate Debt Securities [Member]", "terseLabel": "Corporate Debt [Member]", "documentation": "Debt securities issued by domestic or foreign corporate business, banks and other entities with a promise of repayment." } } }, "auth_ref": [ "r544", "r546", "r634" ] }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price", "terseLabel": "Weighted- average exercise price per share, Stock options granted", "documentation": "Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options." } } }, "auth_ref": [ "r273" ] }, "us-gaap_Depreciation": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "Depreciation", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureBalanceSheetComponentsAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Depreciation", "terseLabel": "Depreciation expense", "totalLabel": "Depreciation, Total", "documentation": "The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation." } } }, "auth_ref": [ "r5", "r34" ] }, "us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations", "terseLabel": "Effect of exchange rate changes on cash, cash equivalents and restricted cash", "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." } } }, "auth_ref": [ "r333" ] }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureNetLossPerShareSummaryOfOutstandingPotentiallyDilutiveSharesExcludedFromCalculationOfDilutedNetLossPerShareDetail" ], "lang": { "en-us": { "role": { "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount", "terseLabel": "Anti-dilutive securities excluded from the computation of diluted net loss per share", "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." } } }, "auth_ref": [ "r152" ] }, "us-gaap_RestrictedCash": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "RestrictedCash", "crdr": "debit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails": { "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails" ], "lang": { "en-us": { "role": { "label": "Restricted Cash", "terseLabel": "Restricted cash", "totalLabel": "Restricted Cash, Total", "documentation": "Amount of cash restricted as to withdrawal or usage. 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." } } }, "auth_ref": [ "r580", "r589", "r630", "r632" ] }, "us-gaap_IncomeTaxDisclosureTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "IncomeTaxDisclosureTextBlock", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureIncomeTaxes" ], "lang": { "en-us": { "role": { "label": "Income Tax Disclosure [Text Block]", "terseLabel": "Income Taxes", "documentation": "The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information." } } }, "auth_ref": [ "r127", "r302", "r303", "r304", "r305", "r308", "r309", "r310", "r311", "r420" ] }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "crdr": "debit", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows" ], "lang": { "en-us": { "role": { "label": "Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents", "periodEndLabel": "End of period", "periodStartLabel": "Beginning of period", "totalLabel": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Total", "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." } } }, "auth_ref": [ "r26", "r69", "r124" ] }, "dei_EntityCentralIndexKey": { "xbrltype": "centralIndexKeyItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityCentralIndexKey", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Entity Central Index Key", "terseLabel": "Entity Central Index Key", "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK." } } }, "auth_ref": [ "r565" ] }, "us-gaap_LesseeOperatingLeaseRenewalTerm": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LesseeOperatingLeaseRenewalTerm", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Lessee, Operating Lease, Renewal Term", "terseLabel": "Operating lease, renewal term", "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." } } }, "auth_ref": [ "r619" ] }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice": { "xbrltype": "perShareItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/DisclosureEquityIncentivePlansSummaryOfStockOptionActivityDetail" ], "lang": { "en-us": { "role": { "label": "Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price", "terseLabel": "Weighted- average exercise price per share, Stock options exercised", "documentation": "Weighted average price at which option holders acquired shares when converting their stock options into shares." } } }, "auth_ref": [ "r274" ] }, "us-gaap_LesseeOperatingLeaseTermOfContract": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "LesseeOperatingLeaseTermOfContract", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Lessee, Operating Lease, Term of Contract", "terseLabel": "Operating lease, term of contract", "documentation": "Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days." } } }, "auth_ref": [ "r619" ] }, "us-gaap_AdditionalPaidInCapital": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "AdditionalPaidInCapital", "crdr": "credit", "calculation": { "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": { "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets" ], "lang": { "en-us": { "role": { "label": "Additional Paid in Capital", "terseLabel": "Additional paid-in capital", "totalLabel": "Additional Paid in Capital, Total", "periodStartLabel": "Additional Paid in Capital, Beginning Balance", "periodEndLabel": "Additional Paid in Capital, Ending Balance", "documentation": "Amount of excess of issue price over par or stated value of stock and from other transaction involving stock or stockholder. Includes, but is not limited to, additional paid-in capital (APIC) for common and preferred stock." } } }, "auth_ref": [ "r59", "r551", "r636" ] }, "dei_EntityFileNumber": { "xbrltype": "fileNumberItemType", "nsuri": "http://xbrl.sec.gov/dei/2023", "localname": "EntityFileNumber", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DocumentCoverPage" ], "lang": { "en-us": { "role": { "label": "Securities Act File Number", "terseLabel": "Entity File Number", "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." } } }, "auth_ref": [] }, "us-gaap_StatementTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "StatementTable", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail", "http://annexonbio.com/20230930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity", "http://annexonbio.com/20230930/taxonomy/role/StatementCondensedConsolidatedStatementsOfStockholdersEquityParenthetical" ], "lang": { "en-us": { "role": { "label": "Statement [Table]", "terseLabel": "Statement [Table]", "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." } } }, "auth_ref": [ "r130", "r131", "r132", "r156", "r388", "r414", "r436", "r442", "r443", "r444", "r445", "r446", "r447", "r450", "r453", "r454", "r455", "r456", "r457", "r459", "r460", "r461", "r462", "r464", "r465", "r466", "r467", "r468", "r470", "r473", "r474", "r478", "r479", "r480", "r481", "r482", "r483", "r484", "r485", "r486", "r487", "r488", "r489", "r492", "r556" ] }, "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": { "xbrltype": "durationItemType", "nsuri": "http://fasb.org/us-gaap/2023", "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1", "presentation": [ "http://annexonbio.com/20230930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail" ], "lang": { "en-us": { "role": { "label": "Operating Lease, Weighted Average Remaining Lease Term", "terseLabel": "Weighted average remaining lease term", "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." } } }, "auth_ref": [ "r346", "r550" ] } } } }, "std_ref": { "r0": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "SubTopic": "230", "Topic": "830", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481877/830-230-45-1" }, "r1": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "10A", "SubTopic": "10", "Topic": "220", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482790/220-10-45-10A" }, "r2": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "10A", "Subparagraph": "(a)", "SubTopic": "10", "Topic": "220", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482790/220-10-45-10A" }, "r3": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "14", "Subparagraph": "(a)", "SubTopic": "10", "Topic": "230", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-14" }, "r4": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "28", "Subparagraph": "(a)", "SubTopic": "10", "Topic": "230", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-28" }, "r5": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "28", "Subparagraph": "(b)", "SubTopic": "10", "Topic": "230", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-28" }, "r6": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "SubTopic": "10", "Topic": "360", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482099/360-10-50-1" }, "r7": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1A", "Subparagraph": "(c),(3)", "SubTopic": "10", "Topic": "810", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481203/810-10-50-1A" }, "r8": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "SubTopic": "10", "Topic": "505", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-2" }, "r9": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)", "SubTopic": "10", "Topic": "820", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482106/820-10-50-2" }, "r10": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)", "SubTopic": "10", "Topic": "718", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r11": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(e)", "SubTopic": "10", "Topic": "718", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r12": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2A", "Subparagraph": "(a)", "SubTopic": "10", "Topic": "718", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2A" }, "r13": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "210", "SubTopic": "10", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02.19(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r14": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "210", "SubTopic": "10", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02.19-26)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r15": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "210", "SubTopic": "10", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02.20)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r16": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "210", "SubTopic": "10", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02.21)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r17": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "210", "SubTopic": "10", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02.25)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r18": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "210", "SubTopic": "10", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02.29)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r19": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "210", "SubTopic": "10", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02.29-31)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r20": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "220", "SubTopic": "10", "Section": "45", "Paragraph": "14", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482790/220-10-45-14" }, "r21": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "220", "SubTopic": "10", "Section": "45", "Paragraph": "14A", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482790/220-10-45-14A" }, "r22": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "220", "SubTopic": "10", "Section": "45", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482790/220-10-45-5" }, "r23": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "45", "Paragraph": "13", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-13" }, "r24": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "45", "Paragraph": "15", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-15" }, "r25": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "45", "Paragraph": "25", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-25" }, "r26": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "45", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-4" }, "r27": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482913/230-10-50-3" }, "r28": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482913/230-10-50-4" }, "r29": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "230", "SubTopic": "10", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482913/230-10-50-5" }, "r30": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "260", "SubTopic": "10", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482662/260-10-50-1" }, "r31": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "275", "SubTopic": "10", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482861/275-10-50-4" }, "r32": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "275", "SubTopic": "10", "Section": "50", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482861/275-10-50-8" }, "r33": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "275", "SubTopic": "10", "Section": "50", "Paragraph": "9", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482861/275-10-50-9" }, "r34": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "360", "SubTopic": "10", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482099/360-10-50-1" }, "r35": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "360", "SubTopic": "10", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482099/360-10-50-1" }, "r36": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "480", "SubTopic": "10", "Section": "S99", "Paragraph": "1", "Subparagraph": "(CFRR 211.02)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480244/480-10-S99-1" }, "r37": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "505", "SubTopic": "10", "Section": "45", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481142/505-10-45-2" }, "r38": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "505", "SubTopic": "10", "Section": "50", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-10" }, "r39": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "505", "SubTopic": "10", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-3" }, "r40": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "505", "SubTopic": "10", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-4" }, "r41": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "505", "SubTopic": "10", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-5" }, "r42": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "505", "SubTopic": "10", "Section": "50", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-8" }, "r43": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "718", "SubTopic": "10", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-1" }, "r44": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "718", "SubTopic": "10", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r45": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "718", "SubTopic": "10", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r46": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "718", "SubTopic": "10", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r47": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "718", "SubTopic": "10", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r48": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "718", "SubTopic": "10", "Section": "50", "Paragraph": "2", "Subparagraph": "(h)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r49": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "718", "SubTopic": "20", "Section": "55", "Paragraph": "12", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481089/718-20-55-12" }, "r50": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "718", "SubTopic": "20", "Section": "55", "Paragraph": "13", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481089/718-20-55-13" }, "r51": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "810", "SubTopic": "10", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481203/810-10-50-1" }, "r52": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "820", "SubTopic": "10", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482106/820-10-50-2" }, "r53": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "820", "SubTopic": "10", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482106/820-10-50-3" }, "r54": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "942", "SubTopic": "210", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03.17)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479853/942-210-S99-1" }, "r55": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Topic": "985", "SubTopic": "20", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481283/985-20-50-1" }, "r56": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "205", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org//205/tableOfContent" }, "r57": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(28))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r58": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(29))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r59": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(30)(a)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r60": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(30)(a)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r61": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(30))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r62": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(31))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r63": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(32))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r64": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482790/220-10-45-11" }, "r65": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.5-03(20))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483621/220-10-S99-2" }, "r66": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.5-03(4))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483621/220-10-S99-2" }, "r67": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.5-03.4)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483621/220-10-S99-2" }, "r68": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "13", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-13" }, "r69": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "24", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-24" }, "r70": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "25", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-25" }, "r71": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "28", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-28" }, "r72": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "235", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org//235/tableOfContent" }, "r73": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "275", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org//275/tableOfContent" }, "r74": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SAB Topic 4.E)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480418/310-10-S99-2" }, "r75": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "360", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482099/360-10-50-1" }, "r76": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "440", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org//440/tableOfContent" }, "r77": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "12A", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481573/470-10-45-12A" }, "r78": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "505", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org//505/tableOfContent" }, "r79": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-6" }, "r80": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-7" }, "r81": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.3-04)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480008/505-10-S99-1" }, "r82": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "718", "SubTopic": "10", "Subparagraph": "(e)(1)", "Name": "Accounting Standards Codification", "Paragraph": "2", "Section": "50", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r83": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "718", "SubTopic": "10", "Subparagraph": "(f)(2)", "Name": "Accounting Standards Codification", "Paragraph": "2", "Section": "50", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r84": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482106/820-10-50-2" }, "r85": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(11))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479853/942-210-S99-1" }, "r86": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(23))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479853/942-210-S99-1" }, "r87": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(22))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483589/942-220-S99-1" }, "r88": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "20", "SubTopic": "210", "Topic": "946", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480555/946-210-45-20" }, "r89": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "5", "SubTopic": "210", "Topic": "954", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480632/954-210-45-5" }, "r90": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)", "SubTopic": "10", "Topic": "275", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482861/275-10-50-1" }, "r91": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "SubTopic": "10", "Topic": "275", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482861/275-10-50-1" }, "r92": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "SubTopic": "10", "Topic": "275", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482861/275-10-50-11" }, "r93": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "12", "SubTopic": "10", "Topic": "275", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482861/275-10-50-12" }, "r94": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "(a)", "Publisher": "SEC" }, "r95": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "105", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "6", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479343/105-10-65-6" }, "r96": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "205", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483499/205-20-50-7" }, "r97": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483467/210-10-45-1" }, "r98": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483467/210-10-45-5" }, "r99": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r100": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(13))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r101": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(14))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r102": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(17))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r103": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(18))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r104": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(27)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r105": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(28))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r106": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(29))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r107": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(30)(a)(4))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r108": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(8))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r109": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(9))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r110": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "10A", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482790/220-10-45-10A" }, "r111": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482790/220-10-45-11" }, "r112": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1A", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482790/220-10-45-1A" }, "r113": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1A", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482790/220-10-45-1A" }, "r114": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1B", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482790/220-10-45-1B" }, "r115": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1B", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482790/220-10-45-1B" }, "r116": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482765/220-10-50-4" }, "r117": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482765/220-10-50-5" }, "r118": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482765/220-10-50-6" }, "r119": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.5-03(24))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483621/220-10-S99-2" }, "r120": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.5-03(25))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483621/220-10-S99-2" }, "r121": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-11" }, "r122": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "12", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-12" }, "r123": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "24", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-24" }, "r124": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482913/230-10-50-8" }, "r125": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(e)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480678/235-10-S99-1" }, "r126": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(g)(1)(ii))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480678/235-10-S99-1" }, "r127": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(h)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480678/235-10-S99-1" }, "r128": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(m)(1)(iii))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480678/235-10-S99-1" }, "r129": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(m)(2)(ii))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480678/235-10-S99-1" }, "r130": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "23", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483421/250-10-45-23" }, "r131": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "24", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483421/250-10-45-24" }, "r132": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "5", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483421/250-10-45-5" }, "r133": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483443/250-10-50-1" }, "r134": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483443/250-10-50-1" }, "r135": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483443/250-10-50-11" }, "r136": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483443/250-10-50-11" }, "r137": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483443/250-10-50-3" }, "r138": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483443/250-10-50-4" }, "r139": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483443/250-10-50-7" }, "r140": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483443/250-10-50-7" }, "r141": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483443/250-10-50-8" }, "r142": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483443/250-10-50-9" }, "r143": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org//260/tableOfContent" }, "r144": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482689/260-10-45-10" }, "r145": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "16", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482689/260-10-45-16" }, "r146": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482689/260-10-45-2" }, "r147": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482689/260-10-45-3" }, "r148": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "60B", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482689/260-10-45-60B" }, "r149": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "60B", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482689/260-10-45-60B" }, "r150": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482689/260-10-45-7" }, "r151": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482662/260-10-50-1" }, "r152": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482662/260-10-50-1" }, "r153": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482662/260-10-50-2" }, "r154": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482662/260-10-50-3" }, "r155": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "15", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482635/260-10-55-15" }, "r156": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "272", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483014/272-10-45-1" }, "r157": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "272", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482987/272-10-50-1" }, "r158": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "272", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482987/272-10-50-3" }, "r159": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "22", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482810/280-10-50-22" }, "r160": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "22", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482810/280-10-50-22" }, "r161": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "30", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482810/280-10-50-30" }, "r162": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "30", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482810/280-10-50-30" }, "r163": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "32", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482810/280-10-50-32" }, "r164": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "32", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482810/280-10-50-32" }, "r165": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "32", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482810/280-10-50-32" }, "r166": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "41", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482810/280-10-50-41" }, "r167": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "41", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482810/280-10-50-41" }, "r168": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481830/320-10-45-11" }, "r169": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481830/320-10-45-2" }, "r170": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-2" }, "r171": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-2" }, "r172": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(aa)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-2" }, "r173": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(aaa)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-2" }, "r174": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-2" }, "r175": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-2" }, "r176": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-2" }, "r177": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-3" }, "r178": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-3" }, "r179": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-3" }, "r180": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-3" }, "r181": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-3" }, "r182": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5" }, "r183": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5" }, "r184": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(aaa)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5" }, "r185": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5" }, "r186": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5" }, "r187": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5" }, "r188": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5" }, "r189": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5" }, "r190": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5" }, "r191": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5" }, "r192": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5A", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5A" }, "r193": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5A", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5A" }, "r194": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5A", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5A" }, "r195": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5B", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5B" }, "r196": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5B", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5B" }, "r197": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5B", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5B" }, "r198": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5B", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5B" }, "r199": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5B", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-5B" }, "r200": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-9" }, "r201": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "323", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481687/323-10-50-3" }, "r202": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "4", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479654/326-10-65-4" }, "r203": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "5", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479654/326-10-65-5" }, "r204": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479319/326-20-50-11" }, "r205": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479319/326-20-50-13" }, "r206": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "14", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479319/326-20-50-14" }, "r207": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "16", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479319/326-20-50-16" }, "r208": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479319/326-20-50-5" }, "r209": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479130/326-30-45-1" }, "r210": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479106/326-30-50-4" }, "r211": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479106/326-30-50-7" }, "r212": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479106/326-30-50-9" }, "r213": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "360", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482099/360-10-50-3" }, "r214": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "420", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482017/420-10-50-1" }, "r215": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "440", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482648/440-10-50-4" }, "r216": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "440", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482648/440-10-50-4" }, "r217": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "450", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483076/450-20-50-1" }, "r218": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "450", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483076/450-20-50-4" }, "r219": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "450", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483076/450-20-50-9" }, "r220": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "450", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SAB Topic 5.Y.Q2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480102/450-20-S99-1" }, "r221": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "450", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SAB Topic 5.Y.Q4)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480102/450-20-S99-1" }, "r222": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "460", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482425/460-10-50-3" }, "r223": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1A", "Subparagraph": "(SX 210.13-01(a)(4)(i))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480097/470-10-S99-1A" }, "r224": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1A", "Subparagraph": "(SX 210.13-01(a)(4)(iii)(A))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480097/470-10-S99-1A" }, "r225": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1A", "Subparagraph": "(SX 210.13-01(a)(4)(iv))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480097/470-10-S99-1A" }, "r226": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1A", "Subparagraph": "(SX 210.13-01(a)(5))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480097/470-10-S99-1A" }, "r227": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1B", "Subparagraph": "(SX 210.13-02(a)(4)(i))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480097/470-10-S99-1B" }, "r228": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1B", "Subparagraph": "(SX 210.13-02(a)(4)(iii)(A))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480097/470-10-S99-1B" }, "r229": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1B", "Subparagraph": "(SX 210.13-02(a)(4)(iii)(B))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480097/470-10-S99-1B" }, "r230": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1B", "Subparagraph": "(SX 210.13-02(a)(4)(iv))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480097/470-10-S99-1B" }, "r231": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1B", "Subparagraph": "(SX 210.13-02(a)(5))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480097/470-10-S99-1B" }, "r232": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1B", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481139/470-20-50-1B" }, "r233": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1D", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481139/470-20-50-1D" }, "r234": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1I", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481139/470-20-50-1I" }, "r235": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-13" }, "r236": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-13" }, "r237": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-13" }, "r238": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-13" }, "r239": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(g)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-13" }, "r240": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(h)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-13" }, "r241": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-13" }, "r242": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "14", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-14" }, "r243": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "14", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-14" }, "r244": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "14", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-14" }, "r245": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "16", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-16" }, "r246": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "18", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-18" }, "r247": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "18", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-18" }, "r248": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "18", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-18" }, "r249": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "18", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-18" }, "r250": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-2" }, "r251": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-3" }, "r252": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.3-04)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480008/505-10-S99-1" }, "r253": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480506/715-20-50-1" }, "r254": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480506/715-20-50-1" }, "r255": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(02)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480506/715-20-50-1" }, "r256": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(02)(A)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480506/715-20-50-1" }, "r257": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(02)(B)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480506/715-20-50-1" }, "r258": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(02)(C)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480506/715-20-50-1" }, "r259": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(03)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480506/715-20-50-1" }, "r260": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "715", "SubTopic": "80", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480576/715-80-50-5" }, "r261": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org//718/tableOfContent" }, "r262": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "35", "Paragraph": "1D", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480483/718-10-35-1D" }, "r263": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "35", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480483/718-10-35-2" }, "r264": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "35", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480483/718-10-35-3" }, "r265": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r266": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r267": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r268": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r269": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r270": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r271": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iii)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r272": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r273": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r274": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)(02)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r275": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)(03)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r276": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(1)(iv)(04)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r277": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r278": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r279": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(iii)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r280": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(iii)(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r281": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(iii)(02)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r282": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)(2)(iii)(03)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r283": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r284": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r285": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(e)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r286": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(e)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r287": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r288": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r289": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(iii)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r290": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(iv)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r291": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(f)(2)(v)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r292": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(h)(1)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r293": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(h)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r294": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(h)(2)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r295": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r296": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(l)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r297": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "15", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480336/718-10-65-15" }, "r298": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "15", "Subparagraph": "(f)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480336/718-10-65-15" }, "r299": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "15", "Subparagraph": "(f)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480336/718-10-65-15" }, "r300": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SAB Topic 14.F)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479830/718-10-S99-1" }, "r301": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "730", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482916/730-10-50-1" }, "r302": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org//740/tableOfContent" }, "r303": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "14", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482685/740-10-50-14" }, "r304": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "17", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482685/740-10-50-17" }, "r305": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "21", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482685/740-10-50-21" }, "r306": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "8", "Subparagraph": "(d)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482615/740-10-65-8" }, "r307": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "8", "Subparagraph": "(d)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482615/740-10-65-8" }, "r308": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SAB TOPIC 6.I.5.Q1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479360/740-10-S99-1" }, "r309": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SAB Topic 11.C)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479360/740-10-S99-2" }, "r310": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "270", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482526/740-270-50-1" }, "r311": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "740", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482603/740-30-50-2" }, "r312": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "808", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479402/808-10-50-1" }, "r313": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "810", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "25", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481231/810-10-45-25" }, "r314": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "810", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "25", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481231/810-10-45-25" }, "r315": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "810", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(bb)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481203/810-10-50-3" }, "r316": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "810", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481203/810-10-50-3" }, "r317": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "6", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480528/815-20-65-6" }, "r318": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "6", "Subparagraph": "(h)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480528/815-20-65-6" }, "r319": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "6", "Subparagraph": "(h)(1)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480528/815-20-65-6" }, "r320": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "6", "Subparagraph": "(h)(1)(iii)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480528/815-20-65-6" }, "r321": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "6", "Subparagraph": "(h)(1)(iv)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480528/815-20-65-6" }, "r322": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "6", "Subparagraph": "(i)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480528/815-20-65-6" }, "r323": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480237/815-40-50-5" }, "r324": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480237/815-40-50-6" }, "r325": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "1", "Subparagraph": "(e)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480175/815-40-65-1" }, "r326": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "1", "Subparagraph": "(e)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480175/815-40-65-1" }, "r327": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "815", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "1", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480175/815-40-65-1" }, "r328": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482106/820-10-50-2" }, "r329": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482106/820-10-50-2" }, "r330": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482106/820-10-50-2" }, "r331": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482106/820-10-50-3" }, "r332": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "28", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482907/825-10-50-28" }, "r333": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "230", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481877/830-230-45-1" }, "r334": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "17", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481694/830-30-45-17" }, "r335": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "20", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481694/830-30-45-20" }, "r336": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "20", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481694/830-30-45-20" }, "r337": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "20", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481694/830-30-45-20" }, "r338": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "20", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481694/830-30-45-20" }, "r339": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "830", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481674/830-30-50-1" }, "r340": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "842", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479041/842-20-45-1" }, "r341": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "842", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479041/842-20-45-1" }, "r342": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "842", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "5", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479041/842-20-45-5" }, "r343": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "842", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147478964/842-20-50-4" }, "r344": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "842", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147478964/842-20-50-4" }, "r345": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "842", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(g)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147478964/842-20-50-4" }, "r346": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "842", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(g)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147478964/842-20-50-4" }, "r347": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "842", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147478964/842-20-50-6" }, "r348": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "848", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(a)(3)(iii)(03)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483550/848-10-65-2" }, "r349": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "850", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org//850/tableOfContent" }, "r350": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "850", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483326/850-10-50-1" }, "r351": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "850", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483326/850-10-50-1" }, "r352": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "850", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483326/850-10-50-1" }, "r353": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "850", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483326/850-10-50-3" }, "r354": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "850", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483326/850-10-50-6" }, "r355": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "855", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org//855/tableOfContent" }, "r356": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "855", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483399/855-10-50-2" }, "r357": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(b)(2)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-3" }, "r358": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(b)(2)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-3" }, "r359": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-3" }, "r360": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(bb)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-3" }, "r361": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(bb)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-3" }, "r362": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(bb)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-3" }, "r363": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-3" }, "r364": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-3" }, "r365": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-3" }, "r366": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-4" }, "r367": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-4" }, "r368": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-4" }, "r369": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-4" }, "r370": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481444/860-30-45-1" }, "r371": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481420/860-30-50-7" }, "r372": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-3" }, "r373": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-3" }, "r374": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-3" }, "r375": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)(4)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-3" }, "r376": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-4" }, "r377": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-4" }, "r378": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-4" }, "r379": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(4)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-4" }, "r380": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(5)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-4" }, "r381": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(6)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-4" }, "r382": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)(7)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-4" }, "r383": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-4" }, "r384": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(e)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-4" }, "r385": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(e)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-4" }, "r386": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "860", "SubTopic": "50", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(e)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481229/860-50-50-4" }, "r387": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "910", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482546/910-10-50-6" }, "r388": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "924", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SAB Topic 11.L)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479941/924-10-S99-1" }, "r389": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(6))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479853/942-210-S99-1" }, "r390": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(26))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483589/942-220-S99-1" }, "r391": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-04(27))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483589/942-220-S99-1" }, "r392": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "942", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480842/942-360-50-1" }, "r393": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479440/944-210-S99-1" }, "r394": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(12))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479440/944-210-S99-1" }, "r395": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(19))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479440/944-210-S99-1" }, "r396": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479440/944-210-S99-1" }, "r397": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(22))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479440/944-210-S99-1" }, "r398": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(23)(a)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479440/944-210-S99-1" }, "r399": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479440/944-210-S99-1" }, "r400": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(25))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479440/944-210-S99-1" }, "r401": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(8)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479440/944-210-S99-1" }, "r402": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(8))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479440/944-210-S99-1" }, "r403": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-04(18))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483586/944-220-S99-1" }, "r404": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-04(2)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483586/944-220-S99-1" }, "r405": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-04(22))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483586/944-220-S99-1" }, "r406": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-04(23))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483586/944-220-S99-1" }, "r407": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7A", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480081/944-40-50-7A" }, "r408": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480016/944-40-65-2" }, "r409": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(f)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480016/944-40-65-2" }, "r410": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(f)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480016/944-40-65-2" }, "r411": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(g)(2)(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480016/944-40-65-2" }, "r412": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(g)(2)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480016/944-40-65-2" }, "r413": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "2", "Subparagraph": "(h)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480016/944-40-65-2" }, "r414": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-03(d))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479886/946-10-S99-3" }, "r415": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-03(i)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479886/946-10-S99-3" }, "r416": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-03(i)(2)(i))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479886/946-10-S99-3" }, "r417": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-03(i)(2)(ii))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479886/946-10-S99-3" }, "r418": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-03(i)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479886/946-10-S99-3" }, "r419": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480990/946-20-50-11" }, "r420": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480990/946-20-50-13" }, "r421": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480990/946-20-50-2" }, "r422": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480990/946-20-50-5" }, "r423": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480990/946-20-50-6" }, "r424": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "4", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480767/946-205-45-4" }, "r425": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480737/946-205-50-2" }, "r426": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "27", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480737/946-205-50-27" }, "r427": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480737/946-205-50-7" }, "r428": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480737/946-205-50-7" }, "r429": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480737/946-205-50-7" }, "r430": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480737/946-205-50-7" }, "r431": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480737/946-205-50-7" }, "r432": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480737/946-205-50-7" }, "r433": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(g)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480737/946-205-50-7" }, "r434": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(h)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480737/946-205-50-7" }, "r435": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "21", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480555/946-210-45-21" }, "r436": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480555/946-210-45-4" }, "r437": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480524/946-210-50-1" }, "r438": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480524/946-210-50-2" }, "r439": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480524/946-210-50-6" }, "r440": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480524/946-210-50-6" }, "r441": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480524/946-210-50-6" }, "r442": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r443": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(12)(b)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r444": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(12)(b)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r445": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(12)(b)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r446": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(13)(a)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r447": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(13)(a)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r448": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(14))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r449": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(15))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r450": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(16)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r451": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(17))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r452": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(19))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r453": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(2)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r454": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(2)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r455": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(3)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r456": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(3)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r457": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(3)(c))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r458": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(4))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r459": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(6)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r460": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(6)(c))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r461": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(6)(d))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r462": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(6)(e))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r463": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(8))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r464": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(9)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r465": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(9)(c))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r466": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(9)(d))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r467": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(9)(e))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r468": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.6-05(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-2" }, "r469": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.6-05(4))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-2" }, "r470": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "3", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483581/946-220-45-3" }, "r471": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483581/946-220-45-7" }, "r472": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483580/946-220-50-3" }, "r473": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r474": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(2)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r475": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(2)(c))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r476": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(2)(e))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r477": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(2)(g)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r478": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(a)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r479": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(a)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r480": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(a)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r481": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(a)(5))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r482": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(a)(6))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r483": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(a)(7))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r484": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(c)(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r485": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(c)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r486": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(c)(3))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r487": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(c)(5))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r488": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(c)(6))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r489": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(7)(c)(7))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r490": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-07(9))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-1" }, "r491": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-09(1)(d))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-3" }, "r492": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-09(4)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-3" }, "r493": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-09(6))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-3" }, "r494": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-09(7))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-3" }, "r495": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481062/946-235-50-2" }, "r496": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481062/946-235-50-2" }, "r497": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481062/946-235-50-2" }, "r498": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "235", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481062/946-235-50-2" }, "r499": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-12(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480032/946-320-S99-1" }, "r500": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-12(Column C)(Footnote 5))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480032/946-320-S99-1" }, "r501": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.12-12A(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480032/946-320-S99-2" }, "r502": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.12-12A(Column C)(Footnote 4))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480032/946-320-S99-2" }, "r503": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-12B(Column A)(Footnote 4)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480032/946-320-S99-3" }, "r504": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-12B(Column A)(Footnote 4)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480032/946-320-S99-3" }, "r505": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480032/946-320-S99-3" }, "r506": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "6", "Subparagraph": "(SX 210.12-14(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480032/946-320-S99-6" }, "r507": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "6", "Subparagraph": "(SX 210.12-14(Column F)(Footnote 7))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480032/946-320-S99-6" }, "r508": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "505", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481004/946-505-50-1" }, "r509": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "505", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481004/946-505-50-2" }, "r510": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "505", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481004/946-505-50-2" }, "r511": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "505", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481004/946-505-50-2" }, "r512": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "505", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481004/946-505-50-2" }, "r513": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "505", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481004/946-505-50-6" }, "r514": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "948", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-29(Footnote 4))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479851/948-310-S99-1" }, "r515": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "954", "SubTopic": "440", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480327/954-440-50-1" }, "r516": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column B))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479438/970-360-S99-1" }, "r517": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column C))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479438/970-360-S99-1" }, "r518": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column D))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479438/970-360-S99-1" }, "r519": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column E))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479438/970-360-S99-1" }, "r520": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column F))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479438/970-360-S99-1" }, "r521": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column G))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479438/970-360-S99-1" }, "r522": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column H))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479438/970-360-S99-1" }, "r523": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Column I))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479438/970-360-S99-1" }, "r524": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "970", "SubTopic": "360", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-28(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479438/970-360-S99-1" }, "r525": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "976", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482856/976-310-50-1" }, "r526": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "978", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482707/978-310-50-1" }, "r527": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "13H", "Subparagraph": "(b)", "SubTopic": "40", "Topic": "944", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480046/944-40-55-13H" }, "r528": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483467/210-10-45-1" }, "r529": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Subparagraph": "(g)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483467/210-10-45-1" }, "r530": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "210", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "16", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483444/210-20-55-16" }, "r531": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "210", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "21", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483444/210-20-55-21" }, "r532": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "210", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "22", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483444/210-20-55-22" }, "r533": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483426/235-10-50-4" }, "r534": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "52", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482635/260-10-55-52" }, "r535": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "30", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482810/280-10-50-30" }, "r536": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "280", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "31", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482810/280-10-50-31" }, "r537": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "310", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12A", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481933/310-10-55-12A" }, "r538": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479081/326-30-55-8" }, "r539": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "340", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "05", "Paragraph": "5", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482955/340-10-05-5" }, "r540": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "470", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "69B", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481568/470-20-55-69B" }, "r541": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "470", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "69C", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481568/470-20-55-69C" }, "r542": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481112/505-10-50-13" }, "r543": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "606", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "91", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479777/606-10-55-91" }, "r544": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480506/715-20-50-1" }, "r545": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480506/715-20-50-1" }, "r546": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "17", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480482/715-20-55-17" }, "r547": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "80", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480547/715-80-55-8" }, "r548": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r549": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r550": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "842", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "53", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479589/842-20-55-53" }, "r551": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "852", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481372/852-10-55-10" }, "r552": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "944", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "29F", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480046/944-40-55-29F" }, "r553": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480524/946-210-50-1" }, "r554": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480524/946-210-50-6" }, "r555": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480493/946-210-55-1" }, "r556": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "310", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480833/946-310-45-1" }, "r557": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-12(Column A)(Footnote 2)(i))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480032/946-320-S99-1" }, "r558": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.12-12A(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480032/946-320-S99-2" }, "r559": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-12B(Column A)(Footnote 1)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480032/946-320-S99-3" }, "r560": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "6", "Subparagraph": "(SX 210.12-14(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480032/946-320-S99-6" }, "r561": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "830", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480167/946-830-55-10" }, "r562": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "830", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480167/946-830-55-11" }, "r563": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "830", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "12", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480167/946-830-55-12" }, "r564": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "12", "Subsection": "b" }, "r565": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "12", "Subsection": "b-2" }, "r566": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "12", "Subsection": "d1-1" }, "r567": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form 10-Q", "Number": "240", "Section": "308", "Subsection": "a" }, "r568": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Forms 10-K, 10-Q, 20-F", "Number": "240", "Section": "13", "Subsection": "a-1" }, "r569": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-T", "Number": "232", "Section": "405" }, "r570": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Securities Act", "Number": "7A", "Section": "B", "Subsection": "2" }, "r571": { "role": "http://www.xbrl.org/2003/role/recommendedDisclosureRef", "Topic": "272", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483014/272-10-45-3" }, "r572": { "role": "http://www.xbrl.org/2003/role/recommendedDisclosureRef", "Topic": "450", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483076/450-20-50-10" }, "r573": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "(a)", "Publisher": "SEC" }, "r574": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "(b)", "Subparagraph": "(1)", "Publisher": "SEC" }, "r575": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "(b)", "Subparagraph": "(2)", "Publisher": "SEC" }, "r576": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "(b)", "Subparagraph": "(3)", "Publisher": "SEC" }, "r577": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "(c)", "Subparagraph": "(2)(i)", "Publisher": "SEC" }, "r578": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "(c)", "Subparagraph": "(2)(ii)", "Publisher": "SEC" }, "r579": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Regulation S-K (SK)", "Number": "229", "Section": "1402", "Paragraph": "(c)", "Subparagraph": "(2)(iii)", "Publisher": "SEC" }, "r580": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(1))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r581": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(17))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r582": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(7))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r583": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "210", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.5-02(9))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480566/210-10-S99-1" }, "r584": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482765/220-10-50-4" }, "r585": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482765/220-10-50-5" }, "r586": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "220", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482765/220-10-50-6" }, "r587": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "28", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-28" }, "r588": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "28", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482740/230-10-45-28" }, "r589": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "230", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482913/230-10-50-8" }, "r590": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(d))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480678/235-10-S99-1" }, "r591": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "235", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.4-08(g)(1)(ii))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480678/235-10-S99-1" }, "r592": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "23", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483421/250-10-45-23" }, "r593": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "24", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483421/250-10-45-24" }, "r594": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "5", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483421/250-10-45-5" }, "r595": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "260", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "55", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482689/260-10-45-55" }, "r596": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481830/320-10-45-1" }, "r597": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "11", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481830/320-10-45-11" }, "r598": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481800/320-10-50-9" }, "r599": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "321", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479536/321-10-50-3" }, "r600": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "321", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479536/321-10-50-3" }, "r601": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "321", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479536/321-10-50-3" }, "r602": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "323", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481687/323-10-50-3" }, "r603": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "340", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483032/340-10-45-1" }, "r604": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "410", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "10", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481931/410-30-50-10" }, "r605": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "450", "Name": "Accounting Standards Codification", "Publisher": "FASB", "URI": "https://asc.fasb.org//450/tableOfContent" }, "r606": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "450", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483076/450-20-50-4" }, "r607": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "450", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "9", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483076/450-20-50-9" }, "r608": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "450", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483049/450-30-50-1" }, "r609": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "460", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482425/460-10-50-3" }, "r610": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1A", "Subparagraph": "(SX 210.13-01(a)(4)(ii))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480097/470-10-S99-1A" }, "r611": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1A", "Subparagraph": "(SX 210.13-01(a)(4)(iii))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480097/470-10-S99-1A" }, "r612": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "470", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1B", "Subparagraph": "(d)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481139/470-20-50-1B" }, "r613": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "606", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479806/606-10-50-5" }, "r614": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480506/715-20-50-1" }, "r615": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "718", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480429/718-10-50-2" }, "r616": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "815", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "1", "Subparagraph": "(e)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480175/815-40-65-1" }, "r617": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(bbb)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482106/820-10-50-2" }, "r618": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "825", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "28", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482907/825-10-50-28" }, "r619": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "842", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(a)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147478964/842-20-50-3" }, "r620": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "842", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147478964/842-20-50-6" }, "r621": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "852", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481404/852-10-50-7" }, "r622": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "852", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481404/852-10-50-7" }, "r623": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-3" }, "r624": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-3" }, "r625": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Subparagraph": "(c)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-3" }, "r626": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-4" }, "r627": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-4" }, "r628": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "860", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "4", "Subparagraph": "(b)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147481326/860-20-50-4" }, "r629": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "912", "SubTopic": "730", "Name": "Accounting Standards Codification", "Section": "25", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147482517/912-730-25-1" }, "r630": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "942", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.9-03(1)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479853/942-210-S99-1" }, "r631": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "942", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480832/942-320-50-2" }, "r632": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.7-03(a)(2))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479440/944-210-S99-1" }, "r633": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2B", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479432/944-30-50-2B" }, "r634": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "80", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480109/944-80-50-1" }, "r635": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "4", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147480767/946-205-45-4" }, "r636": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.6-04(18))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147479617/946-210-S99-1" }, "r637": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-09(4)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org//1943274/2147483575/946-220-S99-3" } } }