{ "instance": { "mofg-20200630.htm": { "axisCustom": 0, "axisStandard": 38, "contextCount": 602, "dts": { "calculationLink": { "local": [ "mofg-20200630_cal.xml" ] }, "definitionLink": { "local": [ "mofg-20200630_def.xml" ], "remote": [ "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-eedm-def-2020-01-31.xml", "http://xbrl.fasb.org/srt/2020/elts/srt-eedm1-def-2020-01-31.xml" ] }, "inline": { "local": [ "mofg-20200630.htm" ] }, "labelLink": { "local": [ "mofg-20200630_lab.xml" ], "remote": [ "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-doc-2020-01-31.xml", "https://xbrl.sec.gov/dei/2019/dei-doc-2019-01-31.xml" ] }, "presentationLink": { "local": [ "mofg-20200630_pre.xml" ] }, "referenceLink": { "remote": [ "https://xbrl.sec.gov/dei/2019/dei-ref-2019-01-31.xml", "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-ref-2020-01-31.xml" ] }, "schema": { "local": [ "mofg-20200630.xsd" ], "remote": [ "http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd", "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/dtr/type/numeric-2009-12-16.xsd", "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd", "http://www.xbrl.org/2005/xbrldt-2005.xsd", "http://www.xbrl.org/2006/ref-2006-02-27.xsd", "http://xbrl.fasb.org/srt/2020/elts/srt-types-2020-01-31.xsd", "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd", "http://xbrl.fasb.org/us-gaap/2020/elts/us-roles-2020-01-31.xsd", "http://xbrl.fasb.org/srt/2020/elts/srt-roles-2020-01-31.xsd", "https://xbrl.sec.gov/country/2020/country-2020-01-31.xsd", "http://xbrl.fasb.org/us-gaap/2020/elts/us-types-2020-01-31.xsd", "https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd", "https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd", "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd", "http://xbrl.fasb.org/us-gaap/2020/elts/us-parts-codification-2020-01-31.xsd", "http://www.xbrl.org/lrr/role/deprecated-2009-12-16.xsd" ] } }, "elementCount": 790, "entityCount": 1, "hidden": { "http://fasb.org/us-gaap/2020-01-31": 11, "http://xbrl.sec.gov/dei/2019-01-31": 5, "total": 16 }, "keyCustom": 46, "keyStandard": 512, "memberCustom": 26, "memberStandard": 80, "nsprefix": "mofg", "nsuri": "http://www.midwestone.com/20200630", "report": { "R1": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "true", "longName": "0001001 - Document - Cover Page", "role": "http://www.midwestone.com/role/CoverPage", "shortName": "Cover Page", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R10": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2104102 - Disclosure - Effect of New Financial Accounting Standards", "role": "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandards", "shortName": "Effect of New Financial Accounting Standards", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R11": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2107103 - Disclosure - Debt Securities", "role": "http://www.midwestone.com/role/DebtSecurities", "shortName": "Debt Securities", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R12": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2114104 - Disclosure - Loans Receivable and the Allowance for Credit Losses", "role": "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLosses", "shortName": "Loans Receivable and the Allowance for Credit Losses", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R13": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2126105 - Disclosure - Derivatives, Hedging Activities and Balance Sheet Offsetting", "role": "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsetting", "shortName": "Derivatives, Hedging Activities and Balance Sheet Offsetting", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R14": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2134106 - Disclosure - Goodwill and Intangible Assets", "role": "http://www.midwestone.com/role/GoodwillandIntangibleAssets", "shortName": "Goodwill and Intangible Assets", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R15": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OtherAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2139107 - Disclosure - Other Assets", "role": "http://www.midwestone.com/role/OtherAssets", "shortName": "Other Assets", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OtherAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R16": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DepositLiabilitiesDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2142108 - Disclosure - Deposits", "role": "http://www.midwestone.com/role/Deposits", "shortName": "Deposits", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DepositLiabilitiesDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R17": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ShortTermDebtTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2145109 - Disclosure - Short-Term Borrowings", "role": "http://www.midwestone.com/role/ShortTermBorrowings", "shortName": "Short-Term Borrowings", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ShortTermDebtTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R18": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LongTermDebtTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2148110 - Disclosure - Long-Term Debt", "role": "http://www.midwestone.com/role/LongTermDebt", "shortName": "Long-Term Debt", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LongTermDebtTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R19": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2153111 - Disclosure - Income Taxes", "role": "http://www.midwestone.com/role/IncomeTaxes", "shortName": "Income Taxes", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R2": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:CashAndDueFromBanks", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1001002 - Statement - Consolidated Balance Sheets", "role": "http://www.midwestone.com/role/ConsolidatedBalanceSheets", "shortName": "Consolidated Balance Sheets", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:CashAndDueFromBanks", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R20": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2156112 - Disclosure - Earnings per Share", "role": "http://www.midwestone.com/role/EarningsperShare", "shortName": "Earnings per Share", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R21": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2159113 - Disclosure - Regulatory Capital Requirements and Restrictions on Subsidiary Cash", "role": "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCash", "shortName": "Regulatory Capital Requirements and Restrictions on Subsidiary Cash", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R22": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2162114 - Disclosure - Commitments and Contingencies", "role": "http://www.midwestone.com/role/CommitmentsandContingencies", "shortName": "Commitments and Contingencies", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R23": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2166115 - Disclosure - Fair Value of Financial Instruments and Fair Value Measurements", "role": "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurements", "shortName": "Fair Value of Financial Instruments and Fair Value Measurements", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R24": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2171116 - Disclosure - Leases", "role": "http://www.midwestone.com/role/Leases", "shortName": "Leases", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R25": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SubsequentEventsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2176117 - Disclosure - Subsequent Events", "role": "http://www.midwestone.com/role/SubsequentEvents", "shortName": "Subsequent Events", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SubsequentEventsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R26": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2202201 - Disclosure - Summary of Significant Accounting Policies (Policies)", "role": "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesPolicies", "shortName": "Summary of Significant Accounting Policies (Policies)", "subGroupType": "policies", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R27": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2305301 - Disclosure - Effect of New Financial Accounting Standards (Tables)", "role": "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsTables", "shortName": "Effect of New Financial Accounting Standards (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R28": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DebtSecuritiesAvailableForSaleTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2308302 - Disclosure - Debt Securities (Tables)", "role": "http://www.midwestone.com/role/DebtSecuritiesTables", "shortName": "Debt Securities (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DebtSecuritiesAvailableForSaleTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R29": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2315303 - Disclosure - Loans Receivable and the Allowance for Credit Losses (Tables)", "role": "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTables", "shortName": "Loans Receivable and the Allowance for Credit Losses (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R3": { "firstAnchor": { "ancestors": [ "us-gaap:PreferredStockParOrStatedValuePerShare", "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:PreferredStockParOrStatedValuePerShare", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1002003 - Statement - Consolidated Balance Sheets (Parenthetical)", "role": "http://www.midwestone.com/role/ConsolidatedBalanceSheetsParenthetical", "shortName": "Consolidated Balance Sheets (Parenthetical)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "us-gaap:PreferredStockParOrStatedValuePerShare", "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:PreferredStockParOrStatedValuePerShare", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" } }, "R30": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2327304 - Disclosure - Derivatives, Hedging Activities and Balance Sheet Offsetting (Tables)", "role": "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingTables", "shortName": "Derivatives, Hedging Activities and Balance Sheet Offsetting (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R31": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfGoodwillTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2335305 - Disclosure - Goodwill and Intangible Assets (Tables)", "role": "http://www.midwestone.com/role/GoodwillandIntangibleAssetsTables", "shortName": "Goodwill and Intangible Assets (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfGoodwillTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R32": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfOtherAssetsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2340306 - Disclosure - Other Assets (Tables)", "role": "http://www.midwestone.com/role/OtherAssetsTables", "shortName": "Other Assets (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfOtherAssetsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R33": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DepositLiabilitiesTypeTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2343307 - Disclosure - Deposits (Tables)", "role": "http://www.midwestone.com/role/DepositsTables", "shortName": "Deposits (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DepositLiabilitiesTypeTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R34": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShortTermDebtTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2346308 - Disclosure - Short-Term Borrowings (Tables)", "role": "http://www.midwestone.com/role/ShortTermBorrowingsTables", "shortName": "Short-Term Borrowings (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShortTermDebtTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R35": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDebtInstrumentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2349309 - Disclosure - Long-Term Debt (Tables)", "role": "http://www.midwestone.com/role/LongTermDebtTables", "shortName": "Long-Term Debt (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDebtInstrumentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R36": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2354310 - Disclosure - Income Taxes (Tables)", "role": "http://www.midwestone.com/role/IncomeTaxesTables", "shortName": "Income Taxes (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R37": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2357311 - Disclosure - Earnings per Share (Tables)", "role": "http://www.midwestone.com/role/EarningsperShareTables", "shortName": "Earnings per Share (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R38": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2360312 - Disclosure - Regulatory Capital Requirements and Restrictions on Subsidiary Cash (Tables)", "role": "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashTables", "shortName": "Regulatory Capital Requirements and Restrictions on Subsidiary Cash (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R39": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OtherCommitmentsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2363313 - Disclosure - Commitments and Contingencies (Tables)", "role": "http://www.midwestone.com/role/CommitmentsandContingenciesTables", "shortName": "Commitments and Contingencies (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OtherCommitmentsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R4": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:InterestAndFeeIncomeLoansAndLeases", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1003004 - Statement - Consolidated Statements of Income", "role": "http://www.midwestone.com/role/ConsolidatedStatementsofIncome", "shortName": "Consolidated Statements of Income", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:InterestAndFeeIncomeLoansAndLeases", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R40": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2367314 - Disclosure - Fair Value of Financial Instruments and Fair Value Measurements (Tables)", "role": "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsTables", "shortName": "Fair Value of Financial Instruments and Fair Value Measurements (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R41": { "firstAnchor": { "ancestors": [ "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "mofg:ScheduleofLeaseAssetsandLiabilitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2372315 - Disclosure - Leases (Tables)", "role": "http://www.midwestone.com/role/LeasesTables", "shortName": "Leases (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "mofg:ScheduleofLeaseAssetsandLiabilitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R42": { "firstAnchor": { "ancestors": [ "span", "div", "us-gaap:SegmentReportingPolicyPolicyTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:NumberOfOperatingSegments", "reportCount": 1, "unique": true, "unitRef": "segment", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2403402 - Disclosure - Summary of Significant Accounting Policies (Details)", "role": "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails", "shortName": "Summary of Significant Accounting Policies (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "us-gaap:SegmentReportingPolicyPolicyTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:NumberOfOperatingSegments", "reportCount": 1, "unique": true, "unitRef": "segment", "xsiNil": "false" } }, "R43": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:RetainedEarningsAccumulatedDeficit", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2406403 - Disclosure - Effect of New Financial Accounting Standards (Details)", "role": "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "shortName": "Effect of New Financial Accounting Standards (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i81b8f7b867034f61be8d5ed25ec5b3af_I20200101", "decimals": "-5", "lang": "en-US", "name": "us-gaap:RetainedEarningsAccumulatedDeficit", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R44": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:DebtSecuritiesAvailableForSaleTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2409404 - Disclosure - Debt Securities - Schedule of Available for Sale Securities (Details)", "role": "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails", "shortName": "Debt Securities - Schedule of Available for Sale Securities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:DebtSecuritiesAvailableForSaleTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R45": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-5", "first": true, "lang": "en-US", "name": "us-gaap:PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2410405 - Disclosure - Debt Securities - Additional Information (Details)", "role": "http://www.midwestone.com/role/DebtSecuritiesAdditionalInformationDetails", "shortName": "Debt Securities - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "iaffa8c4d96ac47f39bc4185f0f3d69dd_I20200630", "decimals": "-5", "lang": "en-US", "name": "us-gaap:InterestReceivable", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R46": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfTemporaryImpairmentLossesInvestmentsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions", "reportCount": 1, "unitRef": "security", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2411406 - Disclosure - Debt Securities - Available for Sale Securities in Continuous Loss Position (Details)", "role": "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails", "shortName": "Debt Securities - Available for Sale Securities in Continuous Loss Position (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfTemporaryImpairmentLossesInvestmentsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R47": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfRealizedGainLossTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2412407 - Disclosure - Debt Securities - Proceeds and Gross Realized Gains (Losses) (Details)", "role": "http://www.midwestone.com/role/DebtSecuritiesProceedsandGrossRealizedGainsLossesDetails", "shortName": "Debt Securities - Proceeds and Gross Realized Gains (Losses) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfRealizedGainLossTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R48": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2413408 - Disclosure - Debt Securities - Investments Classified by Contractual Maturity (Details)", "role": "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails", "shortName": "Debt Securities - Investments Classified by Contractual Maturity (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R49": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NotesReceivableGross", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2416409 - Disclosure - Loans Receivable and the Allowance for Credit Losses - Composition of Loans by Lending Classification (Details)", "role": "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "shortName": "Loans Receivable and the Allowance for Credit Losses - Composition of Loans by Lending Classification (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-5", "lang": "en-US", "name": "us-gaap:PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedForFederalHomeLoanBankDebt", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R5": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1004005 - Statement - Consolidated Statement of Comprehensive Income", "role": "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome", "shortName": "Consolidated Statement of Comprehensive Income", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R50": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:PastDueFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FinancingReceivableRecordedInvestmentCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2417410 - Disclosure - Loans Receivable and the Allowance for Credit Losses - Amortized Cost Basis Based on Delinquency Status (Details)", "role": "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "shortName": "Loans Receivable and the Allowance for Credit Losses - Amortized Cost Basis Based on Delinquency Status (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:PastDueFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FinancingReceivableRecordedInvestmentCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R51": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2418411 - Disclosure - Loans Receivable and the Allowance for Credit Losses - Nonaccrual Status and Interest Income (Details)", "role": "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "shortName": "Loans Receivable and the Allowance for Credit Losses - Nonaccrual Status and Interest Income (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i4faed62217594e33b923a445d362571d_I20191231", "decimals": "-3", "lang": "en-US", "name": "us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R52": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2419412 - Disclosure - Loans Receivable and the Allowance for Credit Losses - Loans by Credit Quality Indicator (Details)", "role": "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "shortName": "Loans Receivable and the Allowance for Credit Losses - Loans by Credit Quality Indicator (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R53": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "iaf1c1ffc1f464c3a9f4a1155cf36089c_I20200331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FinancingReceivableAllowanceForCreditLosses", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2420413 - Disclosure - Loans Receivable and the Allowance for Credit Losses - Activity in Allowance for Credit Losses (Details)", "role": "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails", "shortName": "Loans Receivable and the Allowance for Credit Losses - Activity in Allowance for Credit Losses (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R54": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FinancingReceivableIndividuallyEvaluatedForImpairment", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2421414 - Disclosure - Loans Receivable and the Allowance for Credit Losses - Allowance for Loan Losses Based on Evaluation Method (Details)", "role": "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails", "shortName": "Loans Receivable and the Allowance for Credit Losses - Allowance for Loan Losses Based on Evaluation Method (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FinancingReceivableIndividuallyEvaluatedForImpairment", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R55": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NotesReceivableNet", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2422415 - Disclosure - Loans Receivable and the Allowance for Credit Losses - Primary Type of Collateral (Details)", "role": "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails", "shortName": "Loans Receivable and the Allowance for Credit Losses - Primary Type of Collateral (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "mofg:FinancingReceivableCollateralDependLoansTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i8bdd934101344b9db6da9dcc580adfa9_I20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:NotesReceivableNet", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R56": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-5", "first": true, "lang": "en-US", "name": "us-gaap:FinancingReceivableModificationsRecordedInvestment", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2423416 - Disclosure - Loans Receivable and the Allowance for Credit Losses - TDR Disclosures (Details)", "role": "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails", "shortName": "Loans Receivable and the Allowance for Credit Losses - TDR Disclosures (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i4faed62217594e33b923a445d362571d_I20191231", "decimals": "-5", "lang": "en-US", "name": "us-gaap:FinancingReceivableModificationsRecordedInvestment", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R57": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ImpairedFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i4faed62217594e33b923a445d362571d_I20191231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2424417 - Disclosure - Loans Receivable and the Allowance for Credit Losses - Pre-ASC 326 Impaired Loan Disclosure (Details)", "role": "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "shortName": "Loans Receivable and the Allowance for Credit Losses - Pre-ASC 326 Impaired Loan Disclosure (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ImpairedFinancingReceivablesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i4faed62217594e33b923a445d362571d_I20191231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R58": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i4faed62217594e33b923a445d362571d_I20191231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NotesReceivableNet", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2425418 - Disclosure - Loans Receivable and the Allowance for Credit Losses - PCD Loans (Details)", "role": "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails", "shortName": "Loans Receivable and the Allowance for Credit Losses - PCD Loans (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "mofg:FinancingReceivablePurchasedWithCreditDeteriorationTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "icff654e493dd42f384c3c7799860fa8c_D20190101-20191231", "decimals": "-3", "lang": "en-US", "name": "us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R59": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfOtherAssetsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DerivativeAssets", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2428419 - Disclosure - Derivatives, Hedging Activities and Balance Sheet Offsetting - Derivatives and Hedging Activities (Details)", "role": "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "shortName": "Derivatives, Hedging Activities and Balance Sheet Offsetting - Derivatives and Hedging Activities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i0577abc7387d415cb467c0ab0eb435be_I20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:DerivativeAssets", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R6": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ife6c1f6cecaa4ba4a35ae98b5e7c47d4_I20181231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:StockholdersEquity", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1005006 - Statement - Consolidated Statements of Shareholders' Equity", "role": "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity", "shortName": "Consolidated Statements of Shareholders' Equity", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i1d6d8fdfa4c64cf3a027ad2433f0b14c_D20190101-20190331", "decimals": "-3", "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R60": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2429420 - Disclosure - Derivatives, Hedging Activities and Balance Sheet Offsetting - Additional Information (Details)", "role": "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails", "shortName": "Derivatives, Hedging Activities and Balance Sheet Offsetting - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R61": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2430421 - Disclosure - Derivatives, Hedging Activities and Balance Sheet Offsetting - Schedule of Impacts on Statements (Details)", "role": "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails", "shortName": "Derivatives, Hedging Activities and Balance Sheet Offsetting - Schedule of Impacts on Statements (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ie068ba22a290426797af3a27e9ad8882_D20200401-20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R62": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "mofg:HedgedItemsInFairValueHedgingRelationshipTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i7c8b492da61945dfa388f5ce84e2da12_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:HedgedAssetFairValueHedge", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2431422 - Disclosure - Derivatives, Hedging Activities and Balance Sheet Offsetting - Hedged Items in Fair Value Hedging Relationship (Details)", "role": "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingHedgedItemsinFairValueHedgingRelationshipDetails", "shortName": "Derivatives, Hedging Activities and Balance Sheet Offsetting - Hedged Items in Fair Value Hedging Relationship (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "mofg:HedgedItemsInFairValueHedgingRelationshipTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i7c8b492da61945dfa388f5ce84e2da12_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:HedgedAssetFairValueHedge", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R63": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2432423 - Disclosure - Derivatives, Hedging Activities and Balance Sheet Offsetting - Schedule of Other Derivatives Not Designated as Hedging Instruments (Details)", "role": "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofOtherDerivativesNotDesignatedasHedgingInstrumentsDetails", "shortName": "Derivatives, Hedging Activities and Balance Sheet Offsetting - Schedule of Other Derivatives Not Designated as Hedging Instruments (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R64": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "mofg:OffsettingDerivativeAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DerivativeFairValueOfDerivativeAsset", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2433424 - Disclosure - Derivatives, Hedging Activities and Balance Sheet Offsetting - Offsetting Derivative Assets and Liabilities (Details)", "role": "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails", "shortName": "Derivatives, Hedging Activities and Balance Sheet Offsetting - Offsetting Derivative Assets and Liabilities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "mofg:OffsettingDerivativeAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DerivativeFairValueOfDerivativeAsset", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R65": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i4faed62217594e33b923a445d362571d_I20191231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:Goodwill", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2436425 - Disclosure - Goodwill and Intangible Assets - Goodwill and Additional Information (Details)", "role": "http://www.midwestone.com/role/GoodwillandIntangibleAssetsGoodwillandAdditionalInformationDetails", "shortName": "Goodwill and Intangible Assets - Goodwill and Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfGoodwillTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:GoodwillPeriodIncreaseDecrease", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R66": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock", "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2437426 - Disclosure - Goodwill and Intangible Assets - Intangible Assets (Details)", "role": "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails", "shortName": "Goodwill and Intangible Assets - Intangible Assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock", "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R67": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2438427 - Disclosure - Goodwill and Intangible Assets - Schedule of Future Amortization Expense (Details)", "role": "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails", "shortName": "Goodwill and Intangible Assets - Schedule of Future Amortization Expense (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R68": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfOtherAssetsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:BankOwnedLifeInsurance", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2441428 - Disclosure - Other Assets (Details)", "role": "http://www.midwestone.com/role/OtherAssetsDetails", "shortName": "Other Assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfOtherAssetsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:BankOwnedLifeInsurance", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R69": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NoninterestBearingDepositLiabilities", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2444429 - Disclosure - Deposits (Details)", "role": "http://www.midwestone.com/role/DepositsDetails", "shortName": "Deposits (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:DepositLiabilitiesTypeTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:DepositsMoneyMarketDeposits", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R7": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1007007 - Statement - Consolidated Statements of Cash Flows", "role": "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows", "shortName": "Consolidated Statements of Cash Flows", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:DepreciationDepletionAndAmortization", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R70": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfShortTermDebtTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "4", "first": true, "lang": "en-US", "name": "us-gaap:ShortTermDebtWeightedAverageInterestRate", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2447430 - Disclosure - Short-Term Borrowings (Details)", "role": "http://www.midwestone.com/role/ShortTermBorrowingsDetails", "shortName": "Short-Term Borrowings (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfShortTermDebtTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "4", "first": true, "lang": "en-US", "name": "us-gaap:ShortTermDebtWeightedAverageInterestRate", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R71": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDebtInstrumentsTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "iee553201a0134280a85a349caf0aca3d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DebtInstrumentFaceAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2450431 - Disclosure - Long-Term Debt - Junior Subordinated Notes (Details)", "role": "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails", "shortName": "Long-Term Debt - Junior Subordinated Notes (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDebtInstrumentsTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "iee553201a0134280a85a349caf0aca3d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DebtInstrumentFaceAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R72": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i7641caa14a7c4af5bdf746276b3925ed_I20190501", "decimals": "-5", "first": true, "lang": "en-US", "name": "us-gaap:DebtInstrumentFaceAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2451432 - Disclosure - Long-Term Debt - Subordinated Debentures (Details)", "role": "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "shortName": "Long-Term Debt - Subordinated Debentures (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i7641caa14a7c4af5bdf746276b3925ed_I20190501", "decimals": "-5", "first": true, "lang": "en-US", "name": "us-gaap:DebtInstrumentFaceAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R73": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "if4baa07276594d55b55f2da5cd77d23d_I20200630", "decimals": "4", "first": true, "lang": "en-US", "name": "us-gaap:LongtermDebtWeightedAverageInterestRate", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2452433 - Disclosure - Long-Term Debt - Other Long-Term Debt (Details)", "role": "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails", "shortName": "Long-Term Debt - Other Long-Term Debt (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "if4baa07276594d55b55f2da5cd77d23d_I20200630", "decimals": "4", "first": true, "lang": "en-US", "name": "us-gaap:LongtermDebtWeightedAverageInterestRate", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R74": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2455434 - Disclosure - Income Taxes (Details)", "role": "http://www.midwestone.com/role/IncomeTaxesDetails", "shortName": "Income Taxes (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R75": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2458435 - Disclosure - Earnings per Share (Details)", "role": "http://www.midwestone.com/role/EarningsperShareDetails", "shortName": "Earnings per Share (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "0", "lang": "en-US", "name": "us-gaap:WeightedAverageNumberOfSharesOutstandingBasic", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R76": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:Capital", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2461436 - Disclosure - Regulatory Capital Requirements and Restrictions on Subsidiary Cash (Details)", "role": "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails", "shortName": "Regulatory Capital Requirements and Restrictions on Subsidiary Cash (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:Capital", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R77": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:OtherCommitmentsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OtherCommitment", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2464437 - Disclosure - Commitments and Contingencies - Schedule of Commitments (Details)", "role": "http://www.midwestone.com/role/CommitmentsandContingenciesScheduleofCommitmentsDetails", "shortName": "Commitments and Contingencies - Schedule of Commitments (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:OtherCommitmentsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OtherCommitment", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R78": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-5", "first": true, "lang": "en-US", "name": "us-gaap:OffBalanceSheetCreditLossLiability", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2465438 - Disclosure - Commitments and Contingencies - Additional Information (Details)", "role": "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails", "shortName": "Commitments and Contingencies - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "ix:continuation", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "if99cb5bfba5a4686af0341ca24da89e6_D20200101-20200630", "decimals": "2", "lang": "en-US", "name": "us-gaap:ConcentrationRiskPercentage1", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R79": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AvailableForSaleSecuritiesDebtSecurities", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2468439 - Disclosure - Fair Value of Financial Instruments and Fair Value Measurements - Measured on a Recurring Basis (Details)", "role": "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails", "shortName": "Fair Value of Financial Instruments and Fair Value Measurements - Measured on a Recurring Basis (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i0596fe0d23a946b9ab9d857d0094b7d0_I20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:DerivativeAssets", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R8": { "firstAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1406401 - Statement - Consolidated Statements of Shareholders' Equity (Parenthetical)", "role": "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical", "shortName": "Consolidated Statements of Shareholders' Equity (Parenthetical)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R80": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OtherRealEstateAndForeclosedAssets", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2469440 - Disclosure - Fair Value of Financial Instruments and Fair Value Measurements - Measured on a Nonrecurring Basis (Details)", "role": "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails", "shortName": "Fair Value of Financial Instruments and Fair Value Measurements - Measured on a Nonrecurring Basis (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i8c80cd6a099941fc8498a4ec0fea6138_I20200630", "decimals": "-3", "lang": "en-US", "name": "mofg:ImpairedLoansNetofRelatedAllowanceFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R81": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AvailableForSaleSecuritiesDebtSecurities", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2470441 - Disclosure - Fair Value of Financial Instruments and Fair Value Measurements - Financial Instruments (Details)", "role": "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails", "shortName": "Fair Value of Financial Instruments and Fair Value Measurements - Financial Instruments (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FairValueByBalanceSheetGroupingTextBlock", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "id1f212fabe0d4c349525730a9f7e276f_I20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R82": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "mofg:ScheduleofLeaseAssetsandLiabilitiesTableTextBlock", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseRightOfUseAsset", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2473442 - Disclosure - Leases - Assets and Liabilities (Details)", "role": "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails", "shortName": "Leases - Assets and Liabilities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "mofg:ScheduleofLeaseAssetsandLiabilitiesTableTextBlock", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "lang": "en-US", "name": "us-gaap:FinanceLeaseRightOfUseAsset", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R83": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:LeaseCostTableTextBlock", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseCost", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2474443 - Disclosure - Leases - Lease Cost (Details)", "role": "http://www.midwestone.com/role/LeasesLeaseCostDetails", "shortName": "Leases - Lease Cost (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:LeaseCostTableTextBlock", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "ibf5be9692b924ac49b81152a37e86a2b_D20200401-20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseCost", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R84": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FinanceLeaseLiabilityMaturityTableTextBlock", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2475444 - Disclosure - Leases - Maturity Schedule (Details)", "role": "http://www.midwestone.com/role/LeasesMaturityScheduleDetails", "shortName": "Leases - Maturity Schedule (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FinanceLeaseLiabilityMaturityTableTextBlock", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i40ec15afe80e44ecb26316d41887bb9d_I20200630", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R85": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i24bc681e053846b0bef00ea27bcc00be_I20200630", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:DebtInstrumentInterestRateStatedPercentage", "reportCount": 1, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2477445 - Disclosure - Subsequent Events (Details)", "role": "http://www.midwestone.com/role/SubsequentEventsDetails", "shortName": "Subsequent Events (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i80750c0761e244b8ae7fa793e8bed45c_D20201028-20201028", "decimals": "-3", "lang": "en-US", "name": "mofg:IncreaseDecreaseInOperatingExpenses", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R9": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2101101 - Disclosure - Summary of Significant Accounting Policies", "role": "http://www.midwestone.com/role/SummaryofSignificantAccountingPolicies", "shortName": "Summary of Significant Accounting Policies", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i85d2758445a0429199a3c50a29045667_D20200101-20200630", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R9999": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i810c4dde62ca42f08229105f65653a48_I20190101", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseRightOfUseAsset", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "", "isDefault": "false", "longName": "Uncategorized Items - mofg-20200630.htm", "role": "http://xbrl.sec.gov/role/uncategorizedFacts", "shortName": "Uncategorized Items - mofg-20200630.htm", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "mofg-20200630.htm", "contextRef": "i810c4dde62ca42f08229105f65653a48_I20190101", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseRightOfUseAsset", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } } }, "segmentCount": 108, "tag": { "dei_AmendmentFlag": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.", "label": "Amendment Flag", "terseLabel": "Amendment Flag" } } }, "localname": "AmendmentFlag", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_CityAreaCode": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Area code of city", "label": "City Area Code", "terseLabel": "City Area Code" } } }, "localname": "CityAreaCode", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_CoverAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Cover page.", "label": "Cover [Abstract]" } } }, "localname": "CoverAbstract", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "xbrltype": "stringItemType" }, "dei_CurrentFiscalYearEndDate": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "End date of current fiscal year in the format --MM-DD.", "label": "Current Fiscal Year End Date", "terseLabel": "Current Fiscal Year End Date" } } }, "localname": "CurrentFiscalYearEndDate", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "gMonthDayItemType" }, "dei_DocumentFiscalPeriodFocus": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.", "label": "Document Fiscal Period Focus", "terseLabel": "Document Fiscal Period Focus" } } }, "localname": "DocumentFiscalPeriodFocus", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "fiscalPeriodItemType" }, "dei_DocumentFiscalYearFocus": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.", "label": "Document Fiscal Year Focus", "terseLabel": "Document Fiscal Year Focus" } } }, "localname": "DocumentFiscalYearFocus", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "gYearItemType" }, "dei_DocumentPeriodEndDate": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.", "label": "Document Period End Date", "terseLabel": "Document Period End Date" } } }, "localname": "DocumentPeriodEndDate", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "dateItemType" }, "dei_DocumentQuarterlyReport": { "auth_ref": [ "r672" ], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true only for a form used as an quarterly report.", "label": "Document Quarterly Report", "terseLabel": "Document Quarterly Report" } } }, "localname": "DocumentQuarterlyReport", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_DocumentTransitionReport": { "auth_ref": [ "r673" ], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true only for a form used as a transition report.", "label": "Document Transition Report", "terseLabel": "Document Transition Report" } } }, "localname": "DocumentTransitionReport", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_DocumentType": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.", "label": "Document Type", "terseLabel": "Document Type" } } }, "localname": "DocumentType", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "submissionTypeItemType" }, "dei_EntityAddressAddressLine1": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Address Line 1 such as Attn, Building Name, Street Name", "label": "Entity Address, Address Line One", "terseLabel": "Entity Address, Address Line One" } } }, "localname": "EntityAddressAddressLine1", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressCityOrTown": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Name of the City or Town", "label": "Entity Address, City or Town", "terseLabel": "Entity Address, City or Town" } } }, "localname": "EntityAddressCityOrTown", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressPostalZipCode": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Code for the postal or zip code", "label": "Entity Address, Postal Zip Code", "terseLabel": "Entity Address, Postal Zip Code" } } }, "localname": "EntityAddressPostalZipCode", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressStateOrProvince": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Name of the state or province.", "label": "Entity Address, State or Province", "terseLabel": "Entity Address, State or Province" } } }, "localname": "EntityAddressStateOrProvince", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "stateOrProvinceItemType" }, "dei_EntityCentralIndexKey": { "auth_ref": [ "r674" ], "lang": { "en-US": { "role": { "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.", "label": "Entity Central Index Key", "terseLabel": "Entity Central Index Key" } } }, "localname": "EntityCentralIndexKey", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "centralIndexKeyItemType" }, "dei_EntityCommonStockSharesOutstanding": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.", "label": "Entity Common Stock, Shares Outstanding", "terseLabel": "Entity Common Stock, Shares Outstanding" } } }, "localname": "EntityCommonStockSharesOutstanding", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "sharesItemType" }, "dei_EntityCurrentReportingStatus": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.", "label": "Entity Current Reporting Status", "terseLabel": "Entity Current Reporting Status" } } }, "localname": "EntityCurrentReportingStatus", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "yesNoItemType" }, "dei_EntityDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains.", "label": "Entity [Domain]", "terseLabel": "Entity [Domain]" } } }, "localname": "EntityDomain", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "domainItemType" }, "dei_EntityEmergingGrowthCompany": { "auth_ref": [ "r674" ], "lang": { "en-US": { "role": { "documentation": "Indicate if registrant meets the emerging growth company criteria.", "label": "Entity Emerging Growth Company", "terseLabel": "Entity Emerging Growth Company" } } }, "localname": "EntityEmergingGrowthCompany", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_EntityFileNumber": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.", "label": "Entity File Number", "terseLabel": "Entity File Number" } } }, "localname": "EntityFileNumber", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "fileNumberItemType" }, "dei_EntityFilerCategory": { "auth_ref": [ "r674" ], "lang": { "en-US": { "role": { "documentation": "Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.", "label": "Entity Filer Category", "terseLabel": "Entity Filer Category" } } }, "localname": "EntityFilerCategory", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "filerCategoryItemType" }, "dei_EntityIncorporationStateCountryCode": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Two-character EDGAR code representing the state or country of incorporation.", "label": "Entity Incorporation, State or Country Code", "terseLabel": "Entity Incorporation, State or Country Code" } } }, "localname": "EntityIncorporationStateCountryCode", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "edgarStateCountryItemType" }, "dei_EntityInteractiveDataCurrent": { "auth_ref": [ "r675" ], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).", "label": "Entity Interactive Data Current", "terseLabel": "Entity Interactive Data Current" } } }, "localname": "EntityInteractiveDataCurrent", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "yesNoItemType" }, "dei_EntityRegistrantName": { "auth_ref": [ "r674" ], "lang": { "en-US": { "role": { "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.", "label": "Entity Registrant Name", "terseLabel": "Entity Registrant Name" } } }, "localname": "EntityRegistrantName", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityShellCompany": { "auth_ref": [ "r674" ], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.", "label": "Entity Shell Company", "terseLabel": "Entity Shell Company" } } }, "localname": "EntityShellCompany", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_EntitySmallBusiness": { "auth_ref": [ "r674" ], "lang": { "en-US": { "role": { "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).", "label": "Entity Small Business", "terseLabel": "Entity Small Business" } } }, "localname": "EntitySmallBusiness", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_EntityTaxIdentificationNumber": { "auth_ref": [ "r674" ], "lang": { "en-US": { "role": { "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.", "label": "Entity Tax Identification Number", "terseLabel": "Entity Tax Identification Number" } } }, "localname": "EntityTaxIdentificationNumber", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "employerIdItemType" }, "dei_LegalEntityAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The set of legal entities associated with a report.", "label": "Legal Entity [Axis]", "terseLabel": "Legal Entity [Axis]" } } }, "localname": "LegalEntityAxis", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "stringItemType" }, "dei_LocalPhoneNumber": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Local phone number for entity.", "label": "Local Phone Number", "terseLabel": "Local Phone Number" } } }, "localname": "LocalPhoneNumber", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_Security12bTitle": { "auth_ref": [ "r670" ], "lang": { "en-US": { "role": { "documentation": "Title of a 12(b) registered security.", "label": "Title of 12(b) Security", "terseLabel": "Title of 12(b) Security" } } }, "localname": "Security12bTitle", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "securityTitleItemType" }, "dei_SecurityExchangeName": { "auth_ref": [ "r671" ], "lang": { "en-US": { "role": { "documentation": "Name of the Exchange on which a security is registered.", "label": "Security Exchange Name", "terseLabel": "Security Exchange Name" } } }, "localname": "SecurityExchangeName", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "edgarExchangeCodeItemType" }, "dei_TradingSymbol": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Trading symbol of an instrument as listed on an exchange.", "label": "Trading Symbol", "terseLabel": "Trading Symbol" } } }, "localname": "TradingSymbol", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.midwestone.com/role/CoverPage" ], "xbrltype": "tradingSymbolItemType" }, "mofg_A575FixedToFloatingSubordinatedNotesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "5.75% Fixed To Floating Subordinated Notes", "label": "5.75% Fixed To Floating Subordinated Notes [Member]", "terseLabel": "5.75% Fixed to floating subordinated notes" } } }, "localname": "A575FixedToFloatingSubordinatedNotesMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "http://www.midwestone.com/role/SubsequentEventsDetails", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "mofg_ATBancorpMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "ATBancorp [Member]", "label": "ATBancorp [Member]", "terseLabel": "ATBancorp" } } }, "localname": "ATBancorpMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "mofg_ATBancorpStatutoryTrustIIMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "ATBancorp Statutory Trust II [Member]", "label": "ATBancorp Statutory Trust II [Member]", "terseLabel": "ATBancorp Statutory Trust II" } } }, "localname": "ATBancorpStatutoryTrustIIMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails" ], "xbrltype": "domainItemType" }, "mofg_ATBancorpStatutoryTrustIMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "ATBancorp Statutory Trust I [Member]", "label": "ATBancorp Statutory Trust I [Member]", "terseLabel": "ATBancorp Statutory Trust I" } } }, "localname": "ATBancorpStatutoryTrustIMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails" ], "xbrltype": "domainItemType" }, "mofg_AdjustmentsToAPICAcquisitionFairValueFinalization": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Adjustments To APIC, Acquisition Fair Value Finalization", "label": "Adjustments To APIC, Acquisition Fair Value Finalization", "terseLabel": "Acquisition fair value finalization" } } }, "localname": "AdjustmentsToAPICAcquisitionFairValueFinalization", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "monetaryItemType" }, "mofg_AgriculturalPortfolioSegmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Portfolio segment of the company's total financing receivables related to agricultural receivables.", "label": "Agricultural Portfolio Segment [Member]", "terseLabel": "Agricultural" } } }, "localname": "AgriculturalPortfolioSegmentMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "domainItemType" }, "mofg_AgriculturalRelatedLoanFinancingReceivableMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Includes all agriculturally related loans, including those related to farmland.", "label": "Agricultural Related Loan Financing Receivable [Member]", "terseLabel": "Agricultural Related Loan Financing Receivable" } } }, "localname": "AgriculturalRelatedLoanFinancingReceivableMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "mofg_AllowanceforLoanLossesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Allowance for Loan Losses [Abstract]", "label": "Allowance for Loan Losses [Abstract]", "terseLabel": "Allowance for credit losses:" } } }, "localname": "AllowanceforLoanLossesAbstract", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails" ], "xbrltype": "stringItemType" }, "mofg_BarronInvestmentCapitalTrustIMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Barron Investment Capital Trust I [Member]", "label": "Barron Investment Capital Trust I [Member]", "terseLabel": "Barron Investment Capital Trust I" } } }, "localname": "BarronInvestmentCapitalTrustIMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails" ], "xbrltype": "domainItemType" }, "mofg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansReceivableBankOwnedLifeInsurance": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Loans Receivable Bank Owned Life Insurance", "label": "Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Loans Receivable Bank Owned Life Insurance", "terseLabel": "Bank-owned life insurance" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansReceivableBankOwnedLifeInsurance", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "mofg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansReceivableFHLBBorrowings": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Loans Receivable FHLB Borrowings", "label": "Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Loans Receivable FHLB Borrowings", "terseLabel": "FHLB borrowings" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansReceivableFHLBBorrowings", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "mofg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNonCurrentLiabilitiesJuniorSubordinatedNotesIssuedToCapitalTrusts": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Non Current Liabilities Junior Subordinated Notes Issued to Capital Trusts", "label": "Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Non Current Liabilities Junior Subordinated Notes Issued to Capital Trusts", "terseLabel": "Junior subordinated notes issued to capital trusts" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNonCurrentLiabilitiesJuniorSubordinatedNotesIssuedToCapitalTrusts", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "mofg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSubordinatedNotesPayable": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Subordinated Notes Payable", "label": "Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Subordinated Notes Payable", "terseLabel": "Subordinated debentures" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSubordinatedNotesPayable", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "mofg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedAccruedLiabilitiesAndOtherLiabilities": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Liabilities And Other Liabilities", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Liabilities And Other Liabilities", "terseLabel": "Other liabilities" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedAccruedLiabilitiesAndOtherLiabilities", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "mofg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentLiabilitiesDeposits": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deposits", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deposits", "terseLabel": "Deposits" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentLiabilitiesDeposits", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "mofg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentLiabilitiesShortTermDebt": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Short-Term Debt", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Short-Term Debt", "terseLabel": "Short-term borrowings" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentLiabilitiesShortTermDebt", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "mofg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLoansReceivable": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Receivable", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Receivable", "terseLabel": "Loans" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLoansReceivable", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "mofg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherRealEstateOwned": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Real Estate Owned", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Real Estate Owned", "terseLabel": "Foreclosed assets" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherRealEstateOwned", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "mofg_CBICapitalTrustIIMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "CBI Capital Trust II [Member]", "label": "CBI Capital Trust II [Member]", "terseLabel": "Central Bancshares Capital Trust II" } } }, "localname": "CBICapitalTrustIIMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails" ], "xbrltype": "domainItemType" }, "mofg_COVID19Member": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "COVID-19", "label": "COVID-19 [Member]", "terseLabel": "COVID-19" } } }, "localname": "COVID19Member", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "domainItemType" }, "mofg_Cardrevenue": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 3.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Revenue from customer for ATM, debit, and credit card issuance and usage, including interchange fees.", "label": "Card revenue", "terseLabel": "Card revenue" } } }, "localname": "Cardrevenue", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "mofg_ChangeinAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Change in: [Abstract]", "label": "Change in: [Abstract]", "terseLabel": "Change in:" } } }, "localname": "ChangeinAbstract", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "mofg_CommercialRealEstateOtherMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Class of financing receivables related to commercial real estate financing receivables other than those related to commercial real estate construction and development, farmland, and multifamily.", "label": "Commercial Real Estate Other [Member]", "terseLabel": "Commercial real estate-other" } } }, "localname": "CommercialRealEstateOtherMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "domainItemType" }, "mofg_CommitmentstoSellLoansMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Commitments to sell loans.", "label": "Commitments to Sell Loans [Member]", "terseLabel": "Commitments to sell loans" } } }, "localname": "CommitmentstoSellLoansMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesScheduleofCommitmentsDetails" ], "xbrltype": "domainItemType" }, "mofg_CommonEquityTierOneCapitalRequiredForCapitalAdequacyToRiskWeightedAssets": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Ratio of Common equity Tier 1 required for capital adequacy purposes as defined in the regulations.", "label": "Common Equity Tier One Capital Required For Capital Adequacy To Risk Weighted Assets", "terseLabel": "Common equity tier one capital required for capital adequacy to risk weighted assets" } } }, "localname": "CommonEquityTierOneCapitalRequiredForCapitalAdequacyToRiskWeightedAssets", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "percentItemType" }, "mofg_CommonEquityTierOneCapitalToRiskWeightedAssets": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Common equity Tier 1 actual ratio as defined in the regulations.", "label": "Common Equity Tier One Capital To Risk Weighted Assets", "terseLabel": "Common equity tier one capital to risk weighted assets" } } }, "localname": "CommonEquityTierOneCapitalToRiskWeightedAssets", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "percentItemType" }, "mofg_CommonEquityTierOneRiskBasedCapitalRequiredtobeWellCapitalized": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The amount of Common equity Tier 1 required to be categorized as well capitalized under the regulatory framework for prompt corrective action.", "label": "Common Equity Tier One Risk Based Capital Required to be Well Capitalized", "terseLabel": "Common equity tier one risk based capital required to be well capitalized" } } }, "localname": "CommonEquityTierOneRiskBasedCapitalRequiredtobeWellCapitalized", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "monetaryItemType" }, "mofg_CommonEquityTierOneRiskBasedCapitalRequiredtobeWellCapitalizedtoRiskWeightedAssets": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The ratio Tier 1 Leverage Capital required to be categorized as well capitalized as defined in the regulatory framework for prompt corrective action.", "label": "Common Equity Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets", "terseLabel": "Common equity tier one risk based capital required to be well capitalized to risk weighted assets" } } }, "localname": "CommonEquityTierOneRiskBasedCapitalRequiredtobeWellCapitalizedtoRiskWeightedAssets", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "percentItemType" }, "mofg_ConstructionAndDevelopmentLoanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Class of financing receivables related to commercial construction and real estate development loan financing receivables.", "label": "Construction And Development Loan [Member]", "terseLabel": "Construction & development" } } }, "localname": "ConstructionAndDevelopmentLoanMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "domainItemType" }, "mofg_DebenturesDecreaseToTier2TreatmentPeriodOfRecognition": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Debentures, Decrease To Tier 2 Treatment, Period Of Recognition", "label": "Debentures, Decrease To Tier 2 Treatment, Period Of Recognition", "terseLabel": "Decrease to Tier 2 treatment, period of recognition" } } }, "localname": "DebenturesDecreaseToTier2TreatmentPeriodOfRecognition", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails" ], "xbrltype": "durationItemType" }, "mofg_DepositsGovernmentalEntities": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Deposits Governmental Entities", "label": "Deposits Governmental Entities", "terseLabel": "Deposits of government entities" } } }, "localname": "DepositsGovernmentalEntities", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/DepositsDetails" ], "xbrltype": "monetaryItemType" }, "mofg_DerivativeLiabilityAssetFairValueAmountOffsetAgainstCollateral": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Derivative (Liability) Asset, Fair Value, Amount Offset Against Collateral", "label": "Derivative (Liability) Asset, Fair Value, Amount Offset Against Collateral", "totalLabel": "Net Assets (Liabilities)" } } }, "localname": "DerivativeLiabilityAssetFairValueAmountOffsetAgainstCollateral", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "mofg_DomesticNonTimeDepositBrokered": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest-bearing domestic third-party deposits, other than time deposits, placed by or through the assistance of a deposit broker, also known as brokered deposit liabilities.", "label": "Domestic Non-Time Deposit, Brokered", "terseLabel": "Domestic non-time deposit, brokered" } } }, "localname": "DomesticNonTimeDepositBrokered", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/DepositsDetails" ], "xbrltype": "monetaryItemType" }, "mofg_DomesticTimeDepositBrokered": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest-bearing domestic third-party time deposits placed by or through the assistance of a deposit broker, also known as brokered deposit liabilities.", "label": "Domestic Time Deposit, Brokered", "terseLabel": "Domestic time deposit, brokered" } } }, "localname": "DomesticTimeDepositBrokered", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/DepositsDetails" ], "xbrltype": "monetaryItemType" }, "mofg_EffectiveIncomeTaxRateReconciliationGeneralBusinessCreditsAmount": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": 6.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, General Business Credits, Amount", "label": "Effective Income Tax Rate Reconciliation, General Business Credits, Amount", "negatedTerseLabel": "General business credits" } } }, "localname": "EffectiveIncomeTaxRateReconciliationGeneralBusinessCreditsAmount", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "mofg_EffectiveIncomeTaxRateReconciliationGeneralBusinessCreditsPercent": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": 6.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": -1.0 } }, "lang": { "en-US": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, General Business Credits, Percent", "label": "Effective Income Tax Rate Reconciliation, General Business Credits, Percent", "negatedTerseLabel": "General business credits" } } }, "localname": "EffectiveIncomeTaxRateReconciliationGeneralBusinessCreditsPercent", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "mofg_EffectiveIncomeTaxRateReconciliationTaxExemptLifeInsuranceIncomeAmount": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": 3.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to life insurance income that is exempt from income taxes under enacted tax laws.", "label": "Effective Income Tax Rate Reconciliation, Tax Exempt Life Insurance Income, Amount", "negatedTerseLabel": "Bank-owned life insurance" } } }, "localname": "EffectiveIncomeTaxRateReconciliationTaxExemptLifeInsuranceIncomeAmount", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "mofg_EffectiveIncomeTaxRateReconciliationTaxExemptLifeInsuranceIncomePercent": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": 3.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": -1.0 } }, "lang": { "en-US": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Tax Exempt Life Insurance Income, Percent", "label": "Effective Income Tax Rate Reconciliation, Tax Exempt Life Insurance Income, Percent", "negatedTerseLabel": "Bank-owned life insurance" } } }, "localname": "EffectiveIncomeTaxRateReconciliationTaxExemptLifeInsuranceIncomePercent", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "mofg_FarmlandLoanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Class of financing receivables related to farmland real estate loan financing receivables.", "label": "Farmland Loan [Member]", "terseLabel": "Farmland" } } }, "localname": "FarmlandLoanMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "domainItemType" }, "mofg_FarmlandPortfolioSegmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Farmland Portfolio Segment", "label": "Farmland Portfolio Segment [Member]", "terseLabel": "Farmland" } } }, "localname": "FarmlandPortfolioSegmentMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "domainItemType" }, "mofg_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumBorrowingCapacityAsPercentageOfTotalAssets": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Represents the maximum borrowing capacity from the Federal Home Loan Bank system, expressed as a percentage of the entity's total assets, provided the entity is able to pledge an adequate amount of qualified assets to secure the borrowings.", "label": "Federal Home Loan, Bank Advances General Debt Obligations, Disclosures Maximum Borrowing Capacity as Percentage of Total Assets", "terseLabel": "Federal home loan, bank advances general debt obligations, disclosures maximum borrowing capacity as percentage of total assets" } } }, "localname": "FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumBorrowingCapacityAsPercentageOfTotalAssets", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails" ], "xbrltype": "percentItemType" }, "mofg_FinancingReceivableAfterAllowanceForCreditLossAmountOfReceivablesDeferred": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Financing Receivable, After Allowance For Credit Loss, Amount Of Receivables Deferred", "label": "Financing Receivable, After Allowance For Credit Loss, Amount Of Receivables Deferred", "terseLabel": "Amount of deferrals" } } }, "localname": "FinancingReceivableAfterAllowanceForCreditLossAmountOfReceivablesDeferred", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "monetaryItemType" }, "mofg_FinancingReceivableCollateralDependLoansTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Financing Receivable, Collateral Depend Loans", "label": "Financing Receivable, Collateral Depend Loans [Table Text Block]", "terseLabel": "Financing Receivable, Collateral Depend Loans" } } }, "localname": "FinancingReceivableCollateralDependLoansTableTextBlock", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTables" ], "xbrltype": "textBlockItemType" }, "mofg_FinancingReceivablePurchasedWithCreditDeteriorationTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Financing Receivable, Purchased With Credit Deterioration", "label": "Financing Receivable, Purchased With Credit Deterioration [Table Text Block]", "terseLabel": "Schedule of PCD Loans" } } }, "localname": "FinancingReceivablePurchasedWithCreditDeteriorationTableTextBlock", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTables" ], "xbrltype": "textBlockItemType" }, "mofg_FirstLienLoanFinancingReceivableMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Class of financing receivables related to residential real estate loans secured by a first lien financing receivables.", "label": "First Lien Loan, Financing Receivable [Member]", "terseLabel": "One- to four- family first liens" } } }, "localname": "FirstLienLoanFinancingReceivableMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "domainItemType" }, "mofg_HedgedItemsInFairValueHedgingRelationshipTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Hedged Items In Fair Value Hedging Relationship [Table Text Block]", "label": "Hedged Items In Fair Value Hedging Relationship [Table Text Block]", "terseLabel": "Hedged Items In Fair Value Hedging Relationship" } } }, "localname": "HedgedItemsInFairValueHedgingRelationshipTableTextBlock", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingTables" ], "xbrltype": "textBlockItemType" }, "mofg_ImpairedLoansNetofRelatedAllowanceFairValueDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Impaired Loans, Net of Related Allowance, Fair Value Disclosure", "label": "Impaired Loans, Net of Related Allowance, Fair Value Disclosure", "terseLabel": "Collateral dependent impaired loans" } } }, "localname": "ImpairedLoansNetofRelatedAllowanceFairValueDisclosure", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails" ], "xbrltype": "monetaryItemType" }, "mofg_IncreaseDecreaseInOperatingExpenses": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Increase (Decrease) In Operating Expenses", "label": "Increase (Decrease) In Operating Expenses", "negatedTerseLabel": "Reduction in operating expenses" } } }, "localname": "IncreaseDecreaseInOperatingExpenses", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "mofg_InvestmentSecuritiesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Total investments when it serves as a benchmark in a concentration of risk calculation.", "label": "Investment Securities [Member]", "terseLabel": "Investment Securities" } } }, "localname": "InvestmentSecuritiesMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "mofg_InvestmentServicesandTrustActivitiesIncome": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 1.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Income from services rendered by trust departments and brokerage operations (includes sales of annuities and supplemental contracts), or by any consolidated subsidiaries acting in a fiduciary capacity, including fees earned for (1) acting as an agent for fiduciary placement and loans; and, (2) custody or investment advisory services when such fees are not separately billed to the customer and management fees from separate accounts, deferred annuities, and universal life products.", "label": "Investment Services and Trust Activities Income", "terseLabel": "Investment services and trust activities" } } }, "localname": "InvestmentServicesandTrustActivitiesIncome", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "mofg_JuniorLienLoanFinancingReceivableMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Class of financing receivables related to residential real estate loan secured by junior lien financing receivables.", "label": "Junior Lien Loan, Financing Receivable [Member]", "terseLabel": "One- to four- family junior liens" } } }, "localname": "JuniorLienLoanFinancingReceivableMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "domainItemType" }, "mofg_JuniorSubordinatedDebentureOwedtoUnconsolidatedSubsidiaryTrustFairvalueDisclosure": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value of junior subordinated notes issued to an unconsolidated subsidiary trust.", "label": "Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Fair value Disclosure", "terseLabel": "Junior subordinated notes issued to capital trusts" } } }, "localname": "JuniorSubordinatedDebentureOwedtoUnconsolidatedSubsidiaryTrustFairvalueDisclosure", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "mofg_LeaseLiabilitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Lease Liabilities [Abstract]", "label": "Lease Liabilities [Abstract]", "terseLabel": "Lease Liabilities" } } }, "localname": "LeaseLiabilitiesAbstract", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "mofg_LeaseLiability": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Lease Liability", "label": "Lease Liability", "totalLabel": "Total lease liabilities" } } }, "localname": "LeaseLiability", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "mofg_LeaseRightofUseAsset": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Lease Right-of-Use Asset", "label": "Lease Right of Use Asset", "totalLabel": "Total right-of-use assets" } } }, "localname": "LeaseRightofUseAsset", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "mofg_LeaseRightofUseAssetsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Lease Right of Use Assets [Abstract]", "label": "Lease Right of Use Assets [Abstract]", "terseLabel": "Lease Right-of-Use Assets" } } }, "localname": "LeaseRightofUseAssetsAbstract", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "mofg_LoanRevenue": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 4.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The noninterest income derived from mortgage banking and SBA activities (fees and commissions), including fees earned from servicing third-party assets, and the related increase or decrease in the value of capitalized mortgage servicing rights.", "label": "Loan Revenue", "terseLabel": "Loan revenue" } } }, "localname": "LoanRevenue", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "mofg_LoansConcentrationMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Total loans when it serves as a benchmark in a concentration of risk calculation.", "label": "Loans Concentration [Member]", "terseLabel": "Loans Concentration" } } }, "localname": "LoansConcentrationMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "mofg_MidWestOneBankMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "MidWestOne Bank [Member]", "label": "MidWestOne Bank [Member]", "terseLabel": "MidWestOne Bank" } } }, "localname": "MidWestOneBankMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "domainItemType" }, "mofg_MidWestOneInsuranceServicesIncMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "MidWestOne Insurance Services Inc", "label": "MidWestOne Insurance Services Inc [Member]", "terseLabel": "MidWestOne Insurance Services Inc" } } }, "localname": "MidWestOneInsuranceServicesIncMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "mofg_MidWestOneStatutoryTrustIIMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "MidWestOne Statutory Trust II [Member]", "label": "MidWestOne Statutory Trust II [Member]", "terseLabel": "MidWestOne Statutory Trust II" } } }, "localname": "MidWestOneStatutoryTrustIIMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails" ], "xbrltype": "domainItemType" }, "mofg_MultifamilyRealEstateLoanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Class of financing receivables related to multifamily real estate loan financing receivables.", "label": "Multifamily Real Estate Loan [Member]", "terseLabel": "Multifamily" } } }, "localname": "MultifamilyRealEstateLoanMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "domainItemType" }, "mofg_NetGainonSaleofForeclosedAssetsNet": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 12.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, excluding write-downs of other real estate owned after acquisition or physical possession.", "label": "Net Gain on Sale of Foreclosed Assets, Net", "negatedTerseLabel": "Net (gain) loss on sale of foreclosed assets, net" } } }, "localname": "NetGainonSaleofForeclosedAssetsNet", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "mofg_OffsettingDerivativeAssetsAndLiabilitiesTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of derivatives that are subject to offsetting, including master netting arrangements.", "label": "Offsetting Derivative Assets And Liabilities [Table Text Block]", "terseLabel": "Offsetting Derivative Assets And Liabilities" } } }, "localname": "OffsettingDerivativeAssetsAndLiabilitiesTableTextBlock", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingTables" ], "xbrltype": "textBlockItemType" }, "mofg_OtherCollateralNotSeparatelyDisclosedMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Other Collateral Not Separately Disclosed", "label": "Other Collateral Not Separately Disclosed [Member]", "terseLabel": "Other" } } }, "localname": "OtherCollateralNotSeparatelyDisclosedMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "domainItemType" }, "mofg_OtherMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Other", "label": "Other [Member]", "terseLabel": "Other" } } }, "localname": "OtherMember", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "domainItemType" }, "mofg_PercentageOfDebenturesDecreaseToTier2TreatmentPerYear": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Percentage Of Debentures, Decrease To Tier 2 Treatment, Per Year", "label": "Percentage Of Debentures, Decrease To Tier 2 Treatment, Per Year", "terseLabel": "Percentage of debentures, decrease to Tier 2 treatment, per year" } } }, "localname": "PercentageOfDebenturesDecreaseToTier2TreatmentPerYear", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails" ], "xbrltype": "percentItemType" }, "mofg_PercentageOfDebenturesMeasuredAsTier2": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Percentage Of Debentures, Measured As Tier 2", "label": "Percentage Of Debentures, Measured As Tier 2", "terseLabel": "Percentage of debentures, measured as Tier 2" } } }, "localname": "PercentageOfDebenturesMeasuredAsTier2", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails" ], "xbrltype": "percentItemType" }, "mofg_ProceedsFromSaleAndCallsOfDebtSecuritiesAvailableForSale": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 9.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Proceeds From Sale And Calls Of Debt Securities, Available-For-Sale", "label": "Proceeds From Sale And Calls Of Debt Securities, Available-For-Sale", "terseLabel": "Proceeds from sales of debt securities available for sale" } } }, "localname": "ProceedsFromSaleAndCallsOfDebtSecuritiesAvailableForSale", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "mofg_RisksAndUncertaintiesPolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Risks And Uncertainties Policy", "label": "Risks And Uncertainties Policy [Policy Text Block]", "terseLabel": "Risks and Uncertainties" } } }, "localname": "RisksAndUncertaintiesPolicyPolicyTextBlock", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "mofg_ScheduleofLeaseAssetsandLiabilitiesTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Schedule of Lease Assets and Liabilities [Table Text Block]", "label": "Schedule of Lease Assets and Liabilities [Table Text Block]", "terseLabel": "Schedule of Lease Assets and Liabilities" } } }, "localname": "ScheduleofLeaseAssetsandLiabilitiesTableTextBlock", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "mofg_ServiceChargesandFees": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 2.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Service charges and fees from both deposit account servicing and other miscellaneous activities.", "label": "Service Charges and Fees", "terseLabel": "Service charges and fees" } } }, "localname": "ServiceChargesandFees", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "mofg_TimeDeposits250000orMore": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/DepositsDetails": { "order": 6.0, "parentTag": "us-gaap_Deposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The aggregate amount of domestic and foreign time deposit liabilities (including certificates of deposits, individual retirement accounts and open accounts) in denominations of $250,000 or more.", "label": "Time Deposits, $250,000 or More", "terseLabel": "Certificates of deposit of $250,000 or more" } } }, "localname": "TimeDeposits250000orMore", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/DepositsDetails" ], "xbrltype": "monetaryItemType" }, "mofg_TimeDepositsLessThan250000": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/DepositsDetails": { "order": 5.0, "parentTag": "us-gaap_Deposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of time deposit liabilities, including certificates of deposit, in denominations of less than $250,000.", "label": "Time Deposits, Less Than $250,000", "terseLabel": "Certificates of deposit under $250,000" } } }, "localname": "TimeDepositsLessThan250000", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/DepositsDetails" ], "xbrltype": "monetaryItemType" }, "mofg_UnsecuredNotePayableEnteredApril2015Member": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Unsecured Note Payable, Entered April 2015", "label": "Unsecured Note Payable, Entered April 2015 [Member]", "terseLabel": "Unsecured Note Payable, Entered April 2015" } } }, "localname": "UnsecuredNotePayableEnteredApril2015Member", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails" ], "xbrltype": "domainItemType" }, "mofg_UnsecuredNotePayableEnteredApril2019Member": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Unsecured Note Payable, Entered April 2019", "label": "Unsecured Note Payable, Entered April 2019 [Member]", "terseLabel": "Unsecured Note Payable, Entered April 2019" } } }, "localname": "UnsecuredNotePayableEnteredApril2019Member", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails" ], "xbrltype": "domainItemType" }, "mofg_WeightedaverageDiscountRateAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Weighted-average Discount Rate [Abstract]", "label": "Weighted-average Discount Rate [Abstract]", "terseLabel": "Weighted-average discount rate" } } }, "localname": "WeightedaverageDiscountRateAbstract", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "mofg_WeightedaverageRemainingLeaseTermAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Weighted-average Remaining Lease Term [Abstract]", "label": "Weighted-average Remaining Lease Term [Abstract]", "terseLabel": "Weighted-average remaining lease term" } } }, "localname": "WeightedaverageRemainingLeaseTermAbstract", "nsuri": "http://www.midwestone.com/20200630", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "srt_CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember": { "auth_ref": [ "r104", "r115", "r230", "r360", "r361", "r362", "r377", "r378" ], "lang": { "en-US": { "role": { "label": "Cumulative Effect, Period of Adoption, Adjusted Balance [Member]", "terseLabel": "As Reported Under ASC 326" } } }, "localname": "CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails" ], "xbrltype": "domainItemType" }, "srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember": { "auth_ref": [ "r104", "r115", "r230", "r360", "r361", "r362", "r377", "r378" ], "lang": { "en-US": { "role": { "label": "Cumulative Effect, Period of Adoption, Adjustment [Member]", "terseLabel": "Impact of ASC 326 Adoption", "verboseLabel": "Cumulative effect adjustment" } } }, "localname": "CumulativeEffectPeriodOfAdoptionAdjustmentMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity", "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "domainItemType" }, "srt_CumulativeEffectPeriodOfAdoptionAxis": { "auth_ref": [ "r104", "r115", "r230", "r360", "r361", "r362", "r377", "r378" ], "lang": { "en-US": { "role": { "label": "Cumulative Effect, Period of Adoption [Axis]", "terseLabel": "Cumulative Effect, Period Of Adoption [Axis]" } } }, "localname": "CumulativeEffectPeriodOfAdoptionAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity", "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "stringItemType" }, "srt_CumulativeEffectPeriodOfAdoptionDomain": { "auth_ref": [ "r104", "r115", "r230", "r360", "r361", "r362", "r377", "r378" ], "lang": { "en-US": { "role": { "label": "Cumulative Effect, Period of Adoption [Domain]", "terseLabel": "Cumulative Effect, Period Of Adoption [Domain]" } } }, "localname": "CumulativeEffectPeriodOfAdoptionDomain", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity", "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "domainItemType" }, "srt_MaximumMember": { "auth_ref": [ "r350", "r353", "r523", "r524", "r525", "r526", "r527", "r528", "r552", "r647", "r648" ], "lang": { "en-US": { "role": { "label": "Maximum [Member]", "terseLabel": "Maximum" } } }, "localname": "MaximumMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails" ], "xbrltype": "domainItemType" }, "srt_MinimumMember": { "auth_ref": [ "r350", "r353", "r523", "r524", "r525", "r526", "r527", "r528", "r552", "r647", "r648" ], "lang": { "en-US": { "role": { "label": "Minimum [Member]", "terseLabel": "Minimum" } } }, "localname": "MinimumMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails" ], "xbrltype": "domainItemType" }, "srt_RangeAxis": { "auth_ref": [ "r340", "r350", "r353", "r523", "r524", "r525", "r526", "r527", "r528", "r552", "r647", "r648" ], "lang": { "en-US": { "role": { "label": "Statistical Measurement [Axis]", "terseLabel": "Statistical Measurement [Axis]" } } }, "localname": "RangeAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails" ], "xbrltype": "stringItemType" }, "srt_RangeMember": { "auth_ref": [ "r340", "r350", "r353", "r523", "r524", "r525", "r526", "r527", "r528", "r552", "r647", "r648" ], "lang": { "en-US": { "role": { "label": "Statistical Measurement [Domain]", "terseLabel": "Statistical Measurement [Domain]" } } }, "localname": "RangeMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails" ], "xbrltype": "domainItemType" }, "srt_RegulatoryCapitalRequirementsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]", "terseLabel": "Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]" } } }, "localname": "RegulatoryCapitalRequirementsAbstract", "nsuri": "http://fasb.org/srt/2020-01-31", "xbrltype": "stringItemType" }, "srt_ScenarioForecastMember": { "auth_ref": [ "r351" ], "lang": { "en-US": { "role": { "label": "Forecast [Member]", "terseLabel": "Forecast" } } }, "localname": "ScenarioForecastMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "srt_ScenarioUnspecifiedDomain": { "auth_ref": [ "r351" ], "lang": { "en-US": { "role": { "label": "Scenario [Domain]", "terseLabel": "Scenario [Domain]" } } }, "localname": "ScenarioUnspecifiedDomain", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "srt_StatementScenarioAxis": { "auth_ref": [ "r315", "r351", "r515" ], "lang": { "en-US": { "role": { "label": "Scenario [Axis]", "terseLabel": "Scenario [Axis]" } } }, "localname": "StatementScenarioAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "srt_WeightedAverageMember": { "auth_ref": [ "r523", "r525", "r528" ], "lang": { "en-US": { "role": { "label": "Weighted Average [Member]", "terseLabel": "Weighted Average" } } }, "localname": "WeightedAverageMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails" ], "xbrltype": "domainItemType" }, "stpr_IA": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "IOWA", "terseLabel": "IOWA" } } }, "localname": "IA", "nsuri": "http://xbrl.sec.gov/stpr/2018-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "stpr_MN": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "MINNESOTA", "terseLabel": "MINNESOTA" } } }, "localname": "MN", "nsuri": "http://xbrl.sec.gov/stpr/2018-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccountingStandardsUpdate201602Member": { "auth_ref": [ "r493" ], "lang": { "en-US": { "role": { "documentation": "Accounting Standards Update 2016-02 Leases (Topic 842).", "label": "Accounting Standards Update 2016-02 [Member]", "terseLabel": "Accounting Standards Update 2016-02" } } }, "localname": "AccountingStandardsUpdate201602Member", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "domainItemType" }, "us-gaap_AccountingStandardsUpdateExtensibleList": { "auth_ref": [ "r107", "r108", "r109", "r111", "r227", "r228", "r229", "r230", "r233", "r234", "r356", "r357", "r358", "r359", "r360", "r361", "r362", "r364", "r377", "r378", "r649", "r650", "r651", "r652", "r653", "r654", "r655", "r656", "r657", "r658", "r659", "r660" ], "lang": { "en-US": { "role": { "documentation": "Indicates amendment to accounting standards.", "label": "Accounting Standards Update [Extensible List]", "terseLabel": "Accounting standards update" } } }, "localname": "AccountingStandardsUpdateExtensibleList", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical", "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "extensibleListItemType" }, "us-gaap_AccountsNotesAndLoansReceivableLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Accounts, Notes, Loans and Financing Receivable [Line Items]", "terseLabel": "Accounts, Notes, Loans and Financing Receivable [Line Items]" } } }, "localname": "AccountsNotesAndLoansReceivableLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis": { "auth_ref": [ "r26" ], "lang": { "en-US": { "role": { "documentation": "Information by type of receivable.", "label": "Receivable Type [Axis]", "terseLabel": "Receivable Type [Axis]" } } }, "localname": "AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": { "auth_ref": [ "r11", "r43", "r45", "r46", "r634", "r656", "r660" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 5.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.", "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax", "terseLabel": "Accumulated other comprehensive income" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeMember": { "auth_ref": [ "r42", "r46", "r49", "r101", "r102", "r103", "r407", "r651", "r652" ], "lang": { "en-US": { "role": { "documentation": "Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.", "label": "AOCI Attributable to Parent [Member]", "verboseLabel": "Accumulated Other Comprehensive Income (Loss)" } } }, "localname": "AccumulatedOtherComprehensiveIncomeMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_AdditionalPaidInCapitalCommonStock": { "auth_ref": [ "r9" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.", "label": "Additional Paid in Capital, Common Stock", "terseLabel": "Additional paid-in capital" } } }, "localname": "AdditionalPaidInCapitalCommonStock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdditionalPaidInCapitalMember": { "auth_ref": [ "r101", "r102", "r103", "r360", "r361", "r362" ], "lang": { "en-US": { "role": { "documentation": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders.", "label": "Additional Paid-in Capital [Member]", "terseLabel": "Additional Paid-in Capital" } } }, "localname": "AdditionalPaidInCapitalMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical" ], "xbrltype": "domainItemType" }, "us-gaap_AdjustmentsForNewAccountingPronouncementsAxis": { "auth_ref": [ "r107", "r108", "r109", "r111", "r227", "r228", "r229", "r230", "r233", "r234", "r356", "r357", "r358", "r359", "r360", "r361", "r362", "r364", "r375", "r376", "r377", "r378", "r555", "r556", "r557", "r649", "r650", "r651", "r652", "r653", "r654", "r655", "r656", "r657", "r658", "r659", "r660" ], "lang": { "en-US": { "role": { "documentation": "Information by amendment to accounting standards.", "label": "Accounting Standards Update [Axis]", "terseLabel": "Adjustments for New Accounting Pronouncements [Axis]" } } }, "localname": "AdjustmentsForNewAccountingPronouncementsAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": { "auth_ref": [ "r354", "r355", "r365", "r366" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.", "label": "APIC, Share-based Payment Arrangement, Increase for Cost Recognition", "terseLabel": "Share-based compensation" } } }, "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts": { "auth_ref": [ "r327", "r332" ], "crdr": "debit", "lang": { "en-US": { "role": { "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.", "label": "Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs", "terseLabel": "Expenses incurred in stock issuance" } } }, "localname": "AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]", "terseLabel": "Adjustments to reconcile net income to net cash provided by operating activities:" } } }, "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock": { "auth_ref": [ "r179", "r247" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of allowance for credit loss on financing receivable.", "label": "Financing Receivable, Allowance for Credit Loss [Table Text Block]", "terseLabel": "Schedule of Changes in Allowance for Credit Losses" } } }, "localname": "AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_AlternativeInvestmentMeasurementInput": { "auth_ref": [ "r461" ], "lang": { "en-US": { "role": { "documentation": "Value of input used to measure alternative investment.", "label": "Alternative Investment, Measurement Input", "terseLabel": "Measurement input" } } }, "localname": "AlternativeInvestmentMeasurementInput", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails" ], "xbrltype": "decimalItemType" }, "us-gaap_AmortizationOfIntangibleAssets": { "auth_ref": [ "r85", "r297", "r303" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 7.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.", "label": "Amortization of Intangible Assets", "verboseLabel": "Amortization of intangibles" } } }, "localname": "AmortizationOfIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_Assets": { "auth_ref": [ "r95", "r156", "r164", "r168", "r225", "r404", "r409", "r476", "r569", "r631" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.", "label": "Assets", "totalLabel": "Total assets" } } }, "localname": "Assets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Assets [Abstract]", "terseLabel": "ASSETS" } } }, "localname": "AssetsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsNeededForImmediateSettlementAggregateFairValue": { "auth_ref": [ "r442" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The aggregate fair value of assets needed to immediately settle the derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period.", "label": "Assets Needed for Immediate Settlement, Aggregate Fair Value", "terseLabel": "Assets needed for immediate settlement, aggregate fair value" } } }, "localname": "AssetsNeededForImmediateSettlementAggregateFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax": { "auth_ref": [ "r208" ], "crdr": "credit", "lang": { "en-US": { "role": { "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).", "label": "Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax", "terseLabel": "Gross Unrealized Gains" } } }, "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax": { "auth_ref": [ "r209" ], "crdr": "debit", "lang": { "en-US": { "role": { "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).", "label": "Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax", "terseLabel": "Gross Unrealized Losses" } } }, "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis": { "auth_ref": [ "r205", "r276" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Debt Securities, Available-for-sale, Amortized Cost", "terseLabel": "Amortized Cost" } } }, "localname": "AvailableForSaleDebtSecuritiesAmortizedCostBasis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails", "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Debt Securities, Available-for-sale, Maturity, Amortized Cost, Rolling Maturity [Abstract]", "terseLabel": "Amortized Cost" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Debt Securities, Available-for-sale, Maturity, Fair Value, Rolling Maturity [Abstract]", "terseLabel": "Fair\u00a0Value" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails": { "order": 2.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost", "terseLabel": "Due in one year or less, amortized cost" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails": { "order": 1.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value", "terseLabel": "Due in one year or less, estimated fair value" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails": { "order": 3.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after rolling tenth fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost", "terseLabel": "Due after ten years, amortized cost" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails": { "order": 4.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after rolling tenth fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value", "terseLabel": "Due after ten years, estimated fair value" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails": { "order": 4.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amortized cost of investment in debt security, measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in rolling sixth through tenth fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Amortized Cost", "terseLabel": "Due after five years through ten years, amortized cost" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails": { "order": 3.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of investment in debt security, measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in rolling sixth through tenth fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value", "terseLabel": "Due after five years through ten years, estimated fair value" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails": { "order": 1.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next rolling fiscal year through fifth year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost", "terseLabel": "Due after one year through five years, amortized cost" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails": { "order": 2.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of investment in debt security, measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next rolling fiscal year through fifth year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value", "terseLabel": "Due after one year through five years, estimated fair value" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate": { "auth_ref": [ "r210", "r212", "r613" ], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value", "totalLabel": "Total maturing securities, fair value" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis": { "auth_ref": [ "r210", "r212", "r612" ], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date.", "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost", "totalLabel": "Total maturing securities, amortized cost" } } }, "localname": "AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtSecurities": { "auth_ref": [ "r202", "r206", "r276", "r573" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Debt Securities, Available-for-sale", "terseLabel": "Debt securities available for sale", "verboseLabel": "Debt securities available for sale at fair value" } } }, "localname": "AvailableForSaleSecuritiesDebtSecurities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets", "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails", "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BankOwnedLifeInsurance": { "auth_ref": [ "r568" ], "calculation": { "http://www.midwestone.com/role/OtherAssetsDetails": { "order": 7.0, "parentTag": "us-gaap_OtherAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy.", "label": "Bank Owned Life Insurance", "terseLabel": "Bank-owned life insurance" } } }, "localname": "BankOwnedLifeInsurance", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/OtherAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BankOwnedLifeInsuranceIncome": { "auth_ref": [ "r597" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 5.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies.", "label": "Bank Owned Life Insurance Income", "terseLabel": "Bank-owned life insurance" } } }, "localname": "BankOwnedLifeInsuranceIncome", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_BankingRegulationLeverageBufferActual": { "auth_ref": [ "r622" ], "lang": { "en-US": { "role": { "documentation": "Leverage buffer percentage as defined by regulatory framework.", "label": "Banking Regulation, Leverage Buffer, Actual", "terseLabel": "Capital conservation buffer" } } }, "localname": "BankingRegulationLeverageBufferActual", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "pureItemType" }, "us-gaap_BasisOfAccountingPolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).", "label": "Basis of Accounting, Policy [Policy Text Block]", "terseLabel": "Basis of Presentation" } } }, "localname": "BasisOfAccountingPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_BusinessAcquisitionAcquireeDomain": { "auth_ref": [ "r349", "r352" ], "lang": { "en-US": { "role": { "documentation": "Identification of the acquiree in a material business combination (or series of individually immaterial business combinations), which may include the name or other type of identification of the acquiree.", "label": "Business Acquisition, Acquiree [Domain]", "terseLabel": "Business Acquisition, Acquiree [Domain]" } } }, "localname": "BusinessAcquisitionAcquireeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_BusinessAcquisitionAxis": { "auth_ref": [ "r349", "r352", "r394", "r395" ], "lang": { "en-US": { "role": { "documentation": "Information by business combination or series of individually immaterial business combinations.", "label": "Business Acquisition [Axis]", "terseLabel": "Business Acquisition [Axis]" } } }, "localname": "BusinessAcquisitionAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned": { "auth_ref": [ "r400" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.", "label": "Business Acquisition, Equity Interest Issued or Issuable, Value Assigned", "terseLabel": "Value of equity interest issued" } } }, "localname": "BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Business Acquisition, Equity Interests Issued or Issuable [Line Items]", "terseLabel": "Business Acquisition, Equity Interests Issued or Issuable [Line Items]" } } }, "localname": "BusinessAcquisitionEquityInterestsIssuedOrIssuableLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued": { "auth_ref": [ "r400" ], "lang": { "en-US": { "role": { "documentation": "Number of shares of equity interests issued or issuable to acquire entity.", "label": "Business Acquisition, Equity Interest Issued or Issuable, Number of Shares", "terseLabel": "Number of shares issued (in shares)" } } }, "localname": "BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities": { "auth_ref": [ "r397" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of investments in debt and equity securities, including, but not limited to, held-to-maturity, trading and available-for-sale expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Marketable Securities", "terseLabel": "Debt securities available for sale" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles": { "auth_ref": [ "r396", "r397" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of identifiable intangible assets recognized as of the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles", "verboseLabel": "Core deposit intangible" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets": { "auth_ref": [ "r397" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets", "terseLabel": "Other assets" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment": { "auth_ref": [ "r396", "r397" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of property, plant, and equipment recognized as of the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment", "terseLabel": "Premises and equipment" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_Capital": { "auth_ref": [ "r622", "r667", "r668" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of total capital as defined by regulatory framework.", "label": "Banking Regulation, Total Capital, Actual", "terseLabel": "Capital" } } }, "localname": "Capital", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeaseObligationsMember": { "auth_ref": [ "r490" ], "lang": { "en-US": { "role": { "documentation": "A borrowing recorded for a lease meeting the criteria for capitalization. A lease is defined as an agreement conveying the right to use property, plant, or equipment (land or depreciable assets) usually for a stated period of time.", "label": "Capital Lease Obligations [Member]", "terseLabel": "Finance lease payable" } } }, "localname": "CapitalLeaseObligationsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CapitalRequiredForCapitalAdequacy": { "auth_ref": [ "r622", "r626" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of minimum total risk-based capital required for capital adequacy as defined by regulatory framework.", "label": "Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum", "terseLabel": "Capital required for capital adequacy" } } }, "localname": "CapitalRequiredForCapitalAdequacy", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets": { "auth_ref": [ "r622", "r626" ], "lang": { "en-US": { "role": { "documentation": "Ratio of minimum total risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework.", "label": "Banking Regulation, Total Risk-Based Capital Ratio, Capital Adequacy, Minimum", "terseLabel": "Capital required for capital adequacy to risk weighted assets" } } }, "localname": "CapitalRequiredForCapitalAdequacyToRiskWeightedAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "pureItemType" }, "us-gaap_CapitalRequiredToBeWellCapitalized": { "auth_ref": [ "r622" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of minimum total risk-based capital categorized as well capitalized as defined by regulatory framework for prompt corrective action.", "label": "Banking Regulation, Total Risk-Based Capital, Well Capitalized, Minimum", "terseLabel": "Capital required to be well capitalized" } } }, "localname": "CapitalRequiredToBeWellCapitalized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets": { "auth_ref": [ "r622" ], "lang": { "en-US": { "role": { "documentation": "Ratio of minimum total risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action.", "label": "Banking Regulation, Total Risk-Based Capital Ratio, Well Capitalized, Minimum", "terseLabel": "Capital required to be well capitalized to risk weighted assets" } } }, "localname": "CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "pureItemType" }, "us-gaap_CapitalToRiskWeightedAssets": { "auth_ref": [ "r622" ], "lang": { "en-US": { "role": { "documentation": "Ratio of total risk-based capital to risk-weighted assets as defined by regulatory framework.", "label": "Banking Regulation, Total Risk-Based Capital Ratio, Actual", "terseLabel": "Capital to risk weighted assets" } } }, "localname": "CapitalToRiskWeightedAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "pureItemType" }, "us-gaap_CarryingReportedAmountFairValueDisclosureMember": { "auth_ref": [ "r471", "r472" ], "lang": { "en-US": { "role": { "documentation": "Measured as reported on the statement of financial position (balance sheet).", "label": "Reported Value Measurement [Member]", "terseLabel": "Carrying Amount" } } }, "localname": "CarryingReportedAmountFairValueDisclosureMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CashAcquiredFromAcquisition": { "auth_ref": [ "r68" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).", "label": "Cash Acquired from Acquisition", "terseLabel": "Net cash acquired in business acquisition" } } }, "localname": "CashAcquiredFromAcquisition", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsFairValueDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value portion 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.", "label": "Cash and Cash Equivalents, Fair Value Disclosure", "terseLabel": "Cash and cash equivalents" } } }, "localname": "CashAndCashEquivalentsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndDueFromBanks": { "auth_ref": [ "r566" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_CashCashEquivalentsAndFederalFundsSold", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.", "label": "Cash and Due from Banks", "terseLabel": "Cash and due from banks" } } }, "localname": "CashAndDueFromBanks", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsAndFederalFundsSold": { "auth_ref": [ "r575" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The sum of cash and cash equivalents plus Federal Funds Sold. Cash and cash equivalents consist of short term, highly liquid investments that are readily convertible to known amounts of cash and are so near their maturity that they present negligible risk of changes in value due to changes in interest rates -- usually with an original maturity less than 90 days.", "label": "Cash, Cash Equivalents, and Federal Funds Sold", "totalLabel": "Total cash and cash equivalents" } } }, "localname": "CashCashEquivalentsAndFederalFundsSold", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": { "auth_ref": [ "r79", "r87", "r93" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents", "periodEndLabel": "Ending balance", "periodStartLabel": "Beginning of Period" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperationsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations [Abstract]", "terseLabel": "Cash and cash equivalents:" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperationsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": { "auth_ref": [ "r79", "r477" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect", "totalLabel": "Net increase in cash and cash equivalents" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashFlowHedgingMember": { "auth_ref": [ "r417" ], "lang": { "en-US": { "role": { "documentation": "Hedge of the exposure to variability in the cash flows of a recognized asset or liability, or of a forecasted transaction, that is attributable to a particular risk.", "label": "Cash Flow Hedging [Member]", "terseLabel": "Cash flow hedges" } } }, "localname": "CashFlowHedgingMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]", "terseLabel": "Supplemental schedule of non-cash investing and financing activities:" } } }, "localname": "CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_CashReserveDepositRequiredAndMade": { "auth_ref": [ "r565" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Cash deposited in a special reserve account for the exclusive benefit of customers pursuant to SEC Regulations.", "label": "Cash Reserve Deposit Required and Made", "terseLabel": "Cash reserve deposit required and made" } } }, "localname": "CashReserveDepositRequiredAndMade", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1": { "auth_ref": [ "r452" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement.", "label": "Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments", "terseLabel": "Change in fair value of derivative instruments" } } }, "localname": "ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1": { "auth_ref": [ "r452" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.", "label": "Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge", "terseLabel": "Change in fair value of hedged items" } } }, "localname": "ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CollateralAxis": { "auth_ref": [ "r267" ], "lang": { "en-US": { "role": { "documentation": "Information by category of collateral or no collateral, from lender's perspective.", "label": "Collateral Held [Axis]", "terseLabel": "Collateral [Axis]" } } }, "localname": "CollateralAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CollateralDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Category of collateral or no collateral, from lender's perspective.", "label": "Collateral Held [Domain]", "terseLabel": "Collateral [Domain]" } } }, "localname": "CollateralDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CollateralPledgedMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Pledge of specific property to serve as protection against default.", "label": "Collateral Pledged [Member]", "terseLabel": "Collateral Pledged" } } }, "localname": "CollateralPledgedMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CollateralizedMortgageObligationsMember": { "auth_ref": [ "r321" ], "lang": { "en-US": { "role": { "documentation": "The category includes multiclass, pay-through securitizations collateralized by mortgages secured by assets, such as automobiles and boats, which are generally structured so that the collections of principal and interest due from the underlying debtors are paid to the holders of the CMO.", "label": "Collateralized Mortgage Obligations [Member]", "terseLabel": "Collateralized mortgage obligations" } } }, "localname": "CollateralizedMortgageObligationsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails", "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommercialPortfolioSegmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Portfolio segment of the company's total financing receivables related to commercial receivables.", "label": "Commercial Portfolio Segment [Member]", "terseLabel": "Commercial and industrial" } } }, "localname": "CommercialPortfolioSegmentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommercialRealEstatePortfolioSegmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Portfolio segment of the company's total financing receivables related to commercial real estate.", "label": "Commercial Real Estate Portfolio Segment [Member]", "terseLabel": "Commercial real estate" } } }, "localname": "CommercialRealEstatePortfolioSegmentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails", "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Commitments and Contingencies Disclosure [Abstract]", "terseLabel": "Commitments and Contingencies Disclosure [Abstract]" } } }, "localname": "CommitmentsAndContingenciesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": { "auth_ref": [ "r312", "r313", "r314", "r316" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for commitments and contingencies.", "label": "Commitments and Contingencies Disclosure [Text Block]", "terseLabel": "Commitments and Contingencies" } } }, "localname": "CommitmentsAndContingenciesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingencies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CommitmentsToExtendCreditMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Loan commitments are legally binding commitments to extend credit to a counterparty under certain terms and conditions.", "label": "Commitments to Extend Credit [Member]", "terseLabel": "Commitments to extend credit" } } }, "localname": "CommitmentsToExtendCreditMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesScheduleofCommitmentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommonEquityTierOneCapital": { "auth_ref": [ "r622" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of Common Equity Tier 1 risk-based capital as defined by regulatory framework.", "label": "Banking Regulation, Common Equity Tier One Risk-Based Capital, Actual", "terseLabel": "Common equity tier one capital" } } }, "localname": "CommonEquityTierOneCapital", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommonEquityTierOneCapitalRequiredForCapitalAdequacy": { "auth_ref": [ "r622", "r626" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of minimum Common Equity Tier 1 risk-based capital required for capital adequacy as defined by regulatory framework.", "label": "Banking Regulation, Common Equity Tier One Risk-Based Capital, Capital Adequacy, Minimum", "terseLabel": "Common equity tier one capital required for capital adequacy" } } }, "localname": "CommonEquityTierOneCapitalRequiredForCapitalAdequacy", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommonStockDividendsPerShareCashPaid": { "auth_ref": [ "r332" ], "lang": { "en-US": { "role": { "documentation": "Aggregate dividends paid during the period for each share of common stock outstanding.", "label": "Common Stock, Dividends, Per Share, Cash Paid", "terseLabel": "Dividends paid on common stock (in dollars per share)", "verboseLabel": "Dividends paid (in dollars per share)" } } }, "localname": "CommonStockDividendsPerShareCashPaid", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical" ], "xbrltype": "perShareItemType" }, "us-gaap_CommonStockMember": { "auth_ref": [ "r101", "r102" ], "lang": { "en-US": { "role": { "documentation": "Stock that is subordinate to all other stock of the issuer.", "label": "Common Stock [Member]", "terseLabel": "Common Stock" } } }, "localname": "CommonStockMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical", "http://www.midwestone.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommonStockParOrStatedValuePerShare": { "auth_ref": [ "r7" ], "lang": { "en-US": { "role": { "documentation": "Face amount or stated value per share of common stock.", "label": "Common Stock, Par or Stated Value Per Share", "terseLabel": "Common stock, par value (in dollars per share)" } } }, "localname": "CommonStockParOrStatedValuePerShare", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "perShareItemType" }, "us-gaap_CommonStockSharesAuthorized": { "auth_ref": [ "r7" ], "lang": { "en-US": { "role": { "documentation": "The maximum number of common shares permitted to be issued by an entity's charter and bylaws.", "label": "Common Stock, Shares Authorized", "terseLabel": "Common stock, shares authorized (in shares)" } } }, "localname": "CommonStockSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesIssued": { "auth_ref": [ "r7" ], "lang": { "en-US": { "role": { "documentation": "Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.", "label": "Common Stock, Shares, Issued", "terseLabel": "Common stock, shares issued (in shares)" } } }, "localname": "CommonStockSharesIssued", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesOutstanding": { "auth_ref": [ "r7", "r327" ], "lang": { "en-US": { "role": { "documentation": "Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.", "label": "Common Stock, Shares, Outstanding", "terseLabel": "Common stock, shares outstanding (in shares)" } } }, "localname": "CommonStockSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockValue": { "auth_ref": [ "r7" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.", "label": "Common Stock, Value, Issued", "terseLabel": "Common stock, $1.00 par value; authorized 30,000,000 shares; issued shares of 16,581,017 and 16,581,017; outstanding shares of 16,099,324 and 16,162,176" } } }, "localname": "CommonStockValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_Communication": { "auth_ref": [ "r64" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 9.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of expense incurred in the period for communication, which is the exchange of information by several methods.", "label": "Communication", "terseLabel": "Communications" } } }, "localname": "Communication", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]", "terseLabel": "Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]" } } }, "localname": "ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ComprehensiveIncomeNetOfTax": { "auth_ref": [ "r52", "r54", "r55", "r60", "r588", "r640" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.", "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent", "totalLabel": "Comprehensive income" } } }, "localname": "ComprehensiveIncomeNetOfTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_ConcentrationRiskBenchmarkDomain": { "auth_ref": [ "r145", "r146", "r171", "r473", "r474" ], "lang": { "en-US": { "role": { "documentation": "The denominator in a calculation of a disclosed concentration risk percentage.", "label": "Concentration Risk Benchmark [Domain]", "terseLabel": "Concentration Risk Benchmark [Domain]" } } }, "localname": "ConcentrationRiskBenchmarkDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ConcentrationRiskByBenchmarkAxis": { "auth_ref": [ "r145", "r146", "r171", "r473", "r474", "r662" ], "lang": { "en-US": { "role": { "documentation": "Information by benchmark of concentration risk.", "label": "Concentration Risk Benchmark [Axis]", "terseLabel": "Concentration Risk Benchmark [Axis]" } } }, "localname": "ConcentrationRiskByBenchmarkAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ConcentrationRiskByTypeAxis": { "auth_ref": [ "r145", "r146", "r171", "r473", "r474", "r662" ], "lang": { "en-US": { "role": { "documentation": "Information by type of concentration risk, for example, but not limited to, asset, liability, net assets, geographic, customer, employees, supplier, lender.", "label": "Concentration Risk Type [Axis]", "terseLabel": "Concentration Risk Type [Axis]" } } }, "localname": "ConcentrationRiskByTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ConcentrationRiskLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Concentration Risk [Line Items]", "terseLabel": "Concentration Risk [Line Items]" } } }, "localname": "ConcentrationRiskLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ConcentrationRiskPercentage1": { "auth_ref": [ "r145", "r146", "r171", "r473", "r474" ], "lang": { "en-US": { "role": { "documentation": "For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the \"benchmark\" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.", "label": "Concentration Risk, Percentage", "terseLabel": "Concentration risk, percentage" } } }, "localname": "ConcentrationRiskPercentage1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ConcentrationRiskTable": { "auth_ref": [ "r144", "r145", "r146", "r147", "r473", "r475" ], "lang": { "en-US": { "role": { "documentation": "Describes the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.", "label": "Concentration Risk [Table]", "terseLabel": "Concentration Risk [Table]" } } }, "localname": "ConcentrationRiskTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ConcentrationRiskTypeDomain": { "auth_ref": [ "r145", "r146", "r171", "r473", "r474" ], "lang": { "en-US": { "role": { "documentation": "For an entity that discloses a concentration risk as a percentage of some financial balance or benchmark, identifies the type (for example, asset, liability, net assets, geographic, customer, employees, supplier, lender) of the concentration.", "label": "Concentration Risk Type [Domain]", "terseLabel": "Concentration Risk Type [Domain]" } } }, "localname": "ConcentrationRiskTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ConsumerPortfolioSegmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Portfolio segment of the company's total financing receivables related to consumer receivables.", "label": "Consumer Portfolio Segment [Member]", "terseLabel": "Consumer" } } }, "localname": "ConsumerPortfolioSegmentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CoreDepositsMember": { "auth_ref": [ "r617" ], "lang": { "en-US": { "role": { "documentation": "Entity's long-term relationships with depositors, commonly known as core deposit intangibles, which are separate from the financial instruments themselves.", "label": "Core Deposits [Member]", "terseLabel": "Core deposit intangible" } } }, "localname": "CoreDepositsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows", "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails", "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CreditConcentrationRiskMember": { "auth_ref": [ "r475" ], "lang": { "en-US": { "role": { "documentation": "Reflects the percentage that a specified receivable or amount at risk from a counterparty under a contractual arrangement is to a specified benchmark, such as total receivables, net revenues, pretax results. Risk is the materially adverse effects of loss attributable to (a) the failure to collect a significant receivable from a major customer or group of homogeneous accounts, or (b) a failure by a counterparty to perform under terms of a contractual arrangement.", "label": "Credit Concentration Risk [Member]", "terseLabel": "Credit Concentration Risk" } } }, "localname": "CreditConcentrationRiskMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CreditLossFinancialInstrumentPolicyTextBlock": { "auth_ref": [ "r235", "r236", "r237", "r240", "r241", "r248", "r254", "r258", "r259", "r260", "r273", "r274", "r275", "r277", "r278", "r279", "r285" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for credit loss on financial instrument measured at amortized cost basis, net investment in lease, off-balance sheet credit exposure, and available-for-sale debt security. Includes, but is not limited to, methodology used to estimate allowance for credit loss, how writeoff of uncollectible amount is recognized, and determination of past due status and nonaccrual status.", "label": "Credit Loss, Financial Instrument [Policy Text Block]", "terseLabel": "Allowance for Credit Losses" } } }, "localname": "CreditLossFinancialInstrumentPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CreditLossStatusAxis": { "auth_ref": [ "r199", "r272", "r290" ], "lang": { "en-US": { "role": { "documentation": "Information by credit loss status of financial asset.", "label": "Credit Loss Status [Axis]", "terseLabel": "Credit Loss Status [Axis]" } } }, "localname": "CreditLossStatusAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CreditLossStatusDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Credit loss status of financial asset.", "label": "Credit Loss Status [Domain]", "terseLabel": "Credit Loss Status [Domain]" } } }, "localname": "CreditLossStatusDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CreditRiskContractMember": { "auth_ref": [ "r341", "r434" ], "lang": { "en-US": { "role": { "documentation": "Derivative instrument whose primary underlying risk is tied to the creditworthiness or the credit spread of an entity.", "label": "Credit Risk Contract [Member]", "terseLabel": "RPAs" } } }, "localname": "CreditRiskContractMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofOtherDerivativesNotDesignatedasHedgingInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CustomerRelationshipsMember": { "auth_ref": [ "r398" ], "lang": { "en-US": { "role": { "documentation": "Customer relationship that exists between an entity and its customer, for example, but not limited to, tenant relationships.", "label": "Customer Relationships [Member]", "terseLabel": "Customer relationship intangible" } } }, "localname": "CustomerRelationshipsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails", "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Debt Disclosure [Abstract]", "terseLabel": "Debt Disclosure [Abstract]" } } }, "localname": "DebtDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentAxis": { "auth_ref": [ "r3", "r4", "r5", "r570", "r571", "r629" ], "lang": { "en-US": { "role": { "documentation": "Information by type of debt instrument, including, but not limited to, draws against credit facilities.", "label": "Debt Instrument [Axis]", "terseLabel": "Debt Instrument [Axis]" } } }, "localname": "DebtInstrumentAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails", "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails", "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "http://www.midwestone.com/role/SubsequentEventsDetails", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentBasisSpreadOnVariableRate1": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Percentage points added to the reference rate to compute the variable rate on the debt instrument.", "label": "Debt Instrument, Basis Spread on Variable Rate", "terseLabel": "Debt instrument, basis spread on variable rate" } } }, "localname": "DebtInstrumentBasisSpreadOnVariableRate1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails", "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DebtInstrumentCarryingAmount": { "auth_ref": [ "r5", "r323", "r571", "r629" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.", "label": "Long-term Debt, Gross", "terseLabel": "Balance" } } }, "localname": "DebtInstrumentCarryingAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentFaceAmount": { "auth_ref": [ "r487", "r489" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Face (par) amount of debt instrument at time of issuance.", "label": "Debt Instrument, Face Amount", "terseLabel": "Original note face amount", "verboseLabel": "Debt instrument, face amount" } } }, "localname": "DebtInstrumentFaceAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails", "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails", "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentInterestRateEffectivePercentage": { "auth_ref": [ "r21", "r325", "r487" ], "lang": { "en-US": { "role": { "documentation": "Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.", "label": "Debt Instrument, Interest Rate, Effective Percentage", "terseLabel": "Interest rate" } } }, "localname": "DebtInstrumentInterestRateEffectivePercentage", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DebtInstrumentInterestRateStatedPercentage": { "auth_ref": [ "r21" ], "lang": { "en-US": { "role": { "documentation": "Contractual interest rate for funds borrowed, under the debt agreement.", "label": "Debt Instrument, Interest Rate, Stated Percentage", "terseLabel": "Interest rate" } } }, "localname": "DebtInstrumentInterestRateStatedPercentage", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "http://www.midwestone.com/role/SubsequentEventsDetails", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DebtInstrumentLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Debt Instrument [Line Items]", "terseLabel": "Debt Instrument [Line Items]" } } }, "localname": "DebtInstrumentLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails", "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails", "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentNameDomain": { "auth_ref": [ "r22" ], "lang": { "en-US": { "role": { "documentation": "The name for the particular debt instrument or borrowing that distinguishes it from other debt instruments or borrowings, including draws against credit facilities.", "label": "Debt Instrument, Name [Domain]", "terseLabel": "Debt Instrument, Name [Domain]" } } }, "localname": "DebtInstrumentNameDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails", "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails", "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "http://www.midwestone.com/role/SubsequentEventsDetails", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtInstrumentTable": { "auth_ref": [ "r22", "r97", "r328", "r329", "r330", "r331", "r486", "r487", "r489", "r618" ], "lang": { "en-US": { "role": { "documentation": "A table or schedule providing information pertaining to long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.", "label": "Schedule of Long-term Debt Instruments [Table]", "terseLabel": "Schedule of Long-term Debt Instruments [Table]" } } }, "localname": "DebtInstrumentTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails", "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails", "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtSecuritiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Debt Securities [Abstract]", "terseLabel": "Debt Securities [Abstract]" } } }, "localname": "DebtSecuritiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleAllowanceForCreditLoss": { "auth_ref": [ "r207", "r276", "r286", "r287" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Debt Securities, Available-for-sale, Allowance for Credit Loss", "terseLabel": "Allowance for Credit Loss related to Debt Securities" } } }, "localname": "DebtSecuritiesAvailableForSaleAllowanceForCreditLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger": { "auth_ref": [ "r219", "r284", "r289" ], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails": { "order": 1.0, "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer", "terseLabel": "12 Months or more, fair value" } } }, "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss": { "auth_ref": [ "r219", "r284" ], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails": { "order": 2.0, "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss", "terseLabel": "12 Months or more, unrealized loss" } } }, "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months": { "auth_ref": [ "r219", "r284", "r289" ], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails": { "order": 2.0, "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months", "terseLabel": "Less than 12 months, fair value" } } }, "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss": { "auth_ref": [ "r219", "r284" ], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails": { "order": 1.0, "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss", "terseLabel": "Less than 12 months, unrealized losses" } } }, "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleGainLoss": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 15.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of unrealized and realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Debt Securities, Available-for-sale, Gain (Loss)", "negatedLabel": "Net gain on sale or call of debt securities available for sale" } } }, "localname": "DebtSecuritiesAvailableForSaleGainLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleRealizedGain": { "auth_ref": [ "r221" ], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesProceedsandGrossRealizedGainsLossesDetails": { "order": 2.0, "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleRealizedGainLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Debt Securities, Available-for-sale, Realized Gain", "terseLabel": "Gross realized gains from sales of debt securities available for sale" } } }, "localname": "DebtSecuritiesAvailableForSaleRealizedGain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesProceedsandGrossRealizedGainsLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleRealizedGainLoss": { "auth_ref": [ "r221" ], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesProceedsandGrossRealizedGainsLossesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Debt Securities, Available-for-sale, Realized Gain (Loss)", "totalLabel": "Net realized gain from sales of debt securities available for sale" } } }, "localname": "DebtSecuritiesAvailableForSaleRealizedGainLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesProceedsandGrossRealizedGainsLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleRealizedLoss": { "auth_ref": [ "r221" ], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesProceedsandGrossRealizedGainsLossesDetails": { "order": 1.0, "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleRealizedGainLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Debt Securities, Available-for-sale, Realized Loss", "negatedLabel": "Gross realized losses from sales of debt securities available for sale" } } }, "localname": "DebtSecuritiesAvailableForSaleRealizedLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesProceedsandGrossRealizedGainsLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleTable": { "auth_ref": [ "r224" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Debt Securities, Available-for-sale [Table]", "terseLabel": "Debt Securities, Available-for-sale [Table]" } } }, "localname": "DebtSecuritiesAvailableForSaleTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAdditionalInformationDetails", "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock": { "auth_ref": [ "r224" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Debt Securities, Available-for-sale [Table Text Block]", "terseLabel": "Schedule of Debt Securities, Available-for-sale" } } }, "localname": "DebtSecuritiesAvailableForSaleTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition": { "auth_ref": [ "r215", "r280", "r289" ], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss.", "label": "Debt Securities, Available-for-sale, Unrealized Loss Position", "totalLabel": "Fair Value" } } }, "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPosition", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss": { "auth_ref": [ "r216", "r281" ], "calculation": { "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss", "terseLabel": "Accumulated unrealized losses", "totalLabel": "Unrealized Losses" } } }, "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAdditionalInformationDetails", "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions": { "auth_ref": [ "r217", "r282" ], "lang": { "en-US": { "role": { "documentation": "Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.", "label": "Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions", "terseLabel": "Number of Securities", "verboseLabel": "Securities in continuous unrealized loss position" } } }, "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAdditionalInformationDetails", "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails" ], "xbrltype": "integerItemType" }, "us-gaap_DebtSecuritiesMember": { "auth_ref": [ "r224" ], "lang": { "en-US": { "role": { "documentation": "Debt instrument issued by corporations, governments and governmental agencies, municipalities, and other institutions.", "label": "Debt Securities [Member]", "terseLabel": "Debt securities" } } }, "localname": "DebtSecuritiesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtSecuritiesRealizedGainLoss": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 7.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in net income (trading).", "label": "Debt Securities, Realized Gain (Loss)", "terseLabel": "Investment securities gains, net" } } }, "localname": "DebtSecuritiesRealizedGainLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxAssetsNet": { "auth_ref": [ "r367", "r368" ], "calculation": { "http://www.midwestone.com/role/OtherAssetsDetails": { "order": 1.0, "parentTag": "us-gaap_OtherAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.", "label": "Deferred Income Tax Assets, Net", "terseLabel": "Federal & state taxes, deferred" } } }, "localname": "DeferredIncomeTaxAssetsNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "http://www.midwestone.com/role/OtherAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxExpenseBenefit": { "auth_ref": [ "r85", "r96", "r374", "r384", "r385", "r386" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 10.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Deferred Income Tax Expense (Benefit)", "terseLabel": "Increase in deferred income taxes, net" } } }, "localname": "DeferredIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxesAndTaxCredits": { "auth_ref": [ "r86" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred income tax expense (benefit) and income tax credits.", "label": "Deferred Income Taxes and Tax Credits", "terseLabel": "Deferred income taxes" } } }, "localname": "DeferredIncomeTaxesAndTaxCredits", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepositLiabilitiesDisclosuresTextBlock": { "auth_ref": [ "r578", "r616" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for deposit liabilities including data and tables. It may include a description of the entity's deposit liabilities, the aggregate amount of time deposits (including certificates of deposit) in denominations of $100,000 or more at the balance sheet date; the aggregate amount of any demand deposits that have been reclassified as loan balances, such as overdrafts, at the balance sheet date; deposits that are received on terms other than those in the normal course of business, the amount of accrued interest on deposit liabilities; securities, mortgage loans or other financial instruments that serve as collateral for deposits; for time deposits having a remaining term of more than one year, the aggregate amount of maturities for each of the five years following the balance sheet date; and the weighted average interest rate for all deposit liabilities held by the entity.", "label": "Deposit Liabilities Disclosures [Text Block]", "terseLabel": "Deposits" } } }, "localname": "DepositLiabilitiesDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/Deposits" ], "xbrltype": "textBlockItemType" }, "us-gaap_DepositLiabilitiesTypeTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of type of deposit liability.", "label": "Deposit Liabilities, Type [Table Text Block]", "terseLabel": "Deposit Liabilities" } } }, "localname": "DepositLiabilitiesTypeTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DepositsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_Deposits": { "auth_ref": [ "r578" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 }, "http://www.midwestone.com/role/DepositsDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.", "label": "Deposits", "totalLabel": "Total deposits" } } }, "localname": "Deposits", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets", "http://www.midwestone.com/role/DepositsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepositsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Deposits [Abstract]", "terseLabel": "Deposits [Abstract]" } } }, "localname": "DepositsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_DepositsMoneyMarketDeposits": { "auth_ref": [ "r578" ], "calculation": { "http://www.midwestone.com/role/DepositsDetails": { "order": 3.0, "parentTag": "us-gaap_Deposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deposits in accounts that offer many of the same services as checking accounts although transactions may be somewhat more limited, share some of the characteristics of a money market fund and are insured by the Federal government, also known as money market accounts.", "label": "Deposits, Money Market Deposits", "terseLabel": "Money market deposits" } } }, "localname": "DepositsMoneyMarketDeposits", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DepositsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepositsSavingsDeposits": { "auth_ref": [ "r578" ], "calculation": { "http://www.midwestone.com/role/DepositsDetails": { "order": 4.0, "parentTag": "us-gaap_Deposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs).", "label": "Deposits, Savings Deposits", "terseLabel": "Savings deposits" } } }, "localname": "DepositsSavingsDeposits", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DepositsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepreciationDepletionAndAmortization": { "auth_ref": [ "r85", "r154" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "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.", "label": "Depreciation, Depletion and Amortization", "terseLabel": "Depreciation, amortization, and accretion" } } }, "localname": "DepreciationDepletionAndAmortization", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeAssetFairValueGrossLiability": { "auth_ref": [ "r30", "r38", "r424" ], "calculation": { "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.", "label": "Derivative Asset, Fair Value, Gross Liability", "negatedTerseLabel": "Gross Amounts Offset in the Balance Sheet" } } }, "localname": "DerivativeAssetFairValueGrossLiability", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeAssetNotOffsetPolicyElectionDeduction": { "auth_ref": [ "r32", "r36" ], "calculation": { "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be offset, deducted from derivative assets.", "label": "Derivative Asset, Not Offset, Policy Election Deduction", "negatedLabel": "Financial Instruments" } } }, "localname": "DerivativeAssetNotOffsetPolicyElectionDeduction", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeAssets": { "auth_ref": [ "r31", "r35", "r470" ], "calculation": { "http://www.midwestone.com/role/OtherAssetsDetails": { "order": 9.0, "parentTag": "us-gaap_OtherAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.", "label": "Derivative Asset", "terseLabel": "Derivative assets, fair value", "verboseLabel": "Derivative assets" } } }, "localname": "DerivativeAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails", "http://www.midwestone.com/role/OtherAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeAssetsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Derivative Asset [Abstract]", "terseLabel": "Asset Derivatives" } } }, "localname": "DerivativeAssetsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeCollateralObligationToReturnCash": { "auth_ref": [ "r33", "r36", "r447" ], "calculation": { "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.", "label": "Derivative, Collateral, Obligation to Return Cash", "negatedLabel": "Cash Collateral Pledged" } } }, "localname": "DerivativeCollateralObligationToReturnCash", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeCollateralRightToReclaimCash": { "auth_ref": [ "r33", "r36", "r447" ], "calculation": { "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails": { "order": 1.0, "parentTag": "mofg_DerivativeLiabilityAssetFairValueAmountOffsetAgainstCollateral", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.", "label": "Derivative, Collateral, Right to Reclaim Cash", "negatedTerseLabel": "Cash Collateral Pledged" } } }, "localname": "DerivativeCollateralRightToReclaimCash", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeContractTypeDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Financial instrument or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.", "label": "Derivative Contract [Domain]", "terseLabel": "Derivative Contract [Domain]" } } }, "localname": "DerivativeContractTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingHedgedItemsinFairValueHedgingRelationshipDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofOtherDerivativesNotDesignatedasHedgingInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DerivativeFairValueOfDerivativeAsset": { "auth_ref": [ "r29", "r37", "r424", "r530" ], "calculation": { "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.", "label": "Derivative Asset, Fair Value, Gross Asset", "terseLabel": "Gross Amounts of Recognized Assets (Liabilities)" } } }, "localname": "DerivativeFairValueOfDerivativeAsset", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral": { "auth_ref": [ "r31", "r35", "r39", "r448" ], "calculation": { "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails": { "order": 3.0, "parentTag": "us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value, after offset of derivative liability, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.", "label": "Derivative Asset, Fair Value, Amount Not Offset Against Collateral", "totalLabel": "Net Amounts of Assets (Liabilities) presented in the Balance Sheet" } } }, "localname": "DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral": { "auth_ref": [ "r34", "r36", "r446" ], "calculation": { "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value, after effects of master netting arrangements, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset offset against an obligation to return collateral. Includes assets not subject to a master netting arrangement and not elected to be offset.", "label": "Derivative Asset, Fair Value, Amount Offset Against Collateral", "terseLabel": "Collateral related to the agreement", "totalLabel": "Net Assets (Liabilities)" } } }, "localname": "DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeFairValueOfDerivativeLiability": { "auth_ref": [ "r29", "r37", "r424", "r530" ], "calculation": { "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.", "label": "Derivative Liability, Fair Value, Gross Liability", "negatedTerseLabel": "Gross Amounts of Recognized Assets (Liabilities)" } } }, "localname": "DerivativeFairValueOfDerivativeLiability", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral": { "auth_ref": [ "r31", "r35", "r39", "r448" ], "calculation": { "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails": { "order": 3.0, "parentTag": "mofg_DerivativeLiabilityAssetFairValueAmountOffsetAgainstCollateral", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value, after offset of derivative asset, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.", "label": "Derivative Liability, Fair Value, Amount Not Offset Against Collateral", "negatedTotalLabel": "Net Amounts of Assets (Liabilities) presented in the Balance Sheet" } } }, "localname": "DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeInstrumentRiskAxis": { "auth_ref": [ "r421", "r425", "r431", "r436" ], "lang": { "en-US": { "role": { "documentation": "Information by type of derivative contract.", "label": "Derivative Instrument [Axis]", "terseLabel": "Derivative Instrument [Axis]" } } }, "localname": "DerivativeInstrumentRiskAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingHedgedItemsinFairValueHedgingRelationshipDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofOtherDerivativesNotDesignatedasHedgingInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Derivative Instruments and Hedging Activities Disclosure [Abstract]", "terseLabel": "Derivative Instruments and Hedging Activities Disclosure [Abstract]" } } }, "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock": { "auth_ref": [ "r455" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.", "label": "Derivative Instruments and Hedging Activities Disclosure [Text Block]", "terseLabel": "Derivatives, Hedging Activities and Balance Sheet Offsetting" } } }, "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsetting" ], "xbrltype": "textBlockItemType" }, "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Derivative Instruments and Hedging Activities Disclosures [Line Items]", "terseLabel": "Derivative Instruments and Hedging Activities Disclosures [Line Items]" } } }, "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingHedgedItemsinFairValueHedgingRelationshipDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about derivatives and hedging activities.", "label": "Derivative Instruments and Hedging Activities Disclosures [Table]", "terseLabel": "Derivative Instruments and Hedging Activities Disclosures [Table]" } } }, "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingHedgedItemsinFairValueHedgingRelationshipDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis": { "auth_ref": [ "r418", "r421", "r431" ], "lang": { "en-US": { "role": { "documentation": "Information by type of hedging relationship.", "label": "Hedging Relationship [Axis]", "terseLabel": "Hedging Relationship [Axis]" } } }, "localname": "DerivativeInstrumentsGainLossByHedgingRelationshipAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingHedgedItemsinFairValueHedgingRelationshipDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable": { "auth_ref": [ "r418", "r421", "r431", "r436", "r437", "r450", "r453" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments.", "label": "Derivative Instruments, Gain (Loss) [Table]", "terseLabel": "Derivative Instruments, Gain (Loss) [Table]" } } }, "localname": "DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofOtherDerivativesNotDesignatedasHedgingInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeInstrumentsGainLossLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Derivative Instruments, Gain (Loss) [Line Items]", "terseLabel": "Derivative Instruments, Gain (Loss) [Line Items]" } } }, "localname": "DerivativeInstrumentsGainLossLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofOtherDerivativesNotDesignatedasHedgingInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet": { "auth_ref": [ "r429", "r432" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.", "label": "Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net", "terseLabel": "Derivatives not designated as hedging, gain (loss)" } } }, "localname": "DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofOtherDerivativesNotDesignatedasHedgingInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeLiabilities": { "auth_ref": [ "r31", "r35", "r470" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.", "label": "Derivative Liability", "terseLabel": "Derivative liabilities, fair value", "verboseLabel": "Derivative liabilities" } } }, "localname": "DerivativeLiabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeLiabilitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Derivative Liability [Abstract]", "terseLabel": "Liability Derivatives" } } }, "localname": "DerivativeLiabilitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeLiabilityFairValueGrossAsset": { "auth_ref": [ "r30", "r38", "r424" ], "calculation": { "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.", "label": "Derivative Liability, Fair Value, Gross Asset", "terseLabel": "Gross Amounts Offset in the Balance Sheet" } } }, "localname": "DerivativeLiabilityFairValueGrossAsset", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeLiabilityNotOffsetPolicyElectionDeduction": { "auth_ref": [ "r32", "r36" ], "calculation": { "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails": { "order": 2.0, "parentTag": "mofg_DerivativeLiabilityAssetFairValueAmountOffsetAgainstCollateral", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be offset, deducted from derivative liabilities.", "label": "Derivative Liability, Not Offset, Policy Election Deduction", "terseLabel": "Financial Instruments" } } }, "localname": "DerivativeLiabilityNotOffsetPolicyElectionDeduction", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingOffsettingDerivativeAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeNetLiabilityPositionAggregateFairValue": { "auth_ref": [ "r441" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument.", "label": "Derivative, Net Liability Position, Aggregate Fair Value", "terseLabel": "Fair value of derivatives in a net liability position, including accrued interest" } } }, "localname": "DerivativeNetLiabilityPositionAggregateFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeNotionalAmount": { "auth_ref": [ "r413", "r415" ], "lang": { "en-US": { "role": { "documentation": "Nominal or face amount used to calculate payment on derivative.", "label": "Derivative, Notional Amount", "terseLabel": "Derivative, notional amount" } } }, "localname": "DerivativeNotionalAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativesFairValueLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Derivatives, Fair Value [Line Items]", "terseLabel": "Derivatives, Fair Value [Line Items]" } } }, "localname": "DerivativesFairValueLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativesPolicyTextBlock": { "auth_ref": [ "r94", "r98", "r412", "r414", "r418", "r419", "r445" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for its derivative instruments and hedging activities.", "label": "Derivatives, Policy [Policy Text Block]", "terseLabel": "Derivatives" } } }, "localname": "DerivativesPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_DesignatedAsHedgingInstrumentMember": { "auth_ref": [ "r418" ], "lang": { "en-US": { "role": { "documentation": "Derivative instrument designated as hedging instrument under Generally Accepted Accounting Principles (GAAP).", "label": "Designated as Hedging Instrument [Member]", "terseLabel": "Designated as Hedging Instrument" } } }, "localname": "DesignatedAsHedgingInstrumentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingHedgedItemsinFairValueHedgingRelationshipDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain": { "auth_ref": [ "r349", "r352" ], "lang": { "en-US": { "role": { "documentation": "Name of disposal group.", "label": "Disposal Group Name [Domain]", "terseLabel": "Disposal Group Name [Domain]" } } }, "localname": "DisposalGroupsIncludingDiscontinuedOperationsNameDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DividendsCommonStockCash": { "auth_ref": [ "r332" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.", "label": "Dividends, Common Stock, Cash", "negatedLabel": "Dividends paid on common stock" } } }, "localname": "DividendsCommonStockCash", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_DividendsPayableAmountPerShare": { "auth_ref": [ "r90" ], "lang": { "en-US": { "role": { "documentation": "The per share amount of a dividend declared, but not paid, as of the financial reporting date.", "label": "Dividends Payable, Amount Per Share", "terseLabel": "Dividends payable (in dollars per share)" } } }, "localname": "DividendsPayableAmountPerShare", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SubsequentEventsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_DomesticCorporateDebtSecuritiesMember": { "auth_ref": [ "r204", "r341", "r348" ], "lang": { "en-US": { "role": { "documentation": "Debt security issued by corporation domiciled in United States of America (US).", "label": "Debt Security, Corporate, US [Member]", "terseLabel": "Corporate debt securities" } } }, "localname": "DomesticCorporateDebtSecuritiesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAdditionalInformationDetails", "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails", "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DoubtfulMember": { "auth_ref": [ "r187", "r262" ], "lang": { "en-US": { "role": { "documentation": "A category of financing receivables that have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable.", "label": "Doubtful [Member]", "terseLabel": "Doubtful" } } }, "localname": "DoubtfulMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EarningsPerShareAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Earnings Per Share [Abstract]", "terseLabel": "Earnings Per Share [Abstract]" } } }, "localname": "EarningsPerShareAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareBasic": { "auth_ref": [ "r61", "r113", "r114", "r115", "r116", "r117", "r124", "r126", "r128", "r129", "r130", "r134", "r135", "r589", "r641" ], "lang": { "en-US": { "role": { "documentation": "The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.", "label": "Earnings Per Share, Basic", "terseLabel": "Earnings - basic (in dollars per share)", "verboseLabel": "Basic earnings per common share (in dollars per share)" } } }, "localname": "EarningsPerShareBasic", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome", "http://www.midwestone.com/role/EarningsperShareDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerShareBasicAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Earnings Per Share, Basic [Abstract]", "terseLabel": "Basic Earnings Per Share:" } } }, "localname": "EarningsPerShareBasicAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EarningsperShareDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareDiluted": { "auth_ref": [ "r61", "r113", "r114", "r115", "r116", "r117", "r126", "r128", "r129", "r130", "r134", "r135", "r589", "r641" ], "lang": { "en-US": { "role": { "documentation": "The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.", "label": "Earnings Per Share, Diluted", "terseLabel": "Earnings - diluted (in dollars per share)", "verboseLabel": "Diluted earnings per common share (in dollars per share)" } } }, "localname": "EarningsPerShareDiluted", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome", "http://www.midwestone.com/role/EarningsperShareDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerShareDilutedAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Earnings Per Share, Diluted [Abstract]", "terseLabel": "Diluted Earnings Per Share:" } } }, "localname": "EarningsPerShareDilutedAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EarningsperShareDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareTextBlock": { "auth_ref": [ "r131", "r132", "r133", "r136" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for earnings per share.", "label": "Earnings Per Share [Text Block]", "terseLabel": "Earnings per Share" } } }, "localname": "EarningsPerShareTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EarningsperShare" ], "xbrltype": "textBlockItemType" }, "us-gaap_EffectiveIncomeTaxRateContinuingOperations": { "auth_ref": [ "r370" ], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "lang": { "en-US": { "role": { "documentation": "Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.", "label": "Effective Income Tax Rate Reconciliation, Percent", "totalLabel": "Total income tax expense" } } }, "localname": "EffectiveIncomeTaxRateContinuingOperations", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Effective Income Tax Rate Reconciliation, Percent [Abstract]", "terseLabel": "% of Pretax Income" } } }, "localname": "EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate": { "auth_ref": [ "r370", "r387" ], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": 1.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Percentage of domestic federal statutory tax rate applicable to pretax income (loss).", "label": "Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent", "terseLabel": "Income tax based on statutory rate" } } }, "localname": "EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther": { "auth_ref": [ "r370", "r387" ], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": 5.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses.", "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent", "terseLabel": "Non-deductible acquisition expenses" } } }, "localname": "EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments": { "auth_ref": [ "r370", "r387" ], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": 7.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.", "label": "Effective Income Tax Rate Reconciliation, Other Adjustments, Percent", "terseLabel": "Other" } } }, "localname": "EffectiveIncomeTaxRateReconciliationOtherAdjustments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes": { "auth_ref": [ "r370", "r387" ], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": 4.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).", "label": "Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent", "terseLabel": "State income taxes, net of federal income tax benefit" } } }, "localname": "EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationTaxExemptIncome": { "auth_ref": [ "r370", "r387" ], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": 2.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": -1.0 } }, "lang": { "en-US": { "role": { "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income (loss) exempt from income taxes.", "label": "Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent", "negatedTerseLabel": "Tax-exempt interest" } } }, "localname": "EffectiveIncomeTaxRateReconciliationTaxExemptIncome", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EquipmentExpense": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 3.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "This element represents equipment expense including depreciation, repairs, rentals, and service contract costs. This item also includes equipment purchases which do not qualify for capitalization in accordance with the entity's accounting policy. This item may also include furniture expenses.", "label": "Equipment Expense", "terseLabel": "Equipment" } } }, "localname": "EquipmentExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquipmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tangible personal property used to produce goods and services.", "label": "Equipment [Member]", "terseLabel": "Equipment" } } }, "localname": "EquipmentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EquityComponentDomain": { "auth_ref": [ "r101", "r102", "r103", "r108", "r118", "r120", "r139", "r230", "r327", "r332", "r360", "r361", "r362", "r377", "r378", "r478", "r479", "r480", "r481", "r482", "r483", "r651", "r652", "r653" ], "lang": { "en-US": { "role": { "documentation": "Components of equity are the parts of the total Equity balance including that which is allocated to common, preferred, treasury stock, retained earnings, etc.", "label": "Equity Component [Domain]", "terseLabel": "Equity Component [Domain]" } } }, "localname": "EquityComponentDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical", "http://www.midwestone.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EstimateOfFairValueFairValueDisclosureMember": { "auth_ref": [ "r470" ], "lang": { "en-US": { "role": { "documentation": "Measured as an estimate of fair value.", "label": "Estimate of Fair Value Measurement [Member]", "terseLabel": "Estimated Fair\u00a0Value" } } }, "localname": "EstimateOfFairValueFairValueDisclosureMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ExtendedMaturityMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Loan modification for an extension of the term of a loan in which it must be paid.", "label": "Extended Maturity [Member]", "terseLabel": "Extended maturity" } } }, "localname": "ExtendedMaturityMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ExtinguishmentOfDebtAmount": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Gross amount of debt extinguished.", "label": "Extinguishment of Debt, Amount", "terseLabel": "Extinguishment of debt, amount" } } }, "localname": "ExtinguishmentOfDebtAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]", "terseLabel": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": { "auth_ref": [ "r456", "r457", "r458", "r464" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about asset and liability measured at fair value on recurring and nonrecurring basis.", "label": "Fair Value, Recurring and Nonrecurring [Table]", "terseLabel": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock": { "auth_ref": [ "r459" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.", "label": "Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]", "terseLabel": "Schedule of Valuation Techniques" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock": { "auth_ref": [ "r456", "r457", "r459" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3).", "label": "Fair Value Measurements, Nonrecurring [Table Text Block]", "terseLabel": "Schedule of Fair Value Measured on Nonrecurring Basis" } } }, "localname": "FairValueAssetsMeasuredOnNonrecurringBasisTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]", "terseLabel": "Fair Value, Balance Sheet Grouping, Financial Statement Captions" } } }, "localname": "FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByBalanceSheetGroupingTable": { "auth_ref": [ "r456", "r471", "r472" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.", "label": "Fair Value, by Balance Sheet Grouping [Table]", "terseLabel": "Fair Value, by Balance Sheet Grouping [Table]" } } }, "localname": "FairValueByBalanceSheetGroupingTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByBalanceSheetGroupingTextBlock": { "auth_ref": [ "r456", "r471" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.", "label": "Fair Value, by Balance Sheet Grouping [Table Text Block]", "terseLabel": "Fair Value, by Balance Sheet Grouping" } } }, "localname": "FairValueByBalanceSheetGroupingTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueByFairValueHierarchyLevelAxis": { "auth_ref": [ "r341", "r342", "r343", "r344", "r345", "r346", "r347", "r348", "r457", "r520", "r521", "r522" ], "lang": { "en-US": { "role": { "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient.", "label": "Fair Value Hierarchy and NAV [Axis]", "terseLabel": "Fair Value Hierarchy and NAV [Axis]" } } }, "localname": "FairValueByFairValueHierarchyLevelAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByMeasurementBasisAxis": { "auth_ref": [ "r456", "r465" ], "lang": { "en-US": { "role": { "documentation": "Information by measurement basis.", "label": "Measurement Basis [Axis]", "terseLabel": "Measurement Basis [Axis]" } } }, "localname": "FairValueByMeasurementBasisAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByMeasurementFrequencyAxis": { "auth_ref": [ "r456", "r457", "r460", "r461", "r466" ], "lang": { "en-US": { "role": { "documentation": "Information by measurement frequency.", "label": "Measurement Frequency [Axis]", "terseLabel": "Fair Value by Measurement Frequency [Axis]" } } }, "localname": "FairValueByMeasurementFrequencyAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosureItemAmountsDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Measurement basis, for example, but not limited to, reported value, fair value, portion at fair value, portion at other than fair value.", "label": "Fair Value Measurement [Domain]", "terseLabel": "Fair Value Measurement [Domain]" } } }, "localname": "FairValueDisclosureItemAmountsDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueDisclosuresAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Fair Value Disclosures [Abstract]", "terseLabel": "Fair Value Disclosures [Abstract]" } } }, "localname": "FairValueDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosuresTextBlock": { "auth_ref": [ "r463" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.", "label": "Fair Value Disclosures [Text Block]", "terseLabel": "Fair Value of Financial Instruments and Fair Value Measurements" } } }, "localname": "FairValueDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurements" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueHedgingMember": { "auth_ref": [ "r416" ], "lang": { "en-US": { "role": { "documentation": "A hedge of the exposure to changes in the fair value of a recognized asset or liability, or of an unrecognized firm commitment, that are attributable to a particular risk.", "label": "Fair Value Hedging [Member]", "terseLabel": "Fair value hedges" } } }, "localname": "FairValueHedgingMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingHedgedItemsinFairValueHedgingRelationshipDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel1Member": { "auth_ref": [ "r341", "r342", "r347", "r348", "r457", "r520" ], "lang": { "en-US": { "role": { "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.", "label": "Fair Value, Inputs, Level 1 [Member]", "terseLabel": "Level 1" } } }, "localname": "FairValueInputsLevel1Member", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel2Member": { "auth_ref": [ "r341", "r342", "r347", "r348", "r457", "r521" ], "lang": { "en-US": { "role": { "documentation": "Inputs other than quoted prices included within level 1 that are observable for an asset or liability, either directly or indirectly, including, but not limited to, quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in inactive markets.", "label": "Fair Value, Inputs, Level 2 [Member]", "terseLabel": "Level 2" } } }, "localname": "FairValueInputsLevel2Member", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel3Member": { "auth_ref": [ "r341", "r342", "r343", "r344", "r345", "r346", "r347", "r348", "r457", "r522" ], "lang": { "en-US": { "role": { "documentation": "Unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.", "label": "Fair Value, Inputs, Level 3 [Member]", "terseLabel": "Level 3" } } }, "localname": "FairValueInputsLevel3Member", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations": { "auth_ref": [ "r456", "r457" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt.", "label": "Subordinated Debt Obligations, Fair Value Disclosure", "terseLabel": "Subordinated debentures" } } }, "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueMeasurementFrequencyDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Measurement frequency.", "label": "Measurement Frequency [Domain]", "terseLabel": "Measurement Frequency [Domain]" } } }, "localname": "FairValueMeasurementFrequencyDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": { "auth_ref": [ "r341", "r342", "r343", "r344", "r345", "r346", "r347", "r348", "r520", "r521", "r522" ], "lang": { "en-US": { "role": { "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value.", "label": "Fair Value Hierarchy and NAV [Domain]", "terseLabel": "Fair Value Hierarchy and NAV [Domain]" } } }, "localname": "FairValueMeasurementsFairValueHierarchyDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsNonrecurringMember": { "auth_ref": [ "r456", "r457", "r460", "r461", "r462", "r466" ], "lang": { "en-US": { "role": { "documentation": "Infrequent fair value measurement. Includes, but is not limited to, fair value adjustment for impairment of asset, liability or equity, not frequently measured at fair value.", "label": "Fair Value, Nonrecurring [Member]", "terseLabel": "Nonrecurring" } } }, "localname": "FairValueMeasurementsNonrecurringMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsRecurringMember": { "auth_ref": [ "r463", "r466" ], "lang": { "en-US": { "role": { "documentation": "Frequent fair value measurement. Includes, but is not limited to, fair value adjustment for impairment of asset, liability or equity, frequently measured at fair value.", "label": "Fair Value, Recurring [Member]", "terseLabel": "Recurring" } } }, "localname": "FairValueMeasurementsRecurringMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueOfFinancialInstrumentsPolicy": { "auth_ref": [ "r94", "r467", "r469" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for determining the fair value of financial instruments.", "label": "Fair Value of Financial Instruments, Policy [Policy Text Block]", "terseLabel": "Fair Value Measurements" } } }, "localname": "FairValueOfFinancialInstrumentsPolicy", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable": { "auth_ref": [ "r420", "r426", "r450" ], "lang": { "en-US": { "role": { "documentation": "Schedule that discloses the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position.", "label": "Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]", "terseLabel": "Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]" } } }, "localname": "FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FederalDepositInsuranceCorporationPremiumExpense": { "auth_ref": [ "r600" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 8.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of expense for Federal Deposit Insurance Corporation (FDIC) insurance.", "label": "Federal Deposit Insurance Corporation Premium Expense", "terseLabel": "FDIC insurance" } } }, "localname": "FederalDepositInsuranceCorporationPremiumExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_FederalFundsPurchasedMember": { "auth_ref": [ "r579" ], "lang": { "en-US": { "role": { "documentation": "Short term borrowing where a bank borrows, at the federal funds rate, from another bank.", "label": "Federal Funds Purchased [Member]", "terseLabel": "Federal funds purchased" } } }, "localname": "FederalFundsPurchasedMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FederalFundsSold": { "auth_ref": [ "r583" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_CashCashEquivalentsAndFederalFundsSold", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount outstanding of funds lent to other depository institutions, securities brokers, or securities dealers in the form of Federal Funds sold; for example, immediately available funds lent under agreements or contracts that mature in one business day or roll over under a continuing contract, regardless of the nature of the transaction or the collateral involved, excluding overnight lending for commercial and industrial purposes. Also include Federal Funds sold under agreements to resell on a gross basis, excluding (1) sales of term Federal Funds, (2) due bills representing purchases of securities or other assets by the reporting bank that have not yet been delivered and similar instruments, (3) resale agreements that mature in more than one business day involving assets other than securities, and (4) yield maintenance dollar repurchase agreements.", "label": "Federal Funds Sold", "terseLabel": "Federal funds sold" } } }, "localname": "FederalFundsSold", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_FederalHomeLoanBankAdvancesMember": { "auth_ref": [ "r579" ], "lang": { "en-US": { "role": { "documentation": "Borrowings from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and also in times of liquidity shortages. The member institution executes a promissory note, which is generally collateralized by government securities to the Federal Reserve or loans.", "label": "Federal Home Loan Bank Advances [Member]", "terseLabel": "FHLB borrowings", "verboseLabel": "Federal Home Loan Bank advances" } } }, "localname": "FederalHomeLoanBankAdvancesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails", "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure": { "auth_ref": [ "r579" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value portion of borrowing from Federal Home Loan Bank (FHLBank).", "label": "Federal Home Loan Bank Borrowings, Fair Value Disclosure", "terseLabel": "Federal Home Loan Bank borrowings" } } }, "localname": "FederalHomeLoanBankBorrowingsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FederalHomeLoanBankStock": { "auth_ref": [ "r615" ], "calculation": { "http://www.midwestone.com/role/OtherAssetsDetails": { "order": 8.0, "parentTag": "us-gaap_OtherAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).", "label": "Federal Home Loan Bank Stock", "terseLabel": "FHLB stock" } } }, "localname": "FederalHomeLoanBankStock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails", "http://www.midwestone.com/role/OtherAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FederalReserveBankAdvancesMember": { "auth_ref": [ "r579" ], "lang": { "en-US": { "role": { "documentation": "Borrowings from the Federal Reserve Bank, which are primarily used to cover shortages in the required reserve balance and also in times of liquidity shortages.", "label": "Federal Reserve Bank Advances [Member]", "terseLabel": "Federal Reserve Bank advances" } } }, "localname": "FederalReserveBankAdvancesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinanceLeaseInterestExpense": { "auth_ref": [ "r497", "r501", "r511" ], "calculation": { "http://www.midwestone.com/role/LeasesLeaseCostDetails": { "order": 3.0, "parentTag": "us-gaap_LeaseCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of interest expense on finance lease liability.", "label": "Finance Lease, Interest Expense", "terseLabel": "Interest on lease liabilities" } } }, "localname": "FinanceLeaseInterestExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseInterestPaymentOnLiability": { "auth_ref": [ "r499", "r505" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest paid on finance lease liability.", "label": "Finance Lease, Interest Payment on Liability", "terseLabel": "Operating cash flows from finance lease" } } }, "localname": "FinanceLeaseInterestPaymentOnLiability", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Finance Lease, Liability, Payment, Due [Abstract]", "terseLabel": "Finance Leases" } } }, "localname": "FinanceLeaseLiabilitiesPaymentsDueAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinanceLeaseLiability": { "auth_ref": [ "r495", "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails": { "order": 2.0, "parentTag": "mofg_LeaseLiability", "weight": 1.0 }, "http://www.midwestone.com/role/LeasesMaturityScheduleDetails_1": { "order": 1.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease.", "label": "Finance Lease, Liability", "terseLabel": "Finance lease liability", "verboseLabel": "Finance leases payable" } } }, "localname": "FinanceLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails", "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails", "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock": { "auth_ref": [ "r510" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position.", "label": "Finance Lease, Liability, Fiscal Year Maturity [Table Text Block]", "terseLabel": "Schedule of Finance Lease Liability Maturity" } } }, "localname": "FinanceLeaseLiabilityMaturityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDue": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.midwestone.com/role/LeasesMaturityScheduleDetails_1": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease.", "label": "Finance Lease, Liability, Payment, Due", "totalLabel": "Total undiscounted lease payment" } } }, "localname": "FinanceLeaseLiabilityPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails": { "order": 6.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finance Lease, Liability, to be Paid, Year One", "terseLabel": "December 31, 2021" } } }, "localname": "FinanceLeaseLiabilityPaymentsDueNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails": { "order": 5.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finance Lease, Liability, to be Paid, Year Five", "terseLabel": "Thereafter" } } }, "localname": "FinanceLeaseLiabilityPaymentsDueYearFive", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails": { "order": 4.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finance Lease, Liability, to be Paid, Year Four", "terseLabel": "December 31, 2024" } } }, "localname": "FinanceLeaseLiabilityPaymentsDueYearFour", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails": { "order": 3.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finance Lease, Liability, to be Paid, Year Three", "terseLabel": "December 31, 2023" } } }, "localname": "FinanceLeaseLiabilityPaymentsDueYearThree", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails": { "order": 2.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finance Lease, Liability, to be Paid, Year Two", "terseLabel": "December 31, 2022" } } }, "localname": "FinanceLeaseLiabilityPaymentsDueYearTwo", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails": { "order": 1.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in remainder of current fiscal year.", "label": "Finance Lease, Liability, to be Paid, Remainder of Fiscal Year", "terseLabel": "December 31, 2020" } } }, "localname": "FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList": { "auth_ref": [ "r496" ], "lang": { "en-US": { "role": { "documentation": "Indicates line item in statement of financial position that includes finance lease liability.", "label": "Finance Lease, Liability, Statement of Financial Position [Extensible List]", "terseLabel": "Finance Lease, Liability, Statement of Financial Position [Extensible List]" } } }, "localname": "FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "extensibleListItemType" }, "us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails_1": { "order": 2.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease.", "label": "Finance Lease, Liability, Undiscounted Excess Amount", "negatedLabel": "Amounts representing interest" } } }, "localname": "FinanceLeaseLiabilityUndiscountedExcessAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeasePrincipalPayments": { "auth_ref": [ "r498", "r505" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow for principal payment on finance lease.", "label": "Finance Lease, Principal Payments", "terseLabel": "Finance cash flows from finance lease" } } }, "localname": "FinanceLeasePrincipalPayments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseRightOfUseAsset": { "auth_ref": [ "r494" ], "calculation": { "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails": { "order": 2.0, "parentTag": "mofg_LeaseRightofUseAsset", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after accumulated amortization, of right-of-use asset from finance lease.", "label": "Finance Lease, Right-of-Use Asset, after Accumulated Amortization", "terseLabel": "Finance lease right-of-use asset" } } }, "localname": "FinanceLeaseRightOfUseAsset", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseRightOfUseAssetAmortization": { "auth_ref": [ "r497", "r501", "r511" ], "calculation": { "http://www.midwestone.com/role/LeasesLeaseCostDetails": { "order": 4.0, "parentTag": "us-gaap_LeaseCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization expense attributable to right-of-use asset from finance lease.", "label": "Finance Lease, Right-of-Use Asset, Amortization", "terseLabel": "Amortization of right-of-use assets" } } }, "localname": "FinanceLeaseRightOfUseAssetAmortization", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList": { "auth_ref": [ "r496" ], "lang": { "en-US": { "role": { "documentation": "Indicates line item in statement of financial position that includes finance lease right-of-use asset.", "label": "Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]", "terseLabel": "Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]" } } }, "localname": "FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "extensibleListItemType" }, "us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent": { "auth_ref": [ "r508", "r511" ], "lang": { "en-US": { "role": { "documentation": "Weighted average discount rate for finance lease calculated at point in time.", "label": "Finance Lease, Weighted Average Discount Rate, Percent", "terseLabel": "Finance lease" } } }, "localname": "FinanceLeaseWeightedAverageDiscountRatePercent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1": { "auth_ref": [ "r507", "r511" ], "lang": { "en-US": { "role": { "documentation": "Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Finance Lease, Weighted Average Remaining Lease Term", "terseLabel": "Finance lease" } } }, "localname": "FinanceLeaseWeightedAverageRemainingLeaseTerm1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "durationItemType" }, "us-gaap_FinancialAssetAcquiredWithCreditDeteriorationMember": { "auth_ref": [ "r199" ], "lang": { "en-US": { "role": { "documentation": "Financial asset acquired with deteriorated credit quality.", "label": "Financial Asset Acquired with Credit Deterioration [Member]", "terseLabel": "Purchased credit impaired loans" } } }, "localname": "FinancialAssetAcquiredWithCreditDeteriorationMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancialInstrumentAxis": { "auth_ref": [ "r213", "r214", "r241", "r247", "r248", "r253", "r262", "r283", "r285", "r288", "r289", "r517", "r518", "r519", "r520", "r521", "r522", "r523", "r524", "r525", "r526", "r527", "r528", "r529", "r531", "r533", "r537", "r538", "r539", "r540", "r541", "r542", "r543", "r544", "r545", "r546", "r547", "r548", "r549", "r550", "r551" ], "lang": { "en-US": { "role": { "documentation": "Information by type of financial instrument.", "label": "Financial Instrument [Axis]", "terseLabel": "Financial Instrument [Axis]" } } }, "localname": "FinancialInstrumentAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails", "http://www.midwestone.com/role/CommitmentsandContingenciesScheduleofCommitmentsDetails", "http://www.midwestone.com/role/DebtSecuritiesAdditionalInformationDetails", "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails", "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails", "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancialInstrumentPerformanceStatusAxis": { "auth_ref": [ "r262" ], "lang": { "en-US": { "role": { "documentation": "Information by category of performance or non-performance status of financial instruments.", "label": "Financial Instrument Performance Status [Axis]", "terseLabel": "Financial Instrument Performance Status [Axis]" } } }, "localname": "FinancialInstrumentPerformanceStatusAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancialInstrumentPerformanceStatusDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Category of performance or non-performance status of financial instruments, including but not limited to, financing receivables, loans, debt, and investments.", "label": "Financial Instrument Performance Status [Domain]", "terseLabel": "Financial Instrument Performance Status [Domain]" } } }, "localname": "FinancialInstrumentPerformanceStatusDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]", "terseLabel": "Financial assets:" } } }, "localname": "FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]", "terseLabel": "Financial liabilities:" } } }, "localname": "FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLosses": { "auth_ref": [ "r173", "r238", "r242", "r246", "r574" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_NotesReceivableNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.", "label": "Financing Receivable, Allowance for Credit Loss", "negatedTerseLabel": "Allowance for credit losses", "periodEndLabel": "Ending balance", "periodStartLabel": "Beginning balance", "terseLabel": "Allowance for credit losses on loans" } } }, "localname": "FinancingReceivableAllowanceForCreditLosses", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets", "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment": { "auth_ref": [ "r177" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.", "label": "Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment", "terseLabel": "Collectively evaluated for impairment" } } }, "localname": "FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1": { "auth_ref": [ "r177" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.", "label": "Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment", "terseLabel": "Individually evaluated for impairment" } } }, "localname": "FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Financing Receivable, Allowance for Credit Loss [Line Items]", "terseLabel": "Financing Receivable, Allowance for Credit Loss [Line Items]" } } }, "localname": "FinancingReceivableAllowanceForCreditLossesLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery": { "auth_ref": [ "r176", "r245", "r270" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in allowance for credit loss on financing receivable from recovery.", "label": "Financing Receivable, Allowance for Credit Loss, Recovery", "terseLabel": "Recoveries" } } }, "localname": "FinancingReceivableAllowanceForCreditLossesRecovery", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Financing Receivable, Allowance for Credit Loss [Roll Forward]", "terseLabel": "Financing Receivable, Allowance for Credit Loss [Roll Forward]" } } }, "localname": "FinancingReceivableAllowanceForCreditLossesRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs": { "auth_ref": [ "r175", "r244", "r270" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of writeoff of financing receivable, charged against allowance for credit loss.", "label": "Financing Receivable, Allowance for Credit Loss, Writeoff", "negatedLabel": "Charge-offs" } } }, "localname": "FinancingReceivableAllowanceForCreditLossesWriteOffs", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment": { "auth_ref": [ "r178" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The balance of financing receivables that were collectively evaluated for impairment.", "label": "Financing Receivable, Collectively Evaluated for Impairment", "terseLabel": "Collectively evaluated for impairment" } } }, "localname": "FinancingReceivableCollectivelyEvaluatedForImpairment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock": { "auth_ref": [ "r187", "r262" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of financing receivables by credit quality indicator. The credit quality indicator is a statistic about the credit quality of financing receivables. Examples include, but not limited to, consumer credit risk scores, credit-rating-agency ratings, an entity's internal credit risk grades, loan-to-value ratios, collateral, collection experience and other internal metrics.", "label": "Financing Receivable Credit Quality Indicators [Table Text Block]", "terseLabel": "Schedule of Credit Quality Indicator" } } }, "localname": "FinancingReceivableCreditQualityIndicatorsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FinancingReceivableImpairedLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Financing Receivable, Impaired [Line Items]", "terseLabel": "Financing Receivable, Impaired" } } }, "localname": "FinancingReceivableImpairedLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment": { "auth_ref": [ "r178" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The balance of financing receivables that were individually evaluated for impairment.", "label": "Financing Receivable, Individually Evaluated for Impairment", "terseLabel": "Individually evaluated for impairment" } } }, "localname": "FinancingReceivableIndividuallyEvaluatedForImpairment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableModificationsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Financing Receivable, Troubled Debt Restructuring [Line Items]", "terseLabel": "Financing Receivable, Modifications" } } }, "localname": "FinancingReceivableModificationsLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableModificationsNumberOfContracts2": { "auth_ref": [ "r189" ], "lang": { "en-US": { "role": { "documentation": "Number of financing receivables that have been modified by troubled debt restructurings.", "label": "Financing Receivable, Modifications, Number of Contracts", "terseLabel": "Number of Contracts" } } }, "localname": "FinancingReceivableModificationsNumberOfContracts2", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "integerItemType" }, "us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2": { "auth_ref": [ "r189" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after troubled debt restructuring, of modified financing receivable.", "label": "Financing Receivable, Troubled Debt Restructuring, Postmodification", "terseLabel": "Post-Modification Outstanding Recorded Investment" } } }, "localname": "FinancingReceivableModificationsPostModificationRecordedInvestment2", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2": { "auth_ref": [ "r189" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, before troubled debt restructuring, of financing receivable to be modified.", "label": "Financing Receivable, Troubled Debt Restructuring, Premodification", "terseLabel": "Pre-Modification Outstanding Recorded Investment" } } }, "localname": "FinancingReceivableModificationsPreModificationRecordedInvestment2", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableModificationsRecordedInvestment": { "auth_ref": [ "r189", "r201" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable modified as troubled debt restructuring.", "label": "Financing Receivable, Troubled Debt Restructuring", "terseLabel": "Troubled Debt Restructurings" } } }, "localname": "FinancingReceivableModificationsRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1": { "auth_ref": [ "r190" ], "lang": { "en-US": { "role": { "documentation": "Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.", "label": "Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts", "terseLabel": "TDR, subsequent to restructure" } } }, "localname": "FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "integerItemType" }, "us-gaap_FinancingReceivableNonaccrualInterestIncome": { "auth_ref": [ "r250" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest income on financing receivable on nonaccrual status.", "label": "Financing Receivable, Nonaccrual, Interest Income", "terseLabel": "Interest Income Recognized on Nonaccrual" } } }, "localname": "FinancingReceivableNonaccrualInterestIncome", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableNonaccrualNoAllowance": { "auth_ref": [ "r252" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable on nonaccrual status with no allowance for credit loss.", "label": "Financing Receivable, Nonaccrual, No Allowance", "terseLabel": "Nonaccrual with no Allowance for Credit Losses" } } }, "localname": "FinancingReceivableNonaccrualNoAllowance", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear": { "auth_ref": [ "r263", "r270" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable originated more than five years prior to current fiscal year.", "label": "Financing Receivable, Originated, More than Five Years before Current Fiscal Year", "terseLabel": "Prior" } } }, "localname": "FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear": { "auth_ref": [ "r263", "r270" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable originated four years prior to current fiscal year.", "label": "Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year", "terseLabel": "2016" } } }, "localname": "FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear": { "auth_ref": [ "r263", "r270" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable originated in current fiscal year.", "label": "Financing Receivable, Year One, Originated, Current Fiscal Year", "terseLabel": "2020" } } }, "localname": "FinancingReceivableOriginatedInCurrentFiscalYear", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear": { "auth_ref": [ "r263", "r270" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable originated in fiscal year prior to current fiscal year.", "label": "Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year", "terseLabel": "2019" } } }, "localname": "FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear": { "auth_ref": [ "r263", "r270" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable originated three years prior to current fiscal year.", "label": "Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year", "terseLabel": "2017" } } }, "localname": "FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear": { "auth_ref": [ "r263", "r270" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable originated two years prior to current fiscal year.", "label": "Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year", "terseLabel": "2018" } } }, "localname": "FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivablePortfolioSegmentAxis": { "auth_ref": [ "r241", "r247", "r264" ], "lang": { "en-US": { "role": { "documentation": "Information by the level at which an entity develops and documents a systematic methodology to determine its allowance for credit losses.", "label": "Financing Receivable Portfolio Segment [Axis]", "terseLabel": "Financing Receivable Portfolio Segment [Axis]" } } }, "localname": "FinancingReceivablePortfolioSegmentAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivablePortfolioSegmentDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Level at which an entity develops and documents a systematic methodology to determine its allowance for credit losses.", "label": "Financing Receivable Portfolio Segment [Domain]", "terseLabel": "Financing Receivable Portfolio Segment [Domain]" } } }, "localname": "FinancingReceivablePortfolioSegmentDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate": { "auth_ref": [ "r256" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails": { "order": 1.0, "parentTag": "us-gaap_FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of allowance for credit loss at acquisition date of financing receivable purchased with credit deterioration.", "label": "Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date", "terseLabel": "Allowance for credit losses" } } }, "localname": "FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivablePurchasedWithCreditDeteriorationAmountAtParValue": { "auth_ref": [ "r257" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails": { "order": 2.0, "parentTag": "us-gaap_FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount at par value of financing receivable purchased with credit deterioration.", "label": "Financing Receivable, Purchased with Credit Deterioration, Amount at Par Value", "terseLabel": "PCD assets", "verboseLabel": "Carrying amount" } } }, "localname": "FinancingReceivablePurchasedWithCreditDeteriorationAmountAtParValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice": { "auth_ref": [ "r255" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount at purchase price of financing receivable purchased with credit deterioration.", "label": "Financing Receivable, Purchased with Credit Deterioration, Amount at Purchase Price", "totalLabel": "Carrying amount, net of allowance for credit losses" } } }, "localname": "FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing": { "auth_ref": [ "r193", "r251", "r271" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable 90 days or more past due and still accruing.", "label": "Financing Receivable, 90 Days or More Past Due, Still Accruing", "terseLabel": "90 Days or More Past Due And Accruing", "verboseLabel": "90 Days or More Past Due And Accruing" } } }, "localname": "FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis": { "auth_ref": [ "r188", "r194", "r195", "r248", "r253", "r262", "r265", "r266", "r270", "r271" ], "lang": { "en-US": { "role": { "documentation": "Information by class of financing receivable determined on the basis of initial measurement attribute, risk characteristics and method of monitoring and assessing credit risk.", "label": "Class of Financing Receivable [Axis]", "terseLabel": "Class of Financing Receivable [Axis]" } } }, "localname": "FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Financing receivables determined on the basis of initial measurement attribute, risk characteristics and method of monitoring and assessing credit risk.", "label": "Class of Financing Receivable [Domain]", "terseLabel": "Class of Financing Receivable [Domain]", "verboseLabel": "Class of Financing Receivable [Domain]" } } }, "localname": "FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentCurrent": { "auth_ref": [ "r195", "r248", "r271" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails": { "order": 2.0, "parentTag": "us-gaap_NotesReceivableGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable not past due.", "label": "Financing Receivable, Not Past Due", "terseLabel": "Loans current" } } }, "localname": "FinancingReceivableRecordedInvestmentCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Financing Receivable, Credit Quality Indicator [Line Items]", "terseLabel": "Financing Receivable, Recorded Investment" } } }, "localname": "FinancingReceivableRecordedInvestmentLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus": { "auth_ref": [ "r192", "r249" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable on nonaccrual status.", "label": "Financing Receivable, Nonaccrual", "terseLabel": "Nonaccrual" } } }, "localname": "FinancingReceivableRecordedInvestmentNonaccrualStatus", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentPastDue": { "auth_ref": [ "r195", "r248", "r271" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails": { "order": 1.0, "parentTag": "us-gaap_NotesReceivableGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable past due.", "label": "Financing Receivable, Past Due", "terseLabel": "Loans past due" } } }, "localname": "FinancingReceivableRecordedInvestmentPastDue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Financing Receivable, Past Due [Line Items]", "terseLabel": "Financing Receivable, Recorded Investment, Past Due" } } }, "localname": "FinancingReceivableRecordedInvestmentPastDueLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableRevolving": { "auth_ref": [ "r263", "r270" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of financing receivable that can be withdrawn, repaid and redrawn.", "label": "Financing Receivable, Revolving", "terseLabel": "Revolving Loans" } } }, "localname": "FinancingReceivableRevolving", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinancingReceivables30To59DaysPastDueMember": { "auth_ref": [ "r271" ], "lang": { "en-US": { "role": { "documentation": "Financial asset more than 29 days past due but fewer than 60 days past due.", "label": "Financial Asset, 30 to 59 Days Past Due [Member]", "terseLabel": "30 - 59 Days Past Due" } } }, "localname": "FinancingReceivables30To59DaysPastDueMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivables60To89DaysPastDueMember": { "auth_ref": [ "r271" ], "lang": { "en-US": { "role": { "documentation": "Financial asset more than 59 days past due but fewer than 90 days past due.", "label": "Financial Asset, 60 to 89 Days Past Due [Member]", "terseLabel": "60 - 89 Days Past Due" } } }, "localname": "FinancingReceivables60To89DaysPastDueMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember": { "auth_ref": [ "r271" ], "lang": { "en-US": { "role": { "documentation": "Financial asset equal to or greater than 90 days past due.", "label": "Financial Asset, Equal to or Greater than 90 Days Past Due [Member]", "terseLabel": "90 Days or More Past Due" } } }, "localname": "FinancingReceivablesEqualToGreaterThan90DaysPastDueMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancingReceivablesPeriodPastDueAxis": { "auth_ref": [ "r248", "r271" ], "lang": { "en-US": { "role": { "documentation": "Information by time period financial asset is past due.", "label": "Financial Asset, Period Past Due [Axis]", "terseLabel": "Financial Asset, Period Past Due [Axis]" } } }, "localname": "FinancingReceivablesPeriodPastDueAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivablesPeriodPastDueDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Period in which financial asset is past due. Element name and standard label in Financial Asset, [numeric lower end] to [numeric higher end] [date measure] Past Due [Member] or Financial Asset, Greater Than [low end numeric value] [date measure] Past Due [Member] or Financial Asset, Less Than [high end numeric value] [date measure] Past Due [Member] formats.", "label": "Financial Asset, Period Past Due [Domain]", "terseLabel": "Financial Asset, Period Past Due [Domain]" } } }, "localname": "FinancingReceivablesPeriodPastDueDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization": { "auth_ref": [ "r302" ], "calculation": { "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails": { "order": 1.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Finite-Lived Intangible Assets, Accumulated Amortization", "negatedTerseLabel": "Accumulated Amortization" } } }, "localname": "FiniteLivedIntangibleAssetsAccumulatedAmortization", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths": { "auth_ref": [ "r304" ], "calculation": { "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails": { "order": 5.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finite-Lived Intangible Asset, Expected Amortization, Year One", "terseLabel": "2021" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails": { "order": 1.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in remainder of current fiscal year.", "label": "Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year", "terseLabel": "2020" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive": { "auth_ref": [ "r304" ], "calculation": { "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails": { "order": 6.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Five", "terseLabel": "Thereafter" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearFive", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour": { "auth_ref": [ "r304" ], "calculation": { "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails": { "order": 4.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Four", "terseLabel": "2024" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearFour", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree": { "auth_ref": [ "r304" ], "calculation": { "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails": { "order": 2.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Three", "terseLabel": "2023" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearThree", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo": { "auth_ref": [ "r304" ], "calculation": { "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails": { "order": 3.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Two", "terseLabel": "2022" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis": { "auth_ref": [ "r298", "r299", "r302", "r306", "r554", "r561" ], "lang": { "en-US": { "role": { "documentation": "Information by major type or class of finite-lived intangible assets.", "label": "Finite-Lived Intangible Assets by Major Class [Axis]", "terseLabel": "Finite-Lived Intangible Assets by Major Class [Axis]" } } }, "localname": "FiniteLivedIntangibleAssetsByMajorClassAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows", "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails", "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseCurrentAndFiveSucceedingFiscalYearsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]", "terseLabel": "Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]" } } }, "localname": "FiniteLivedIntangibleAssetsFutureAmortizationExpenseCurrentAndFiveSucceedingFiscalYearsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsGross": { "auth_ref": [ "r302", "r561" ], "calculation": { "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails": { "order": 2.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Finite-Lived Intangible Assets, Gross", "terseLabel": "Gross Carrying Amount" } } }, "localname": "FiniteLivedIntangibleAssetsGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Finite-Lived Intangible Assets [Line Items]", "terseLabel": "Finite-Lived Intangible Assets [Line Items]" } } }, "localname": "FiniteLivedIntangibleAssetsLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails", "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain": { "auth_ref": [ "r298", "r301" ], "lang": { "en-US": { "role": { "documentation": "The major class of finite-lived intangible asset (for example, patents, trademarks, copyrights, etc.) A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.", "label": "Finite-Lived Intangible Assets, Major Class Name [Domain]", "terseLabel": "Finite-Lived Intangible Assets, Major Class Name [Domain]" } } }, "localname": "FiniteLivedIntangibleAssetsMajorClassNameDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows", "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails", "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FiniteLivedIntangibleAssetsNet": { "auth_ref": [ "r302", "r554" ], "calculation": { "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Finite-Lived Intangible Assets, Net", "totalLabel": "Net Carrying Amount" } } }, "localname": "FiniteLivedIntangibleAssetsNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails", "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainLossOnSaleOfBusiness": { "auth_ref": [ "r85", "r408" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.", "label": "Gain (Loss) on Disposition of Business", "terseLabel": "Gain on disposition of business" } } }, "localname": "GainLossOnSaleOfBusiness", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainLossOnSaleOfPropertyPlantEquipment": { "auth_ref": [ "r85" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 14.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.", "label": "Gain (Loss) on Disposition of Property Plant Equipment", "negatedTerseLabel": "Net loss on sale of premises and equipment" } } }, "localname": "GainLossOnSaleOfPropertyPlantEquipment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainLossOnSalesOfLoansNet": { "auth_ref": [ "r85", "r596", "r645" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The net gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes.", "label": "Gain (Loss) on Sales of Loans, Net", "negatedTerseLabel": "Net gain on sale of loans held for sale" } } }, "localname": "GainLossOnSalesOfLoansNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_GeographicDistributionAxis": { "auth_ref": [ "r268", "r608", "r609" ], "lang": { "en-US": { "role": { "documentation": "Information by geographic distribution of business activity identified as either domestic or foreign. Excludes names of countries, states and provinces, and cities.", "label": "Geographic Distribution [Axis]", "terseLabel": "Geographical [Axis]" } } }, "localname": "GeographicDistributionAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_GeographicDistributionDomain": { "auth_ref": [ "r608", "r609" ], "lang": { "en-US": { "role": { "documentation": "Allocation of business activity identified as domestic or foreign. Excludes names of countries, states and provinces, and cities.", "label": "Geographic Distribution [Domain]", "terseLabel": "Geographic Distribution [Domain]" } } }, "localname": "GeographicDistributionDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_Goodwill": { "auth_ref": [ "r291", "r292", "r567" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 5.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill", "periodEndLabel": "Total goodwill, end of period", "periodStartLabel": "Goodwill, beginning of period", "terseLabel": "Goodwill" } } }, "localname": "Goodwill", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets", "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows", "http://www.midwestone.com/role/GoodwillandIntangibleAssetsGoodwillandAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Goodwill and Intangible Assets Disclosure [Abstract]", "terseLabel": "Goodwill and Intangible Assets Disclosure [Abstract]" } } }, "localname": "GoodwillAndIntangibleAssetsDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock": { "auth_ref": [ "r308" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for goodwill and intangible assets.", "label": "Goodwill and Intangible Assets Disclosure [Text Block]", "terseLabel": "Goodwill and Intangible Assets" } } }, "localname": "GoodwillAndIntangibleAssetsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssets" ], "xbrltype": "textBlockItemType" }, "us-gaap_GoodwillPeriodIncreaseDecrease": { "auth_ref": [ "r294" ], "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill, Period Increase (Decrease)", "terseLabel": "Fair value adjustment" } } }, "localname": "GoodwillPeriodIncreaseDecrease", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsGoodwillandAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillPurchaseAccountingAdjustments": { "auth_ref": [ "r293", "r393" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill, Purchase Accounting Adjustments", "terseLabel": "Goodwill adjustments" } } }, "localname": "GoodwillPurchaseAccountingAdjustments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Goodwill [Roll Forward]", "terseLabel": "Goodwill [Roll Forward]" } } }, "localname": "GoodwillRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsGoodwillandAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_HedgedAssetFairValueHedge": { "auth_ref": [ "r438" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of asset hedged in fair value hedging relationship.", "label": "Hedged Asset, Fair Value Hedge", "terseLabel": "Carrying Amount of the Hedged Assets" } } }, "localname": "HedgedAssetFairValueHedge", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingHedgedItemsinFairValueHedgingRelationshipDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_HedgedAssetFairValueHedgeCumulativeIncreaseDecrease": { "auth_ref": [ "r439" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cumulative increase (decrease) in fair value of hedged asset in fair value hedge, attributable to hedged risk.", "label": "Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)", "terseLabel": "Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset" } } }, "localname": "HedgedAssetFairValueHedgeCumulativeIncreaseDecrease", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingHedgedItemsinFairValueHedgingRelationshipDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_HedgingDesignationAxis": { "auth_ref": [ "r418", "r437" ], "lang": { "en-US": { "role": { "documentation": "Information by designation of purpose of derivative instrument.", "label": "Hedging Designation [Axis]", "terseLabel": "Hedging Designation [Axis]" } } }, "localname": "HedgingDesignationAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingHedgedItemsinFairValueHedgingRelationshipDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofOtherDerivativesNotDesignatedasHedgingInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_HedgingDesignationDomain": { "auth_ref": [ "r418" ], "lang": { "en-US": { "role": { "documentation": "Designation of purpose of derivative instrument.", "label": "Hedging Designation [Domain]", "terseLabel": "Hedging Designation [Domain]" } } }, "localname": "HedgingDesignationDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingHedgedItemsinFairValueHedgingRelationshipDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofOtherDerivativesNotDesignatedasHedgingInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_HedgingRelationshipDomain": { "auth_ref": [ "r418" ], "lang": { "en-US": { "role": { "documentation": "Nature or intent of a hedge.", "label": "Hedging Relationship [Domain]", "terseLabel": "Hedging Relationship [Domain]" } } }, "localname": "HedgingRelationshipDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingHedgedItemsinFairValueHedgingRelationshipDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment": { "auth_ref": [ "r183", "r186" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.", "label": "Impaired Financing Receivable, Average Recorded Investment", "totalLabel": "Average Recorded Investment" } } }, "localname": "ImpairedFinancingReceivableAverageRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableAverageRecordedInvestmentAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Impaired Financing Receivable, Average Recorded Investment [Abstract]", "terseLabel": "Average Recorded Investment" } } }, "localname": "ImpairedFinancingReceivableAverageRecordedInvestmentAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod": { "auth_ref": [ "r184" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.", "label": "Impaired Financing Receivable, Interest Income, Accrual Method", "totalLabel": "Interest Income Recognized" } } }, "localname": "ImpairedFinancingReceivableInterestIncomeAccrualMethod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethodAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]", "terseLabel": "Interest Income Recognized" } } }, "localname": "ImpairedFinancingReceivableInterestIncomeAccrualMethodAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ImpairedFinancingReceivableRecordedInvestment": { "auth_ref": [ "r180" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.", "label": "Impaired Financing Receivable, Recorded Investment", "totalLabel": "Recorded Investment" } } }, "localname": "ImpairedFinancingReceivableRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableRecordedInvestmentAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Impaired Financing Receivable, Recorded Investment [Abstract]", "terseLabel": "Recorded Investment" } } }, "localname": "ImpairedFinancingReceivableRecordedInvestmentAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ImpairedFinancingReceivableRelatedAllowance": { "auth_ref": [ "r181" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of allowance for credit losses related to recorded investment.", "label": "Impaired Financing Receivable, Related Allowance", "terseLabel": "Related Allowance" } } }, "localname": "ImpairedFinancingReceivableRelatedAllowance", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance": { "auth_ref": [ "r182" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.", "label": "Impaired Financing Receivable, Unpaid Principal Balance", "totalLabel": "Unpaid Principal Balance" } } }, "localname": "ImpairedFinancingReceivableUnpaidPrincipalBalance", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalanceAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Impaired Financing Receivable, Unpaid Principal Balance [Abstract]", "terseLabel": "Unpaid Principal Balance" } } }, "localname": "ImpairedFinancingReceivableUnpaidPrincipalBalanceAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment": { "auth_ref": [ "r183", "r186" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails": { "order": 1.0, "parentTag": "us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses.", "label": "Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment", "terseLabel": "Impaired financing receivable, with no related allowance, average recorded investment" } } }, "localname": "ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod": { "auth_ref": [ "r184" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails": { "order": 2.0, "parentTag": "us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest income, recognized on accrual basis, on financing receivables that are recognized as impaired, for which there is no related allowance for credit losses.", "label": "Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method", "terseLabel": "Impaired financing receivable, with no related allowance, interest income, accrual method" } } }, "localname": "ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment": { "auth_ref": [ "r180" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails": { "order": 2.0, "parentTag": "us-gaap_ImpairedFinancingReceivableRecordedInvestment", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.", "label": "Impaired Financing Receivable, with No Related Allowance, Recorded Investment", "terseLabel": "Impaired financing receivable, with no related allowance, recorded investment" } } }, "localname": "ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance": { "auth_ref": [ "r182" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails": { "order": 2.0, "parentTag": "us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of unpaid principal balance of impaired financing receivables for which there is no related allowance for credit losses.", "label": "Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance", "terseLabel": "Impaired financing receivable, with no related allowance, unpaid principal balance" } } }, "localname": "ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment": { "auth_ref": [ "r183", "r186" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails": { "order": 2.0, "parentTag": "us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of average investment of impaired financing receivables for which there is a related allowance for credit losses.", "label": "Impaired Financing Receivable, with Related Allowance, Average Recorded Investment", "terseLabel": "Impaired financing receivable, with related allowance, average recorded investment" } } }, "localname": "ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod": { "auth_ref": [ "r184" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails": { "order": 1.0, "parentTag": "us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest income, recognized on accrual basis, on financing receivables, for which there is a related allowance for credit losses and are recognized as impaired.", "label": "Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method", "terseLabel": "Impaired financing receivable, with related allowance, interest income, accrual method" } } }, "localname": "ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment": { "auth_ref": [ "r180" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails": { "order": 1.0, "parentTag": "us-gaap_ImpairedFinancingReceivableRecordedInvestment", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.", "label": "Impaired Financing Receivable, with Related Allowance, Recorded Investment", "terseLabel": "Impaired financing receivable, with related allowance, recorded investment" } } }, "localname": "ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance": { "auth_ref": [ "r182" ], "calculation": { "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails": { "order": 1.0, "parentTag": "us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses.", "label": "Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance", "terseLabel": "Impaired financing receivable, with related allowance, unpaid principal balance" } } }, "localname": "ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairedFinancingReceivablesTableTextBlock": { "auth_ref": [ "r185" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of impaired financing receivables.", "label": "Impaired Financing Receivables [Table Text Block]", "terseLabel": "Schedule of Impaired Receivables" } } }, "localname": "ImpairedFinancingReceivablesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ImpairmentOfRealEstate": { "auth_ref": [ "r85", "r310" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 9.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The charge against earnings in the period to reduce the carrying amount of real property to fair value.", "label": "Impairment of Real Estate", "terseLabel": "Writedown of foreclosed assets" } } }, "localname": "ImpairmentOfRealEstate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest": { "auth_ref": [ "r58", "r156", "r163", "r166", "r167", "r169", "r562", "r586", "r609", "r643" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 1.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.", "label": "Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest", "totalLabel": "Income before income tax expense" } } }, "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeStatementAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Income Statement [Abstract]", "terseLabel": "Income Statement [Abstract]" } } }, "localname": "IncomeStatementAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis": { "auth_ref": [ "r349", "r352" ], "lang": { "en-US": { "role": { "documentation": "Information by name of disposal group.", "label": "Disposal Group Name [Axis]", "terseLabel": "Disposal Group Name [Axis]" } } }, "localname": "IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementLocationAxis": { "auth_ref": [ "r311" ], "lang": { "en-US": { "role": { "documentation": "Information by location in the income statement.", "label": "Income Statement Location [Axis]", "terseLabel": "Income Statement Location [Axis]" } } }, "localname": "IncomeStatementLocationAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofOtherDerivativesNotDesignatedasHedgingInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementLocationDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Location in the income statement.", "label": "Income Statement Location [Domain]", "terseLabel": "Income Statement Location [Domain]" } } }, "localname": "IncomeStatementLocationDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofOtherDerivativesNotDesignatedasHedgingInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IncomeTaxDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Income Tax Disclosure [Abstract]", "terseLabel": "Income Tax Disclosure [Abstract]" } } }, "localname": "IncomeTaxDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxDisclosureTextBlock": { "auth_ref": [ "r371", "r372", "r373", "r382", "r388", "r390", "r391", "r392" ], "lang": { "en-US": { "role": { "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.", "label": "Income Tax Disclosure [Text Block]", "terseLabel": "Income Taxes" } } }, "localname": "IncomeTaxDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxes" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeTaxExpenseBenefit": { "auth_ref": [ "r96", "r119", "r120", "r155", "r369", "r383", "r389", "r644" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 2.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": -1.0 }, "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.", "label": "Income Tax Expense (Benefit)", "totalLabel": "Total income tax expense", "verboseLabel": "Income tax expense" } } }, "localname": "IncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome", "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Effective Income Tax Rate Reconciliation, Amount [Abstract]", "terseLabel": "Amount" } } }, "localname": "IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate": { "auth_ref": [ "r370" ], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": 1.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.", "label": "Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount", "terseLabel": "Income tax based on statutory rate" } } }, "localname": "IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationNondeductibleExpense": { "auth_ref": [ "r370" ], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": 5.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.", "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount", "terseLabel": "Non-deductible acquisition expenses" } } }, "localname": "IncomeTaxReconciliationNondeductibleExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationOtherAdjustments": { "auth_ref": [ "r370" ], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": 7.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.", "label": "Effective Income Tax Rate Reconciliation, Other Adjustments, Amount", "terseLabel": "Other" } } }, "localname": "IncomeTaxReconciliationOtherAdjustments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes": { "auth_ref": [ "r370" ], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": 4.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit).", "label": "Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount", "terseLabel": "State income taxes, net of federal income tax benefit" } } }, "localname": "IncomeTaxReconciliationStateAndLocalIncomeTaxes", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationTaxExemptIncome": { "auth_ref": [ "r370" ], "calculation": { "http://www.midwestone.com/role/IncomeTaxesDetails": { "order": 2.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income (loss) exempt from income taxes.", "label": "Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount", "negatedTerseLabel": "Tax-exempt interest" } } }, "localname": "IncomeTaxReconciliationTaxExemptIncome", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxesPaidNet": { "auth_ref": [ "r89" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.", "label": "Income Taxes Paid, Net", "terseLabel": "Cash paid during the period for income taxes" } } }, "localname": "IncomeTaxesPaidNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxesReceivable": { "auth_ref": [ "r25", "r577", "r638" ], "calculation": { "http://www.midwestone.com/role/OtherAssetsDetails": { "order": 3.0, "parentTag": "us-gaap_OtherAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.", "label": "Income Taxes Receivable, Current", "terseLabel": "Federal & state taxes, current" } } }, "localname": "IncomeTaxesReceivable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/OtherAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities": { "auth_ref": [ "r84" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 11.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.", "label": "Increase (Decrease) in Accounts Payable and Accrued Liabilities", "terseLabel": "Other liabilities" } } }, "localname": "IncreaseDecreaseInAccountsPayableAndAccruedLiabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInDeposits": { "auth_ref": [ "r88", "r607" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The net cash inflow or outflow for the increase (decrease) in the beginning and end of period deposits balances.", "label": "Increase (Decrease) in Deposits", "terseLabel": "Deposits" } } }, "localname": "IncreaseDecreaseInDeposits", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOtherOperatingAssets": { "auth_ref": [ "r84" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in operating assets classified as other.", "label": "Increase (Decrease) in Other Operating Assets", "negatedTerseLabel": "Other assets" } } }, "localname": "IncreaseDecreaseInOtherOperatingAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill": { "auth_ref": [ "r305" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.", "label": "Indefinite-lived Intangible Assets (Excluding Goodwill)", "terseLabel": "Indefinite-lived trade name intangible" } } }, "localname": "IndefiniteLivedIntangibleAssetsExcludingGoodwill", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InformationTechnologyAndDataProcessing": { "auth_ref": [ "r64" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 5.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of expenses incurred in the period for information technology and data processing products and services.", "label": "Information Technology and Data Processing", "terseLabel": "Data processing" } } }, "localname": "InformationTechnologyAndDataProcessing", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_InsuranceCommissionsAndFees": { "auth_ref": [ "r595", "r646" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 6.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Income from agency and brokerage operations (includes sales of annuities and supplemental contracts); service charges, commissions, and fees from the sale of insurance and related services; and management fees from separate accounts, deferred annuities, and universal life products.", "label": "Insurance Commissions and Fees", "terseLabel": "Insurance commissions" } } }, "localname": "InsuranceCommissionsAndFees", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_IntangibleAssetsNetExcludingGoodwill": { "auth_ref": [ "r296", "r300" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 6.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.", "label": "Intangible Assets, Net (Excluding Goodwill)", "terseLabel": "Other intangible assets, net" } } }, "localname": "IntangibleAssetsNetExcludingGoodwill", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestAndDividendIncomeOperating": { "auth_ref": [ "r591" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 1.0, "parentTag": "us-gaap_InterestIncomeExpenseNet", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein.", "label": "Interest and Dividend Income, Operating", "totalLabel": "Total interest income" } } }, "localname": "InterestAndDividendIncomeOperating", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestAndDividendIncomeOperatingAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Interest and Dividend Income, Operating [Abstract]", "terseLabel": "Interest income" } } }, "localname": "InterestAndDividendIncomeOperatingAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "stringItemType" }, "us-gaap_InterestAndFeeIncomeLoansAndLeases": { "auth_ref": [ "r590" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 1.0, "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases.", "label": "Interest and Fee Income, Loans and Leases", "terseLabel": "Loans, including fees" } } }, "localname": "InterestAndFeeIncomeLoansAndLeases", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestBearingDepositLiabilities": { "auth_ref": [ "r578" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_Deposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The aggregate of all domestic and foreign interest-bearing deposit liabilities.", "label": "Interest-bearing Deposit Liabilities", "terseLabel": "Interest bearing deposits" } } }, "localname": "InterestBearingDepositLiabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestBearingDepositsInBanks": { "auth_ref": [ "r564", "r582" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_CashCashEquivalentsAndFederalFundsSold", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet.", "label": "Interest-bearing Deposits in Banks and Other Financial Institutions", "terseLabel": "Interest earning deposits in banks" } } }, "localname": "InterestBearingDepositsInBanks", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestBearingDomesticDepositChecking": { "auth_ref": [ "r578" ], "calculation": { "http://www.midwestone.com/role/DepositsDetails": { "order": 2.0, "parentTag": "us-gaap_Deposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest-bearing domestic checking deposit liabilities.", "label": "Interest-bearing Domestic Deposit, Checking", "terseLabel": "Interest checking deposits", "verboseLabel": "Interest-bearing deposits" } } }, "localname": "InterestBearingDomesticDepositChecking", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DepositsDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpense": { "auth_ref": [ "r57", "r153", "r485", "r488", "r606" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 2.0, "parentTag": "us-gaap_InterestIncomeExpenseNet", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of the cost of borrowed funds accounted for as interest expense.", "label": "Interest Expense", "terseLabel": "Interest expense", "totalLabel": "Total interest expense" } } }, "localname": "InterestExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpenseAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Interest Expense [Abstract]", "terseLabel": "Interest expense" } } }, "localname": "InterestExpenseAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "stringItemType" }, "us-gaap_InterestExpenseDeposits": { "auth_ref": [ "r603" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 1.0, "parentTag": "us-gaap_InterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Aggregate amount of interest expense on all deposits.", "label": "Interest Expense, Deposits", "terseLabel": "Deposits" } } }, "localname": "InterestExpenseDeposits", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpenseLongTermDebt": { "auth_ref": [ "r605" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 3.0, "parentTag": "us-gaap_InterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Aggregate amount of interest paid or due on all long-term debt.", "label": "Interest Expense, Long-term Debt", "terseLabel": "Long-term debt" } } }, "localname": "InterestExpenseLongTermDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpenseMember": { "auth_ref": [ "r435" ], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption encompassing interest expense.", "label": "Interest Expense [Member]", "terseLabel": "Interest Expense" } } }, "localname": "InterestExpenseMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_InterestExpenseShortTermBorrowings": { "auth_ref": [ "r604" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 2.0, "parentTag": "us-gaap_InterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The aggregate interest expense incurred on short-term borrowings including commercial paper and Federal funds purchased and securities sold under agreements to repurchase.", "label": "Interest Expense, Short-term Borrowings", "terseLabel": "Short-term borrowings" } } }, "localname": "InterestExpenseShortTermBorrowings", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss": { "auth_ref": [ "r594" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 1.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest income or expense, including any amortization and accretion (as applicable) of discounts and premiums, including consideration of the provisions for loan, lease, credit, and other related losses.", "label": "Interest Income (Expense), after Provision for Loan Loss", "totalLabel": "Net interest income after credit loss expense" } } }, "localname": "InterestIncomeExpenseAfterProvisionForLoanLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestIncomeExpenseNet": { "auth_ref": [ "r592" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 1.0, "parentTag": "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The net amount of operating interest income (expense).", "label": "Interest Income (Expense), Net", "terseLabel": "Interest income", "totalLabel": "Net interest income" } } }, "localname": "InterestIncomeExpenseNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestIncomeMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption in which reported facts about interest income have been included.", "label": "Interest Income [Member]", "terseLabel": "Interest Income" } } }, "localname": "InterestIncomeMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_InterestIncomeSecuritiesTaxExempt": { "auth_ref": [ "r601" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 3.0, "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities exempt from state, federal and other income tax.", "label": "Interest Income, Securities, Operating, Tax Exempt", "terseLabel": "Tax-exempt investment securities" } } }, "localname": "InterestIncomeSecuritiesTaxExempt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestIncomeSecuritiesTaxable": { "auth_ref": [ "r601" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 2.0, "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities subject to state, federal and other income tax.", "label": "Interest Income, Securities, Operating, Taxable", "terseLabel": "Taxable investment securities" } } }, "localname": "InterestIncomeSecuritiesTaxable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestPaidNet": { "auth_ref": [ "r77", "r81", "r89" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.", "label": "Interest Paid, Excluding Capitalized Interest, Operating Activities", "terseLabel": "Cash paid during the period for interest" } } }, "localname": "InterestPaidNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet": { "auth_ref": [ "r454" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.", "label": "Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net", "terseLabel": "Interest rate swap contracts, interest income to be reclassified in next 12 months" } } }, "localname": "InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestRateSwapMember": { "auth_ref": [ "r433" ], "lang": { "en-US": { "role": { "documentation": "Forward based contracts in which two parties agree to swap periodic payments that are fixed at the outset of the swap contract with variable payments based on a market interest rate (index rate) over a specified period.", "label": "Interest Rate Swap [Member]", "terseLabel": "Interest rate swaps" } } }, "localname": "InterestRateSwapMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingAdditionalInformationDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingHedgedItemsinFairValueHedgingRelationshipDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofOtherDerivativesNotDesignatedasHedgingInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_InterestReceivable": { "auth_ref": [ "r27" ], "calculation": { "http://www.midwestone.com/role/OtherAssetsDetails": { "order": 6.0, "parentTag": "us-gaap_OtherAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.", "label": "Interest Receivable", "terseLabel": "Interest receivable" } } }, "localname": "InterestReceivable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAdditionalInformationDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails", "http://www.midwestone.com/role/OtherAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestReceivableCurrent": { "auth_ref": [ "r27" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Carrying amount as of the balance sheet date of current interest earned but not received. Also called accrued interest or accrued interest receivable. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.", "label": "Interest Receivable, Current", "terseLabel": "Accrued interest receivable" } } }, "localname": "InterestReceivableCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InternalCreditAssessmentAxis": { "auth_ref": [ "r187", "r262", "r269", "r270", "r319", "r443" ], "lang": { "en-US": { "role": { "documentation": "Information by entity-defined rating.", "label": "Internal Credit Assessment [Axis]", "terseLabel": "Internal Credit Assessment [Axis]" } } }, "localname": "InternalCreditAssessmentAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "stringItemType" }, "us-gaap_InternalCreditAssessmentDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Entity defined credit risk rating.", "label": "Internal Credit Assessment [Domain]", "terseLabel": "Internal Credit Assessment [Domain]" } } }, "localname": "InternalCreditAssessmentDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "domainItemType" }, "us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.", "label": "Investments Classified by Contractual Maturity Date [Table Text Block]", "terseLabel": "Investments Classified by Contractual Maturity Date" } } }, "localname": "InvestmentsClassifiedByContractualMaturityDateTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock": { "auth_ref": [ "r224", "r563", "r614", "r666" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for investments in certain debt and equity securities.", "label": "Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]", "terseLabel": "Debt Securities" } } }, "localname": "InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecurities" ], "xbrltype": "textBlockItemType" }, "us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust": { "auth_ref": [ "r581", "r637" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer.", "label": "Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust", "verboseLabel": "Debt instrument, book value" } } }, "localname": "JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_JuniorSubordinatedDebtMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Borrowing that has a lower priority than senior instruments in event of liquidation of the entity's assets.", "label": "Junior Subordinated Debt [Member]", "terseLabel": "Junior subordinated notes" } } }, "localname": "JuniorSubordinatedDebtMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LaborAndRelatedExpense": { "auth_ref": [ "r62" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 1.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit.", "label": "Labor and Related Expense", "terseLabel": "Compensation and employee benefits" } } }, "localname": "LaborAndRelatedExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_LeaseCost": { "auth_ref": [ "r509", "r511" ], "calculation": { "http://www.midwestone.com/role/LeasesLeaseCostDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of lease cost recognized by lessee for lease contract.", "label": "Lease, Cost", "totalLabel": "Net lease cost" } } }, "localname": "LeaseCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LeaseCostTableTextBlock": { "auth_ref": [ "r509" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.", "label": "Lease, Cost [Table Text Block]", "terseLabel": "Lease Costs and Other Information" } } }, "localname": "LeaseCostTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LeasesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Leases [Abstract]", "terseLabel": "Leases [Abstract]" } } }, "localname": "LeasesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_LesseeFinanceLeasesTextBlock": { "auth_ref": [ "r512" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for finance leases of lessee. Includes, but is not limited to, description of lessee's finance lease and maturity analysis of finance lease liability.", "label": "Lessee, Finance Leases [Text Block]", "terseLabel": "Leases" } } }, "localname": "LesseeFinanceLeasesTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/Leases" ], "xbrltype": "textBlockItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock": { "auth_ref": [ "r510" ], "lang": { "en-US": { "role": { "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.", "label": "Lessee, Operating Lease, Liability, Maturity [Table Text Block]", "terseLabel": "Schedule of Operating Lease Liability Maturity" } } }, "localname": "LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.midwestone.com/role/LeasesMaturityScheduleDetails_1": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease.", "label": "Lessee, Operating Lease, Liability, to be Paid", "totalLabel": "Total undiscounted lease payment" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails_1": { "order": 6.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year One", "terseLabel": "December 31, 2021" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails_1": { "order": 1.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year Five", "terseLabel": "Thereafter" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFive", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails_1": { "order": 3.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year Four", "terseLabel": "December 31, 2024" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFour", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails_1": { "order": 5.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year Three", "terseLabel": "December 31, 2023" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearThree", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails_1": { "order": 2.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year Two", "terseLabel": "December 31, 2022" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails_1": { "order": 4.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.", "label": "Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year", "terseLabel": "December 31, 2020" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": { "auth_ref": [ "r510" ], "calculation": { "http://www.midwestone.com/role/LeasesMaturityScheduleDetails": { "order": 2.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.", "label": "Lessee, Operating Lease, Liability, Undiscounted Excess Amount", "negatedLabel": "Amounts representing interest" } } }, "localname": "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeasesTextBlock": { "auth_ref": [ "r512" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.", "label": "Lessee, Operating Leases [Text Block]", "terseLabel": "Leases" } } }, "localname": "LesseeOperatingLeasesTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/Leases" ], "xbrltype": "textBlockItemType" }, "us-gaap_Liabilities": { "auth_ref": [ "r20", "r95", "r165", "r225", "r405", "r409", "r410", "r476" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.", "label": "Liabilities", "totalLabel": "Total liabilities" } } }, "localname": "Liabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAndStockholdersEquity": { "auth_ref": [ "r14", "r95", "r225", "r476", "r572", "r636" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.", "label": "Liabilities and Equity", "totalLabel": "Total liabilities and shareholders' equity" } } }, "localname": "LiabilitiesAndStockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAndStockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Liabilities and Equity [Abstract]", "terseLabel": "LIABILITIES AND SHAREHOLDERS' EQUITY" } } }, "localname": "LiabilitiesAndStockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue": { "auth_ref": [ "r226" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 8.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The change in cash surrender or contract value during the period which adjusted the amount of premiums paid in determining the expense or income recognized under the contract for the period.", "label": "Life Insurance, Corporate or Bank Owned, Change in Value", "negatedTerseLabel": "Increase in cash surrender value of bank-owned life insurance" } } }, "localname": "LifeInsuranceCorporateOrBankOwnedChangeInValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": { "auth_ref": [ "r17" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.", "label": "Line of Credit Facility, Maximum Borrowing Capacity", "terseLabel": "Unsercured line of credit, maximum borrowing capacity" } } }, "localname": "LineOfCreditFacilityMaximumBorrowingCapacity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity": { "auth_ref": [ "r17" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).", "label": "Line of Credit Facility, Remaining Borrowing Capacity", "terseLabel": "Financing capacity" } } }, "localname": "LineOfCreditFacilityRemainingBorrowingCapacity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time, and under which borrowings outstanding may be either short-term or long-term, depending upon the particulars.", "label": "Line of Credit [Member]", "terseLabel": "Unsecured line of credit" } } }, "localname": "LineOfCreditMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ShortTermBorrowingsDetails", "http://www.midwestone.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LoanRestructuringModificationAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by concessions made to the terms of loan contracts.", "label": "Loan Restructuring Modification [Axis]", "terseLabel": "Loan Restructuring Modification [Axis]" } } }, "localname": "LoanRestructuringModificationAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LoanRestructuringModificationDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Concessions made to the terms of loan contracts, including but not limited to, interest rate reductions, maturity extensions, principal forgiveness, and payment deferral.", "label": "Loan Restructuring Modification [Domain]", "terseLabel": "Loan Restructuring Modification [Domain]" } } }, "localname": "LoanRestructuringModificationDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LoansAndLeasesReceivableDeferredIncome": { "auth_ref": [ "r191", "r198", "r492", "r584" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_NotesReceivableGross", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.", "label": "Loans and Leases Receivable, Deferred Income", "negatedTerseLabel": "Unearned income, net" } } }, "localname": "LoansAndLeasesReceivableDeferredIncome", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableDisclosureLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Loans and Leases Receivable Disclosure [Line Items]", "terseLabel": "Loans held for investment, net of unearned income" } } }, "localname": "LoansAndLeasesReceivableDisclosureLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LoansAndLeasesReceivableGrossCarryingAmount": { "auth_ref": [ "r172" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_NotesReceivableGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.", "label": "Loans and Leases Receivable, Gross", "terseLabel": "Gross loans held for investment" } } }, "localname": "LoansAndLeasesReceivableGrossCarryingAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansAndLeasesReceivableImpairedCommitmentToLend": { "auth_ref": [ "r200" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring.", "label": "Financing Receivable, Troubled Debt Restructuring, Commitment to Lend", "terseLabel": "Loans and leases receivable, impaired, commitment to lend" } } }, "localname": "LoansAndLeasesReceivableImpairedCommitmentToLend", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansHeldForSaleFairValueDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.", "label": "Loans Held-for-sale, Fair Value Disclosure", "terseLabel": "Loans held for sale" } } }, "localname": "LoansHeldForSaleFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock": { "auth_ref": [ "r197" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.", "label": "Loans, Notes, Trade and Other Receivables Disclosure [Text Block]", "terseLabel": "Loans Receivable and the Allowance for Credit Losses" } } }, "localname": "LoansNotesTradeAndOtherReceivablesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLosses" ], "xbrltype": "textBlockItemType" }, "us-gaap_LoansReceivableFairValueDisclosure": { "auth_ref": [ "r197" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.", "label": "Loans Receivable, Fair Value Disclosure", "terseLabel": "Loans held for investment, net" } } }, "localname": "LoansReceivableFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansReceivableHeldForSaleAmount": { "auth_ref": [ "r172", "r669" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, before valuation allowance, of financing receivable classified as held-for-sale.", "label": "Financing Receivable, Held-for-Sale", "terseLabel": "Loans held for sale" } } }, "localname": "LoansReceivableHeldForSaleAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LoansReceivableMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "An amount of money or property, or a portion thereof, leant to a borrower (debtor) in exchange for a promise to repay the amount borrowed plus interest at a date certain in the future.", "label": "Loans Receivable [Member]", "terseLabel": "Loans receivable" } } }, "localname": "LoansReceivableMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LondonInterbankOfferedRateLIBORMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Interest rate at which a bank borrows funds from other banks in the London interbank market.", "label": "London Interbank Offered Rate (LIBOR) [Member]", "terseLabel": "LIBOR" } } }, "localname": "LondonInterbankOfferedRateLIBORMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails", "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LongMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Indicates an ownership position in, or purchase of, a security.", "label": "Long [Member]", "terseLabel": "RPAs - protection purchased" } } }, "localname": "LongMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LongTermDebt": { "auth_ref": [ "r5", "r324", "r571", "r633" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.", "label": "Long-term Debt", "terseLabel": "Long-term debt" } } }, "localname": "LongTermDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Long-term Debt, by Type, Current and Noncurrent [Abstract]", "terseLabel": "Long-term Debt, by Type, Current and Noncurrent [Abstract]" } } }, "localname": "LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_LongTermDebtTextBlock": { "auth_ref": [ "r326" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for long-term debt.", "label": "Long-term Debt [Text Block]", "terseLabel": "Long-Term Debt" } } }, "localname": "LongTermDebtTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebt" ], "xbrltype": "textBlockItemType" }, "us-gaap_LongtermDebtTypeAxis": { "auth_ref": [ "r22" ], "lang": { "en-US": { "role": { "documentation": "Information by type of long-term debt.", "label": "Long-term Debt, Type [Axis]", "terseLabel": "Long-term Debt, Type [Axis]" } } }, "localname": "LongtermDebtTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails", "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails", "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "http://www.midwestone.com/role/SubsequentEventsDetails", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LongtermDebtTypeDomain": { "auth_ref": [ "r22", "r322" ], "lang": { "en-US": { "role": { "documentation": "Type of long-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.", "label": "Long-term Debt, Type [Domain]", "terseLabel": "Long-term Debt, Type [Domain]" } } }, "localname": "LongtermDebtTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails", "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails", "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "http://www.midwestone.com/role/SubsequentEventsDetails", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LongtermDebtWeightedAverageInterestRate": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Weighted average interest rate of long-term debt outstanding calculated at point in time.", "label": "Long-term Debt, Weighted Average Interest Rate, at Point in Time", "terseLabel": "Weighted Average Rate" } } }, "localname": "LongtermDebtWeightedAverageInterestRate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails" ], "xbrltype": "percentItemType" }, "us-gaap_MarketingAndAdvertisingExpense": { "auth_ref": [ "r63" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 6.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The total expense recognized in the period for promotion, public relations, and brand or product advertising.", "label": "Marketing and Advertising Expense", "terseLabel": "Marketing" } } }, "localname": "MarketingAndAdvertisingExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember": { "auth_ref": [ "r341" ], "lang": { "en-US": { "role": { "documentation": "Debt securities collateralized by real estate mortgage loans (mortgages), issued by US Government Sponsored Enterprises, such as Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac).", "label": "Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]", "terseLabel": "Mortgage-backed securities" } } }, "localname": "MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAdditionalInformationDetails", "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails", "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails", "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MortgageBackedSecuritiesMember": { "auth_ref": [ "r204", "r341", "r342", "r348", "r661" ], "lang": { "en-US": { "role": { "documentation": "Securities collateralized by mortgage loans.", "label": "Collateralized Mortgage Backed Securities [Member]", "terseLabel": "Collateral dependent impaired loans" } } }, "localname": "MortgageBackedSecuritiesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivities": { "auth_ref": [ "r79" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 3.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.", "label": "Net Cash Provided by (Used in) Financing Activities", "totalLabel": "Net cash provided by (used in) financing activities" } } }, "localname": "NetCashProvidedByUsedInFinancingActivities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Financing Activities [Abstract]", "terseLabel": "Cash flows from financing activities:" } } }, "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivities": { "auth_ref": [ "r79" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 2.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.", "label": "Net Cash Provided by (Used in) Investing Activities", "totalLabel": "Net cash (used in) provided by investing activities" } } }, "localname": "NetCashProvidedByUsedInInvestingActivities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Investing Activities [Abstract]", "terseLabel": "Cash flows from investing activities:" } } }, "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivities": { "auth_ref": [ "r79", "r83", "r86" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 1.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.", "label": "Net Cash Provided by (Used in) Operating Activities", "totalLabel": "Net cash provided by operating activities" } } }, "localname": "NetCashProvidedByUsedInOperatingActivities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Operating Activities [Abstract]", "terseLabel": "Cash flows from operating activities:" } } }, "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetIncomeLoss": { "auth_ref": [ "r0", "r50", "r53", "r59", "r86", "r95", "r107", "r113", "r114", "r115", "r116", "r119", "r120", "r127", "r156", "r163", "r166", "r167", "r169", "r225", "r476", "r587", "r639" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome": { "order": 2.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 }, "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.", "label": "Net Income (Loss) Attributable to Parent", "terseLabel": "Net income", "totalLabel": "Net income", "verboseLabel": "Net income" } } }, "localname": "NetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome", "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows", "http://www.midwestone.com/role/ConsolidatedStatementsofIncome", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity", "http://www.midwestone.com/role/EarningsperShareDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Accounting Standards Update and Change in Accounting Principle [Abstract]", "terseLabel": "New Accounting Pronouncements and Changes in Accounting Principles [Abstract]" } } }, "localname": "NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock": { "auth_ref": [ "r105", "r106", "r109", "r110", "r121", "r122", "r123", "r231", "r232", "r336", "r337", "r338", "r339", "r363", "r379", "r380", "r381", "r558", "r559", "r560", "r655", "r656", "r657", "r658", "r660" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for change in accounting principle. Includes, but is not limited to, nature, reason, and method of adopting amendment to accounting standards or other change in accounting principle.", "label": "Accounting Standards Update and Change in Accounting Principle [Text Block]", "terseLabel": "Effect of New Financial Accounting Standards" } } }, "localname": "NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandards" ], "xbrltype": "textBlockItemType" }, "us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "New Accounting Pronouncements or Change in Accounting Principle [Line Items]", "terseLabel": "New Accounting Pronouncements or Change in Accounting Principle [Line Items]" } } }, "localname": "NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable": { "auth_ref": [ "r104", "r107", "r108", "r109", "r111", "r112", "r115", "r134", "r227", "r228", "r229", "r230", "r233", "r234", "r356", "r357", "r358", "r359", "r360", "r361", "r362", "r364", "r375", "r376", "r377", "r378", "r555", "r556", "r557", "r649", "r650", "r651", "r652", "r653", "r654", "r655", "r656", "r657", "r658", "r659", "r660" ], "lang": { "en-US": { "role": { "documentation": "Summarization of the changes in an accounting principle or a new accounting pronouncement, including the line items affected by the change and the financial effects of the change on those particular line items.", "label": "Accounting Standards Update and Change in Accounting Principle [Table]", "terseLabel": "New Accounting Pronouncements or Change in Accounting Principle [Table]" } } }, "localname": "NewAccountingPronouncementsOrChangeInAccountingPrincipleTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1": { "auth_ref": [ "r90", "r91", "r92" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The value of an asset or business acquired in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.", "label": "Noncash or Part Noncash Acquisition, Value of Assets Acquired", "terseLabel": "Total noncash assets acquired" } } }, "localname": "NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoncashOrPartNoncashAcquisitionValueOfAssetsAcquiredAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Noncash or Part Noncash Acquisition, Value of Assets Acquired [Abstract]", "terseLabel": "Noncash assets acquired:" } } }, "localname": "NoncashOrPartNoncashAcquisitionValueOfAssetsAcquiredAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1": { "auth_ref": [ "r90", "r91", "r92" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The total amount of [all] liabilities that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.", "label": "Noncash or Part Noncash Acquisition, Value of Liabilities Assumed", "terseLabel": "Total liabilities assumed" } } }, "localname": "NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumedAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Noncash or Part Noncash Acquisition, Value of Liabilities Assumed [Abstract]", "terseLabel": "Liabilities assumed:" } } }, "localname": "NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumedAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NondesignatedMember": { "auth_ref": [ "r418" ], "lang": { "en-US": { "role": { "documentation": "Derivative instrument not designated as hedging instrument under Generally Accepted Accounting Principles (GAAP).", "label": "Not Designated as Hedging Instrument [Member]", "terseLabel": "Not Designated as Hedging Instrument" } } }, "localname": "NondesignatedMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofOtherDerivativesNotDesignatedasHedgingInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_NoninterestBearingDepositLiabilities": { "auth_ref": [ "r578" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_Deposits", "weight": 1.0 }, "http://www.midwestone.com/role/DepositsDetails": { "order": 1.0, "parentTag": "us-gaap_Deposits", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity.", "label": "Noninterest-bearing Deposit Liabilities", "terseLabel": "Noninterest bearing deposits" } } }, "localname": "NoninterestBearingDepositLiabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets", "http://www.midwestone.com/role/DepositsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoninterestBearingDomesticDepositChecking": { "auth_ref": [ "r578" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of noninterest-bearing domestic checking deposit liabilities.", "label": "Noninterest-bearing Domestic Deposit, Checking", "terseLabel": "Non-interest bearing deposits" } } }, "localname": "NoninterestBearingDomesticDepositChecking", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoninterestExpense": { "auth_ref": [ "r600" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 3.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Total aggregate amount of all noninterest expense.", "label": "Noninterest Expense", "totalLabel": "Total noninterest expense" } } }, "localname": "NoninterestExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoninterestExpenseAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Noninterest Expense [Abstract]", "terseLabel": "Noninterest expense" } } }, "localname": "NoninterestExpenseAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "stringItemType" }, "us-gaap_NoninterestIncome": { "auth_ref": [ "r597" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 2.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.", "label": "Noninterest Income", "totalLabel": "Total noninterest income" } } }, "localname": "NoninterestIncome", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoninterestIncomeAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Noninterest Income [Abstract]", "terseLabel": "Noninterest income" } } }, "localname": "NoninterestIncomeAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "stringItemType" }, "us-gaap_NoninterestIncomeOtherOperatingIncome": { "auth_ref": [ "r56", "r585", "r642" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 8.0, "parentTag": "us-gaap_NoninterestIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of revenue earned, classified as other, excluding interest income.", "label": "Noninterest Income, Other Operating Income", "terseLabel": "Other" } } }, "localname": "NoninterestIncomeOtherOperatingIncome", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_NonperformingFinancingReceivableMember": { "auth_ref": [ "r187", "r262" ], "lang": { "en-US": { "role": { "documentation": "Category status of financial instruments in which payments are past due in accordance with the terms of the contract. Financial instruments include, but are not limited to, financing receivables, loans, debt, and investments.", "label": "Nonperforming Financial Instruments [Member]", "terseLabel": "Nonperforming" } } }, "localname": "NonperformingFinancingReceivableMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "domainItemType" }, "us-gaap_NotesPayableFairValueDisclosure": { "auth_ref": [ "r19" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value portion of notes payable.", "label": "Notes Payable, Fair Value Disclosure", "terseLabel": "Other long-term debt" } } }, "localname": "NotesPayableFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NotesPayableOtherPayablesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A written promise to pay a note to a third party.", "label": "Notes Payable, Other Payables [Member]", "terseLabel": "Other long-term debt" } } }, "localname": "NotesPayableOtherPayablesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails" ], "xbrltype": "domainItemType" }, "us-gaap_NotesPayableToBanksMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A written promise to pay a note to a bank.", "label": "Notes Payable to Banks [Member]", "terseLabel": "Notes payable to unaffiliated bank" } } }, "localname": "NotesPayableToBanksMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtOtherLongTermDebtDetails" ], "xbrltype": "domainItemType" }, "us-gaap_NotesReceivableGross": { "auth_ref": [ "r261", "r270", "r271" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_NotesReceivableNet", "weight": 1.0 }, "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, before allowance for credit loss, of financing receivable.", "label": "Financing Receivable, before Allowance for Credit Loss", "terseLabel": "Loans, gross", "totalLabel": "Loans held for investment, net of unearned income" } } }, "localname": "NotesReceivableGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NotesReceivableNet": { "auth_ref": [ "r8", "r172", "r261" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement.", "label": "Financing Receivable, after Allowance for Credit Loss", "terseLabel": "Loans receivable, net", "totalLabel": "Total loans held for investment, net" } } }, "localname": "NotesReceivableNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NumberOfOperatingSegments": { "auth_ref": [ "r152" ], "lang": { "en-US": { "role": { "documentation": "Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.", "label": "Number of Operating Segments", "terseLabel": "Number of operating segments" } } }, "localname": "NumberOfOperatingSegments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "integerItemType" }, "us-gaap_OccupancyNet": { "auth_ref": [ "r64", "r491", "r598" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 2.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of net occupancy expense that may include items, such as depreciation of facilities and equipment, lease expenses, property taxes and property and casualty insurance expense.", "label": "Occupancy, Net", "terseLabel": "Occupancy expense of premises, net" } } }, "localname": "OccupancyNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OffBalanceSheetCreditLossLiability": { "auth_ref": [ "r239", "r317" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.", "label": "Off-Balance Sheet, Credit Loss, Liability", "terseLabel": "Liability for off-balance sheet credit exposures" } } }, "localname": "OffBalanceSheetCreditLossLiability", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails", "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal": { "auth_ref": [ "r243" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.", "label": "Off-Balance Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)", "terseLabel": "Credit loss expense, off balance sheet credit exposure" } } }, "localname": "OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseCost": { "auth_ref": [ "r502", "r511" ], "calculation": { "http://www.midwestone.com/role/LeasesLeaseCostDetails": { "order": 1.0, "parentTag": "us-gaap_LeaseCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "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.", "label": "Operating Lease, Cost", "terseLabel": "Operating lease cost" } } }, "localname": "OperatingLeaseCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Lessee, Operating Lease, Liability, Payment, Due [Abstract]", "terseLabel": "Operating Leases" } } }, "localname": "OperatingLeaseLiabilitiesPaymentsDueAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingLeaseLiability": { "auth_ref": [ "r495" ], "calculation": { "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails": { "order": 1.0, "parentTag": "mofg_LeaseLiability", "weight": 1.0 }, "http://www.midwestone.com/role/LeasesMaturityScheduleDetails": { "order": 1.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease.", "label": "Operating Lease, Liability", "terseLabel": "Operating lease liability", "verboseLabel": "Initial recognition of operation lease liability" } } }, "localname": "OperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows", "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails", "http://www.midwestone.com/role/LeasesMaturityScheduleDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList": { "auth_ref": [ "r496" ], "lang": { "en-US": { "role": { "documentation": "Indicates line item in statement of financial position that includes operating lease liability.", "label": "Operating Lease, Liability, Statement of Financial Position [Extensible List]", "terseLabel": "Operating Lease, Liability, Statement of Financial Position [Extensible List]" } } }, "localname": "OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "extensibleListItemType" }, "us-gaap_OperatingLeasePayments": { "auth_ref": [ "r500", "r505" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.", "label": "Operating Lease, Payments", "terseLabel": "Operating cash flows from operating leases" } } }, "localname": "OperatingLeasePayments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseRightOfUseAsset": { "auth_ref": [ "r494" ], "calculation": { "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails": { "order": 1.0, "parentTag": "mofg_LeaseRightofUseAsset", "weight": 1.0 }, "http://www.midwestone.com/role/OtherAssetsDetails": { "order": 2.0, "parentTag": "us-gaap_OtherAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's right to use underlying asset under operating lease.", "label": "Operating Lease, Right-of-Use Asset", "netLabel": "Operating lease right-of-use assets", "terseLabel": "Operating lease ROU assets, net", "verboseLabel": "Initial recognition of operating lease right of use asset" } } }, "localname": "OperatingLeaseRightOfUseAsset", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows", "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails", "http://www.midwestone.com/role/OtherAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList": { "auth_ref": [ "r496" ], "lang": { "en-US": { "role": { "documentation": "Indicates line item in statement of financial position that includes operating lease right-of-use asset.", "label": "Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]", "terseLabel": "Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]" } } }, "localname": "OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "extensibleListItemType" }, "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent": { "auth_ref": [ "r508", "r511" ], "lang": { "en-US": { "role": { "documentation": "Weighted average discount rate for operating lease calculated at point in time.", "label": "Operating Lease, Weighted Average Discount Rate, Percent", "terseLabel": "Operating leases" } } }, "localname": "OperatingLeaseWeightedAverageDiscountRatePercent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": { "auth_ref": [ "r507", "r511" ], "lang": { "en-US": { "role": { "documentation": "Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Operating Lease, Weighted Average Remaining Lease Term", "terseLabel": "Operating leases" } } }, "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesAssetsandLiabilitiesDetails" ], "xbrltype": "durationItemType" }, "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Organization, Consolidation and Presentation of Financial Statements [Abstract]", "terseLabel": "Organization, Consolidation and Presentation of Financial Statements [Abstract]" } } }, "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock": { "auth_ref": [ "r100", "r123", "r151", "r411" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for the general note to the financial statements for the reporting entity which may include, descriptions of the basis of presentation, business description, significant accounting policies, consolidations, reclassifications, new pronouncements not yet adopted and changes in accounting principles.", "label": "Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]", "terseLabel": "Summary of Significant Accounting Policies" } } }, "localname": "OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_OtherAssets": { "auth_ref": [ "r1", "r568", "r630" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 8.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://www.midwestone.com/role/OtherAssetsDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of assets classified as other.", "label": "Other Assets", "terseLabel": "Other assets", "totalLabel": "Other assets" } } }, "localname": "OtherAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets", "http://www.midwestone.com/role/OtherAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherAssetsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Other Assets [Abstract]", "terseLabel": "Other Assets [Abstract]" } } }, "localname": "OtherAssetsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_OtherAssetsDisclosureTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for other assets. This disclosure includes other current assets and other noncurrent assets.", "label": "Other Assets Disclosure [Text Block]", "terseLabel": "Other Assets" } } }, "localname": "OtherAssetsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/OtherAssets" ], "xbrltype": "textBlockItemType" }, "us-gaap_OtherAssetsMiscellaneous": { "auth_ref": [], "calculation": { "http://www.midwestone.com/role/OtherAssetsDetails": { "order": 4.0, "parentTag": "us-gaap_OtherAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of other miscellaneous assets.", "label": "Other Assets, Miscellaneous", "terseLabel": "Other receivables/assets" } } }, "localname": "OtherAssetsMiscellaneous", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/OtherAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherCommitment": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.", "label": "Other Commitment", "terseLabel": "Other commitment" } } }, "localname": "OtherCommitment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesScheduleofCommitmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherCommitmentsAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by type of other commitment.", "label": "Other Commitments [Axis]", "terseLabel": "Other Commitments [Axis]" } } }, "localname": "OtherCommitmentsAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesScheduleofCommitmentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OtherCommitmentsDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Other future obligation.", "label": "Other Commitments [Domain]", "terseLabel": "Other Commitments [Domain]" } } }, "localname": "OtherCommitmentsDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesScheduleofCommitmentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherCommitmentsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Other Commitments [Line Items]", "terseLabel": "Other Commitments [Line Items]" } } }, "localname": "OtherCommitmentsLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesScheduleofCommitmentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OtherCommitmentsTable": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about obligations resulting from other commitments.", "label": "Other Commitments [Table]", "terseLabel": "Other Commitments [Table]" } } }, "localname": "OtherCommitmentsTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesScheduleofCommitmentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OtherCommitmentsTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of information about obligations resulting from other commitments.", "label": "Other Commitments [Table Text Block]", "terseLabel": "Schedule of Commitments" } } }, "localname": "OtherCommitmentsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent": { "auth_ref": [ "r402", "r403", "r406" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome": { "order": 1.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.", "label": "Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent", "totalLabel": "Unrealized net gains on debt securities available for sale, net of reclassification adjustment" } } }, "localname": "OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParentAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent [Abstract]", "terseLabel": "Unrealized gain from debt securities available for sale:" } } }, "localname": "OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParentAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome" ], "xbrltype": "stringItemType" }, "us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent": { "auth_ref": [ "r402", "r403", "r406" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome": { "order": 2.0, "parentTag": "us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of tax expense (benefit), after reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.", "label": "Other Comprehensive Income (Loss), Available-for-sale Securities, Tax, Portion Attributable to Parent", "negatedTerseLabel": "Income tax expense" } } }, "localname": "OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParentAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent [Abstract]", "terseLabel": "Unrealized loss from cash flow hedging instruments:" } } }, "localname": "OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParentAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome" ], "xbrltype": "stringItemType" }, "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent": { "auth_ref": [ "r43" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome": { "order": 2.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness, attributable to parent.", "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent", "totalLabel": "Unrealized net losses on cash flow hedge instruments, net of reclassification adjustment" } } }, "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent": { "auth_ref": [ "r44" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome": { "order": 1.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness, attributable to parent.", "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax, Parent", "negatedTerseLabel": "Income tax benefit" } } }, "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax": { "auth_ref": [ "r40", "r43", "r422", "r427", "r451" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome": { "order": 2.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.", "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax", "terseLabel": "Amount of Gain (Loss) Recognized in AOCI on Derivative", "verboseLabel": "Unrealized net holding loss in cash flow hedging instruments arising during the period" } } }, "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax": { "auth_ref": [ "r43", "r47", "r428" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome": { "order": 3.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.", "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax", "negatedTerseLabel": "Reclassification adjustment for net losses in cash flow hedging instruments included in income", "terseLabel": "Amount of Gain (Loss) Reclassified from AOCI into Income" } } }, "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome", "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeReclassificationForDiscontinuanceBeforeTax": { "auth_ref": [ "r430" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, before tax, of reclassification from accumulated other comprehensive income (AOCI) for gain (loss) from discontinuance of cash flow hedge included in assessment of hedge effectiveness.", "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Reclassification for Discontinuance, before Tax", "terseLabel": "Amount reclassified from AOCI into income" } } }, "localname": "OtherComprehensiveIncomeLossCashFlowHedgeReclassificationForDiscontinuanceBeforeTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofImpactsonStatementsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Other Comprehensive Income (Loss), Net of Tax [Abstract]", "terseLabel": "Other comprehensive income, net of tax:" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome" ], "xbrltype": "stringItemType" }, "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent": { "auth_ref": [ "r51", "r54", "r402", "r403", "r406" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome": { "order": 1.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax of other comprehensive income (loss) attributable to parent entity.", "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent", "terseLabel": "Other comprehensive income, net of tax", "totalLabel": "Other comprehensive income, net of tax" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax": { "auth_ref": [ "r43", "r47", "r48", "r223" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome": { "order": 3.0, "parentTag": "us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.", "label": "Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax", "negatedTerseLabel": "Reclassification adjustment for gains included in net income" } } }, "localname": "OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax": { "auth_ref": [ "r41", "r43", "r223" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome": { "order": 1.0, "parentTag": "us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, before tax and 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.", "label": "OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax", "terseLabel": "Unrealized net holding gains on debt securities available for sale arising during the period" } } }, "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherIncomeMember": { "auth_ref": [ "r440" ], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption encompassing other revenue.", "label": "Other Income [Member]", "terseLabel": "Other income" } } }, "localname": "OtherIncomeMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingScheduleofOtherDerivativesNotDesignatedasHedgingInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherIntangibleAssetsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Intangible assets classified as other.", "label": "Other Intangible Assets [Member]", "terseLabel": "Other" } } }, "localname": "OtherIntangibleAssetsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails", "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherInterestAndDividendIncome": { "auth_ref": [ "r602" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 4.0, "parentTag": "us-gaap_InterestAndDividendIncomeOperating", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after discount, accretion and premium amortization, of interest income and dividend income classified as other.", "label": "Other Interest and Dividend Income", "terseLabel": "Other" } } }, "localname": "OtherInterestAndDividendIncome", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherLiabilities": { "auth_ref": [ "r580" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of liabilities classified as other.", "label": "Other Liabilities", "terseLabel": "Other liabilities" } } }, "localname": "OtherLiabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Other Noncash Investing and Financing Items [Abstract]", "terseLabel": "Supplemental schedule of non-cash investing activities from acquisition:" } } }, "localname": "OtherNoncashInvestingAndFinancingItemsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_OtherNoninterestExpense": { "auth_ref": [ "r600" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 11.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of noninterest expense classified as other.", "label": "Other Noninterest Expense", "terseLabel": "Other" } } }, "localname": "OtherNoninterestExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherRealEstateAndForeclosedAssets": { "auth_ref": [ "r576" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 7.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.", "label": "Other Real Estate, Foreclosed Assets, and Repossessed Assets", "terseLabel": "Foreclosed assets, net" } } }, "localname": "OtherRealEstateAndForeclosedAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PassMember": { "auth_ref": [ "r187", "r262" ], "lang": { "en-US": { "role": { "documentation": "A category of financing receivables not considered to be special mention, substandard, doubtful, and loss receivables.", "label": "Pass [Member]", "verboseLabel": "Pass" } } }, "localname": "PassMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PastDueFinancingReceivablesTableTextBlock": { "auth_ref": [ "r194", "r195", "r248", "r271" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of aging analysis for financing receivable.", "label": "Financing Receivable, Past Due [Table Text Block]", "terseLabel": "Schedule of Loans Based on Delinquency Status" } } }, "localname": "PastDueFinancingReceivablesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_PaymentsForOriginationOfMortgageLoansHeldForSale": { "auth_ref": [ "r78", "r82" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The amount of cash paid for the origination of mortgages that are held for sale.", "label": "Payments for Origination of Mortgage Loans Held-for-sale", "terseLabel": "Origination of loans held for sale" } } }, "localname": "PaymentsForOriginationOfMortgageLoansHeldForSale", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsForRepurchaseOfCommonStock": { "auth_ref": [ "r74" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow to reacquire common stock during the period.", "label": "Payments for Repurchase of Common Stock", "negatedTerseLabel": "Repurchase of common stock" } } }, "localname": "PaymentsForRepurchaseOfCommonStock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfDividends": { "auth_ref": [ "r74" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.", "label": "Payments of Dividends", "negatedTerseLabel": "Dividends paid" } } }, "localname": "PaymentsOfDividends", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfStockIssuanceCosts": { "auth_ref": [ "r76" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow for cost incurred directly with the issuance of an equity security.", "label": "Payments of Stock Issuance Costs", "negatedTerseLabel": "Payment of stock issuance costs" } } }, "localname": "PaymentsOfStockIssuanceCosts", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation": { "auth_ref": [ "r74" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.", "label": "Payment, Tax Withholding, Share-based Payment Arrangement", "negatedTerseLabel": "Taxes paid relating to the release/lapse of restriction on RSUs" } } }, "localname": "PaymentsRelatedToTaxWithholdingForShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt": { "auth_ref": [ "r66", "r71", "r203" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "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).", "label": "Payments to Acquire Debt Securities, Available-for-sale", "negatedTerseLabel": "Purchases of debt securities available for sale" } } }, "localname": "PaymentsToAcquireAvailableForSaleSecuritiesDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireBusinessesGross": { "auth_ref": [ "r72", "r399" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.", "label": "Payments to Acquire Businesses, Gross", "terseLabel": "Cash consideration" } } }, "localname": "PaymentsToAcquireBusinessesGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireLoansReceivable": { "auth_ref": [ "r71" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 10.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow for the purchase of loan receivable arising from the financing of goods and services.", "label": "Payments to Acquire Loans Receivable", "negatedLabel": "Net increase in loans, net of unearned income" } } }, "localname": "PaymentsToAcquireLoansReceivable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": { "auth_ref": [ "r73" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.", "label": "Payments to Acquire Property, Plant, and Equipment", "negatedTerseLabel": "Purchases of premises and equipment" } } }, "localname": "PaymentsToAcquirePropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PerformingFinancingReceivableMember": { "auth_ref": [ "r187", "r262" ], "lang": { "en-US": { "role": { "documentation": "Category status of financial instruments in which payments are received or paid on a timely basis in accordance with the terms of the contract. Financial instruments include, but are not limited to, financing receivables, loans, debt instruments, and investments.", "label": "Performing Financial Instruments [Member]", "terseLabel": "Performing" } } }, "localname": "PerformingFinancingReceivableMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedForFederalHomeLoanBankDebt": { "auth_ref": [ "r532" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The carrying amount, as of the date of the latest financial statement presented, of loans receivable which are owned but transferred to serve as collateral for the payment of FHLB debt obligations, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party.", "label": "Pledged Financial Instruments, Not Separately Reported, Loans Receivable, for Federal Home Loan Bank Debt", "terseLabel": "Loans pledged for Federal Home Loan Bank debt" } } }, "localname": "PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedForFederalHomeLoanBankDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged": { "auth_ref": [ "r532" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Sum of the carrying amounts as of the date of the latest financial statement presented of securities which are owned but transferred to another party to serve as collateral to partially or fully secure a debt obligation, repurchase agreement or other current or potential obligation, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party.", "label": "Pledged Financial Instruments, Not Separately Reported, Securities", "terseLabel": "Pledged securities" } } }, "localname": "PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAdditionalInformationDetails", "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PortionAtFairValueFairValueDisclosureMember": { "auth_ref": [ "r468" ], "lang": { "en-US": { "role": { "documentation": "Measured at fair value for financial reporting purposes.", "label": "Portion at Fair Value Measurement [Member]", "terseLabel": "Portion at Fair Value Measurement" } } }, "localname": "PortionAtFairValueFairValueDisclosureMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PositionAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by position taken for a security.", "label": "Position [Axis]", "terseLabel": "Position [Axis]" } } }, "localname": "PositionAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PositionDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Indicates position taken for a security.", "label": "Position [Domain]", "terseLabel": "Position [Domain]" } } }, "localname": "PositionDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PreferredStockParOrStatedValuePerShare": { "auth_ref": [ "r6" ], "lang": { "en-US": { "role": { "documentation": "Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.", "label": "Preferred Stock, Par or Stated Value Per Share", "terseLabel": "Preferred stock, par value (in dollars per share)" } } }, "localname": "PreferredStockParOrStatedValuePerShare", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "perShareItemType" }, "us-gaap_PreferredStockSharesAuthorized": { "auth_ref": [ "r6" ], "lang": { "en-US": { "role": { "documentation": "The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.", "label": "Preferred Stock, Shares Authorized", "terseLabel": "Preferred stock, shares authorized (in shares)" } } }, "localname": "PreferredStockSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockSharesIssued": { "auth_ref": [ "r6" ], "lang": { "en-US": { "role": { "documentation": "Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.", "label": "Preferred Stock, Shares Issued", "terseLabel": "Preferred stock, shares issued (in shares)" } } }, "localname": "PreferredStockSharesIssued", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockSharesOutstanding": { "auth_ref": [ "r6" ], "lang": { "en-US": { "role": { "documentation": "Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.", "label": "Preferred Stock, Shares Outstanding", "terseLabel": "Preferred stock, shares outstanding (in shares)" } } }, "localname": "PreferredStockSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockValue": { "auth_ref": [ "r6" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 6.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.", "label": "Preferred Stock, Value, Issued", "terseLabel": "Preferred stock, no par value; authorized 500,000 shares; no shares issued and outstanding" } } }, "localname": "PreferredStockValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_PrivatePlacementMember": { "auth_ref": [], "lang": { "en-US": { "role": { "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.", "label": "Private Placement [Member]", "terseLabel": "Private placement" } } }, "localname": "PrivatePlacementMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "http://www.midwestone.com/role/SubsequentEventsDetails", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities": { "auth_ref": [ "r66", "r67", "r203" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "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).", "label": "Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale", "terseLabel": "Proceeds from maturities and calls of debt securities available for sale" } } }, "localname": "ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities": { "auth_ref": [ "r67", "r203" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 8.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow associated with the maturity, prepayments and calls (requests for early payments) of debt securities designated as held-to-maturity.", "label": "Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities", "terseLabel": "Proceeds from maturities and calls of debt securities held to maturity" } } }, "localname": "ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromRepaymentsOfShortTermDebt": { "auth_ref": [ "r99" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The net cash inflow or outflow for borrowing having initial term of repayment within one year or the normal operating cycle, if longer.", "label": "Proceeds from (Repayments of) Short-term Debt", "terseLabel": "Short-term borrowings" } } }, "localname": "ProceedsFromRepaymentsOfShortTermDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt": { "auth_ref": [ "r66", "r67", "r203" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Proceeds from Sale of Debt Securities, Available-for-sale", "terseLabel": "Proceeds from sales of debt securities available for sale" } } }, "localname": "ProceedsFromSaleOfAvailableForSaleSecuritiesDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesProceedsandGrossRealizedGainsLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfForeclosedAssets": { "auth_ref": [ "r70" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow from the sale assets received in full or partial satisfaction of a receivable including real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts. Foreclosed assets also include loans that are treated as if the underlying collateral had been foreclosed because the institution has taken possession of the collateral, even though legal foreclosure or repossession proceedings have not taken place.", "label": "Proceeds from Sale of Foreclosed Assets", "terseLabel": "Proceeds from sale of foreclosed assets" } } }, "localname": "ProceedsFromSaleOfForeclosedAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfIntangibleAssets": { "auth_ref": [ "r69" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow from disposal of asset without physical form usually arising from contractual or other legal rights, excluding goodwill.", "label": "Proceeds from Sale of Intangible Assets", "terseLabel": "Proceeds from sale of intangible assets" } } }, "localname": "ProceedsFromSaleOfIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale": { "auth_ref": [ "r78", "r80" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow from sales of loans that are secured with real estate mortgages and are held with the intention to resell in the near future.", "label": "Proceeds from Sale of Mortgage Loans Held-for-sale", "terseLabel": "Proceeds from sales of loans held for sale" } } }, "localname": "ProceedsFromSaleOfMortgageLoansHeldForSale", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment": { "auth_ref": [ "r69" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.", "label": "Proceeds from Sale of Property, Plant, and Equipment", "terseLabel": "Proceeds from sale of premises and equipment" } } }, "localname": "ProceedsFromSaleOfPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProfessionalFees": { "auth_ref": [ "r664", "r665" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 4.0, "parentTag": "us-gaap_NoninterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.", "label": "Professional Fees", "terseLabel": "Legal and professional" } } }, "localname": "ProfessionalFees", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProfitLossFromRealEstateOperations": { "auth_ref": [ "r599" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 10.0, "parentTag": "us-gaap_NoninterestExpense", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The net cost of operation of other real estate (including provisions for real estate losses, rental income, and gains and losses on sales of real estate).", "label": "Profit (Loss) from Real Estate Operations", "negatedTerseLabel": "Foreclosed assets, net" } } }, "localname": "ProfitLossFromRealEstateOperations", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization": { "auth_ref": [ "r28", "r309", "r501" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 9.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset.", "label": "Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization", "terseLabel": "Premises and equipment, net" } } }, "localname": "PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProvisionForLoanAndLeaseLosses": { "auth_ref": [ "r84", "r174", "r593" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://www.midwestone.com/role/ConsolidatedStatementsofIncome": { "order": 2.0, "parentTag": "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of expense related to estimated loss from loan and lease transactions.", "label": "Provision for Loan and Lease Losses", "terseLabel": "Credit loss expense", "verboseLabel": "Credit loss expense" } } }, "localname": "ProvisionForLoanAndLeaseLosses", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows", "http://www.midwestone.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProvisionForLoanLeaseAndOtherLosses": { "auth_ref": [ "r84", "r174", "r593" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.", "label": "Provision for Loan, Lease, and Other Losses", "terseLabel": "Credit loss expense" } } }, "localname": "ProvisionForLoanLeaseAndOtherLosses", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RealEstateFundsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Investments in funds that invest in commercial or residential real estate.", "label": "Real Estate Funds [Member]", "terseLabel": "Foreclosed assets, net" } } }, "localname": "RealEstateFundsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RealEstateMember": { "auth_ref": [ "r335" ], "lang": { "en-US": { "role": { "documentation": "Property consisting of land, land improvement and buildings.", "label": "Real Estate [Member]", "terseLabel": "Real Estate" } } }, "localname": "RealEstateMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ReceivableTypeDomain": { "auth_ref": [ "r26" ], "lang": { "en-US": { "role": { "documentation": "Financing arrangement representing a contractual right to receive money either on demand or on fixed and determinable dates.", "label": "Receivable [Domain]", "terseLabel": "Receivable [Domain]" } } }, "localname": "ReceivableTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ReceivablesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Receivables [Abstract]" } } }, "localname": "ReceivablesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock": { "auth_ref": [ "r619", "r620", "r621", "r623", "r624", "r625", "r627", "r628" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for regulatory capital requirement for depository and lending institutions. Institutions include, but not are not limited to, finance company, insured depository institution, bank holding company, savings and loan association holding company, bank and savings institution not federally insured, mortgage company, foreign financial institution and credit union.", "label": "Regulatory Capital Requirements under Banking Regulations [Text Block]", "terseLabel": "Regulatory Capital Requirements and Restrictions on Subsidiary Cash" } } }, "localname": "RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCash" ], "xbrltype": "textBlockItemType" }, "us-gaap_RepaymentsOfLongTermDebt": { "auth_ref": [ "r75" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.", "label": "Repayments of Long-term Debt", "negatedLabel": "Long-term debt" } } }, "localname": "RepaymentsOfLongTermDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ResidentialMortgageBackedSecuritiesMember": { "auth_ref": [ "r204", "r341" ], "lang": { "en-US": { "role": { "documentation": "Securities collateralized by residential real estate mortgage loans.", "label": "Residential Mortgage Backed Securities [Member]", "terseLabel": "Collateralized mortgage obligations" } } }, "localname": "ResidentialMortgageBackedSecuritiesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAdditionalInformationDetails", "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ResidentialPortfolioSegmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Portfolio segment of the company's total financing receivables related to residential financing receivables.", "label": "Residential Portfolio Segment [Member]", "terseLabel": "Residential real estate" } } }, "localname": "ResidentialPortfolioSegmentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RetainedEarningsAccumulatedDeficit": { "auth_ref": [ "r10", "r332", "r364", "r635", "r655", "r660" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.", "label": "Retained Earnings (Accumulated Deficit)", "terseLabel": "Retained earnings" } } }, "localname": "RetainedEarningsAccumulatedDeficit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets", "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RetainedEarningsMember": { "auth_ref": [ "r101", "r102", "r103", "r108", "r118", "r120", "r230", "r360", "r361", "r362", "r377", "r378", "r651", "r653" ], "lang": { "en-US": { "role": { "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.", "label": "Retained Earnings [Member]", "terseLabel": "Retained Earnings" } } }, "localname": "RetainedEarningsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability": { "auth_ref": [ "r506", "r511" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in right-of-use asset obtained in exchange for finance lease liability.", "label": "Right-of-Use Asset Obtained in Exchange for Finance Lease Liability", "terseLabel": "Right-of-use assets obtained in exchange for new finance lease liabilities" } } }, "localname": "RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability": { "auth_ref": [ "r506", "r511" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in right-of-use asset obtained in exchange for operating lease liability.", "label": "Right-of-Use Asset Obtained in Exchange for Operating Lease Liability", "terseLabel": "Right-of-use assets obtained in exchange for new operating lease liabilities" } } }, "localname": "RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SaleOfStockConsiderationReceivedOnTransaction": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Cash received on stock transaction after deduction of issuance costs.", "label": "Sale of Stock, Consideration Received on Transaction", "terseLabel": "Sale of equity" } } }, "localname": "SaleOfStockConsiderationReceivedOnTransaction", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "http://www.midwestone.com/role/SubsequentEventsDetails", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SaleOfStockNameOfTransactionDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Sale of the entity's stock, including, but not limited to, initial public offering (IPO) and private placement.", "label": "Sale of Stock [Domain]", "terseLabel": "Sale of Stock [Domain]" } } }, "localname": "SaleOfStockNameOfTransactionDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "http://www.midwestone.com/role/SubsequentEventsDetails", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable": { "auth_ref": [ "r26" ], "lang": { "en-US": { "role": { "documentation": "Schedule itemizing specific types of trade accounts and notes receivable, and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.", "label": "Schedule of Accounts, Notes, Loans and Financing Receivable [Table]", "terseLabel": "Schedule of Accounts, Notes, Loans and Financing Receivable [Table]" } } }, "localname": "ScheduleOfAccountsNotesLoansAndFinancingReceivableTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesCompositionofLoansbyLendingClassificationDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPrimaryTypeofCollateralDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock": { "auth_ref": [ "r26" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.", "label": "Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]", "terseLabel": "Schedule of Loans by Lending Classification" } } }, "localname": "ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Debt Securities, Available-for-sale [Line Items]", "terseLabel": "Schedule of Available-for-sale Securities" } } }, "localname": "ScheduleOfAvailableForSaleSecuritiesLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAdditionalInformationDetails", "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails", "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails", "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfAvailableForSaleSecuritiesTable": { "auth_ref": [ "r211", "r212", "r218", "r219", "r220", "r222", "r611", "r612" ], "lang": { "en-US": { "role": { "documentation": "Schedule of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.", "label": "Schedule of Available-for-sale Securities [Table]", "terseLabel": "Schedule of Available-for-sale Securities [Table]" } } }, "localname": "ScheduleOfAvailableForSaleSecuritiesTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails", "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionEquityInterestIssuedOrIssuableTable": { "auth_ref": [ "r400" ], "lang": { "en-US": { "role": { "documentation": "Schedule of the equity interest (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire an entity in a business combination.", "label": "Schedule of Business Acquisitions by Acquisition, Equity Interest Issued or Issuable [Table]", "terseLabel": "Schedule of Business Acquisitions by Acquisition, Equity Interest Issued or Issuable [Table]" } } }, "localname": "ScheduleOfBusinessAcquisitionsByAcquisitionEquityInterestIssuedOrIssuableTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable": { "auth_ref": [ "r622", "r626" ], "lang": { "en-US": { "role": { "documentation": "A table disclosing the capital amounts and ratios as of the balance sheet date indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity.", "label": "Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table]", "terseLabel": "Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table]" } } }, "localname": "ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock": { "auth_ref": [ "r622", "r626" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity.", "label": "Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]", "terseLabel": "Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations" } } }, "localname": "ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDebtInstrumentsTextBlock": { "auth_ref": [ "r22", "r97", "r328", "r329", "r330", "r331", "r486", "r487", "r489", "r618" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.", "label": "Schedule of Long-term Debt Instruments [Table Text Block]", "terseLabel": "Schedule of long-term debt" } } }, "localname": "ScheduleOfDebtInstrumentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDerivativeInstrumentsTextBlock": { "auth_ref": [ "r412", "r414", "r415", "r418", "r419", "r426", "r431", "r444", "r449" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.", "label": "Schedule of Derivative Instruments [Table Text Block]", "terseLabel": "Schedule of Derivative Instruments" } } }, "localname": "ScheduleOfDerivativeInstrumentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock": { "auth_ref": [ "r423" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of derivative instruments (including nonderivative instruments that are designated and qualify as hedging instruments) of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position.", "label": "Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]", "terseLabel": "Schedule of Derivatives Instrument Impacts on Statements" } } }, "localname": "ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": { "auth_ref": [ "r130" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.", "label": "Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]", "terseLabel": "Schedule of Earnings Per Share" } } }, "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EarningsperShareTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock": { "auth_ref": [ "r370" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.", "label": "Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]", "terseLabel": "Schedule of Effective Income Tax Rate Reconciliation" } } }, "localname": "ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock": { "auth_ref": [ "r456", "r457" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).", "label": "Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]", "terseLabel": "Schedule of Fair Value Measured on Recurring Basis" } } }, "localname": "ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable": { "auth_ref": [ "r247" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about allowance for credit loss on financing receivable.", "label": "Financing Receivable, Allowance for Credit Loss [Table]", "terseLabel": "Financing Receivable, Allowance for Credit Loss [Table]" } } }, "localname": "ScheduleOfFinancingReceivableAllowanceForCreditLossesTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesActivityinAllowanceforCreditLossesDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAllowanceforLoanLossesBasedonEvaluationMethodDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPCDLoansDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable": { "auth_ref": [ "r262", "r270" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about credit quality indicator for financing receivable.", "label": "Financing Receivable, Credit Quality Indicator [Table]", "terseLabel": "Financing Receivable, Credit Quality Indicator [Table]" } } }, "localname": "ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable": { "auth_ref": [ "r189", "r190" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about financing receivable modified as troubled debt restructuring.", "label": "Financing Receivable, Troubled Debt Restructuring [Table]", "terseLabel": "Financing Receivable, Troubled Debt Restructuring [Table]" } } }, "localname": "ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock": { "auth_ref": [ "r194", "r253" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of financing receivable on nonaccrual status.", "label": "Financing Receivable, Nonaccrual [Table Text Block]", "terseLabel": "Schedule of Amortized Cost Basis on Nonaccrual Status" } } }, "localname": "ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfFinancingReceivablesPastDueTable": { "auth_ref": [ "r248", "r271" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about aging analysis for financing receivable.", "label": "Financing Receivable, Past Due [Table]", "terseLabel": "Financing Receivable, Past Due [Table]" } } }, "localname": "ScheduleOfFinancingReceivablesPastDueTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesAmortizedCostBasisBasedonDelinquencyStatusDetails", "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesNonaccrualStatusandInterestIncomeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable": { "auth_ref": [ "r298", "r301", "r554" ], "lang": { "en-US": { "role": { "documentation": "Schedule of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Schedule of Finite-Lived Intangible Assets [Table]", "terseLabel": "Schedule of Finite-Lived Intangible Assets [Table]" } } }, "localname": "ScheduleOfFiniteLivedIntangibleAssetsTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails", "http://www.midwestone.com/role/GoodwillandIntangibleAssetsScheduleofFutureAmortizationExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock": { "auth_ref": [ "r298", "r301" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.", "label": "Schedule of Finite-Lived Intangible Assets [Table Text Block]", "terseLabel": "Schedule of Finite-Lived Intangible Assets" } } }, "localname": "ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfGoodwillTextBlock": { "auth_ref": [ "r294", "r295" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.", "label": "Schedule of Goodwill [Table Text Block]", "terseLabel": "Schedule of Goodwill" } } }, "localname": "ScheduleOfGoodwillTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfImpairedFinancingReceivableTable": { "auth_ref": [ "r185" ], "lang": { "en-US": { "role": { "documentation": "Schedule of the recorded investment, unpaid principal balance, associated allowance, average recorded investment, accounting policies, and interest income recognized on the accrual and cash basis for impaired financing receivables by class of financing receivable.", "label": "Schedule of Impaired Financing Receivable [Table]", "terseLabel": "Schedule of Impaired Financing Receivable [Table]" } } }, "localname": "ScheduleOfImpairedFinancingReceivableTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesPreASC326ImpairedLoanDisclosureDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock": { "auth_ref": [ "r305", "r307" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance and exist in perpetuity, by either major class or business segment.", "label": "Schedule of Indefinite-Lived Intangible Assets [Table Text Block]", "terseLabel": "Schedule of Indefinite-Lived Intangible Assets" } } }, "localname": "ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock": { "auth_ref": [ "r112", "r115", "r137", "r138" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.", "label": "Accounting Standards Update and Change in Accounting Principle [Table Text Block]", "terseLabel": "Schedule of Impacts from New Accounting Pronouncements" } } }, "localname": "ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EffectofNewFinancialAccountingStandardsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfOtherAssetsTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the carrying amounts of other assets. This disclosure includes other current assets and other noncurrent assets.", "label": "Schedule of Other Assets [Table Text Block]", "terseLabel": "Schedule of Other Assets" } } }, "localname": "ScheduleOfOtherAssetsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/OtherAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock": { "auth_ref": [ "r429", "r432" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of derivative instrument not designated or qualifying as hedging instrument.", "label": "Derivatives Not Designated as Hedging Instruments [Table Text Block]", "terseLabel": "Derivatives Not Designated as Hedging Instruments" } } }, "localname": "ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfRealizedGainLossTableTextBlock": { "auth_ref": [ "r221" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales.", "label": "Schedule of Realized Gain (Loss) [Table Text Block]", "terseLabel": "Schedule Proceeds and Realized Gains (Losses)" } } }, "localname": "ScheduleOfRealizedGainLossTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfShortTermDebtTable": { "auth_ref": [ "r18" ], "lang": { "en-US": { "role": { "documentation": "A table or schedule providing information pertaining to borrowings under which repayment was required in less than twelve months (or normal operating cycle, if longer) after its issuance. It may include: (1) description of the short-term debt arrangement; (2) identification of the lender or type of lender; (3) repayment terms; (4) weighted average interest rate; (5) carrying amount of funds borrowed under the specified short-term debt arrangement as of the balance sheet date and measures of the maximum and average amount outstanding during the period; (6) description of the refinancing of a short-term obligation when that obligation is excluded from current liabilities in the balance sheet; and (7) amount of a short-term obligation that has been excluded from current liabilities in the balance sheet because of a refinancing of the obligation.", "label": "Schedule of Short-term Debt [Table]", "terseLabel": "Schedule of Short-term Debt [Table]" } } }, "localname": "ScheduleOfShortTermDebtTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfShortTermDebtTextBlock": { "auth_ref": [ "r18" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of short-term debt arrangements (having initial terms of repayment within one year or the normal operating cycle, if longer) including: (1) description of the short-term debt arrangement; (2) identification of the lender or type of lender; (3) repayment terms; (4) weighted average interest rate; (5) carrying amount of funds borrowed under the specified short-term debt arrangement as of the balance sheet date; (6) description of the refinancing of a short-term obligation when that obligation is excluded from current liabilities in the balance sheet; and (7) amount of a short-term obligation that has been excluded from current liabilities in the balance sheet because of a refinancing of the obligation.", "label": "Schedule of Short-term Debt [Table Text Block]", "terseLabel": "Schedule of Short-term borrowings" } } }, "localname": "ScheduleOfShortTermDebtTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ShortTermBorrowingsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfTemporaryImpairmentLossesInvestmentsTableTextBlock": { "auth_ref": [ "r218" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of investments in an unrealized loss position for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), including: (a) the aggregate related fair value of investments with unrealized losses, (b) the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value).", "label": "Schedule of Temporary Impairment Losses, Investments [Table Text Block]", "terseLabel": "Schedule of Temporary Impairment Losses" } } }, "localname": "ScheduleOfTemporaryImpairmentLossesInvestmentsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock": { "auth_ref": [ "r301" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.", "label": "Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]", "terseLabel": "Schedule of Future Amortization Expense" } } }, "localname": "ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/GoodwillandIntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember": { "auth_ref": [ "r470" ], "lang": { "en-US": { "role": { "documentation": "The securities that an institution sells and agrees to repurchase (the identical or substantially the same securities) as a seller-borrower at a specified date for a specified price, also known as a repurchase agreement, or repo. Most repos involve obligations of the federal government or its agencies, but other financial instruments, such as commercial paper, banker's acceptances, and negotiable certificates of deposit, are sometimes used in repos.", "label": "Securities Sold under Agreements to Repurchase [Member]", "terseLabel": "Securities sold under agreements to repurchase" } } }, "localname": "SecuritiesSoldUnderAgreementsToRepurchaseMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SegmentReportingPolicyPolicyTextBlock": { "auth_ref": [ "r94", "r157", "r158", "r159", "r160", "r161", "r162", "r170" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for segment reporting.", "label": "Segment Reporting, Policy [Policy Text Block]", "terseLabel": "Segment Reporting" } } }, "localname": "SegmentReportingPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ServicingAssetAtFairValueAmount": { "auth_ref": [ "r534", "r535", "r536", "r537" ], "calculation": { "http://www.midwestone.com/role/OtherAssetsDetails": { "order": 5.0, "parentTag": "us-gaap_OtherAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.", "label": "Servicing Asset at Fair Value, Amount", "terseLabel": "Mortgage servicing rights" } } }, "localname": "ServicingAssetAtFairValueAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/OtherAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensation": { "auth_ref": [ "r84" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows": { "order": 13.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of noncash expense for share-based payment arrangement.", "label": "Share-based Payment Arrangement, Noncash Expense", "terseLabel": "Share-based compensation" } } }, "localname": "ShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShortMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Indicates the sale of a borrowed security or written option.", "label": "Short [Member]", "terseLabel": "RPAs - protection sold" } } }, "localname": "ShortMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DerivativesHedgingActivitiesandBalanceSheetOffsettingDerivativesandHedgingActivitiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShortTermBorrowings": { "auth_ref": [ "r2", "r570", "r632" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.", "label": "Short-term Debt", "terseLabel": "Short-term borrowings" } } }, "localname": "ShortTermBorrowings", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsFinancialInstrumentsDetails", "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShortTermBorrowingsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Short-term Debt [Abstract]", "terseLabel": "Short-term Debt [Abstract]" } } }, "localname": "ShortTermBorrowingsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_ShortTermDebtLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Short-term Debt [Line Items]", "terseLabel": "Short-term Debt [Line Items]" } } }, "localname": "ShortTermDebtLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShortTermDebtTextBlock": { "auth_ref": [ "r326" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for short-term debt.", "label": "Short-term Debt [Text Block]", "terseLabel": "Short-Term Borrowings" } } }, "localname": "ShortTermDebtTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ShortTermBorrowings" ], "xbrltype": "textBlockItemType" }, "us-gaap_ShortTermDebtTypeAxis": { "auth_ref": [ "r18" ], "lang": { "en-US": { "role": { "documentation": "Information by type of short-term debt arrangement.", "label": "Short-term Debt, Type [Axis]", "terseLabel": "Short-term Debt, Type [Axis]" } } }, "localname": "ShortTermDebtTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ShortTermBorrowingsDetails", "http://www.midwestone.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShortTermDebtTypeDomain": { "auth_ref": [ "r15" ], "lang": { "en-US": { "role": { "documentation": "Type of short-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing.", "label": "Short-term Debt, Type [Domain]", "terseLabel": "Short-term Debt, Type [Domain]" } } }, "localname": "ShortTermDebtTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ShortTermBorrowingsDetails", "http://www.midwestone.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShortTermDebtWeightedAverageInterestRate": { "auth_ref": [ "r16" ], "lang": { "en-US": { "role": { "documentation": "Weighted average interest rate of short-term debt outstanding calculated at point in time.", "label": "Short-term Debt, Weighted Average Interest Rate, at Point in Time", "terseLabel": "Weighted Average Rate" } } }, "localname": "ShortTermDebtWeightedAverageInterestRate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShortTermLeaseCost": { "auth_ref": [ "r503", "r511" ], "calculation": { "http://www.midwestone.com/role/LeasesLeaseCostDetails": { "order": 5.0, "parentTag": "us-gaap_LeaseCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of short-term lease cost, excluding expense for lease with term of one month or less.", "label": "Short-term Lease, Cost", "terseLabel": "Short-term lease cost" } } }, "localname": "ShortTermLeaseCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SpecialMentionMember": { "auth_ref": [ "r187", "r262" ], "lang": { "en-US": { "role": { "documentation": "A category of financing receivables considered to have potential weaknesses that deserve management's close attention. If left uncorrected, those potential weaknesses may result in a deterioration of the repayment prospects for the asset or of the creditor's position at some future date.", "label": "Special Mention [Member]", "terseLabel": "Special mention / watch" } } }, "localname": "SpecialMentionMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "domainItemType" }, "us-gaap_StandbyLettersOfCreditMember": { "auth_ref": [ "r318", "r320", "r401", "r663" ], "lang": { "en-US": { "role": { "documentation": "An irrevocable undertaking (typically by a financial institution) to guarantee payment of a specified financial obligation.", "label": "Standby Letters of Credit [Member]", "terseLabel": "Standby letters of credit" } } }, "localname": "StandbyLettersOfCreditMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesScheduleofCommitmentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_StatementEquityComponentsAxis": { "auth_ref": [ "r24", "r101", "r102", "r103", "r108", "r118", "r120", "r139", "r230", "r327", "r332", "r360", "r361", "r362", "r377", "r378", "r478", "r479", "r480", "r481", "r482", "r483", "r651", "r652", "r653" ], "lang": { "en-US": { "role": { "documentation": "Information by component of equity.", "label": "Equity Components [Axis]", "terseLabel": "Equity Components [Axis]" } } }, "localname": "StatementEquityComponentsAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical", "http://www.midwestone.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_StatementLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Statement [Line Items]", "terseLabel": "Statement" } } }, "localname": "StatementLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical" ], "xbrltype": "stringItemType" }, "us-gaap_StatementOfCashFlowsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statement of Cash Flows [Abstract]", "terseLabel": "Statement of Cash Flows [Abstract]" } } }, "localname": "StatementOfCashFlowsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfFinancialPositionAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statement of Financial Position [Abstract]", "terseLabel": "Statement of Financial Position [Abstract]" } } }, "localname": "StatementOfFinancialPositionAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statement of Comprehensive Income [Abstract]", "terseLabel": "Statement of Comprehensive Income [Abstract]" } } }, "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfStockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statement of Stockholders' Equity [Abstract]", "terseLabel": "Statement of Stockholders' Equity [Abstract]" } } }, "localname": "StatementOfStockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementTable": { "auth_ref": [ "r101", "r102", "r103", "r139", "r553" ], "lang": { "en-US": { "role": { "documentation": "Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed.", "label": "Statement [Table]", "terseLabel": "Statement [Table]" } } }, "localname": "StatementTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical" ], "xbrltype": "stringItemType" }, "us-gaap_StockIssuedDuringPeriodSharesAcquisitions": { "auth_ref": [ "r6", "r7", "r332" ], "lang": { "en-US": { "role": { "documentation": "Number of shares of stock issued during the period pursuant to acquisitions.", "label": "Stock Issued During Period, Shares, Acquisitions", "terseLabel": "Issuance of common stock due to business combination (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesAcquisitions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross": { "auth_ref": [ "r327", "r332" ], "lang": { "en-US": { "role": { "documentation": "Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.", "label": "Stock Issued During Period, Shares, Restricted Stock Award, Gross", "terseLabel": "Release/lapse of restriction on RSUs (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesRestrictedStockAwardGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodValueAcquisitions": { "auth_ref": [ "r24", "r327", "r332" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Value of stock issued pursuant to acquisitions during the period.", "label": "Stock Issued During Period, Value, Acquisitions", "terseLabel": "Issuance of common stock due to business combination" } } }, "localname": "StockIssuedDuringPeriodValueAcquisitions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures": { "auth_ref": [ "r327", "r332" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Value of stock related to Restricted Stock Awards issued during the period, net of the stock value of such awards forfeited.", "label": "Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures", "terseLabel": "Release/lapse of restriction on RSUs" } } }, "localname": "StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquity": { "auth_ref": [ "r7", "r12", "r13", "r95", "r196", "r225", "r476" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.", "label": "Stockholders' Equity Attributable to Parent", "periodEndLabel": "Ending balance", "periodStartLabel": "Beginning balance", "totalLabel": "Total shareholders' equity" } } }, "localname": "StockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets", "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Stockholders' Equity Attributable to Parent [Abstract]", "terseLabel": "Shareholders' equity" } } }, "localname": "StockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_SubordinatedDebtMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "This element represents domestic or foreign subordinated debt. Subordinated debt has a lower priority of repayment in liquidation of the entity's assets.", "label": "Subordinated Debt [Member]", "terseLabel": "Subordinated debt" } } }, "localname": "SubordinatedDebtMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "http://www.midwestone.com/role/SubsequentEventsDetails", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.", "label": "Subsequent Event [Line Items]", "terseLabel": "Subsequent Event" } } }, "localname": "SubsequentEventLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventMember": { "auth_ref": [ "r484", "r514" ], "lang": { "en-US": { "role": { "documentation": "Identifies event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event [Member]", "terseLabel": "Subsequent event" } } }, "localname": "SubsequentEventMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "http://www.midwestone.com/role/SubsequentEventsDetails", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventTable": { "auth_ref": [ "r484", "r514" ], "lang": { "en-US": { "role": { "documentation": "Discloses pertinent information about one or more significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued.", "label": "Subsequent Event [Table]", "terseLabel": "Subsequent Event [Table]" } } }, "localname": "SubsequentEventTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventTypeAxis": { "auth_ref": [ "r484", "r514" ], "lang": { "en-US": { "role": { "documentation": "Information by event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event Type [Axis]", "terseLabel": "Subsequent Event Type [Axis]" } } }, "localname": "SubsequentEventTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "http://www.midwestone.com/role/SubsequentEventsDetails", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventTypeDomain": { "auth_ref": [ "r484", "r514" ], "lang": { "en-US": { "role": { "documentation": "Event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event Type [Domain]", "terseLabel": "Subsequent Event Type [Domain]" } } }, "localname": "SubsequentEventTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "http://www.midwestone.com/role/SubsequentEventsDetails", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Subsequent Events [Abstract]", "terseLabel": "Subsequent Events [Abstract]" } } }, "localname": "SubsequentEventsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventsTextBlock": { "auth_ref": [ "r513", "r516" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.", "label": "Subsequent Events [Text Block]", "terseLabel": "Subsequent Events" } } }, "localname": "SubsequentEventsTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SubsequentEvents" ], "xbrltype": "textBlockItemType" }, "us-gaap_SubsidiarySaleOfStockAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by type of sale of the entity's stock.", "label": "Sale of Stock [Axis]", "terseLabel": "Sale of Stock [Axis]" } } }, "localname": "SubsidiarySaleOfStockAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtSubordinatedDebenturesDetails", "http://www.midwestone.com/role/SubsequentEventsDetails", "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubstandardMember": { "auth_ref": [ "r187", "r262" ], "lang": { "en-US": { "role": { "documentation": "A category of financing receivables that are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the creditor will sustain some loss if the deficiencies are not corrected.", "label": "Substandard [Member]", "verboseLabel": "Substandard" } } }, "localname": "SubstandardMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SupplementalCashFlowInformationAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Supplemental Cash Flow Information [Abstract]", "terseLabel": "Supplemental disclosures of cash flow information:" } } }, "localname": "SupplementalCashFlowInformationAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_TierOneLeverageCapital": { "auth_ref": [ "r622" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of Tier 1 leverage capital as defined by regulatory framework.", "label": "Banking Regulation, Tier One Leverage Capital, Actual", "terseLabel": "Tier one leverage capital" } } }, "localname": "TierOneLeverageCapital", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacy": { "auth_ref": [ "r622", "r626" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of minimum Tier 1 leverage capital required for capital adequacy as defined by regulatory framework.", "label": "Banking Regulation, Tier One Leverage Capital, Capital Adequacy, Minimum", "terseLabel": "Tier one leverage capital required for capital adequacy" } } }, "localname": "TierOneLeverageCapitalRequiredForCapitalAdequacy", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets": { "auth_ref": [ "r622", "r626" ], "lang": { "en-US": { "role": { "documentation": "Ratio of minimum Tier 1 leverage capital to average assets required for capital adequacy as defined by regulatory framework.", "label": "Banking Regulation, Tier One Leverage Capital Ratio, Capital Adequacy, Minimum", "terseLabel": "Tier one leverage capital required for capital adequacy to average assets" } } }, "localname": "TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "pureItemType" }, "us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized": { "auth_ref": [ "r622" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of minimum Tier 1 leverage capital categorized as well capitalized as defined by regulatory framework for prompt corrective action.", "label": "Banking Regulation, Tier One Leverage Capital, Well Capitalized, Minimum", "terseLabel": "Tier one leverage capital required to be well capitalized" } } }, "localname": "TierOneLeverageCapitalRequiredToBeWellCapitalized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets": { "auth_ref": [ "r622" ], "lang": { "en-US": { "role": { "documentation": "Ratio of minimum Tier 1 leverage capital to average assets categorized as well capitalized as defined by regulatory framework for prompt corrective action.", "label": "Banking Regulation, Tier One Leverage Capital Ratio, Well Capitalized, Minimum", "terseLabel": "Tier one leverage capital required to be well capitalized to average assets" } } }, "localname": "TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "pureItemType" }, "us-gaap_TierOneLeverageCapitalToAverageAssets": { "auth_ref": [ "r622" ], "lang": { "en-US": { "role": { "documentation": "Ratio of Tier 1 capital to average assets as defined by regulatory framework.", "label": "Banking Regulation, Tier One Leverage Capital Ratio, Actual", "terseLabel": "Tier one leverage capital to average assets" } } }, "localname": "TierOneLeverageCapitalToAverageAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "pureItemType" }, "us-gaap_TierOneRiskBasedCapital": { "auth_ref": [ "r622" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of Tier 1 risk-based capital as defined by regulatory framework.", "label": "Banking Regulation, Tier One Risk-Based Capital, Actual", "terseLabel": "Tier one risk based capital" } } }, "localname": "TierOneRiskBasedCapital", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacy": { "auth_ref": [ "r622", "r626" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of minimum Tier 1 risk-based capital required for capital adequacy as defined by regulatory framework.", "label": "Banking Regulation, Tier One Risk-Based Capital, Capital Adequacy, Minimum", "terseLabel": "Tier one risk based capital required for capital adequacy" } } }, "localname": "TierOneRiskBasedCapitalRequiredForCapitalAdequacy", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets": { "auth_ref": [ "r622", "r626" ], "lang": { "en-US": { "role": { "documentation": "Ratio of minimum Tier 1 risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework.", "label": "Banking Regulation, Tier One Risk-Based Capital Ratio, Capital Adequacy, Minimum", "terseLabel": "Tier one risk based capital required for capital adequacy to risk weighted assets" } } }, "localname": "TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "pureItemType" }, "us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalized": { "auth_ref": [ "r622" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of minimum Tier 1 risk-based capital categorized as well capitalized as defined by regulatory framework for prompt corrective action.", "label": "Banking Regulation, Tier One Risk-Based Capital, Well Capitalized, Minimum", "terseLabel": "Tier one risk based capital required to be well capitalized" } } }, "localname": "TierOneRiskBasedCapitalRequiredToBeWellCapitalized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets": { "auth_ref": [ "r622" ], "lang": { "en-US": { "role": { "documentation": "Ratio of minimum Tier 1 risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action.", "label": "Banking Regulation, Tier One Risk-Based Capital Ratio, Well Capitalized, Minimum", "terseLabel": "Tier one risk based capital required to be well capitalized to risk weighted assets" } } }, "localname": "TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "pureItemType" }, "us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets": { "auth_ref": [ "r622" ], "lang": { "en-US": { "role": { "documentation": "Ratio of Tier 1 risk-based capital to risk-weighted assets as defined by regulatory framework.", "label": "Banking Regulation, Tier One Risk-Based Capital Ratio, Actual", "terseLabel": "Tier one risk based capital to risk weighted assets" } } }, "localname": "TierOneRiskBasedCapitalToRiskWeightedAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/RegulatoryCapitalRequirementsandRestrictionsonSubsidiaryCashDetails" ], "xbrltype": "pureItemType" }, "us-gaap_TransferToInvestments": { "auth_ref": [ "r90", "r91", "r92" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Value of investments transferred to the entity's investments in noncash transactions.", "label": "Transfer to Investments", "terseLabel": "Investment securities purchased but not settled" } } }, "localname": "TransferToInvestments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_TransferToOtherRealEstate": { "auth_ref": [ "r90", "r91", "r92" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Value transferred from mortgage loans to real estate owned (REO) in noncash transactions.", "label": "Real Estate Owned, Transfer to Real Estate Owned", "terseLabel": "Transfer of loans to foreclosed assets, net" } } }, "localname": "TransferToOtherRealEstate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain": { "auth_ref": [ "r213", "r214", "r517", "r518", "r519", "r520", "r521", "r522", "r523", "r524", "r525", "r526", "r527", "r528", "r529", "r531", "r533", "r537", "r538", "r539", "r540", "r541", "r542", "r543", "r544", "r545", "r546", "r547", "r548", "r549", "r550", "r551" ], "lang": { "en-US": { "role": { "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.", "label": "Financial Instruments [Domain]", "terseLabel": "Financial Instruments [Domain]" } } }, "localname": "TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails", "http://www.midwestone.com/role/CommitmentsandContingenciesScheduleofCommitmentsDetails", "http://www.midwestone.com/role/DebtSecuritiesAdditionalInformationDetails", "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails", "http://www.midwestone.com/role/DebtSecuritiesInvestmentsClassifiedbyContractualMaturityDetails", "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaNonrecurringBasisDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_TreasuryStockCommonShares": { "auth_ref": [ "r333" ], "lang": { "en-US": { "role": { "documentation": "Number of previously issued common shares repurchased by the issuing entity and held in treasury.", "label": "Treasury Stock, Common, Shares", "terseLabel": "Treasury stock (in shares)" } } }, "localname": "TreasuryStockCommonShares", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_TreasuryStockMember": { "auth_ref": [ "r23", "r333" ], "lang": { "en-US": { "role": { "documentation": "Shares of an entity that have been repurchased by the entity. This stock has no voting rights and receives no dividends. Note that treasury stock may be recorded at its total cost or separately as par (or stated) value and additional paid in capital. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer.", "label": "Treasury Stock [Member]", "terseLabel": "Treasury Stock" } } }, "localname": "TreasuryStockMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_TreasuryStockSharesAcquired": { "auth_ref": [ "r7", "r327", "r332" ], "lang": { "en-US": { "role": { "documentation": "Number of shares that have been repurchased during the period and are being held in treasury.", "label": "Treasury Stock, Shares, Acquired", "terseLabel": "Repurchase of common stock (in shares)" } } }, "localname": "TreasuryStockSharesAcquired", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquityParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_TreasuryStockValue": { "auth_ref": [ "r23", "r333", "r334" ], "calculation": { "http://www.midwestone.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_StockholdersEquity", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.", "label": "Treasury Stock, Value", "negatedTerseLabel": "Treasury stock at cost, 481,693 and 418,841 shares" } } }, "localname": "TreasuryStockValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_TreasuryStockValueAcquiredCostMethod": { "auth_ref": [ "r327", "r332", "r333" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.", "label": "Treasury Stock, Value, Acquired, Cost Method", "negatedTerseLabel": "Repurchase of common stock" } } }, "localname": "TreasuryStockValueAcquiredCostMethod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock": { "auth_ref": [ "r189", "r190" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of financing receivable modified as troubled debt restructuring.", "label": "Financing Receivable, Troubled Debt Restructuring [Table Text Block]", "terseLabel": "Schedule of TDRs by Class of Financing Receivable" } } }, "localname": "TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_TypeOfAdoptionMember": { "auth_ref": [ "r107", "r108", "r109", "r111", "r227", "r228", "r229", "r230", "r233", "r234", "r356", "r357", "r358", "r359", "r360", "r361", "r362", "r364", "r375", "r376", "r377", "r378", "r555", "r556", "r557", "r649", "r650", "r651", "r652", "r653", "r654", "r655", "r656", "r657", "r658", "r659", "r660" ], "lang": { "en-US": { "role": { "documentation": "Amendment to accounting standards.", "label": "Accounting Standards Update [Domain]", "terseLabel": "Type of Adoption [Domain]" } } }, "localname": "TypeOfAdoptionMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "domainItemType" }, "us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember": { "auth_ref": [ "r610" ], "lang": { "en-US": { "role": { "documentation": "This category includes information about debt issued by US Government Corporations and Agencies. Investments in such US Government Corporations may include debt securities issued by the Government National Mortgage Association (Ginnie Mae) and by the Federal National Mortgage Association (Fannie Mae) and the Federal Home Loan Mortgage Corporation (Freddie Mac).", "label": "US Government Corporations and Agencies Securities [Member]", "terseLabel": "U.S. Government agencies and corporations" } } }, "localname": "USGovernmentCorporationsAndAgenciesSecuritiesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_USStatesAndPoliticalSubdivisionsMember": { "auth_ref": [ "r341", "r661" ], "lang": { "en-US": { "role": { "documentation": "Bonds or similar securities issued by state, city, or local US governments or the agencies operated by state, city, or local governments. Debt securities issued by state governments may include bond issuances of US state authorities including, for example, but not limited to, housing authorities, dormitory authorities, and general obligations while debt securities issued by political subdivisions of US states would include, for example, debt issuances by county, borough, city, or municipal governments.", "label": "US States and Political Subdivisions Debt Securities [Member]", "terseLabel": "State and political subdivisions" } } }, "localname": "USStatesAndPoliticalSubdivisionsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/CommitmentsandContingenciesAdditionalInformationDetails", "http://www.midwestone.com/role/DebtSecuritiesAdditionalInformationDetails", "http://www.midwestone.com/role/DebtSecuritiesAvailableforSaleSecuritiesinContinuousLossPositionDetails", "http://www.midwestone.com/role/DebtSecuritiesScheduleofAvailableforSaleSecuritiesDetails", "http://www.midwestone.com/role/FairValueofFinancialInstrumentsandFairValueMeasurementsMeasuredonaRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_UnlikelyToBeCollectedFinancingReceivableMember": { "auth_ref": [ "r187", "r262" ], "lang": { "en-US": { "role": { "documentation": "Financing arrangement that represents a contractual right to receive money either on demand or on fixed or determinable dates that are considered uncollectible or of little value. Excludes no recovery or salvage value.", "label": "Unlikely to be Collected Financing Receivable [Member]", "terseLabel": "Loss" } } }, "localname": "UnlikelyToBeCollectedFinancingReceivableMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesLoansbyCreditQualityIndicatorDetails" ], "xbrltype": "domainItemType" }, "us-gaap_UnusualOrInfrequentItemAxis": { "auth_ref": [ "r65" ], "lang": { "en-US": { "role": { "documentation": "Information by an event or transaction that is unusual in nature or infrequent in occurrence, or both.", "label": "Unusual or Infrequent Item, or Both [Axis]", "terseLabel": "Unusual or Infrequent Item, or Both [Axis]" } } }, "localname": "UnusualOrInfrequentItemAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "stringItemType" }, "us-gaap_UnusualOrInfrequentItemDomain": { "auth_ref": [ "r65" ], "lang": { "en-US": { "role": { "documentation": "Event or transaction that is unusual in nature or infrequent in occurrence, or both.", "label": "Unusual or Infrequent Item, or Both [Domain]", "terseLabel": "Unusual or Infrequent Item, or Both [Domain]" } } }, "localname": "UnusualOrInfrequentItemDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LoansReceivableandtheAllowanceforCreditLossesTDRDisclosuresDetails" ], "xbrltype": "domainItemType" }, "us-gaap_UseOfEstimates": { "auth_ref": [ "r140", "r141", "r142", "r143", "r148", "r149", "r150" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.", "label": "Use of Estimates, Policy [Policy Text Block]", "terseLabel": "Use of Estimates" } } }, "localname": "UseOfEstimates", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_VariableLeaseCost": { "auth_ref": [ "r504", "r511" ], "calculation": { "http://www.midwestone.com/role/LeasesLeaseCostDetails": { "order": 2.0, "parentTag": "us-gaap_LeaseCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.", "label": "Variable Lease, Cost", "terseLabel": "Variable lease cost" } } }, "localname": "VariableLeaseCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LeasesLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_VariableRateAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by type of variable rate.", "label": "Variable Rate [Axis]", "terseLabel": "Variable Rate [Axis]" } } }, "localname": "VariableRateAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails", "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_VariableRateDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index.", "label": "Variable Rate [Domain]", "terseLabel": "Variable Rate [Domain]" } } }, "localname": "VariableRateDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/LongTermDebtJuniorSubordinatedNotesDetails", "http://www.midwestone.com/role/ShortTermBorrowingsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": { "auth_ref": [ "r125", "r130" ], "lang": { "en-US": { "role": { "documentation": "The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.", "label": "Weighted Average Number of Shares Outstanding, Diluted", "terseLabel": "Weighted average shares outstanding, including all dilutive potential shares (in shares)" } } }, "localname": "WeightedAverageNumberOfDilutedSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EarningsperShareDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": { "auth_ref": [ "r124", "r130" ], "lang": { "en-US": { "role": { "documentation": "Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.", "label": "Weighted Average Number of Shares Outstanding, Basic", "terseLabel": "Weighted average shares outstanding (in shares)" } } }, "localname": "WeightedAverageNumberOfSharesOutstandingBasic", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.midwestone.com/role/EarningsperShareDetails" ], "xbrltype": "sharesItemType" } }, "unitCount": 7 } }, "std_ref": { "r0": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760" }, "r1": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(17))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r10": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30)(a)(3))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r100": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "235", "URI": "http://asc.fasb.org/topic&trid=2122369" }, "r101": { "Name": "Accounting Standards Codification", "Paragraph": "23", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21914-107793" }, "r102": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21930-107793" }, "r103": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21711-107793" }, "r104": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21728-107793" }, "r105": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r106": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(1)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r107": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(2)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r108": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(3)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r109": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(4)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r11": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30)(a)(4))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r110": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r111": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r112": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r113": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794" }, "r114": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794" }, "r115": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794" }, "r116": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22595-107794" }, "r117": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794" }, "r118": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794" }, "r119": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22658-107794" }, "r12": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r120": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794" }, "r121": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 11.M.Q2)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=112272810&loc=d3e31137-122693" }, "r122": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=112272810&loc=SL108384541-122693" }, "r123": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "250", "URI": "http://asc.fasb.org/topic&trid=2122394" }, "r124": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1448-109256" }, "r125": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1505-109256" }, "r126": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1252-109256" }, "r127": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256" }, "r128": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256" }, "r129": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1337-109256" }, "r13": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(31))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r130": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257" }, "r131": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257" }, "r132": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257" }, "r133": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537" }, "r134": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=120380238&loc=d3e3842-109258" }, "r135": { "Name": "Accounting Standards Codification", "Paragraph": "52", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=120380238&loc=d3e4984-109258" }, "r136": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "260", "URI": "http://asc.fasb.org/topic&trid=2144383" }, "r137": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "270", "URI": "http://asc.fasb.org/extlink&oid=116846552&loc=d3e725-108305" }, "r138": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "270", "URI": "http://asc.fasb.org/extlink&oid=116846552&loc=d3e765-108305" }, "r139": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "272", "URI": "http://asc.fasb.org/extlink&oid=6828210&loc=d3e70191-108054" }, "r14": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(32))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r140": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r141": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r142": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6161-108592" }, "r143": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6191-108592" }, "r144": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6327-108592" }, "r145": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592" }, "r146": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592" }, "r147": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6442-108592" }, "r148": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6061-108592" }, "r149": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6132-108592" }, "r15": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r150": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6143-108592" }, "r151": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "275", "URI": "http://asc.fasb.org/topic&trid=2134479" }, "r152": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599" }, "r153": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r154": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r155": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r156": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r157": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8864-108599" }, "r158": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8864-108599" }, "r159": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8864-108599" }, "r16": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r160": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8864-108599" }, "r161": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8864-108599" }, "r162": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8864-108599" }, "r163": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599" }, "r164": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599" }, "r165": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599" }, "r166": { "Name": "Accounting Standards Codification", "Paragraph": "31", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599" }, "r167": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599" }, "r168": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599" }, "r169": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599" }, "r17": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19(b),22(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r170": { "Name": "Accounting Standards Codification", "Paragraph": "41", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599" }, "r171": { "Name": "Accounting Standards Codification", "Paragraph": "42", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599" }, "r172": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522" }, "r173": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r174": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r175": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(3)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r176": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(4)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r177": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r178": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r179": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r18": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r180": { "Name": "Accounting Standards Codification", "Paragraph": "14A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953550-111524" }, "r181": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(3)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524" }, "r182": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(4)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524" }, "r183": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524" }, "r184": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524" }, "r185": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524" }, "r186": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5258-111524" }, "r187": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953659-111524" }, "r188": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5066-111524" }, "r189": { "Name": "Accounting Standards Codification", "Paragraph": "33", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524" }, "r19": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19,20,22)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r190": { "Name": "Accounting Standards Codification", "Paragraph": "34", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524" }, "r191": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524" }, "r192": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524" }, "r193": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524" }, "r194": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524" }, "r195": { "Name": "Accounting Standards Codification", "Paragraph": "7A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953401-111524" }, "r196": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 4.E)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707" }, "r197": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/subtopic&trid=2196772" }, "r198": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=84159169&loc=d3e10152-111534" }, "r199": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "30", "Topic": "310", "URI": "http://asc.fasb.org/subtopic&trid=2196854" }, "r2": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(19)(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r20": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19-26)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r200": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121585226&loc=d3e18794-111554" }, "r201": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554" }, "r202": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121553693&loc=d3e26610-111562" }, "r203": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121553693&loc=d3e26853-111562" }, "r204": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=SL6283291-111563" }, "r205": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563" }, "r206": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(aa)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563" }, "r207": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(aaa)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563" }, "r208": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563" }, "r209": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563" }, "r21": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.22(a)(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r210": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563" }, "r211": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563" }, "r212": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563" }, "r213": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27232-111563" }, "r214": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=SL120269820-111563" }, "r215": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563" }, "r216": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563" }, "r217": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(3)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563" }, "r218": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563" }, "r219": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27337-111563" }, "r22": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.22)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r220": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27340-111563" }, "r221": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27357-111563" }, "r222": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)-(d)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27357-111563" }, "r223": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27357-111563" }, "r224": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "320", "URI": "http://asc.fasb.org/topic&trid=2196928" }, "r225": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r226": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "35", "SubTopic": "30", "Topic": "325", "URI": "http://asc.fasb.org/extlink&oid=6384439&loc=d3e42048-111605" }, "r227": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r228": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r229": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r23": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.29,30)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r230": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r231": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(1)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r232": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(2)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r233": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(3)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r234": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(4)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r235": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "30", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647444&loc=SL120269210-210444" }, "r236": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "30", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647444&loc=SL120254536-210444" }, "r237": { "Name": "Accounting Standards Codification", "Paragraph": "8A", "Publisher": "FASB", "Section": "35", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121648281&loc=SL120267834-210445" }, "r238": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446" }, "r239": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599878&loc=SL82919202-210446" }, "r24": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.29-31)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r240": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599878&loc=SL120267845-210446" }, "r241": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919244-210447" }, "r242": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447" }, "r243": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447" }, "r244": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447" }, "r245": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(e)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447" }, "r246": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(f)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447" }, "r247": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447" }, "r248": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447" }, "r249": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447" }, "r25": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.3(a)(4))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r250": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447" }, "r251": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447" }, "r252": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447" }, "r253": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447" }, "r254": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919260-210447" }, "r255": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919265-210447" }, "r256": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919265-210447" }, "r257": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919265-210447" }, "r258": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919272-210447" }, "r259": { "Name": "Accounting Standards Codification", "Paragraph": "3C", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL120267966-210447" }, "r26": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.3,4)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r260": { "Name": "Accounting Standards Codification", "Paragraph": "3D", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL120267969-210447" }, "r261": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447" }, "r262": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447" }, "r263": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919232-210447" }, "r264": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82921830-210448" }, "r265": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82921833-210448" }, "r266": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82921835-210448" }, "r267": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82921835-210448" }, "r268": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(e)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82921835-210448" }, "r269": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82921842-210448" }, "r27": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.8)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r270": { "Name": "Accounting Standards Codification", "Paragraph": "79", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448" }, "r271": { "Name": "Accounting Standards Codification", "Paragraph": "80", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448" }, "r272": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/subtopic&trid=82887181" }, "r273": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "30", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121614247&loc=SL120267897-210452" }, "r274": { "Name": "Accounting Standards Codification", "Paragraph": "13A", "Publisher": "FASB", "Section": "35", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121565518&loc=SL120267917-210453" }, "r275": { "Name": "Accounting Standards Codification", "Paragraph": "7A", "Publisher": "FASB", "Section": "35", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121565518&loc=SL120269220-210453" }, "r276": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454" }, "r277": { "Name": "Accounting Standards Codification", "Paragraph": "3A", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL120267853-210455" }, "r278": { "Name": "Accounting Standards Codification", "Paragraph": "3C", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL120267859-210455" }, "r279": { "Name": "Accounting Standards Codification", "Paragraph": "3D", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL120267862-210455" }, "r28": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX210.5-02(13))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r280": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(1)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455" }, "r281": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(2)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455" }, "r282": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(3)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455" }, "r283": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455" }, "r284": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922890-210455" }, "r285": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922895-210455" }, "r286": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922900-210455" }, "r287": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(i)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922900-210455" }, "r288": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922900-210455" }, "r289": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456" }, "r29": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312" }, "r290": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/subtopic&trid=82887182" }, "r291": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266" }, "r292": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975" }, "r293": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267" }, "r294": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267" }, "r295": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267" }, "r296": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274" }, "r297": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274" }, "r298": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r299": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r3": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(19))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r30": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312" }, "r300": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "((a)(1),(b))", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r301": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r302": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(1)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r303": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(2)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r304": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(3)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r305": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r306": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r307": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b),(d)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275" }, "r308": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "350", "URI": "http://asc.fasb.org/topic&trid=2144416" }, "r309": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r31": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312" }, "r310": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230" }, "r311": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230" }, "r312": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308" }, "r313": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308" }, "r314": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "440", "URI": "http://asc.fasb.org/topic&trid=2144648" }, "r315": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14615-108349" }, "r316": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "450", "URI": "http://asc.fasb.org/topic&trid=2127136" }, "r317": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=121611286&loc=d3e11927-110247" }, "r318": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=121555522&loc=d3e12021-110248" }, "r319": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(4)", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=121555522&loc=d3e12069-110248" }, "r32": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(1)(i)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312" }, "r320": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=121596127&loc=d3e12803-110250" }, "r321": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=99376301&loc=d3e1398-112600" }, "r322": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=6802200&loc=SL6230698-112601" }, "r323": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(1)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870" }, "r324": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870" }, "r325": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=120520924&loc=SL6036836-161870" }, "r326": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "470", "URI": "http://asc.fasb.org/topic&trid=2208564" }, "r327": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644" }, "r328": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644" }, "r329": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644" }, "r33": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(2)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312" }, "r330": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644" }, "r331": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644" }, "r332": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.3-04)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770" }, "r333": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655" }, "r334": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656" }, "r335": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r336": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(g)(2)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=113356391&loc=SL49131195-203048" }, "r337": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(i)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=113356391&loc=SL49131195-203048" }, "r338": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(i)(2)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=113356391&loc=SL49131195-203048" }, "r339": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(j)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=113356391&loc=SL49131195-203048" }, "r34": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(e)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312" }, "r340": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(i)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r341": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(ii)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r342": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(01)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r343": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r344": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)(A)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r345": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)(B)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r346": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)(C)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r347": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(03)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r348": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921" }, "r349": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(a)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947" }, "r35": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313" }, "r350": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(d)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947" }, "r351": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(f)(3)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947" }, "r352": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(a)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450673-114947" }, "r353": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "80", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948" }, "r354": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "35", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121326096&loc=d3e4534-113899" }, "r355": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901" }, "r356": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r357": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r358": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r359": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r36": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226016-175313" }, "r360": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r361": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(f)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r362": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(f)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r363": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(g)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r364": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(g)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r365": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120383193&loc=d3e11149-113907" }, "r366": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120383193&loc=d3e11178-113907" }, "r367": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=120406818&loc=d3e31917-109318" }, "r368": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=120406818&loc=d3e31931-109318" }, "r369": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32672-109319" }, "r37": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313" }, "r370": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319" }, "r371": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32705-109319" }, "r372": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32809-109319" }, "r373": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32857-109319" }, "r374": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319" }, "r375": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740" }, "r376": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740" }, "r377": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)(2)", "Topic": "740" }, "r378": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)(3)", "Topic": "740" }, "r379": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(1)", "Topic": "740" }, "r38": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226003-175313" }, "r380": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(2)", "Topic": "740" }, "r381": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(3)", "Topic": "740" }, "r382": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB TOPIC 6.I.5.Q1)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817" }, "r383": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB TOPIC 6.I.7)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817" }, "r384": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 6.I.7)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817" }, "r385": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 6.I.Fact.1)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817" }, "r386": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 6.I.Fact.2)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817" }, "r387": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 6.I.Fact.4)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817" }, "r388": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 11.C)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330215-122817" }, "r389": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=120385591&loc=d3e38679-109324" }, "r39": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226006-175313" }, "r390": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "270", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338" }, "r391": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331" }, "r392": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "740", "URI": "http://asc.fasb.org/topic&trid=2144680" }, "r393": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "25", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116868678&loc=d3e961-128460" }, "r394": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r395": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463" }, "r396": { "Name": "Accounting Standards Codification", "Paragraph": "37", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=121600890&loc=d3e2207-128464" }, "r397": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472" }, "r398": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=121598580&loc=d3e5333-128473" }, "r399": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(1)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479" }, "r4": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(20))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r40": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r400": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(4)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479" }, "r401": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "15", "SubTopic": "10", "Subparagraph": "(f)(2)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116873149&loc=d3e923-111674" }, "r402": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683" }, "r403": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569643-111683" }, "r404": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988" }, "r405": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988" }, "r406": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(3)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r407": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c),(3)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r408": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4582445-111684" }, "r409": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bb)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685" }, "r41": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r410": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685" }, "r411": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "810", "URI": "http://asc.fasb.org/topic&trid=2197479" }, "r412": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5579240-113959" }, "r413": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959" }, "r414": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959" }, "r415": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959" }, "r416": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)(i)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41620-113959" }, "r417": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)(ii)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41620-113959" }, "r418": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41620-113959" }, "r419": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41638-113959" }, "r42": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r420": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959" }, "r421": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959" }, "r422": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(2)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959" }, "r423": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959" }, "r424": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a),(c)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959" }, "r425": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959" }, "r426": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959" }, "r427": { "Name": "Accounting Standards Codification", "Paragraph": "4C", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959" }, "r428": { "Name": "Accounting Standards Codification", "Paragraph": "4C", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959" }, "r429": { "Name": "Accounting Standards Codification", "Paragraph": "4C", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959" }, "r43": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580" }, "r430": { "Name": "Accounting Standards Codification", "Paragraph": "4C", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959" }, "r431": { "Name": "Accounting Standards Codification", "Paragraph": "4C", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959" }, "r432": { "Name": "Accounting Standards Codification", "Paragraph": "4CC", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL109998890-113959" }, "r433": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624177-113959" }, "r434": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(5)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624177-113959" }, "r435": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624177-113959" }, "r436": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624177-113959" }, "r437": { "Name": "Accounting Standards Codification", "Paragraph": "4E", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624181-113959" }, "r438": { "Name": "Accounting Standards Codification", "Paragraph": "4EE", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL109999712-113959" }, "r439": { "Name": "Accounting Standards Codification", "Paragraph": "4EE", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL109999712-113959" }, "r44": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e640-108580" }, "r440": { "Name": "Accounting Standards Codification", "Paragraph": "4F", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624186-113959" }, "r441": { "Name": "Accounting Standards Codification", "Paragraph": "4H", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624258-113959" }, "r442": { "Name": "Accounting Standards Codification", "Paragraph": "4H", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624258-113959" }, "r443": { "Name": "Accounting Standards Codification", "Paragraph": "4K", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(4)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5708775-113959" }, "r444": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41641-113959" }, "r445": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41675-113959" }, "r446": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41678-113959" }, "r447": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41678-113959" }, "r448": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41678-113959" }, "r449": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41678-113959" }, "r45": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e681-108580" }, "r450": { "Name": "Accounting Standards Codification", "Paragraph": "182", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121582272&loc=SL5629052-113961" }, "r451": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121577181&loc=SL110061190-113977" }, "r452": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "25", "Subparagraph": "(a)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121577467&loc=d3e76258-113986" }, "r453": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "25", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121577467&loc=d3e76258-113986" }, "r454": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(c)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121549185&loc=d3e80748-113994" }, "r455": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "815", "URI": "http://asc.fasb.org/topic&trid=2229140" }, "r456": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r457": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r458": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bb)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r459": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r46": { "Name": "Accounting Standards Codification", "Paragraph": "14A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580" }, "r460": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)(1)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r461": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)(2)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r462": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r463": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r464": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258" }, "r465": { "Name": "Accounting Standards Codification", "Paragraph": "6A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258" }, "r466": { "Name": "Accounting Standards Codification", "Paragraph": "6A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258" }, "r467": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "60", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=7493716&loc=d3e21868-110260" }, "r468": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=116690757&loc=d3e13220-108610" }, "r469": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13279-108611" }, "r47": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e689-108580" }, "r470": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611" }, "r471": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13467-108611" }, "r472": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13476-108611" }, "r473": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13531-108611" }, "r474": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611" }, "r475": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611" }, "r476": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612" }, "r477": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "230", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906" }, "r478": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900" }, "r479": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r48": { "Name": "Accounting Standards Codification", "Paragraph": "17A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL34724391-108580" }, "r480": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r481": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(c)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r482": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r483": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901" }, "r484": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32618-110901" }, "r485": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391" }, "r486": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=119993939&loc=d3e28541-108399" }, "r487": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399" }, "r488": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399" }, "r489": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400" }, "r49": { "Name": "Accounting Standards Codification", "Paragraph": "17B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL34724394-108580" }, "r490": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=121616839&loc=d3e45280-112737" }, "r491": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=121616839&loc=d3e45280-112737" }, "r492": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(4)", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=121568338&loc=d3e45377-112738" }, "r493": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121329987&loc=SL77916155-209984" }, "r494": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977" }, "r495": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977" }, "r496": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918631-209977" }, "r497": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977" }, "r498": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918643-209977" }, "r499": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918643-209977" }, "r5": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(22))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r50": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580" }, "r500": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918643-209977" }, "r501": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r502": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r503": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r504": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r505": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(1)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r506": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(2)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r507": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(3)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r508": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(4)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r509": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r51": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580" }, "r510": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980" }, "r511": { "Name": "Accounting Standards Codification", "Paragraph": "53", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971" }, "r512": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/subtopic&trid=77888251" }, "r513": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "855", "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662" }, "r514": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "855", "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662" }, "r515": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "855", "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314020-165662" }, "r516": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "855", "URI": "http://asc.fasb.org/topic&trid=2122774" }, "r517": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)(i)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r518": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)(ii)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r519": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r52": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580" }, "r520": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r521": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r522": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r523": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r524": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r525": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r526": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r527": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r528": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r529": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r53": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669625-108580" }, "r530": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719" }, "r531": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728" }, "r532": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(1)(i)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729" }, "r533": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729" }, "r534": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "50", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=6469459&loc=d3e122492-111745" }, "r535": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "50", "Subparagraph": "(a)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745" }, "r536": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "50", "Subparagraph": "(b)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745" }, "r537": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746" }, "r538": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746" }, "r539": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746" }, "r54": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669625-108580" }, "r540": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(4)(i)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746" }, "r541": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r542": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r543": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r544": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(4)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r545": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(5)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r546": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(6)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r547": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(7)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r548": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(b)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r549": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r55": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e557-108580" }, "r550": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r551": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r552": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "910", "URI": "http://asc.fasb.org/extlink&oid=119991564&loc=SL119991595-234733" }, "r553": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 11.L)", "Topic": "924", "URI": "http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856" }, "r554": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959" }, "r555": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r556": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r557": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r558": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(f)(1)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r559": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(f)(2)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r56": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(1)(e))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868656-224227" }, "r560": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(f)(3)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r561": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "340", "Topic": "928", "URI": "http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004" }, "r562": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "25", "SubTopic": "20", "Topic": "940", "URI": "http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953" }, "r563": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "320", "Topic": "940", "URI": "http://asc.fasb.org/subtopic&trid=2176304" }, "r564": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "210", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117340910&loc=d3e59706-112781" }, "r565": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "210", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=116631393&loc=SL116631396-227033" }, "r566": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(1))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r567": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(10)(1))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r568": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(10))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r569": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(11))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r57": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(210.5-03(11))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r570": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(13))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r571": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(16))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r572": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(23))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r573": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(6))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r574": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(7)(2))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r575": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.1,2,3)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r576": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.10(4))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r577": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.10)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r578": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.12)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r579": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.13(3)(a))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r58": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(10))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r580": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.15)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r581": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.16)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r582": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.2)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r583": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.3)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r584": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.7)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r585": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(13))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r586": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(15))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r587": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(22))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r588": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(26))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r589": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(27))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r59": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(20))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r590": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.1)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r591": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.1-5)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r592": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.10)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r593": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.11)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r594": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.12)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r595": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.13(c),(d))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r596": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.13(h))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r597": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.13)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r598": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.14(b))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r599": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.14(d))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r6": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(28))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r60": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(24))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r600": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.14)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r601": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.2)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r602": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.4)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r603": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.6)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r604": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.7)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r605": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.8)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r606": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.9)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r607": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "230", "Subparagraph": "(b)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=121551529&loc=d3e60009-112784" }, "r608": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "235", "Subparagraph": "(SX 210.9-05(b)(1))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884" }, "r609": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "235", "Subparagraph": "(SX 210.9-05(b)(2))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884" }, "r61": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(25))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r610": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Subparagraph": "(b)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120252992&loc=d3e62557-112803" }, "r611": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120252992&loc=d3e62557-112803" }, "r612": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120252992&loc=d3e62586-112803" }, "r613": { "Name": "Accounting Standards Codification", "Paragraph": "3A", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120252992&loc=SL120269850-112803" }, "r614": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "320", "Topic": "942", "URI": "http://asc.fasb.org/subtopic&trid=2209399" }, "r615": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "325", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=75031641&loc=d3e63345-112809" }, "r616": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "405", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818" }, "r617": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "470", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=75038535&loc=d3e64684-112823" }, "r618": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "470", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823" }, "r619": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Subparagraph": "(a)(1)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826" }, "r62": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(b)(4))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r620": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Subparagraph": "(a)(2)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826" }, "r621": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Subparagraph": "(b)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826" }, "r622": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Subparagraph": "(c)(1)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826" }, "r623": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Subparagraph": "(c)(2)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826" }, "r624": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Subparagraph": "(e)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826" }, "r625": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958569-112826" }, "r626": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826" }, "r627": { "Name": "Accounting Standards Codification", "Paragraph": "1D", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958573-112826" }, "r628": { "Name": "Accounting Standards Codification", "Paragraph": "1F", "Publisher": "FASB", "Section": "50", "SubTopic": "505", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=117337116&loc=SL5958575-112826" }, "r629": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(16))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r63": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.4)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r630": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(10))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r631": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(12))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r632": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(16)(a)(1))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r633": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(16))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r634": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(23)(a)(3))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r635": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r636": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(25))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r637": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03.16)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r638": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03.5(c))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r639": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(18))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r64": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.6)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r640": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(22))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r641": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(23))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r642": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(4))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r643": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(8))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r644": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(9))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r645": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04.3(a))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r646": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04.4)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r647": { "Name": "Accounting Standards Codification", "Paragraph": "7A", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Subparagraph": "(d)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121643868&loc=SL117782755-158439" }, "r648": { "Name": "Accounting Standards Codification", "Paragraph": "29F", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121639165&loc=SL117819544-158441" }, "r649": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(a)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r65": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=114868883&loc=SL114871943-224233" }, "r650": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(b)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r651": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(e)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r652": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)(1)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r653": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)(2)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r654": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(1)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r655": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(i)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r656": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(ii)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r657": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(iii)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r658": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(iv)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r659": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(h)(1)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r66": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3151-108585" }, "r660": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(h)(2)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r661": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(e)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121641442&loc=d3e19393-158473" }, "r662": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "825", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=99380617&loc=SL75241803-196195" }, "r663": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=66023616&loc=SL35737432-115832" }, "r664": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "220", "Subparagraph": "(k)", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=118262090&loc=SL114874205-224268" }, "r665": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.6-07.2(a),(b),(c),(d))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=120401555&loc=SL114874292-224272" }, "r666": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "320", "Topic": "946", "URI": "http://asc.fasb.org/subtopic&trid=2324412" }, "r667": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "948", "URI": "http://asc.fasb.org/extlink&oid=6490092&loc=d3e47080-110998" }, "r668": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "948", "URI": "http://asc.fasb.org/extlink&oid=6490092&loc=d3e47304-110998" }, "r669": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "310", "Topic": "948", "URI": "http://asc.fasb.org/extlink&oid=120238483&loc=d3e48678-111004" }, "r67": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585" }, "r670": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b" }, "r671": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "d1-1" }, "r672": { "Name": "Form 10-Q", "Number": "240", "Publisher": "SEC", "Section": "13", "Subsection": "a-13" }, "r673": { "Name": "Forms 10-K, 10-Q, 20-F", "Number": "240", "Publisher": "SEC", "Section": "13", "Subsection": "a-1-" }, "r674": { "Name": "Regulation 12B", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b-2" }, "r675": { "Name": "Regulation S-T", "Number": "232", "Publisher": "SEC", "Section": "405" }, "r68": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585" }, "r69": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585" }, "r7": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(29))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r70": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585" }, "r71": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585" }, "r72": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585" }, "r73": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585" }, "r74": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585" }, "r75": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585" }, "r76": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585" }, "r77": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3367-108585" }, "r78": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3461-108585" }, "r79": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3521-108585" }, "r8": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(3))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r80": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585" }, "r81": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585" }, "r82": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585" }, "r83": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585" }, "r84": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585" }, "r85": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585" }, "r86": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585" }, "r87": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3044-108585" }, "r88": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3095-108585" }, "r89": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4297-108586" }, "r9": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30)(a)(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r90": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586" }, "r91": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4313-108586" }, "r92": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586" }, "r93": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=SL98516268-108586" }, "r94": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790" }, "r95": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(g)(1)(ii))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r96": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(h))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r97": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(e),(f))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r98": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(n))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r99": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-04(a))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690" } }, "version": "2.1" }