$MSBI
Midland States Bancorp Inc Stock $msbi

$msbi Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000146602623000006 Filed on February 24, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue
YoY Change
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$1.200M	$2.602M	$4.800M
YoY Change	-7.69%	-25.66%	-12.73%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$35.04M		$56.02M
YoY Change	491.71%		85.85%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$28.67M	$43.90M	$129.8M
YoY Change	4.66%	43.47%	31.0%
Income Tax	$6.894M	$11.03M	$30.81M
% Of Pretax Income	24.05%	25.12%	23.73%
Net Earnings	$21.77M	$29.34M	$99.03M
YoY Change	4.93%	26.94%	21.78%
Net Earnings / Revenue
Basic Earnings Per Share	$0.86		$4.24
Diluted Earnings Per Share	$0.86	$1.31	$4.23
COMMON SHARES
Basic Shares Outstanding	22.23M shares	22.15M shares	22.34M shares
Diluted Shares Outstanding	22.50M shares		22.40M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$950.6M	$918.6M
YoY Change	-19.53%	-42.12%
Cash & Equivalents	$138.3M	$150.3M
Short-Term Investments	$812.3M	$768.2M
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$80.58M	$78.29M	$78.29M
YoY Change	15.54%	-1.17%	-1.15%
Goodwill	$161.9M	$161.9M
YoY Change	0.0%	0.0%
Intangibles	$19.58M	$20.87M
YoY Change	-14.8%	-14.39%
Long-Term Investments	$53.13M	$46.20M	$46.20M
YoY Change	45.76%	27.28%	27.28%
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$7.930B	$7.856B	$7.856B
YoY Change	8.06%	5.53%	5.53%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$66.17M	$80.22M	$80.22M
YoY Change	545.09%	649.69%	649.69%
Deferred Revenue
YoY Change
Short-Term Debt	$31.17M	$42.31M	$42.31M
YoY Change	-48.35%	-44.91%	-44.91%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$97.35M	$80.22M	$80.22M
YoY Change	848.98%	649.69%	649.69%
LONG-TERM LIABILITIES
Long-Term Debt	$150.0M	$149.7M	$149.7M
YoY Change	-20.52%	-20.56%	-20.56%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$150.0M	$149.7M	$149.7M
YoY Change	-41.28%	-44.89%	-44.89%
TOTAL LIABILITIES
Total Short-Term Liabilities	$97.35M	$80.22M	$80.22M
Total Long-Term Liabilities	$150.0M	$149.7M	$149.7M
Total Liabilities	$7.155B	$7.097B	$7.097B
YoY Change	6.88%	4.67%	4.67%
SHAREHOLDERS EQUITY
Retained Earnings	$295.2M	$282.4M
YoY Change	30.18%	32.91%
Common Stock	$221.0K	$222.0K
YoY Change	0.45%	0.45%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$775.6M	$758.6M	$758.6M
YoY Change
Total Liabilities & Shareholders Equity	$7.930B	$7.856B	$7.856B
YoY Change	8.06%	5.53%	5.53%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$21.77M	$29.34M	$99.03M
YoY Change	4.93%	26.94%	21.78%
Depreciation, Depletion And Amortization	$1.200M	$2.602M	$4.800M
YoY Change	-7.69%	-25.66%	-12.73%
Cash From Operating Activities	$16.01M	$30.68M	$236.8M
YoY Change	-59.03%	-7.86%	-29.21%
INVESTING ACTIVITIES
Capital Expenditures	$2.788M	$1.382M	$3.470M
YoY Change	573.43%	-272.75%	27.67%
Acquisitions			-$60.28M
YoY Change			-2320.07%
Other Investing Activities	-$95.62M	-$196.5M	-$1.095B
YoY Change	-69.19%	-49.93%	130.23%
Cash From Investing Activities	-$98.41M	-$197.9M	-$1.099B
YoY Change	-68.33%	-49.68%	129.65%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$1.109M
YoY Change			-90.51%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$60.08M	4.366M	$332.1M
YoY Change	-178.63%	-98.84%	-31.22%
NET CHANGE
Cash From Operating Activities	$16.01M	30.68M	$236.8M
Cash From Investing Activities	-$98.41M	-197.9M	-$1.099B
Cash From Financing Activities	$60.08M	4.366M	$332.1M
Net Change In Cash	-$22.32M	-162.9M	-$530.1M
YoY Change	-93.59%	-1020.15%	-256.48%
FREE CASH FLOW
Cash From Operating Activities	$16.01M	$30.68M	$236.8M
Capital Expenditures	$2.788M	$1.382M	$3.470M
Free Cash Flow	$13.22M	$29.30M	$233.3M
YoY Change	-65.81%	-14.07%	-29.67%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0001466026
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherAssets
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherAssets
CY2022Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#AccruedLiabilitiesAndOtherLiabilities
CY2021Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#AccruedLiabilitiesAndOtherLiabilities
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CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	001-35272
CY2022	dei	Entity Registrant Name EntityRegistrantName	MIDLAND STATES BANCORP, INC.
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	IL
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	37-1233196
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	1201 Network Centre Drive
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	62401
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Effingham
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	IL
CY2022	dei	City Area Code CityAreaCode	217
CY2022	dei	Local Phone Number LocalPhoneNumber	342-7321
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
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CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
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CY2022	dei	Auditor Firm AuditorFirmId	173
CY2022	dei	Auditor Name AuditorName	Crowe LLP
CY2022	dei	Auditor Location AuditorLocation	Oak Brook, Illinois
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CY2022	us-gaap	Interest Expense InterestExpense	56020000	usd
CY2021	us-gaap	Interest Expense InterestExpense	30142000	usd
CY2020	us-gaap	Interest Expense InterestExpense	45752000	usd
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	245735000	usd
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	207675000	usd
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	199136000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	18797000	usd
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	3950000	usd
CY2020	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	43149000	usd
CY2022	msbi	Provision For Credit Losses On Unfunded Commitments ProvisionForCreditLossesOnUnfundedCommitments	1550000	usd
CY2021	msbi	Provision For Credit Losses On Unfunded Commitments ProvisionForCreditLossesOnUnfundedCommitments	-412000	usd
CY2020	msbi	Provision For Credit Losses On Unfunded Commitments ProvisionForCreditLossesOnUnfundedCommitments	846000	usd
CY2022	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	-221000	usd
CY2021	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	-145000	usd
CY2020	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	366000	usd
CY2022	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	20126000	usd
CY2022	us-gaap	Noninterest Income Other NoninterestIncomeOther	8030000	usd
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3393000	usd
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	44361000	usd
CY2022	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	225609000	usd
CY2021	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	204282000	usd
CY2020	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	154775000	usd
CY2022	msbi	Wealth Management Revenue WealthManagementRevenue	25708000	usd
CY2021	msbi	Wealth Management Revenue WealthManagementRevenue	26811000	usd
CY2020	msbi	Wealth Management Revenue WealthManagementRevenue	22802000	usd
CY2022	msbi	Fees And Commissions Mortgage Banking And Servicing And Other Commercial FeesAndCommissionsMortgageBankingAndServicingAndOtherCommercial	1663000	usd
CY2021	msbi	Fees And Commissions Mortgage Banking And Servicing And Other Commercial FeesAndCommissionsMortgageBankingAndServicingAndOtherCommercial	1414000	usd
CY2020	msbi	Fees And Commissions Mortgage Banking And Servicing And Other Commercial FeesAndCommissionsMortgageBankingAndServicingAndOtherCommercial	6007000	usd
CY2022	msbi	Fees And Commissions Mortgage Banking And Servicing And Other Residential FeesAndCommissionsMortgageBankingAndServicingAndOtherResidential	1509000	usd
CY2021	msbi	Fees And Commissions Mortgage Banking And Servicing And Other Residential FeesAndCommissionsMortgageBankingAndServicingAndOtherResidential	5526000	usd
CY2020	msbi	Fees And Commissions Mortgage Banking And Servicing And Other Residential FeesAndCommissionsMortgageBankingAndServicingAndOtherResidential	9812000	usd
CY2022	msbi	Commissions And Fees Income From Depositor Accounts CommissionsAndFeesIncomeFromDepositorAccounts	9480000	usd
CY2021	msbi	Commissions And Fees Income From Depositor Accounts CommissionsAndFeesIncomeFromDepositorAccounts	8348000	usd
CY2020	msbi	Commissions And Fees Income From Depositor Accounts CommissionsAndFeesIncomeFromDepositorAccounts	8603000	usd
CY2022	msbi	Fees And Commissions From Debit Cards FeesAndCommissionsFromDebitCards	13879000	usd
CY2021	msbi	Fees And Commissions From Debit Cards FeesAndCommissionsFromDebitCards	14500000	usd
CY2020	msbi	Fees And Commissions From Debit Cards FeesAndCommissionsFromDebitCards	12266000	usd
CY2022	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-230000	usd
CY2021	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	537000	usd
CY2020	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	1721000	usd
CY2022	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	17531000	usd
CY2021	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	2159000	usd
CY2020	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	0	usd
CY2022	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	1263000	usd
CY2021	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	7532000	usd
CY2020	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	12337000	usd
CY2022	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	3584000	usd
CY2021	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	4496000	usd
CY2020	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	3581000	usd
CY2021	us-gaap	Noninterest Income Other NoninterestIncomeOther	13640000	usd
CY2020	us-gaap	Noninterest Income Other NoninterestIncomeOther	8794000	usd
CY2022	us-gaap	Noninterest Income NoninterestIncome	79891000	usd
CY2021	us-gaap	Noninterest Income NoninterestIncome	69899000	usd
CY2020	us-gaap	Noninterest Income NoninterestIncome	61249000	usd
CY2022	us-gaap	Labor And Related Expense LaborAndRelatedExpense	90305000	usd
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	86883000	usd
CY2020	us-gaap	Labor And Related Expense LaborAndRelatedExpense	85557000	usd
CY2022	us-gaap	Occupancy Net OccupancyNet	14842000	usd
CY2021	us-gaap	Occupancy Net OccupancyNet	14866000	usd
CY2020	us-gaap	Occupancy Net OccupancyNet	17552000	usd
CY2022	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	24350000	usd
CY2021	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	24595000	usd
CY2020	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	22643000	usd
CY2022	us-gaap	Professional Fees ProfessionalFees	6907000	usd
CY2021	us-gaap	Professional Fees ProfessionalFees	10971000	usd
CY2020	us-gaap	Professional Fees ProfessionalFees	7234000	usd
CY2022	us-gaap	Marketing Expense MarketingExpense	3318000	usd
CY2021	us-gaap	Marketing Expense MarketingExpense	3239000	usd
CY2020	us-gaap	Marketing Expense MarketingExpense	3498000	usd
CY2022	us-gaap	Communication Communication	2382000	usd
CY2021	us-gaap	Communication Communication	3002000	usd
CY2020	us-gaap	Communication Communication	4052000	usd
CY2022	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	4586000	usd
CY2021	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	2014000	usd
CY2020	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	2504000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5410000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5855000	usd
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6504000	usd
CY2022	msbi	Gain Loss On Sales Of Other Real Estate Total GainLossOnSalesOfOtherRealEstateTotal	-5188000	usd
CY2021	msbi	Gain Loss On Sales Of Other Real Estate Total GainLossOnSalesOfOtherRealEstateTotal	-1277000	usd
CY2020	msbi	Gain Loss On Sales Of Other Real Estate Total GainLossOnSalesOfOtherRealEstateTotal	-2155000	usd
CY2022	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	-3250000	usd
CY2021	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	-222000	usd
CY2020	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	-1692000	usd
CY2022	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	usd
CY2021	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	usd
CY2020	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	12847000	usd
CY2022	msbi	Federal Home Loan Bank Advances Prepayment Fees FederalHomeLoanBankAdvancesPrepaymentFees	0	usd
CY2021	msbi	Federal Home Loan Bank Advances Prepayment Fees FederalHomeLoanBankAdvancesPrepaymentFees	8536000	usd
CY2020	msbi	Federal Home Loan Bank Advances Prepayment Fees FederalHomeLoanBankAdvancesPrepaymentFees	4872000	usd
CY2022	us-gaap	Other Noninterest Expense OtherNoninterestExpense	15124000	usd
CY2021	us-gaap	Other Noninterest Expense OtherNoninterestExpense	13609000	usd
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	12900000	usd
CY2022	us-gaap	Noninterest Expense NoninterestExpense	175662000	usd
CY2021	us-gaap	Noninterest Expense NoninterestExpense	175069000	usd
CY2020	us-gaap	Noninterest Expense NoninterestExpense	184010000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	129838000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	99112000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	32014000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	30813000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17795000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9477000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	99025000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	81317000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	22537000	usd
CY2022	msbi	Preferred Stock Dividend And Amortization Of Premium PreferredStockDividendAndAmortizationOfPremium	3169000	usd
CY2021	msbi	Preferred Stock Dividend And Amortization Of Premium PreferredStockDividendAndAmortizationOfPremium	0	usd
CY2020	msbi	Preferred Stock Dividend And Amortization Of Premium PreferredStockDividendAndAmortizationOfPremium	0	usd
CY2022	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	95856000	usd
CY2021	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	81317000	usd
CY2020	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	22537000	usd
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.24
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.58
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.95
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.23
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.57
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.95
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	22341498	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	22481389	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	23336881	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	22395698	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	22547353	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	23346126	shares
CY2022	us-gaap	Net Income Loss NetIncomeLoss	99025000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	81317000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	22537000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-106927000	usd
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-12553000	usd
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	6454000	usd
CY2022	msbi	Other Comprehensive Income Loss Provision For Credit Loss OtherComprehensiveIncomeLossProvisionForCreditLoss	-221000	usd
CY2021	msbi	Other Comprehensive Income Loss Provision For Credit Loss OtherComprehensiveIncomeLossProvisionForCreditLoss	-145000	usd
CY2020	msbi	Other Comprehensive Income Loss Provision For Credit Loss OtherComprehensiveIncomeLossProvisionForCreditLoss	366000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-230000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	537000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	1721000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-28876000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-3640000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	1402000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-78042000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-9595000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	3697000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	2438000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	6851000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	403000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	17531000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	2159000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-4101000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	1291000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	111000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-10992000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	3401000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	292000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-89034000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-6194000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3989000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	9991000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	75123000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	26526000	usd
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	661911000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	22537000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3989000	usd
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.07
CY2020	msbi	Dividends Common Stock And Share Based Compensation DividendsCommonStockAndShareBasedCompensation	24958000	usd
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	39615000	usd
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2175000	usd
CY2020	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	2524000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	621391000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	81317000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-6194000	usd
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.12
CY2021	msbi	Dividends Common Stock And Share Based Compensation DividendsCommonStockAndShareBasedCompensation	25172000	usd
CY2021	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	11692000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1938000	usd
CY2021	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	2249000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	663837000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	99025000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-89034000	usd
CY2022	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	110548000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.16
CY2022	msbi	Dividends Common Stock And Share Based Compensation DividendsCommonStockAndShareBasedCompensation	25923000	usd
CY2022	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3169000	usd
CY2022	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	1109000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2211000	usd
CY2022	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	2188000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	758574000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	99025000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	81317000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	22537000	usd
CY2022	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	20126000	usd
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3393000	usd
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	44361000	usd
CY2022	us-gaap	Depreciation Depreciation	4842000	usd
CY2021	us-gaap	Depreciation Depreciation	5506000	usd
CY2020	us-gaap	Depreciation Depreciation	6942000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5410000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5855000	usd
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6504000	usd
CY2022	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	1831000	usd
CY2021	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	1742000	usd
CY2020	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	2547000	usd
CY2022	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	2294000	usd
CY2021	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	3242000	usd
CY2020	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	3518000	usd
CY2022	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	2211000	usd
CY2021	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	1938000	usd
CY2020	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	2175000	usd
CY2022	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	3320000	usd
CY2021	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	3451000	usd
CY2020	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	3581000	usd
CY2022	msbi	Gain On Proceeds From Life Insurance Corporate Or Bank Owned GainOnProceedsFromLifeInsuranceCorporateOrBankOwned	264000	usd
CY2021	msbi	Gain On Proceeds From Life Insurance Corporate Or Bank Owned GainOnProceedsFromLifeInsuranceCorporateOrBankOwned	1045000	usd
CY2020	msbi	Gain On Proceeds From Life Insurance Corporate Or Bank Owned GainOnProceedsFromLifeInsuranceCorporateOrBankOwned	0	usd
CY2022	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-2311000	usd
CY2021	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-4196000	usd
CY2020	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-3411000	usd
CY2022	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	17531000	usd
CY2021	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	2159000	usd
CY2020	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	0	usd
CY2022	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-230000	usd
CY2021	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	537000	usd
CY2020	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	1721000	usd
CY2022	msbi	Gains Losses On Sales Of Other Real Estate Excluding Write Downs GainsLossesOnSalesOfOtherRealEstateExcludingWriteDowns	-118000	usd
CY2021	msbi	Gains Losses On Sales Of Other Real Estate Excluding Write Downs GainsLossesOnSalesOfOtherRealEstateExcludingWriteDowns	473000	usd
CY2020	msbi	Gains Losses On Sales Of Other Real Estate Excluding Write Downs GainsLossesOnSalesOfOtherRealEstateExcludingWriteDowns	78000	usd
CY2022	msbi	Write Down Of Other Real Estate Owned WriteDownOfOtherRealEstateOwned	4277000	usd
CY2021	msbi	Write Down Of Other Real Estate Owned WriteDownOfOtherRealEstateOwned	454000	usd
CY2020	msbi	Write Down Of Other Real Estate Owned WriteDownOfOtherRealEstateOwned	1390000	usd
CY2022	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	134612000	usd
CY2021	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	504801000	usd
CY2020	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	786203000	usd
CY2022	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	269958000	usd
CY2021	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	739954000	usd
CY2020	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	1218950000	usd
CY2022	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	844000	usd
CY2021	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	4952000	usd
CY2020	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	14071000	usd
CY2022	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	1263000	usd
CY2021	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	7532000	usd
CY2020	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	12337000	usd
CY2022	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	-3250000	usd
CY2021	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	-222000	usd
CY2020	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	-1692000	usd
CY2022	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	0	usd
CY2021	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	0	usd
CY2020	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-12847000	usd
CY2022	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	807000	usd
CY2021	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-4075000	usd
CY2020	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	7199000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	9434000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	31974000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	31961000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-13579000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	24404000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	4750000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	236755000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	334438000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	499147000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	192349000	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	469789000	usd
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	266514000	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	136403000	usd
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	14777000	usd
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	28256000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	85077000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	208377000	usd
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	214036000	usd
CY2022	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	511000	usd
CY2021	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	260000	usd
CY2020	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	3345000	usd
CY2022	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1177598000	usd
CY2021	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	258401000	usd
CY2020	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1279913000	usd
CY2022	msbi	Proceeds From Sale Of Commercial Fha Origination Platform ProceedsFromSaleOfCommercialFHAOriginationPlatform	0	usd
CY2021	msbi	Proceeds From Sale Of Commercial Fha Origination Platform ProceedsFromSaleOfCommercialFHAOriginationPlatform	0	usd
CY2020	msbi	Proceeds From Sale Of Commercial Fha Origination Platform ProceedsFromSaleOfCommercialFHAOriginationPlatform	7502000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3470000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2718000	usd
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2589000	usd
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	175000	usd
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	647000	usd
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	usd
CY2022	msbi	Payments To Acquire Nonmarketable Equity Securities PaymentsToAcquireNonmarketableEquitySecurities	24787000	usd
CY2021	msbi	Payments To Acquire Nonmarketable Equity Securities PaymentsToAcquireNonmarketableEquitySecurities	0	usd
CY2020	msbi	Payments To Acquire Nonmarketable Equity Securities PaymentsToAcquireNonmarketableEquitySecurities	12091000	usd
CY2022	msbi	Proceeds From Sale Of Nonmarketable Equity Securities ProceedsFromSaleOfNonmarketableEquitySecurities	14927000	usd
CY2021	msbi	Proceeds From Sale Of Nonmarketable Equity Securities ProceedsFromSaleOfNonmarketableEquitySecurities	20255000	usd
CY2020	msbi	Proceeds From Sale Of Nonmarketable Equity Securities ProceedsFromSaleOfNonmarketableEquitySecurities	0	usd
CY2022	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	1453000	usd
CY2021	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	9210000	usd
CY2020	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	2225000	usd
CY2022	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	usd
CY2021	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	550000	usd
CY2020	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	usd
CY2022	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1518000	usd
CY2021	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	2672000	usd
CY2020	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-60275000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	2715000	usd
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1098887000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-478495000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1312433000	usd
CY2022	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	174210000	usd
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1009632000	usd
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	556762000	usd
CY2022	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-34492000	usd
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	7846000	usd
CY2020	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-13072000	usd
CY2022	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	3540000000	usd
CY2021	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	500000000	usd
CY2020	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	729000000	usd
CY2022	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	3390171000	usd
CY2021	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	977536000	usd
CY2020	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	447842000	usd
CY2022	msbi	Federal Home Loan Bank Advances Prepayment Fees FederalHomeLoanBankAdvancesPrepaymentFees	0	usd
CY2021	msbi	Federal Home Loan Bank Advances Prepayment Fees FederalHomeLoanBankAdvancesPrepaymentFees	8536000	usd
CY2020	msbi	Federal Home Loan Bank Advances Prepayment Fees FederalHomeLoanBankAdvancesPrepaymentFees	4872000	usd
CY2022	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	40000000	usd
CY2021	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	31075000	usd
CY2020	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	7443000	usd
CY2022	msbi	Subordinated Debt Prepayment Fees SubordinatedDebtPrepaymentFees	0	usd
CY2021	msbi	Subordinated Debt Prepayment Fees SubordinatedDebtPrepaymentFees	0	usd
CY2020	msbi	Subordinated Debt Prepayment Fees SubordinatedDebtPrepaymentFees	193000	usd
CY2022	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	110548000	usd
CY2021	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	usd
CY2020	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	usd
CY2022	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	3169000	usd
CY2021	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	0	usd
CY2020	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	0	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	25923000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	25172000	usd
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	24958000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	680371000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1109000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	11692000	usd
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	39615000	usd
CY2022	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	2188000	usd
CY2021	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	2249000	usd
CY2020	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	2524000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	332082000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	482788000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	760421000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-530050000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	338731000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-52865000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	680371000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	341640000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	394505000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	150321000	usd
CY2022	msbi	Transfer Of Premises And Equipment To Assets Held For Sale TransferOfPremisesAndEquipmentToAssetsHeldForSale	0	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	341640000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	55069000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	31735000	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	47712000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	36514000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	7759000	usd
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2977000	usd
CY2022	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	103357000	usd
CY2021	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	123117000	usd
CY2020	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	542060000	usd
CY2022	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	517000	usd
CY2021	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	805000	usd
CY2020	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	16736000	usd
CY2021	msbi	Transfer Of Premises And Equipment To Assets Held For Sale TransferOfPremisesAndEquipmentToAssetsHeldForSale	23000	usd
CY2020	msbi	Transfer Of Premises And Equipment To Assets Held For Sale TransferOfPremisesAndEquipmentToAssetsHeldForSale	11344000	usd
CY2022	msbi	Transfer Of Loans Servicing Rights At Lower Of Cost Or Market To Loan Servicing Rights Held For Sale TransferOfLoansServicingRightsAtLowerOfCostOrMarketToLoanServicingRightsHeldForSale	23995000	usd
CY2021	msbi	Transfer Of Loans Servicing Rights At Lower Of Cost Or Market To Loan Servicing Rights Held For Sale TransferOfLoansServicingRightsAtLowerOfCostOrMarketToLoanServicingRightsHeldForSale	705000	usd
CY2020	msbi	Transfer Of Loans Servicing Rights At Lower Of Cost Or Market To Loan Servicing Rights Held For Sale TransferOfLoansServicingRightsAtLowerOfCostOrMarketToLoanServicingRightsHeldForSale	0	usd
CY2022Q4	msbi	Interest Receivable From Loans InterestReceivableFromLoans	17000000	usd
CY2021Q4	msbi	Interest Receivable From Loans InterestReceivableFromLoans	15900000	usd
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	12800000	usd
CY2020Q1	msbi	Unused Commitments To Extend Credit Period Increase Decrease UnusedCommitmentsToExtendCreditPeriodIncreaseDecrease	300000	usd
CY2022Q4	msbi	Loans And Lease Receivables Probability Of Default Non Accrual Loans Threshold Balance Minimum LoansAndLeaseReceivablesProbabilityOfDefaultNonAccrualLoansThresholdBalanceMinimum	500000	usd
CY2022Q4	msbi	Loans And Lease Receivables Probability Of Default Accrual Loans90 Days Due Threshold Balance Minimum LoansAndLeaseReceivablesProbabilityOfDefaultAccrualLoans90DaysDueThresholdBalanceMinimum	100000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	768234000	usd
CY2022	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-bottom:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Allowance for Credit Losses on Unfunded Commitments</span></div><div style="margin-bottom:12pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In the ordinary course of business, the Company has entered into credit-related financial instruments consisting of commitments to extend credit, commercial letters of credit and standby letters of credit. The notional amount of these commitments is not reflected in the consolidated financial statements until they are funded.</span></div><div style="margin-bottom:12pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company estimates expected credit losses over the contractual period in which the Company is exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Company. The allowance for credit losses on unfunded commitments is adjusted as a provision for credit loss expense on the consolidated income statement. The estimate includes consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded over its estimated life. Expected utilization rates are compared to the current funded portion of the total commitment amount as a practical expedient for funded exposure at default. The allowance for credit losses on unfunded commitments totaled $1.9 million and $2.4 million at December 31, 2022 and 2021, respectively.</span></div>
CY2022Q4	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	1900000	usd
CY2021Q4	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	2400000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	873023000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	601000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	105390000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	904695000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	11505000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	9376000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	221000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	906603000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis	32553000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	32151000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis	130347000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	122407000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis	135682000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	120722000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis	27491000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	24050000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	546950000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	468904000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	873023000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	768234000	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	136403000	usd
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	14777000	usd
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	28256000	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	829000	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	537000	usd
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	1721000	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	-1059000	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	usd
CY2020	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	221000	usd
CY2022	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossNotPreviouslyRecorded	-221000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2020Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	366000	usd
CY2021	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossNotPreviouslyRecorded	-145000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	221000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	241906000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	15132000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	463399000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	90258000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	705305000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	105390000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	451195000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	7977000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	21021000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	932000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	472216000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	8909000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	391	security
CY2022Q4	msbi	Available For Sale Securities In Unrealized Loss Positions Aggregate Depreciation Percentage AvailableForSaleSecuritiesInUnrealizedLossPositionsAggregateDepreciationPercentage	0.1300
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	6306467000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5224801000	usd
CY2022Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	4400000	usd
CY2021Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	4600000	usd
CY2022Q4	us-gaap	Deferred Discounts Finance Charges And Interest Included In Receivables DeferredDiscountsFinanceChargesAndInterestIncludedInReceivables	62600000	usd
CY2021Q4	us-gaap	Deferred Discounts Finance Charges And Interest Included In Receivables DeferredDiscountsFinanceChargesAndInterestIncludedInReceivables	46100000	usd
CY2022Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	1300000	usd
CY2021Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	32000000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	51062000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	18797000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	11103000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	2295000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	61051000	usd
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	60443000	usd
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	3950000	usd
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	15420000	usd
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	2089000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	51062000	usd
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	28028000	usd
CY2020	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	43149000	usd
CY2020	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	25454000	usd
CY2020	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	1937000	usd
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	60443000	usd
CY2022Q4	msbi	Loans And Lease Receivables Probability Of Default Non Accrual Loans Threshold Balance Minimum LoansAndLeaseReceivablesProbabilityOfDefaultNonAccrualLoansThresholdBalanceMinimum	500000	usd
CY2022Q4	msbi	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	19445000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual No Allowance FinancingReceivableExcludingAccruedInterestNonaccrualNoAllowance	22531000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual FinancingReceivableExcludingAccruedInterestNonaccrual	41976000	usd
CY2021Q4	msbi	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	19237000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual No Allowance FinancingReceivableExcludingAccruedInterestNonaccrualNoAllowance	16326000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual FinancingReceivableExcludingAccruedInterestNonaccrual	35563000	usd
CY2022	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	0	usd
CY2021Q4	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	0	usd
CY2022Q4	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	0	usd
CY2021	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	0	usd
CY2022	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	2800000	usd
CY2021	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	2700000	usd
CY2020	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	3300000	usd
CY2022Q4	msbi	Collateral Dependent Loans CollateralDependentLoans	27681000	usd
CY2021Q4	msbi	Collateral Dependent Loans CollateralDependentLoans	20813000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	6306467000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5224801000	usd
CY2022Q4	msbi	Financing Receivable Modifications Recorded Investment Accruing FinancingReceivableModificationsRecordedInvestmentAccruing	6274000	usd
CY2022Q4	msbi	Financing Receivable Modifications Recorded Investment Nonaccrual FinancingReceivableModificationsRecordedInvestmentNonaccrual	3604000	usd
CY2022Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	9878000	usd
CY2021Q4	msbi	Financing Receivable Modifications Recorded Investment Accruing FinancingReceivableModificationsRecordedInvestmentAccruing	7012000	usd
CY2021Q4	msbi	Financing Receivable Modifications Recorded Investment Nonaccrual FinancingReceivableModificationsRecordedInvestmentNonaccrual	5749000	usd
CY2021Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	12761000	usd
CY2022	us-gaap	Financing Receivable Change In Method Credit Loss Expense Reversal FinancingReceivableChangeInMethodCreditLossExpenseReversal	300000	usd
CY2021	us-gaap	Financing Receivable Change In Method Credit Loss Expense Reversal FinancingReceivableChangeInMethodCreditLossExpenseReversal	700000	usd
CY2021Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	9	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	9	usd
CY2022	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	24	loan
CY2022	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	2162000	usd
CY2022	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	2145000	usd
CY2021	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	45	loan
CY2021	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	6302000	usd
CY2021	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	5954000	usd
CY2020	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	37	loan
CY2020	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	5164000	usd
CY2020	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	4455000	usd
CY2022	msbi	Number Of Main Regions NumberOfMainRegions	4	region
CY2022Q4	us-gaap	Property Subject To Or Available For Operating Lease Gross PropertySubjectToOrAvailableForOperatingLeaseGross	7001000	usd
CY2021Q4	us-gaap	Property Subject To Or Available For Operating Lease Gross PropertySubjectToOrAvailableForOperatingLeaseGross	8428000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	128923000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	124812000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	50630000	usd
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	45592000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	78293000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	79220000	usd
CY2022	us-gaap	Depreciation Depreciation	4800000	usd
CY2021	us-gaap	Depreciation Depreciation	5500000	usd
CY2020	us-gaap	Depreciation Depreciation	6900000	usd
CY2020Q4	msbi	Restructuring And Related Cost Number Of Stores Eliminated RestructuringAndRelatedCostNumberOfStoresEliminated	13	branch
CY2020Q4	msbi	Percentage Of Branch Network Closed PercentageOfBranchNetworkClosed	0.20
CY2020Q4	msbi	Restructuring And Related Cost Area Of Office Space To Be Vacated RestructuringAndRelatedCostAreaOfOfficeSpaceToBeVacated	23000	sqft
	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	12700000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P10Y
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	7000000	usd
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	8400000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	8900000	usd
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	10700000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	2096000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	2080000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	2507000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	2566000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	502000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1118000	usd
CY2022	msbi	Operating Leases Right Of Use Assets Derecognized Due To Terminations Or Impairment OperatingLeasesRightOfUseAssetsDerecognizedDueToTerminationsOrImpairment	123000	usd
CY2021	msbi	Operating Leases Right Of Use Assets Derecognized Due To Terminations Or Impairment OperatingLeasesRightOfUseAssetsDerecognizedDueToTerminationsOrImpairment	210000	usd
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y2M12D
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y7M6D
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0289
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0285
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	1500000	usd
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	1400000	usd
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	2300000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	1975000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1879000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	975000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	843000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	740000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	3556000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	9968000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1023000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	8945000	usd
CY2022Q4	msbi	Mortgage Loans Serviced For Others MortgageLoansServicedForOthers	2556996000	usd
CY2022Q4	msbi	Mortgage Loans Serviced For Others Carrying Value MortgageLoansServicedForOthersCarryingValue	21950000	usd
CY2021Q4	msbi	Mortgage Loans Serviced For Others MortgageLoansServicedForOthers	3003192000	usd
CY2021Q4	msbi	Mortgage Loans Serviced For Others Carrying Value MortgageLoansServicedForOthersCarryingValue	28865000	usd
CY2021	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Prepayment Speed ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed	0.0824
CY2021	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Discount Rate ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate	0.1187
CY2022Q4	us-gaap	Goodwill Goodwill	161904000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	161904000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	74832000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	53966000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	20866000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	72930000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	48556000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	24374000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5400000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5900000	usd
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6500000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	4758000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	4008000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	3223000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	2672000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	2101000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	4104000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	20866000	usd
CY2022Q4	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	11088000	usd
CY2021Q4	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	18362000	usd
CY2022Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-15000	usd
CY2021Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-19000	usd
CY2022Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1935773000	usd
CY2021Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	2245701000	usd
CY2022Q4	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1920458000	usd
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1663021000	usd
CY2022Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	1184101000	usd
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	869067000	usd
CY2022Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	661932000	usd
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	679115000	usd
CY2022Q4	us-gaap	Interest Bearing Domestic Deposit Time Deposits InterestBearingDomesticDepositTimeDeposits	662388000	usd
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Time Deposits InterestBearingDomesticDepositTimeDeposits	653744000	usd
CY2022Q4	us-gaap	Deposits Deposits	6364652000	usd
CY2021Q4	us-gaap	Deposits Deposits	6110648000	usd
CY2022Q4	msbi	Time Deposits250000 Or More TimeDeposits250000OrMore	118600000	usd
CY2021Q4	msbi	Time Deposits250000 Or More TimeDeposits250000OrMore	143500000	usd
CY2022Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	323967000	usd
CY2022Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	247320000	usd
CY2022Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	66861000	usd
CY2022Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	17373000	usd
CY2022Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	6807000	usd
CY2022Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	60000	usd
CY2022Q4	us-gaap	Time Deposits TimeDeposits	662388000	usd
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	42311000	usd
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	76803000	usd
CY2022	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	58688000	usd
CY2021	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	68986000	usd
CY2022	us-gaap	Shortterm Debt Maximum Monthend Outstanding Amount ShorttermDebtMaximumMonthendOutstandingAmount	76807000	usd
CY2021	us-gaap	Shortterm Debt Maximum Monthend Outstanding Amount ShorttermDebtMaximumMonthendOutstandingAmount	77497000	usd
CY2022	msbi	Short Term Debt Weighted Average Interest Rate During Period ShortTermDebtWeightedAverageInterestRateDuringPeriod	0.0018
CY2021	msbi	Short Term Debt Weighted Average Interest Rate During Period ShortTermDebtWeightedAverageInterestRateDuringPeriod	0.0012
CY2022Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0026
CY2021Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0013
CY2022Q4	us-gaap	Collateralized Agreements CollateralizedAgreements	46100000	usd
CY2021Q4	us-gaap	Collateralized Agreements CollateralizedAgreements	78300000	usd
CY2022Q4	us-gaap	Line Of Credit LineOfCredit	0	usd
CY2021Q4	us-gaap	Line Of Credit LineOfCredit	0	usd
CY2022Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	394000000	usd
CY2022Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	460000000	usd
CY2021Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	310171000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	2900000000	usd
CY2021Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	2100000000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	390000000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From One To Two Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate	70000000	usd
CY2022Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	460000000	usd
CY2022Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	100550000	usd
CY2022Q4	us-gaap	Subordinated Debt SubordinatedDebt	99772000	usd
CY2021Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	140550000	usd
CY2021Q4	us-gaap	Subordinated Debt SubordinatedDebt	139091000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	22792000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	10044000	usd
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	10924000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	64000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	7926000	usd
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3852000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	11101000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	144000	usd
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1271000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-3144000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-319000	usd
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1134000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	30813000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17795000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9477000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	27266000	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	20814000	usd
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	6723000	usd
CY2022	msbi	Income Tax Reconciliation Tax Exempt Interest IncomeTaxReconciliationTaxExemptInterest	-2014000	usd
CY2021	msbi	Income Tax Reconciliation Tax Exempt Interest IncomeTaxReconciliationTaxExemptInterest	-2499000	usd
CY2020	msbi	Income Tax Reconciliation Tax Exempt Interest IncomeTaxReconciliationTaxExemptInterest	-2398000	usd
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	6274000	usd
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5465000	usd
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1900000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	0	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	-5614000	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	0	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-186000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-93000	usd
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	239000	usd
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CY2021	msbi	Effective Income Tax Rate Reconciliation Disposition Of Nondeductible Goodwill EffectiveIncomeTaxRateReconciliationDispositionOfNondeductibleGoodwill	0	usd
CY2020	msbi	Effective Income Tax Rate Reconciliation Disposition Of Nondeductible Goodwill EffectiveIncomeTaxRateReconciliationDispositionOfNondeductibleGoodwill	2287000	usd
CY2022	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	58000	usd
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	47000	usd
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	10000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-585000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-325000	usd
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	716000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	30813000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17795000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9477000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Settlements IncomeTaxReconciliationTaxSettlements	-6800000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	16484000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	14042000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	2238000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	2177000	usd
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CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	861000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1067000	usd
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CY2022Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	287000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	879000	usd
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CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	4550000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3519000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	68240000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	36578000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	176000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	118000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	68064000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	36460000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	573000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	472000	usd
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CY2021Q4	msbi	Deferred Tax Liabilities Unrealized Gains On Investment Securities DeferredTaxLiabilitiesUnrealizedGainsOnInvestmentSecurities	569000	usd
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CY2022Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	4217000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	5958000	usd
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CY2022Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	3006000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	3444000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	4458000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	5651000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Software DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware	842000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Software DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware	1446000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	24346000	usd
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CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	2222000	usd
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CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	45579000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	50038000	usd
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CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	100000	usd
CY2022	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	100000	usd
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CY2022	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	0	usd
CY2021	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	0	usd
CY2022	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.50
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CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1600000	usd
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1200000	usd
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1700000	usd
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CY2021	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	0	usd
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CY2022	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-369000	usd
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	0	usd
CY2022	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0270
CY2022	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0550
CY2022	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0
CY2022Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	13016000	usd
CY2021Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	16904000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	13016000	usd
CY2021Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	16904000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	12765000	usd
CY2021Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	16890000	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P4Y
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CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	18.24
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CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	32.53
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	415572	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	25.81
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y6M
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	194842	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	22.84
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P6Y6M
CY2022Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	800000	usd
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	800000	usd
CY2022Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	1000000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P3Y9M18D
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	4.92
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2061000	usd
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2225000	usd
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	707000	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	943000	usd
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	814000	usd
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	159000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	198000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	171000	usd
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	32000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	99025000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	81317000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	22537000	usd
CY2022	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	3169000	usd
CY2021	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	0	usd
CY2020	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	0	usd
CY2022	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	95856000	usd
CY2021	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	81317000	usd
CY2020	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	22537000	usd
CY2022	us-gaap	Dividends Common Stock DividendsCommonStock	25628000	usd
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	24912000	usd
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	24699000	usd
CY2022	us-gaap	Dividends Share Based Compensation DividendsShareBasedCompensation	295000	usd
CY2021	us-gaap	Dividends Share Based Compensation DividendsShareBasedCompensation	260000	usd
CY2020	us-gaap	Dividends Share Based Compensation DividendsShareBasedCompensation	259000	usd
CY2022	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	809000	usd
CY2021	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	564000	usd
CY2020	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	usd
CY2022	msbi	Undistributed Earnings To Common Shareholders UndistributedEarningsToCommonShareholders	69124000	usd
CY2021	msbi	Undistributed Earnings To Common Shareholders UndistributedEarningsToCommonShareholders	55581000	usd
CY2020	msbi	Undistributed Earnings To Common Shareholders UndistributedEarningsToCommonShareholders	-2421000	usd
CY2022	us-gaap	Dividends Common Stock DividendsCommonStock	25628000	usd
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	24912000	usd
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	24699000	usd
CY2022	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Basic UndistributedEarningsLossAvailableToCommonShareholdersBasic	69124000	usd
CY2021	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Basic UndistributedEarningsLossAvailableToCommonShareholdersBasic	55581000	usd
CY2020	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Basic UndistributedEarningsLossAvailableToCommonShareholdersBasic	-2421000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	94752000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	80493000	usd
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	22278000	usd
CY2022	us-gaap	Dividends Common Stock DividendsCommonStock	25628000	usd
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	24912000	usd
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	24699000	usd
CY2022	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Diluted UndistributedEarningsLossAvailableToCommonShareholdersDiluted	69124000	usd
CY2021	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Diluted UndistributedEarningsLossAvailableToCommonShareholdersDiluted	55581000	usd
CY2020	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Diluted UndistributedEarningsLossAvailableToCommonShareholdersDiluted	-2421000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	94752000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	80493000	usd
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	22278000	usd
CY2022	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	2000	usd
CY2021	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	2000	usd
CY2020	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	0	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	94754000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	80495000	usd
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	22278000	usd
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	22341498	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	22481389	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	23336881	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	54200	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	65964	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	9245	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	22395698	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	22547353	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	23346126	shares
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.24
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.58
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.95
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.23
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.57
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.95
CY2022Q4	us-gaap	Capital Capital	891320000	usd
CY2022Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1238
CY2022Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	755859000	usd
CY2022Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.1050
CY2022Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	734754000	usd
CY2022Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1021
CY2022Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	611886000	usd
CY2022Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0850
CY2022Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets CommonEquityTier1CapitalToRiskWeightedAssets	559255000	usd
CY2022Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets Ratio CommonEquityTier1CapitalToRiskWeightedAssetsRatio	0.0777
CY2022Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets Required For Adequate Capital Amount CommonEquityTier1CapitalToRiskWeightedAssetsRequiredForAdequateCapitalAmount	503906000	usd
CY2022Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets Required For Adequate Capital Ratio CommonEquityTier1CapitalToRiskWeightedAssetsRequiredForAdequateCapitalRatio	0.0700
CY2022Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	734754000	usd
CY2022Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0943
CY2022Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	311715000	usd
CY2022Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2021Q4	us-gaap	Capital Capital	732177000	usd
CY2021Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1219
CY2021Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	630482000	usd
CY2021Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.1050
CY2021Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	550195000	usd
CY2021Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.0916
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	510390000	usd
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0850
CY2021Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets CommonEquityTier1CapitalToRiskWeightedAssets	485244000	usd
CY2021Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets Ratio CommonEquityTier1CapitalToRiskWeightedAssetsRatio	0.0808
CY2021Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets Required For Adequate Capital Amount CommonEquityTier1CapitalToRiskWeightedAssetsRequiredForAdequateCapitalAmount	420321000	usd
CY2021Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets Required For Adequate Capital Ratio CommonEquityTier1CapitalToRiskWeightedAssetsRequiredForAdequateCapitalRatio	0.0700
CY2021Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	550195000	usd
CY2021Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0775
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	283941000	usd
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2020	us-gaap	Loss Contingency Loss In Period LossContingencyLossInPeriod	0	usd
CY2022Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	1286000	usd
CY2022Q4	us-gaap	Fair Value Option Loans Held As Assets Aggregate Difference FairValueOptionLoansHeldAsAssetsAggregateDifference	42000	usd
CY2022Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	1244000	usd
CY2021Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	32045000	usd
CY2021Q4	us-gaap	Fair Value Option Loans Held As Assets Aggregate Difference FairValueOptionLoansHeldAsAssetsAggregateDifference	584000	usd
CY2021Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	31461000	usd
CY2022	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-425000	usd
CY2021	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-215000	usd
CY2020	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	179000	usd
CY2022Q4	us-gaap	Loss Contingency Estimate Of Possible Loss LossContingencyEstimateOfPossibleLoss	0	usd
CY2022	us-gaap	Loss Contingency Loss In Period LossContingencyLossInPeriod	0	usd
CY2021	us-gaap	Loss Contingency Loss In Period LossContingencyLossInPeriod	0	usd
CY2021Q4	msbi	Liability For Unresolved Repurchase Demands LiabilityForUnresolvedRepurchaseDemands	200000	usd
CY2022Q4	msbi	Liability For Unresolved Repurchase Demands LiabilityForUnresolvedRepurchaseDemands	200000	usd
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	245735000	usd
CY2022	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	20126000	usd
CY2022	us-gaap	Noninterest Income NoninterestIncome	79891000	usd
CY2022	us-gaap	Noninterest Expense NoninterestExpense	175662000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	129838000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	30813000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	99025000	usd
CY2022Q4	us-gaap	Assets Assets	7855501000	usd
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	207675000	usd
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3393000	usd
CY2021	us-gaap	Noninterest Income NoninterestIncome	69899000	usd
CY2021	us-gaap	Noninterest Expense NoninterestExpense	175069000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	99112000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17795000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	81317000	usd
CY2021Q4	us-gaap	Assets Assets	7443805000	usd
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	199136000	usd
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	44361000	usd
CY2020	us-gaap	Noninterest Income NoninterestIncome	61249000	usd
CY2020	us-gaap	Noninterest Expense NoninterestExpense	184010000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	32014000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9477000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	22537000	usd
CY2020Q4	us-gaap	Assets Assets	6868540000	usd
CY2022	msbi	Noninterest Income Out Of Scope Of Topic606 NoninterestIncomeOutOfScopeOfTopic606	26195000	usd
CY2021	msbi	Noninterest Income Out Of Scope Of Topic606 NoninterestIncomeOutOfScopeOfTopic606	14879000	usd
CY2020	msbi	Noninterest Income Out Of Scope Of Topic606 NoninterestIncomeOutOfScopeOfTopic606	13036000	usd
CY2022	us-gaap	Noninterest Income NoninterestIncome	79891000	usd
CY2021	us-gaap	Noninterest Income NoninterestIncome	69899000	usd
CY2020	us-gaap	Noninterest Income NoninterestIncome	61249000	usd

Files In Submission

Name	View Source	Status
FilingSummary.xml	Edgar Link	unprocessable
msbi-20221231_pre.xml	Edgar Link	unprocessable
msbi-20221231_cal.xml	Edgar Link	unprocessable
msbi-20221231_def.xml	Edgar Link	unprocessable
0001466026-23-000006-index-headers.html	Edgar Link	pending
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crowesignature.jpg	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
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msbi-20221231_htm.xml	Edgar Link	completed
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$MSBI
Midland States Bancorp Inc Stock $msbi

2023 Q1 Form 10-K Financial Statement

#000146602623000006 Filed on February 24, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MSBI Midland States Bancorp Inc Stock $msbi

2023 Q1 Form 10-K Financial Statement

#000146602623000006 Filed on February 24, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MSBI
Midland States Bancorp Inc Stock $msbi