$MSBI
Midland States Bancorp Inc Stock $msbi

$msbi Overview Financials Valuation SEC Filings Company Website

2019 Form 10-K Financial Statement

#000155837020001800 Filed on February 28, 2020

Income Statement

Concept	2019	2018 Q4	2018 Q3
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	$6.600M	$4.100M	$1.500M
YoY Change	6.45%	28.13%	-62.5%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$59.70M	$13.06M	$11.91M
YoY Change	37.95%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$72.47M	$20.86M	$10.93M
YoY Change	42.65%	168.51%	371.25%
Income Tax	$16.69M	$4.527M	$2.436M
% Of Pretax Income	23.03%	21.7%	22.28%
Net Earnings	$55.78M	$16.34M	$8.497M
YoY Change	41.51%	720.9%	316.52%
Net Earnings / Revenue
Basic Earnings Per Share	$2.28	$0.68	$0.35
Diluted Earnings Per Share	$2.26	$0.67	$0.35
COMMON SHARES
Basic Shares Outstanding	24.29M shares		23.86M
Diluted Shares Outstanding	24.49M shares		24.33M

Balance Sheet

Concept	2019	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments		$871.2M
YoY Change
Cash & Equivalents		$213.7M	$242.4M
Short-Term Investments		$657.5M
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$105.3M	$94.84M	$95.10M
YoY Change	11.08%	24.46%	17.55%
Goodwill		$164.7M
YoY Change
Intangibles		$37.38M
YoY Change
Long-Term Investments	$44.50M	$42.50M	$44.90M
YoY Change	4.71%	22.13%	30.52%
Other Assets	$0.00	$1.300M	$10.20M
YoY Change	-100.0%	-89.17%	-55.26%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$6.087B	$5.638B	$5.725B
YoY Change	7.97%	27.76%	31.67%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$6.400M	$4.900M	$5.600M
YoY Change	30.61%	96.0%	133.33%
Accrued Expenses	$15.40M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$82.00M	$124.2M	$145.5M
YoY Change	-33.98%	-20.41%	-5.15%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$21.80M	$4.900M	$5.600M
YoY Change	344.9%	96.0%	133.33%
LONG-TERM LIABILITIES
Long-Term Debt	$224.9M	$141.9M	$141.8M
YoY Change	58.49%	1.79%	42.08%
Other Long-Term Liabilities	$47.50M	$43.30M	$42.20M
YoY Change	9.7%	15.16%	10.76%
Total Long-Term Liabilities	$272.4M	$185.2M	$184.0M
YoY Change	47.08%	4.63%	33.43%
TOTAL LIABILITIES
Total Short-Term Liabilities	$21.80M	$4.900M	$5.600M
Total Long-Term Liabilities	$272.4M	$185.2M	$184.0M
Total Liabilities	$5.425B	$5.029B	$5.131B
YoY Change	7.87%	26.9%	31.65%
SHAREHOLDERS EQUITY
Retained Earnings		$133.8M
YoY Change
Common Stock		$238.0K
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$661.9M	$608.5M	$594.1M
YoY Change
Total Liabilities & Shareholders Equity	$6.087B	$5.638B	$5.725B
YoY Change	7.97%	27.76%	31.67%

Cashflow Statement

Concept	2019	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$55.78M	$16.34M	$8.497M
YoY Change	41.51%	720.9%	316.52%
Depreciation, Depletion And Amortization	$6.600M	$4.100M	$1.500M
YoY Change	6.45%	28.13%	-62.5%
Cash From Operating Activities	$538.7M	$31.20M	$28.90M
YoY Change	454.78%	305.19%	155.75%
INVESTING ACTIVITIES
Capital Expenditures	$5.538M	-$1.400M	-$1.700M
YoY Change	-23.08%	75.0%	-34.62%
Acquisitions	-$69.88M
YoY Change
Other Investing Activities	-$359.3M	$48.40M	-$44.00M
YoY Change	-71960.0%	-229.41%	315.09%
Cash From Investing Activities	-$364.8M	$47.00M	-$45.70M
YoY Change	5349.48%	-223.04%	243.61%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$4.019M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$6.940M	-106.9M	-17.10M
YoY Change	-107.55%	-272.14%	-88.52%
NET CHANGE
Cash From Operating Activities	$538.7M	31.20M	28.90M
Cash From Investing Activities	-$364.8M	47.00M	-45.70M
Cash From Financing Activities	$6.940M	-106.9M	-17.10M
Net Change In Cash	$180.8M	-28.70M	-33.90M
YoY Change	-12137.62%	-190.82%	-77.53%
FREE CASH FLOW
Cash From Operating Activities	$538.7M	$31.20M	$28.90M
Capital Expenditures	$5.538M	-$1.400M	-$1.700M
Free Cash Flow	$533.1M	$32.60M	$30.60M
YoY Change	493.06%	283.53%	120.14%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	IL
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	24420345
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	23751798
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	2636
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	2636
CY2017	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	0
CY2018	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	0
CY2019	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	0
CY2019Q4	us-gaap	Fair Value Assets Level2 To Level1 Transfers Amount FairValueAssetsLevel2ToLevel1TransfersAmount	0
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0001466026
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	001-35272
CY2019	dei	Entity Registrant Name EntityRegistrantName	MIDLAND STATES BANCORP, INC.
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	37-1233196
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	1201 Network Centre Drive
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Effingham
CY2019	dei	Entity Address Country EntityAddressCountry	IL
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	62401
CY2019	dei	City Area Code CityAreaCode	217
CY2019	dei	Local Phone Number LocalPhoneNumber	342-7321
CY2019	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value
CY2019	dei	Trading Symbol TradingSymbol	MSBI
CY2019	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	600447241
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	24300719
CY2019Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	392694000
CY2018Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	210780000
CY2019Q4	us-gaap	Federal Funds Sold FederalFundsSold	1811000
CY2018Q4	us-gaap	Federal Funds Sold FederalFundsSold	2920000
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	394505000
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	213700000
CY2019Q4	us-gaap	Marketable Securities MarketableSecurities	649433000
CY2018Q4	us-gaap	Marketable Securities MarketableSecurities	657451000
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	5621000
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	3334000
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4401410000
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4137551000
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	28028000
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	20903000
CY2019Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4373382000
CY2018Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4116648000
CY2019Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	16431000
CY2018Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	30401000
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	91055000
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	94840000
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	14224000
CY2019Q4	us-gaap	Other Real Estate OtherRealEstate	6745000
CY2018Q4	us-gaap	Other Real Estate OtherRealEstate	3483000
CY2019Q4	msbi	Non Marketable Equity Securities NonMarketableEquitySecurities	44505000
CY2018Q4	msbi	Non Marketable Equity Securities NonMarketableEquitySecurities	42472000
CY2019Q4	us-gaap	Interest Receivable InterestReceivable	16346000
CY2018Q4	us-gaap	Interest Receivable InterestReceivable	16560000
CY2019Q4	us-gaap	Servicing Asset ServicingAsset	53824000
CY2018Q4	us-gaap	Servicing Asset ServicingAsset	53447000
CY2019Q4	msbi	Servicing Rights Held For Sale ServicingRightsHeldForSale	1972000
CY2018Q4	msbi	Servicing Rights Held For Sale ServicingRightsHeldForSale	3545000
CY2019Q4	us-gaap	Goodwill Goodwill	171758000
CY2018Q4	us-gaap	Goodwill Goodwill	164673000
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	34886000
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	37376000
CY2019Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	142423000
CY2018Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	138783000
CY2019Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	6362000
CY2018Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	8809000
CY2018Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1251000
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CY2019Q4	us-gaap	Assets Assets	6087017000
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CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	82029000
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CY2019Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	493311000
CY2018Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	640631000
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CY2018Q4	us-gaap	Subordinated Debt SubordinatedDebt	94134000
CY2019Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	48288000
CY2018Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	47794000
CY2019Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	6400000
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CY2019Q4	us-gaap	Liabilities Liabilities	5425106000
CY2018Q4	us-gaap	Liabilities Liabilities	5029148000
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	2
CY2019Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	2
CY2018Q4	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	1000
CY2019Q4	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	1000
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CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	2636
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CY2019	msbi	Interest And Fee Income Loans And Leases Taxable InterestAndFeeIncomeLoansAndLeasesTaxable	218416000
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CY2019	msbi	Interest And Fee Income Loans And Leases Tax Exempt InterestAndFeeIncomeLoansAndLeasesTaxExempt	3593000
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CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	129662000
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CY2019	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	172830000
CY2018	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	170657000
CY2017	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	120106000
CY2019	msbi	Wealth Management Revenue WealthManagementRevenue	21832000
CY2018	msbi	Wealth Management Revenue WealthManagementRevenue	20513000
CY2017	msbi	Wealth Management Revenue WealthManagementRevenue	13340000
CY2019	msbi	Fees And Commissions Mortgage Banking And Servicing And Other Commercial FeesAndCommissionsMortgageBankingAndServicingAndOtherCommercial	13170000
CY2018	msbi	Fees And Commissions Mortgage Banking And Servicing And Other Commercial FeesAndCommissionsMortgageBankingAndServicingAndOtherCommercial	10980000
CY2017	msbi	Fees And Commissions Mortgage Banking And Servicing And Other Commercial FeesAndCommissionsMortgageBankingAndServicingAndOtherCommercial	17752000
CY2019	msbi	Fees And Commissions Mortgage Banking And Servicing And Other Residential FeesAndCommissionsMortgageBankingAndServicingAndOtherResidential	2928000
CY2018	msbi	Fees And Commissions Mortgage Banking And Servicing And Other Residential FeesAndCommissionsMortgageBankingAndServicingAndOtherResidential	5729000
CY2017	msbi	Fees And Commissions Mortgage Banking And Servicing And Other Residential FeesAndCommissionsMortgageBankingAndServicingAndOtherResidential	9119000
CY2019	msbi	Commissions And Fees Income From Depositor Accounts CommissionsAndFeesIncomeFromDepositorAccounts	11027000
CY2018	msbi	Commissions And Fees Income From Depositor Accounts CommissionsAndFeesIncomeFromDepositorAccounts	10440000
CY2017	msbi	Commissions And Fees Income From Depositor Accounts CommissionsAndFeesIncomeFromDepositorAccounts	5975000
CY2019	msbi	Fees And Commissions From Debit Cards FeesAndCommissionsFromDebitCards	11992000
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CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	674000
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	464000
CY2017	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	222000
CY2019	msbi	Gains Losses On Sales Of Other Real Estate Excluding Write Downs GainsLossesOnSalesOfOtherRealEstateExcludingWriteDowns	185000
CY2018	msbi	Gains Losses On Sales Of Other Real Estate Excluding Write Downs GainsLossesOnSalesOfOtherRealEstateExcludingWriteDowns	544000
CY2017	msbi	Gains Losses On Sales Of Other Real Estate Excluding Write Downs GainsLossesOnSalesOfOtherRealEstateExcludingWriteDowns	145000
CY2019	us-gaap	Noninterest Income Other NoninterestIncomeOther	13474000
CY2018	us-gaap	Noninterest Income Other NoninterestIncomeOther	12447000
CY2017	us-gaap	Noninterest Income Other NoninterestIncomeOther	7456000
CY2019	us-gaap	Noninterest Income NoninterestIncome	75282000
CY2018	us-gaap	Noninterest Income NoninterestIncome	71791000
CY2017	us-gaap	Noninterest Income NoninterestIncome	59362000
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	91906000
CY2018	us-gaap	Labor And Related Expense LaborAndRelatedExpense	97410000
CY2017	us-gaap	Labor And Related Expense LaborAndRelatedExpense	78712000
CY2019	us-gaap	Occupancy Net OccupancyNet	18762000
CY2018	us-gaap	Occupancy Net OccupancyNet	18914000
CY2017	us-gaap	Occupancy Net OccupancyNet	14659000
CY2019	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	21582000
CY2018	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	26062000
CY2017	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	15171000
CY2019	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	776000
CY2018	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	2209000
CY2017	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1806000
CY2019	us-gaap	Professional Fees ProfessionalFees	8783000
CY2018	us-gaap	Professional Fees ProfessionalFees	12782000
CY2017	us-gaap	Professional Fees ProfessionalFees	14359000
CY2019	us-gaap	Marketing Expense MarketingExpense	3927000
CY2018	us-gaap	Marketing Expense MarketingExpense	4757000
CY2017	us-gaap	Marketing Expense MarketingExpense	3290000
CY2019	us-gaap	Communication Communication	3050000
CY2018	us-gaap	Communication Communication	4405000
CY2017	us-gaap	Communication Communication	2473000
CY2019	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	2191000
CY2018	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	2033000
CY2017	us-gaap	Loan Portfolio Expense LoanPortfolioExpense	1954000
CY2019	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-467000
CY2018	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-524000
CY2017	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-800000
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7090000
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6956000
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3325000
CY2019	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	490000
CY2018	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	-458000
CY2017	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	-4059000
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	17597000
CY2018	us-gaap	Other Noninterest Expense OtherNoninterestExpense	15133000
CY2017	us-gaap	Other Noninterest Expense OtherNoninterestExpense	12389000
CY2019	us-gaap	Noninterest Expense NoninterestExpense	175641000
CY2018	us-gaap	Noninterest Expense NoninterestExpense	191643000
CY2017	us-gaap	Noninterest Expense NoninterestExpense	152997000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	72471000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	50805000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	26471000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16687000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11384000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10415000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	55784000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	39421000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	16056000
CY2019	msbi	Preferred Stock Dividend And Amortization Of Premium PreferredStockDividendAndAmortizationOfPremium	46000
CY2018	msbi	Preferred Stock Dividend And Amortization Of Premium PreferredStockDividendAndAmortizationOfPremium	141000
CY2017	msbi	Preferred Stock Dividend And Amortization Of Premium PreferredStockDividendAndAmortizationOfPremium	83000
CY2019	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	55738000
CY2018	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	39280000
CY2017	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	15973000
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.28
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.69
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.89
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.26
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.66
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.87
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	24288793
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	23130475
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17781631
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	24493431
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	23549025
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	18283214
CY2019	us-gaap	Net Income Loss NetIncomeLoss	55784000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	39421000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	16056000
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	13847000
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-4845000
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	443000
CY2017	us-gaap	Other Comprehensive Income Reclassification Adjustment For Held To Maturity Transferred To Available For Sale Securities Before Tax OtherComprehensiveIncomeReclassificationAdjustmentForHeldToMaturityTransferredToAvailableForSaleSecuritiesBeforeTax	3366000
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	674000
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	464000
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	222000
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	3623000
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-1443000
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	1104000
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	9550000
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3866000
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	2483000
CY2017	msbi	Other Comprehensive Income Loss Amortization Of Unrealized Gain Loss On Securities Transferred To Held To Maturity OtherComprehensiveIncomeLossAmortizationOfUnrealizedGainLossOnSecuritiesTransferredToHeldToMaturity	-188000
CY2017	msbi	Other Comprehensive Income Loss Held To Maturity Tax OtherComprehensiveIncomeLossHeldToMaturityTax	-73000
CY2017	msbi	Other Comprehensive Income Loss Amortization Of Unrealized Gain Loss On Securities Transferred To Held To Maturity Net Of Tax OtherComprehensiveIncomeLossAmortizationOfUnrealizedGainLossOnSecuritiesTransferredToHeldToMaturityNetOfTax	-115000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	9550000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3866000
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2368000
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	65334000
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	35555000
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	18424000
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	321770000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	16056000
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2368000
CY2017	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	184000
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.80
CY2017	msbi	Dividends Common Stock And Share Based Compensation DividendsCommonStockAndShareBasedCompensation	14008000
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1384000
CY2017	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	3225000
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	449545000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	39421000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3866000
CY2018	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	330000
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.88
CY2018	msbi	Dividends Common Stock And Share Based Compensation DividendsCommonStockAndShareBasedCompensation	19977000
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1533000
CY2018	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	2278000
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	608525000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	55784000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	9550000
CY2019	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	191000
CY2019	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	2636000
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.97
CY2019	msbi	Dividends Common Stock And Share Based Compensation DividendsCommonStockAndShareBasedCompensation	23599000
CY2019	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	4019000
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2364000
CY2019	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	5794000
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	661911000
CY2019	us-gaap	Profit Loss ProfitLoss	55784000
CY2018	us-gaap	Profit Loss ProfitLoss	39421000
CY2017	us-gaap	Profit Loss ProfitLoss	16056000
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	16985000
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	9430000
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	9556000
CY2019	us-gaap	Depreciation Depreciation	6583000
CY2018	us-gaap	Depreciation Depreciation	6166000
CY2017	us-gaap	Depreciation Depreciation	5014000
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-32000
CY2018	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-385000
CY2017	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-64000
CY2019	msbi	Amortization Of Operating Lease Right Of Use Asset AmortizationOfOperatingLeaseRightOfUseAsset	2937000
CY2019	msbi	Gains Losses On Sales Of Other Real Estate Excluding Write Downs GainsLossesOnSalesOfOtherRealEstateExcludingWriteDowns	185000
CY2018	msbi	Gains Losses On Sales Of Other Real Estate Excluding Write Downs GainsLossesOnSalesOfOtherRealEstateExcludingWriteDowns	544000
CY2017	msbi	Gains Losses On Sales Of Other Real Estate Excluding Write Downs GainsLossesOnSalesOfOtherRealEstateExcludingWriteDowns	145000
CY2019	msbi	Write Down Of Other Real Estate Owned WriteDownOfOtherRealEstateOwned	16000
CY2018	msbi	Write Down Of Other Real Estate Owned WriteDownOfOtherRealEstateOwned	301000
CY2017	msbi	Write Down Of Other Real Estate Owned WriteDownOfOtherRealEstateOwned	244000
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7090000
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6956000
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3325000
CY2019	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	2364000
CY2018	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	1533000
CY2017	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	1384000
CY2019	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	3640000
CY2018	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	3579000
CY2017	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	2791000
CY2018	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	709000
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	12608000
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10522000
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	12032000
CY2019	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-3757000
CY2018	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-3898000
CY2017	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1960000
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	674000
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	464000
CY2017	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	222000
CY2019	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	504973000
CY2018	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	557305000
CY2017	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	778626000
CY2019	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	530530000
CY2018	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	590282000
CY2017	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	815471000
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	15082000
CY2018	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	11165000
CY2017	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	24295000
CY2019	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	2820000
CY2017	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	2324000
CY2019	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	490000
CY2018	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	-458000
CY2017	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	-4059000
CY2018	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	2949000
CY2017	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	5107000
CY2019	msbi	Proceeds From Sale Of Nonmarketable Equity Securities ProceedsFromSaleOfNonmarketableEquitySecurities	12684000
CY2018	msbi	Proceeds From Sale Of Nonmarketable Equity Securities ProceedsFromSaleOfNonmarketableEquitySecurities	15099000
CY2017	msbi	Proceeds From Sale Of Nonmarketable Equity Securities ProceedsFromSaleOfNonmarketableEquitySecurities	11233000
CY2018	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	431000
CY2019	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	2139000
CY2018	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	-449000
CY2017	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	2496000
CY2019	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-3577000
CY2017	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-1516000
CY2019	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-1399000
CY2017	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	1137000
CY2019	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	1430000
CY2018	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	1785000
CY2017	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	1211000
CY2019	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-2454000
CY2018	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	451000
CY2019	msbi	Increase Decrease On Operating Lease Liabilities IncreaseDecreaseOnOperatingLeaseLiabilities	-3241000
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	8470000
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	5712000
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-3673000
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	3656000
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	3783000
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-2835000
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	119406000
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	97060000
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	70449000
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	200231000
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	76289000
CY2017	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	259098000
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	33464000
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	20178000
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	22595000
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	239760000
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	131220000
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	247929000
CY2017	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	3155000
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	16889000
CY2019	msbi	Equity Securities Fvni Purchases EquitySecuritiesFvniPurchases	82000
CY2018	msbi	Equity Securities Fvni Purchases EquitySecuritiesFvniPurchases	59000
CY2019	msbi	Equity Securities Fv Ni Sales EquitySecuritiesFvNiSales	105000
CY2018	msbi	Equity Securities Fv Ni Sales EquitySecuritiesFvNiSales	7733000
CY2019	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	145772000
CY2018	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	131114000
CY2017	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	238398000
CY2019	msbi	Proceeds From Sale Of Consumer Loans Held For Sale ProceedsFromSaleOfConsumerLoansHeldForSale	59486000
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5538000
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	7200000
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	6182000
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	32000
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	33000
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	4286000
CY2019	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	1647000
CY2018	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	3879000
CY2017	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	6189000
CY2019	us-gaap	Proceeds From Sale Of Mortgage Servicing Rights Msr ProceedsFromSaleOfMortgageServicingRightsMSR	3288000
CY2018	us-gaap	Proceeds From Sale Of Mortgage Servicing Rights Msr ProceedsFromSaleOfMortgageServicingRightsMSR	12994000
CY2018	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1449000
CY2019	msbi	Payments To Acquire Nonmarketable Equity Securities PaymentsToAcquireNonmarketableEquitySecurities	14263000
CY2018	msbi	Payments To Acquire Nonmarketable Equity Securities PaymentsToAcquireNonmarketableEquitySecurities	20737000
CY2017	msbi	Payments To Acquire Nonmarketable Equity Securities PaymentsToAcquireNonmarketableEquitySecurities	18376000
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	54459000
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-6661000
CY2019	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	-69879000
CY2018	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	-36153000
CY2017	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	18519000
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-234607000
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	148344000
CY2018	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-168049000
CY2017	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-13144000
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-42206000
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-31891000
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	10135000
CY2019	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	360000000
CY2018	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	1017080000
CY2017	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	447357000
CY2019	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	482190000
CY2018	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	886726000
CY2017	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	320857000
CY2017	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	39964000
CY2019	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	32857000
CY2018	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	4286000
CY2017	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	3198000
CY2019	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	98265000
CY2017	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	39354000
CY2019	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	17765000
CY2019	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	191000
CY2018	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	330000
CY2017	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	184000
CY2019	msbi	Payments For Redemption Of Preferred Stock PaymentsForRedemptionOfPreferredStock	2636000
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	23599000
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	19977000
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	14008000
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	4019000
CY2019	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	5794000
CY2018	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	2278000
CY2017	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	3225000
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	6940000
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-91901000
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	188644000
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	180805000
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1502000
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	24486000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	213700000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	215202000
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	190716000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	394505000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	213700000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	215202000
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	479000
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	580000
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	653000
CY2017	us-gaap	Debt Securities Held To Maturity Transfer Amount DebtSecuritiesHeldToMaturityTransferAmount	64520000
CY2018	msbi	Transfer Of Investment Securities Available For Sale To Equity Securities TransferOfInvestmentSecuritiesAvailableForSaleToEquitySecurities	2830000
CY2019	us-gaap	Interest Paid Net InterestPaidNet	58158000
CY2018	us-gaap	Interest Paid Net InterestPaidNet	40956000
CY2017	us-gaap	Interest Paid Net InterestPaidNet	21965000
CY2019	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	59486000
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	3819000
CY2018	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1104000
CY2017	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	3718000
CY2019	msbi	Transfer Of Premises And Equipment To Assets Held For Sale TransferOfPremisesAndEquipmentToAssetsHeldForSale	4350000
CY2017	msbi	Transfer Of Premises And Equipment To Assets Held For Sale TransferOfPremisesAndEquipmentToAssetsHeldForSale	3988000
CY2019	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	887000
CY2018	msbi	Transfer Of Mortgage Servicing Rights To Mortgage Servicing Rights Held For Sale TransferOfMortgageServicingRightsToMortgageServicingRightsHeldForSale	3649000
CY2017	msbi	Transfer Of Mortgage Servicing Rights To Mortgage Servicing Rights Held For Sale TransferOfMortgageServicingRightsToMortgageServicingRightsHeldForSale	14234000
CY2019	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 6pt 0pt;"><span style="font-style:italic;font-weight:bold;">Credit-Related Financial Instruments</span></p><p style="font-family:'Times New Roman';font-size:10pt;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">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. </p><p style="font-family:'Times New Roman';font-size:10pt;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">A liability for losses related to unfunded commitments is maintained by the Company at a level believed by management to be sufficient to absorb estimated probable losses related to unfunded credit facilities and is included in other liabilities in the consolidated balance sheets. The determination of the adequacy of the liability is based on an evaluation of the unfunded credit facilities, including an assessment of historical commitment utilization experience, credit risk grading and historical loss rates. This process takes into consideration the same risk elements that are analyzed in the determination of the adequacy of the Company’s allowance for loan losses, as discussed above. Net adjustments to the liability for unfunded commitments are included in other noninterest expense in the consolidated statements of income. The liability for unfunded commitments totaled $1.2 million at both December 31, 2019 and 2018. </p>
CY2018Q4	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	1200000
CY2019Q4	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	1200000
CY2019Q4	msbi	Required Cash Reserve RequiredCashReserve	36900000
CY2018Q4	msbi	Required Cash Reserve RequiredCashReserve	33600000
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	639168000
CY2019	us-gaap	Available For Sale Debt Securities Gross Unrealized Gain AvailableForSaleDebtSecuritiesGrossUnrealizedGain	11139000
CY2019	us-gaap	Available For Sale Debt Securities Gross Unrealized Loss AvailableForSaleDebtSecuritiesGrossUnrealizedLoss	874000
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	649433000
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	115677000
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	737000
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	11085000
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	137000
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	126762000
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	874000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	244251000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1445000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	205649000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	5516000
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	449900000
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	6961000
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	46
CY2019Q4	msbi	Available For Sale Securities In Unrealized Loss Positions Aggregate Depreciation Percentage AvailableForSaleSecuritiesInUnrealizedLossPositionsAggregateDepreciationPercentage	0.0068
CY2018	us-gaap	Loans And Leases Receivable Impaired Interest Income Recognized Change In Present Value Attributable To Passage Of Time LoansAndLeasesReceivableImpairedInterestIncomeRecognizedChangeInPresentValueAttributableToPassageOfTime	0
CY2019	us-gaap	Loans And Leases Receivable Impaired Interest Income Recognized Change In Present Value Attributable To Passage Of Time LoansAndLeasesReceivableImpairedInterestIncomeRecognizedChangeInPresentValueAttributableToPassageOfTime	0
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis	37463000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	37669000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis	73251000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	75147000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis	169906000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	173900000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis	19510000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	20595000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	639168000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	649433000
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	33464000
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	20178000
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	22595000
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	786000
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	542000
CY2017	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	242000
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	190000
CY2018	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	25000
CY2017	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	20000
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	5600000
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	3300000
CY2019	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	105000
CY2018	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	7733000
CY2019	us-gaap	Equity Securities Fv Ni Realized Gain EquitySecuritiesFvNiRealizedGain	78000
CY2018	us-gaap	Equity Securities Fv Ni Realized Loss EquitySecuritiesFvNiRealizedLoss	53000
CY2019	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	93000
CY2018	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-10000
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4401410000
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4137551000
CY2019Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	2200000
CY2018Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	11600000
CY2019Q4	us-gaap	Deferred Discounts Finance Charges And Interest Included In Receivables DeferredDiscountsFinanceChargesAndInterestIncludedInReceivables	39600000
CY2018Q4	us-gaap	Deferred Discounts Finance Charges And Interest Included In Receivables DeferredDiscountsFinanceChargesAndInterestIncludedInReceivables	29200000
CY2019	msbi	Number Of Main Regions NumberOfMainRegions	4
CY2017	us-gaap	Loans And Leases Receivable Impaired Interest Income Recognized Change In Present Value Attributable To Passage Of Time LoansAndLeasesReceivableImpairedInterestIncomeRecognizedChangeInPresentValueAttributableToPassageOfTime	0
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	20903000
CY2019Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P5Y
CY2017	msbi	Loans And Leases Receivable Impaired Troubled Debt Interest Income Recognized LoansAndLeasesReceivableImpairedTroubledDebtInterestIncomeRecognized	85000
CY2018Q4	msbi	Impaired Financing Receivable Difference Between Recorded Investment And Unpaid Principal Balance ImpairedFinancingReceivableDifferenceBetweenRecordedInvestmentAndUnpaidPrincipalBalance	11400000
CY2019Q4	msbi	Impaired Financing Receivable Difference Between Recorded Investment And Unpaid Principal Balance ImpairedFinancingReceivableDifferenceBetweenRecordedInvestmentAndUnpaidPrincipalBalance	15300000
CY2019	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	2200000
CY2018	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	1800000
CY2017	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	860000
CY2019	msbi	Loans And Leases Receivable Impaired Troubled Debt Interest Income Recognized LoansAndLeasesReceivableImpairedTroubledDebtInterestIncomeRecognized	117000
CY2018	msbi	Loans And Leases Receivable Impaired Troubled Debt Interest Income Recognized LoansAndLeasesReceivableImpairedTroubledDebtInterestIncomeRecognized	97000
CY2019	us-gaap	Financing Receivable Change In Method Credit Loss Expense Reversal FinancingReceivableChangeInMethodCreditLossExpenseReversal	2000000.0
CY2018	us-gaap	Financing Receivable Change In Method Credit Loss Expense Reversal FinancingReceivableChangeInMethodCreditLossExpenseReversal	557000
CY2018Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0
CY2019Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0
CY2019	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	37
CY2019	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	3897000
CY2019	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	3140000
CY2018	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	36
CY2018	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	2832000
CY2018	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	2799000
CY2017	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	6
CY2017	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1213000
CY2017	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1130000
CY2019	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	6400000
CY2018	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	6100000
CY2017	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	5500000
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	20903000
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	16985000
CY2019	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	12068000
CY2019	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	2208000
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	28028000
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	16431000
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	9430000
CY2018	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	6989000
CY2018	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	2031000
CY2019Q4	msbi	Financing Receivable Allowance For Credit Losses For Nonimpaired Loans Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesForNonimpairedLoansCollectivelyEvaluatedForImpairment	16080000
CY2019Q4	msbi	Financing Receivable Allowance For Credit Losses For Loans Acquired With Deteriorated Credit Quality FinancingReceivableAllowanceForCreditLossesForLoansAcquiredWithDeterioratedCreditQuality	1183000
CY2019	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	4000000.0
CY2018	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	1700000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	9977000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	788000
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	14862000
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	9556000
CY2017	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	9822000
CY2017	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	1835000
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	16431000
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	28028000
CY2019Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	35736000
CY2019Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	6346000
CY2019Q4	msbi	Financing Receivable Nonimpaired Loans Collectively Evaluated For Impairment FinancingReceivableNonimpairedLoansCollectivelyEvaluatedForImpairment	4316617000
CY2019Q4	msbi	Financing Receivable Nonimpaired Loans Loans Acquired With Deteriorated Credit Quality FinancingReceivableNonimpairedLoansLoansAcquiredWithDeterioratedCreditQuality	42711000
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4401410000
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	5492000
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	493000
CY2018Q4	msbi	Financing Receivable Allowance For Credit Losses For Nonimpaired Loans Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesForNonimpairedLoansCollectivelyEvaluatedForImpairment	13350000
CY2018Q4	msbi	Financing Receivable Allowance For Credit Losses For Loans Acquired With Deteriorated Credit Quality FinancingReceivableAllowanceForCreditLossesForLoansAcquiredWithDeterioratedCreditQuality	1568000
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	20903000
CY2018Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	37802000
CY2018Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	5097000
CY2018Q4	msbi	Financing Receivable Nonimpaired Loans Collectively Evaluated For Impairment FinancingReceivableNonimpairedLoansCollectivelyEvaluatedForImpairment	4051677000
CY2018Q4	msbi	Financing Receivable Nonimpaired Loans Loans Acquired With Deteriorated Credit Quality FinancingReceivableNonimpairedLoansLoansAcquiredWithDeterioratedCreditQuality	42975000
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4137551000
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	128265000
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	126230000
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	37210000
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	31390000
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	91055000
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	94840000
CY2019	us-gaap	Depreciation Depreciation	6600000
CY2018	us-gaap	Depreciation Depreciation	6200000
CY2017	us-gaap	Depreciation Depreciation	5000000.0
CY2019Q3	msbi	Number Of Banking Facilities To Be Closed To Homestar NumberOfBankingFacilitiesToBeClosedToHomestar	1
CY2019Q3	msbi	Number Of Banking Facilities To Be Consolidated To Home Star Banking Facilities NumberOfBankingFacilitiesToBeConsolidatedToHomeStarBankingFacilities	2
CY2019Q3	msbi	Number Of Banking Facilities To Be Consolidated To Footprint NumberOfBankingFacilitiesToBeConsolidatedToFootprint	3
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	3200000
CY2017	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	16000
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	3774000
CY2018	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Aggregate Write Downs ValuationAllowanceForImpairmentOfRecognizedServicingAssetsAggregateWriteDowns	1380000
CY2017Q4	msbi	Servicing Asset At Fair Value Amount Net Of Valuation Allowance ServicingAssetAtFairValueAmountNetOfValuationAllowance	52460000
CY2018Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	53447000
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	14200000
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	15400000
CY2018Q4	msbi	Servicing Asset At Fair Value Amount Net Of Valuation Allowance ServicingAssetAtFairValueAmountNetOfValuationAllowance	53447000
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	2752000
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	3241000
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	18482000
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y3D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0298
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	2700000
CY2018	us-gaap	Operating Lease Expense OperatingLeaseExpense	3200000
CY2017	us-gaap	Operating Lease Expense OperatingLeaseExpense	2700000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	2814000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2854000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2677000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2120000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1340000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	5588000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	17393000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	2024000
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	15369000
CY2018Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	56252000
CY2017Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	55714000
CY2016Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	52006000
CY2019Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	57637000
CY2018Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	56252000
CY2017Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	55714000
CY2018Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	2805000
CY2017Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	3254000
CY2016Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	1712000
CY2019	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	2698000
CY2018	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	931000
CY2017	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	1542000
CY2019	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Aggregate Write Downs ValuationAllowanceForImpairmentOfRecognizedServicingAssetsAggregateWriteDowns	559000
CY2019Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	4944000
CY2018Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	2805000
CY2017Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	3254000
CY2019Q4	msbi	Servicing Asset At Fair Value Amount Net Of Valuation Allowance ServicingAssetAtFairValueAmountNetOfValuationAllowance	52693000
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Four To Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromFourToFiveYearsOfBalanceSheetDate	100000000
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	400000
CY2017Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	52460000
CY2016Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	50294000
CY2019Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	52693000
CY2018Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	53447000
CY2017Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	52460000
CY2019Q4	us-gaap	Goodwill Goodwill	171800000
CY2018Q4	us-gaap	Goodwill Goodwill	164700000
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2019Q4	us-gaap	Goodwill Goodwill	171758000
CY2018Q4	us-gaap	Goodwill Goodwill	164673000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	71083000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	36197000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	34886000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	66483000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	29107000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	37376000
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7100000
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7000000.0
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3300000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	6504000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	5675000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	4900000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	4125000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	3563000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	10119000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	34886000
CY2019Q4	us-gaap	Derivative Asset Notional Amount DerivativeAssetNotionalAmount	443706000
CY2018Q4	us-gaap	Derivative Asset Notional Amount DerivativeAssetNotionalAmount	541581000
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	3350000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16687000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11384000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10415000
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due After Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate	80181000
CY2019Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	493311000
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-921000
CY2019	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	1100000
CY2018	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	2000000.0
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	4492000
CY2019Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1019472000
CY2018Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	972164000
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1342788000
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1002275000
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	787662000
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	862171000
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	522456000
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	442132000
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Time Deposits InterestBearingDomesticDepositTimeDeposits	871876000
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Time Deposits InterestBearingDomesticDepositTimeDeposits	795428000
CY2019Q4	us-gaap	Deposits Deposits	4544254000
CY2018Q4	us-gaap	Deposits Deposits	4074170000
CY2019Q4	msbi	Time Deposits250000 Or More TimeDeposits250000OrMore	122700000
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	49700000
CY2018Q4	msbi	Time Deposits250000 Or More TimeDeposits250000OrMore	76000000.0
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	161600000
CY2019Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	507606000
CY2019Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	306376000
CY2019Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	32304000
CY2019Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	18204000
CY2019Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	7367000
CY2019Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	19000
CY2019Q4	us-gaap	Time Deposits TimeDeposits	871876000
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	4321000
CY2018Q4	msbi	Deferred Tax Assets Nonaccrual Interest DeferredTaxAssetsNonaccrualInterest	730000
CY2018Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	802000
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.35
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Two To Three Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate	65754000
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Three To Four Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate	235094000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	588000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Contingencies DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsContingencies	319000
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	82029000
CY2018Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	124235000
CY2019	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	121168000
CY2018	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	138135000
CY2019	us-gaap	Shortterm Debt Maximum Monthend Outstanding Amount ShorttermDebtMaximumMonthendOutstandingAmount	138907000
CY2018	us-gaap	Shortterm Debt Maximum Monthend Outstanding Amount ShorttermDebtMaximumMonthendOutstandingAmount	173387000
CY2019	msbi	Short Term Debt Weighted Average Interest Rate During Period ShortTermDebtWeightedAverageInterestRateDuringPeriod	0.0069
CY2018	msbi	Short Term Debt Weighted Average Interest Rate During Period ShortTermDebtWeightedAverageInterestRateDuringPeriod	0.0051
CY2019Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0067
CY2018Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0071
CY2019Q4	us-gaap	Collateralized Agreements CollateralizedAgreements	87400000
CY2018Q4	us-gaap	Collateralized Agreements CollateralizedAgreements	132200000
CY2018Q4	us-gaap	Line Of Credit LineOfCredit	0
CY2019Q4	us-gaap	Line Of Credit LineOfCredit	0
CY2019Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	20000000.0
CY2019Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	493311000
CY2018Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	640631000
CY2019Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	1940000000
CY2018Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	2220000000
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	3897000
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From One To Two Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate	8385000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	700000
CY2019Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	15510000
CY2019Q4	us-gaap	Subordinated Debt SubordinatedDebt	176653000
CY2018Q4	us-gaap	Subordinated Debt SubordinatedDebt	94134000
CY2015Q2	msbi	Number Of Tranches Of Debt Issued NumberOfTranchesOfDebtIssued	2
CY2019	msbi	Fixed Interest Rate Duration FixedInterestRateDuration	P5Y
CY2019Q3	msbi	Number Of Tranches Of Debt Issued NumberOfTranchesOfDebtIssued	2
CY2019Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	48288000
CY2018Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	47794000
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	2318000
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	55000
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-696000
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	8287000
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	6748000
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	11632000
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1761000
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	807000
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.21
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	15218000
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	10665000
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	9244000
CY2019	msbi	Income Tax Reconciliation Tax Exempt Interest IncomeTaxReconciliationTaxExemptInterest	-1362000
CY2018	msbi	Income Tax Reconciliation Tax Exempt Interest IncomeTaxReconciliationTaxExemptInterest	-1441000
CY2017	msbi	Income Tax Reconciliation Tax Exempt Interest IncomeTaxReconciliationTaxExemptInterest	-1635000
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4805000
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4028000
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-110000
CY2019	msbi	Income Tax Reconciliation Increase In Cash Surrender Value Of Life Insurance Policies IncomeTaxReconciliationIncreaseInCashSurrenderValueOfLifeInsurancePolicies	764000
CY2018	msbi	Income Tax Reconciliation Increase In Cash Surrender Value Of Life Insurance Policies IncomeTaxReconciliationIncreaseInCashSurrenderValueOfLifeInsurancePolicies	854000
CY2017	msbi	Income Tax Reconciliation Increase In Cash Surrender Value Of Life Insurance Policies IncomeTaxReconciliationIncreaseInCashSurrenderValueOfLifeInsurancePolicies	969000
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-484000
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-62000
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-1297000
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	110000
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	71000
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	389000
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	62000
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-409000
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-229000
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	4540000
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-898000
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-614000
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	482000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16687000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11384000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10415000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	7708000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	5748000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	2332000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	2158000
CY2019Q4	msbi	Deferred Tax Assets Loans DeferredTaxAssetsLoans	5386000
CY2018Q4	msbi	Deferred Tax Assets Loans DeferredTaxAssetsLoans	6579000
CY2017	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	184000
CY2018Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	1330000
CY2018Q4	us-gaap	Deferred Tax Assets Charitable Contribution Carryforwards DeferredTaxAssetsCharitableContributionCarryforwards	202000
CY2019Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	1217000
CY2019Q4	msbi	Deferred Tax Assets Write Down Of Other Real Estate Owned DeferredTaxAssetsWriteDownOfOtherRealEstateOwned	469000
CY2018Q4	msbi	Deferred Tax Assets Write Down Of Other Real Estate Owned DeferredTaxAssetsWriteDownOfOtherRealEstateOwned	563000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1049000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1041000
CY2019Q4	msbi	Deferred Tax Assets Nonaccrual Interest DeferredTaxAssetsNonaccrualInterest	782000
CY2018Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	17417000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Legal Settlements DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLegalSettlements	179000
CY2018Q4	msbi	Deferred Tax Assets Repurchase Reserves DeferredTaxAssetsRepurchaseReserves	135000
CY2019Q4	msbi	Deferred Tax Assets Operating Lease Liabilities DeferredTaxAssetsOperatingLeaseLiabilities	4227000
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1122000
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	720000
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	40390000
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	38623000
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	62000
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	40328000
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	38623000
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1735000
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	3522000
CY2019Q4	msbi	Deferred Tax Liabilities Unrealized Gains On Investment Securities DeferredTaxLiabilitiesUnrealizedGainsOnInvestmentSecurities	2846000
CY2019Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	11436000
CY2018Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	11460000
CY2019Q4	msbi	Deferred Tax Liabilities Fair Value Adjustment On Trust Preferred Debentures DeferredTaxLiabilitiesFairValueAdjustmentOnTrustPreferredDebentures	4560000
CY2018Q4	msbi	Deferred Tax Liabilities Fair Value Adjustment On Trust Preferred Debentures DeferredTaxLiabilitiesFairValueAdjustmentOnTrustPreferredDebentures	4694000
CY2018Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	391000
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	3539000
CY2018Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	1495000
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	8380000
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	8741000
CY2018Q4	msbi	Deferred Tax Liabilities Changes In Accounting Method DeferredTaxLiabilitiesChangesInAccountingMethod	74000
CY2019Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	708000
CY2018Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	708000
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Software DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware	1638000
CY2018Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Software DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware	1667000
CY2019Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	12313000
CY2018Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	4351000
CY2019Q4	msbi	Deferred Tax Liabilities Operating Lease Right Of Use Assets DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets	3912000
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	539000
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	269000
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	51606000
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	37372000
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	11278000
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	1251000
CY2018Q4	msbi	Accumulation Of Prior Years Earnings Representing Tax Bad Debt Deductions AccumulationOfPriorYearsEarningsRepresentingTaxBadDebtDeductions	3100000
CY2019Q4	msbi	Accumulation Of Prior Years Earnings Representing Tax Bad Debt Deductions AccumulationOfPriorYearsEarningsRepresentingTaxBadDebtDeductions	3100000
CY2017Q4	us-gaap	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Change In Tax Rate Deferred Tax Asset Provisional Income Tax Expense TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense	4500000
CY2017Q4	us-gaap	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Change In Tax Rate Deferred Tax Asset Provisional Income Tax Expense TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense	4500000
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0
CY2019Q4	us-gaap	Tax Credit Carryforward Valuation Allowance TaxCreditCarryforwardValuationAllowance	62000
CY2019	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	0
CY2019	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.50
CY2019	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.50
CY2019	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	191000
CY2018	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	330000
CY2017	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	0
CY2018	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	0
CY2019	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.06
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1700000
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1800000
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1200000
CY2019	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P3Y1M6D
CY2019	us-gaap	Net Income Loss NetIncomeLoss	55784000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	39421000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	16056000
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.66
CY2019Q1	msbi	Minimum Capital Conservation Buffer Percentage MinimumCapitalConservationBufferPercentage	0.025
CY2019	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	55738000
CY2019	msbi	Preferred Stock Premium Amortization PreferredStockPremiumAmortization	145000
CY2018	msbi	Preferred Stock Premium Amortization PreferredStockPremiumAmortization	189000
CY2017	msbi	Preferred Stock Premium Amortization PreferredStockPremiumAmortization	101000
CY2018	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	39280000
CY2017	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	15973000
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	23389000
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	19838000
CY2017	us-gaap	Dividends Common Stock DividendsCommonStock	13922000
CY2019	us-gaap	Dividends Share Based Compensation DividendsShareBasedCompensation	210000
CY2018	us-gaap	Dividends Share Based Compensation DividendsShareBasedCompensation	139000
CY2017	us-gaap	Dividends Share Based Compensation DividendsShareBasedCompensation	86000
CY2019	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	267000
CY2018	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	123000
CY2017	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	11000
CY2019	msbi	Undistributed Earnings To Common Shareholders UndistributedEarningsToCommonShareholders	31872000
CY2018	msbi	Undistributed Earnings To Common Shareholders UndistributedEarningsToCommonShareholders	19180000
CY2017	msbi	Undistributed Earnings To Common Shareholders UndistributedEarningsToCommonShareholders	1954000
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	23389000
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	19838000
CY2017	us-gaap	Dividends Common Stock DividendsCommonStock	13922000
CY2019	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Basic UndistributedEarningsLossAvailableToCommonShareholdersBasic	31872000
CY2018	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Basic UndistributedEarningsLossAvailableToCommonShareholdersBasic	19180000
CY2017	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Basic UndistributedEarningsLossAvailableToCommonShareholdersBasic	1954000
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	55261000
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	39018000
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	15876000
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	23389000
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	19838000
CY2017	us-gaap	Dividends Common Stock DividendsCommonStock	13922000
CY2019	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Diluted UndistributedEarningsLossAvailableToCommonShareholdersDiluted	31872000
CY2018	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Diluted UndistributedEarningsLossAvailableToCommonShareholdersDiluted	19180000
CY2017	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Diluted UndistributedEarningsLossAvailableToCommonShareholdersDiluted	1954000
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	55261000
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	39018000
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	15876000
CY2019	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	2000
CY2018	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	2000
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	55263000
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	39020000
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	15876000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	24288793
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	23130475
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17781631
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	204638
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	418550
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	501583
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	24493431
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	23549025
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	18283214
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.28
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.69
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.89
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.26
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.67
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.87
CY2019Q1	msbi	Minimum Capital Conservation Buffer Percentage MinimumCapitalConservationBufferPercentage	0.025
CY2019Q1	msbi	Minimum Capital Conservation Buffer Percentage MinimumCapitalConservationBufferPercentage	0.025
CY2019Q4	us-gaap	Capital Capital	772572000
CY2019Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1472
CY2019Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	515548000
CY2019Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.1050
CY2019Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets CommonEquityTier1CapitalToRiskWeightedAssets	451696000
CY2019Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets Ratio CommonEquityTier1CapitalToRiskWeightedAssetsRatio	0.0920
CY2019Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets Required For Adequate Capital Amount CommonEquityTier1CapitalToRiskWeightedAssetsRequiredForAdequateCapitalAmount	343699000
CY2019Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets Required For Adequate Capital Ratio CommonEquityTier1CapitalToRiskWeightedAssetsRequiredForAdequateCapitalRatio	0.0700
CY2019Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	516647000
CY2019Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1052
CY2019Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	417348000
CY2019Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0850
CY2019Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	516647000
CY2019Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0874
CY2019Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	236504000
CY2019Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2018Q4	us-gaap	Capital Capital	584409000
CY2018Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1279
CY2018Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	479781000
CY2018Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.1050
CY2018Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	400480000
CY2018Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.0876
CY2018Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	319854000
CY2018Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0700
CY2018Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets CommonEquityTier1CapitalToRiskWeightedAssets	468212000
CY2018Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets Ratio CommonEquityTier1CapitalToRiskWeightedAssetsRatio	0.1025
CY2018Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets Required For Adequate Capital Amount CommonEquityTier1CapitalToRiskWeightedAssetsRequiredForAdequateCapitalAmount	388394000
CY2018Q4	msbi	Common Equity Tier1 Capital To Risk Weighted Assets Required For Adequate Capital Ratio CommonEquityTier1CapitalToRiskWeightedAssetsRequiredForAdequateCapitalRatio	0.0850
CY2018Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	468212000
CY2018Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0853
CY2018Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	219602000
CY2018Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2019Q4	us-gaap	Fair Value Assets Level1 To Level2 Transfers Amount FairValueAssetsLevel1ToLevel2TransfersAmount	0
CY2019Q4	us-gaap	Loss Contingency Estimate Of Possible Loss LossContingencyEstimateOfPossibleLoss	0
CY2019	msbi	Noninterest Income Out Of Scope Of Topic606 NoninterestIncomeOutOfScopeOfTopic606	25450000
CY2019	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	2139000
CY2017	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	2324000
CY2019	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	490000
CY2018	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	-458000
CY2017	msbi	Gain Loss On Sale Of Mortgage Service Rights Held For Sale GainLossOnSaleOfMortgageServiceRightsHeldForSale	-4059000
CY2019	msbi	Fair Value Gains Losses Recognized On Assets Measured On Non Recurring Basis Impaired Loans FairValueGainsLossesRecognizedOnAssetsMeasuredOnNonRecurringBasisImpairedLoans	10259000
CY2018	msbi	Fair Value Gains Losses Recognized On Assets Measured On Non Recurring Basis Impaired Loans FairValueGainsLossesRecognizedOnAssetsMeasuredOnNonRecurringBasisImpairedLoans	5800000
CY2017	msbi	Fair Value Gains Losses Recognized On Assets Measured On Non Recurring Basis Impaired Loans FairValueGainsLossesRecognizedOnAssetsMeasuredOnNonRecurringBasisImpairedLoans	7096000
CY2019	msbi	Fair Value Gains Losses Recognized On Assets Measured On Non Recurring Basis Other Real Estate Owned FairValueGainsLossesRecognizedOnAssetsMeasuredOnNonRecurringBasisOtherRealEstateOwned	16000
CY2018	msbi	Fair Value Gains Losses Recognized On Assets Measured On Non Recurring Basis Other Real Estate Owned FairValueGainsLossesRecognizedOnAssetsMeasuredOnNonRecurringBasisOtherRealEstateOwned	301000
CY2017	msbi	Fair Value Gains Losses Recognized On Assets Measured On Non Recurring Basis Other Real Estate Owned FairValueGainsLossesRecognizedOnAssetsMeasuredOnNonRecurringBasisOtherRealEstateOwned	253000
CY2019	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-3577000
CY2017	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-1516000
CY2019	msbi	Fair Value Gains Losses Recognized On Assets Measured On Non Recurring Basis FairValueGainsLossesRecognizedOnAssetsMeasuredOnNonRecurringBasis	15501000
CY2018	msbi	Fair Value Gains Losses Recognized On Assets Measured On Non Recurring Basis FairValueGainsLossesRecognizedOnAssetsMeasuredOnNonRecurringBasis	6559000
CY2017	msbi	Fair Value Gains Losses Recognized On Assets Measured On Non Recurring Basis FairValueGainsLossesRecognizedOnAssetsMeasuredOnNonRecurringBasis	15248000
CY2019Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	16431000
CY2019Q4	us-gaap	Fair Value Option Loans Held As Assets Aggregate Difference FairValueOptionLoansHeldAsAssetsAggregateDifference	652000
CY2019Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	15779000
CY2018Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	30401000
CY2018Q4	us-gaap	Fair Value Option Loans Held As Assets Aggregate Difference FairValueOptionLoansHeldAsAssetsAggregateDifference	1079000
CY2018Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	29322000
CY2019	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-382000
CY2018	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	258000
CY2017	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-724000
CY2018	us-gaap	Loss Contingency Loss In Period LossContingencyLossInPeriod	11000
CY2017	us-gaap	Loss Contingency Loss In Period LossContingencyLossInPeriod	17000
CY2019	us-gaap	Loss Contingency Loss In Period LossContingencyLossInPeriod	0
CY2019Q4	msbi	Liability For Unresolved Repurchase Demands LiabilityForUnresolvedRepurchaseDemands	289000
CY2018Q4	msbi	Liability For Unresolved Repurchase Demands LiabilityForUnresolvedRepurchaseDemands	492000
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	189815000
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	16985000
CY2019	us-gaap	Noninterest Income NoninterestIncome	75282000
CY2019	us-gaap	Noninterest Expense NoninterestExpense	175641000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	72471000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16687000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	55784000
CY2019Q4	us-gaap	Assets Assets	6087017000
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	180087000
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	9430000
CY2018	us-gaap	Noninterest Income NoninterestIncome	71791000
CY2018	us-gaap	Noninterest Expense NoninterestExpense	191643000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	50805000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11384000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	39421000
CY2018Q4	us-gaap	Assets Assets	5637673000
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	129662000
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	9556000
CY2017	us-gaap	Noninterest Income NoninterestIncome	59362000
CY2017	us-gaap	Noninterest Expense NoninterestExpense	152997000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	26471000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10415000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	16056000
CY2017Q4	us-gaap	Assets Assets	4412701000
CY2018	msbi	Rent Related Party RentRelatedParty	712000
CY2017	msbi	Rent Related Party RentRelatedParty	719000
CY2019	us-gaap	Noninterest Income NoninterestIncome	75282000
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2019Q1	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	13948000
CY2019Q2	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	16321000
CY2019Q3	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	12677000
CY2019Q4	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	12792000
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.58
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
CY2019Q1	us-gaap	Interest Income Operating InterestIncomeOperating	59432000
CY2019Q2	us-gaap	Interest Income Operating InterestIncomeOperating	60636000
CY2019Q3	us-gaap	Interest Income Operating InterestIncomeOperating	65006000
CY2019Q4	us-gaap	Interest Income Operating InterestIncomeOperating	64444000
CY2019Q1	us-gaap	Interest Expense InterestExpense	13831000
CY2019Q2	us-gaap	Interest Expense InterestExpense	14559000
CY2019Q3	us-gaap	Interest Expense InterestExpense	15556000
CY2019Q4	us-gaap	Interest Expense InterestExpense	15757000
CY2019Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	45601000
CY2019Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	46077000
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	49450000
CY2019Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	48687000
CY2019Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	3243000
CY2019Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4076000
CY2019Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4361000
CY2019Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	5305000
CY2019Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	42358000
CY2019Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	42001000
CY2019Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	45089000
CY2019Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	43382000
CY2019Q1	us-gaap	Noninterest Income NoninterestIncome	17075000
CY2019Q2	us-gaap	Noninterest Income NoninterestIncome	19587000
CY2019Q3	us-gaap	Noninterest Income NoninterestIncome	19606000
CY2019Q4	us-gaap	Noninterest Income NoninterestIncome	19014000
CY2019Q1	us-gaap	Noninterest Expense NoninterestExpense	41097000
CY2019Q2	us-gaap	Noninterest Expense NoninterestExpense	40194000
CY2019Q3	us-gaap	Noninterest Expense NoninterestExpense	48025000
CY2019Q4	us-gaap	Noninterest Expense NoninterestExpense	46325000
CY2019Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	18336000
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	21394000
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	16670000
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	16071000
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4354000
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5039000
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4015000
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3279000
CY2019Q1	us-gaap	Profit Loss ProfitLoss	13982000
CY2019Q2	us-gaap	Profit Loss ProfitLoss	16355000
CY2019Q3	us-gaap	Profit Loss ProfitLoss	12655000
CY2019Q4	us-gaap	Profit Loss ProfitLoss	12792000
CY2019Q1	msbi	Preferred Stock Dividends And Premium Amortization PreferredStockDividendsAndPremiumAmortization	34000
CY2019Q2	msbi	Preferred Stock Dividends And Premium Amortization PreferredStockDividendsAndPremiumAmortization	34000
CY2019Q3	msbi	Preferred Stock Dividends And Premium Amortization PreferredStockDividendsAndPremiumAmortization	-22000
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.52
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.57
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2018Q1	us-gaap	Interest Income Operating InterestIncomeOperating	46505000
CY2018Q2	us-gaap	Interest Income Operating InterestIncomeOperating	58283000
CY2018Q3	us-gaap	Interest Income Operating InterestIncomeOperating	56987000
CY2018Q4	us-gaap	Interest Income Operating InterestIncomeOperating	61592000
CY2018Q1	us-gaap	Interest Expense InterestExpense	8320000
CY2018Q2	us-gaap	Interest Expense InterestExpense	9997000
CY2018Q3	us-gaap	Interest Expense InterestExpense	11906000
CY2018Q4	us-gaap	Interest Expense InterestExpense	13057000
CY2018Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	38185000
CY2018Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	48286000
CY2018Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	45081000
CY2018Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	48535000
CY2018Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2006000
CY2018Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1854000
CY2018Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2103000
CY2018Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	3467000
CY2018Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	36179000
CY2018Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	46432000
CY2018Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	42978000
CY2018Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	45068000
CY2018Q1	us-gaap	Noninterest Income NoninterestIncome	16502000
CY2018Q2	us-gaap	Noninterest Income NoninterestIncome	15847000
CY2018Q3	us-gaap	Noninterest Income NoninterestIncome	18272000
CY2018Q4	us-gaap	Noninterest Income NoninterestIncome	21170000
CY2018Q1	us-gaap	Noninterest Expense NoninterestExpense	49499000
CY2018Q2	us-gaap	Noninterest Expense NoninterestExpense	46452000
CY2018Q3	us-gaap	Noninterest Expense NoninterestExpense	50317000
CY2018Q4	us-gaap	Noninterest Expense NoninterestExpense	45375000
CY2018Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	3182000
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	15827000
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	10933000
CY2018Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	20863000
CY2018Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1376000
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3045000
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2436000
CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4527000
CY2018Q1	us-gaap	Profit Loss ProfitLoss	1806000
CY2018Q2	us-gaap	Profit Loss ProfitLoss	12782000
CY2018Q3	us-gaap	Profit Loss ProfitLoss	8497000
CY2018Q4	us-gaap	Profit Loss ProfitLoss	16336000
CY2018Q1	msbi	Preferred Stock Dividends And Premium Amortization PreferredStockDividendsAndPremiumAmortization	36000
CY2018Q2	msbi	Preferred Stock Dividends And Premium Amortization PreferredStockDividendsAndPremiumAmortization	36000
CY2018Q3	msbi	Preferred Stock Dividends And Premium Amortization PreferredStockDividendsAndPremiumAmortization	35000
CY2018Q4	msbi	Preferred Stock Dividends And Premium Amortization PreferredStockDividendsAndPremiumAmortization	34000
CY2018Q1	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	1770000
CY2018Q2	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	12746000
CY2018Q3	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	8462000
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.53
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.35
CY2018Q4	msbi	Earnings Loss Before Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic EarningsLossBeforeDistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	16302000
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.08
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.68
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.08
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.52
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.35
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.67

Files In Submission

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0001558370-20-001800-index-headers.html	Edgar Link	pending
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$MSBI
Midland States Bancorp Inc Stock $msbi

2019 Form 10-K Financial Statement

#000155837020001800 Filed on February 28, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MSBI Midland States Bancorp Inc Stock $msbi

2019 Form 10-K Financial Statement

#000155837020001800 Filed on February 28, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MSBI
Midland States Bancorp Inc Stock $msbi