$BUSE
First Busey Corp Stock $buse

$buse Overview Financials Valuation SEC Filings Company Website

2024 Q2 Form 10-Q Financial Statement

#000031448924000157 Filed on May 07, 2024

Income Statement

Concept	2024 Q2	2024 Q1	2023 Q1
Revenue	$131.8M	$125.7M	$111.1M
YoY Change	12.78%	13.17%	46.02%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development	$7.100M	$6.550M	$5.640M
YoY Change	20.3%	16.13%	13.3%
% of Gross Profit
Depreciation & Amortization	$5.283M	$2.378M	$2.371M
YoY Change	-7.56%	0.3%	-13.97%
% of Gross Profit
Operating Expenses	$7.100M	$6.550M	$5.640M
YoY Change	20.3%	16.13%	13.3%
Operating Profit
YoY Change
Interest Expense	$49.41M	$49.97M	$25.25M
YoY Change	29.24%	97.9%	318.36%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$38.42M	$34.96M	$46.35M
YoY Change	4.26%	-24.57%	29.81%
Income Tax	$11.06M	$8.735M	$9.563M
% Of Pretax Income	28.8%	24.99%	20.63%
Net Earnings	$27.36M	$26.23M	$36.79M
YoY Change	-6.83%	-28.71%	29.35%
Net Earnings / Revenue	20.75%	20.86%	33.11%
Basic Earnings Per Share	$0.48	$0.47	$0.66
Diluted Earnings Per Share	$0.47	$0.46	$0.65
COMMON SHARES
Basic Shares Outstanding	56.73M shares	55.25M shares	55.29M shares
Diluted Shares Outstanding	57.85M shares	56.41M shares	56.18M shares

Balance Sheet

Concept	2024 Q2	2024 Q1	2023 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$285.3M	$591.1M	$275.6M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$132.8M	$132.1M	$126.5M
YoY Change	8.25%	4.41%	-5.34%
Goodwill	$333.3M	$317.9M	$317.9M
YoY Change	4.85%	0.0%	0.0%
Intangibles	$37.30M	$33.58M	$43.69M
YoY Change	-9.08%	-23.14%	-20.61%
Long-Term Investments	$137.4M	$120.9M	$127.1M
YoY Change		-4.87%
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$11.97B	$11.89B	$12.34B
YoY Change	-1.95%	-3.7%	-1.77%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$11.47M	$10.90M	$12.52M
YoY Change	-4.89%	-12.94%	38.03%
Deferred Revenue
YoY Change
Short-Term Debt	$140.3M	$147.2M	$615.9M
YoY Change	-33.83%	-76.1%	3382.9%
Long-Term Debt Due			$12.00M
YoY Change
Total Short-Term Liabilities	$151.8M	$158.1M	$839.4M
YoY Change	-64.46%	-81.17%	9157.45%
LONG-TERM LIABILITIES
Long-Term Debt	$301.9M	$295.1M	$321.1M
YoY Change	-5.16%	-8.08%	-3.74%
Other Long-Term Liabilities	$207.8M	$191.4M	$184.4M
YoY Change	4.43%	3.82%	33.8%
Total Long-Term Liabilities	$509.7M	$486.5M	$505.5M
YoY Change	-1.47%	-3.74%	7.24%
TOTAL LIABILITIES
Total Short-Term Liabilities	$151.8M	$158.1M	$839.4M
Total Long-Term Liabilities	$509.7M	$486.5M	$505.5M
Total Liabilities	$10.64B	$10.60B	$11.15B
YoY Change	-3.36%	-4.86%	-1.79%
SHAREHOLDERS EQUITY
Retained Earnings	$261.8M	$248.4M	$191.9M
YoY Change	26.08%	29.43%	77.89%
Common Stock	$60.00K	$58.00K	$58.00K
YoY Change	3.45%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$68.17M	$68.63M	$70.05M
YoY Change	-2.64%	-2.03%	-1.37%
Treasury Stock Shares			2.823M shares
Shareholders Equity	$1.334B	$1.283B	$1.199B
YoY Change
Total Liabilities & Shareholders Equity	$11.97B	$11.89B	$12.34B
YoY Change	-1.95%	-3.7%	-1.77%

Cashflow Statement

Concept	2024 Q2	2024 Q1	2023 Q1
OPERATING ACTIVITIES
Net Income	$27.36M	$26.23M	$36.79M
YoY Change	-6.83%	-28.71%	29.35%
Depreciation, Depletion And Amortization	$5.283M	$2.378M	$2.371M
YoY Change	-7.56%	0.3%	-13.97%
Cash From Operating Activities	$28.48M	$37.35M	$45.30M
YoY Change	-28.55%	-17.54%	6.57%
INVESTING ACTIVITIES
Capital Expenditures	$2.151M	$1.365M	$2.380M
YoY Change	0.37%	-42.65%	224.25%
Acquisitions
YoY Change
Other Investing Activities	$104.1M	$250.3M	$46.42M
YoY Change	20.6%	439.32%	-124.92%
Cash From Investing Activities	$102.0M	$249.0M	$44.04M
YoY Change	21.11%	465.37%	-123.55%
FINANCING ACTIVITIES
Cash Dividend Paid		$13.26M	$13.27M
YoY Change		-0.07%	4.15%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-436.2M	-$414.8M	-$40.93M
YoY Change	161.36%	913.59%	-80.73%
NET CHANGE
Cash From Operating Activities	28.48M	$37.35M	$45.30M
Cash From Investing Activities	102.0M	$249.0M	$44.04M
Cash From Financing Activities	-436.2M	-$414.8M	-$40.93M
Net Change In Cash	-305.8M	-$128.5M	$48.41M
YoY Change	613.39%	-365.49%	-113.56%
FREE CASH FLOW
Cash From Operating Activities	$28.48M	$37.35M	$45.30M
Capital Expenditures	$2.151M	$1.365M	$2.380M
Free Cash Flow	$26.32M	$35.99M	$42.92M
YoY Change	-30.19%	-16.15%	2.74%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	http://www.busey.com/20240331#AccountingStandardsUpdate202302Member
CY2023Q4	us-gaap	Derivative Asset Statement Of Financial Position Extensible Enumeration DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssets
CY2024Q1	us-gaap	Derivative Asset Statement Of Financial Position Extensible Enumeration DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssets
CY2023Q4	us-gaap	Derivative Liability Statement Of Financial Position Extensible Enumeration DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherLiabilities
CY2024Q1	us-gaap	Derivative Liability Statement Of Financial Position Extensible Enumeration DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherLiabilities
CY2024Q1	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	19597000	usd
CY2023Q1	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	19599000	usd
CY2024Q1	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	340000	usd
CY2023Q1	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	743000	usd
CY2024Q1	us-gaap	Interest Income Other InterestIncomeOther	6471000	usd
CY2023Q1	us-gaap	Interest Income Other InterestIncomeOther	988000	usd
CY2024Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	125733000	usd
CY2023Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	111105000	usd
CY2024Q1	us-gaap	Interest Expense Deposits InterestExpenseDeposits	43968000	usd
CY2023Q1	us-gaap	Interest Expense Deposits InterestExpenseDeposits	14740000	usd
CY2024Q1	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	1372000	usd
CY2023Q1	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	1222000	usd
CY2024Q1	us-gaap	Interest Expense Short Term Borrowings Excluding Federal Funds And Securities Sold Under Agreements To Repurchase InterestExpenseShortTermBorrowingsExcludingFederalFundsAndSecuritiesSoldUnderAgreementsToRepurchase	232000	usd
CY2023Q1	us-gaap	Interest Expense Short Term Borrowings Excluding Federal Funds And Securities Sold Under Agreements To Repurchase InterestExpenseShortTermBorrowingsExcludingFederalFundsAndSecuritiesSoldUnderAgreementsToRepurchase	4822000	usd
CY2024Q1	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	296000	usd
CY2023Q1	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	454000	usd
CY2024Q1	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	3109000	usd
CY2023Q1	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	3097000	usd
CY2024Q1	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	989000	usd
CY2023Q1	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	913000	usd
CY2024Q1	us-gaap	Interest Expense InterestExpense	49966000	usd
CY2023Q1	us-gaap	Interest Expense InterestExpense	25248000	usd
CY2024Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	75767000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	85857000	usd
CY2024Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	5038000	usd
CY2023Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	953000	usd
CY2024Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	70729000	usd
CY2023Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	84904000	usd
CY2024Q1	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	746000	usd
CY2023Q1	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	288000	usd
CY2024Q1	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1419000	usd
CY2023Q1	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1652000	usd
CY2024Q1	buse	Gain Loss On Sales Of Mortgage Servicing Rights Msr GainLossOnSalesOfMortgageServicingRightsMSR	7465000	usd
CY2023Q1	buse	Gain Loss On Sales Of Mortgage Servicing Rights Msr GainLossOnSalesOfMortgageServicingRightsMSR	0	usd
CY2024Q1	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	-6802000	usd
CY2023Q1	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	4000	usd
CY2024Q1	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	427000	usd
CY2023Q1	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-620000	usd
CY2024Q1	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	3431000	usd
CY2023Q1	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	3593000	usd
CY2024Q1	us-gaap	Revenue Not From Contract With Customer Excluding Interest Income RevenueNotFromContractWithCustomerExcludingInterestIncome	35000000	usd
CY2023Q1	us-gaap	Revenue Not From Contract With Customer Excluding Interest Income RevenueNotFromContractWithCustomerExcludingInterestIncome	31848000	usd
CY2024Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	42090000	usd
CY2023Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	40331000	usd
CY2024Q1	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	6550000	usd
CY2023Q1	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	5640000	usd
CY2024Q1	us-gaap	Occupancy Net OccupancyNet	4720000	usd
CY2023Q1	us-gaap	Occupancy Net OccupancyNet	4762000	usd
CY2024Q1	us-gaap	Equipment Expense EquipmentExpense	1813000	usd
CY2023Q1	us-gaap	Equipment Expense EquipmentExpense	1746000	usd
CY2024Q1	us-gaap	Professional Fees ProfessionalFees	2253000	usd
CY2023Q1	us-gaap	Professional Fees ProfessionalFees	2058000	usd
CY2024Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2409000	usd
CY2023Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2729000	usd
CY2024Q1	buse	Interchange Expense InterchangeExpense	1611000	usd
CY2023Q1	buse	Interchange Expense InterchangeExpense	1853000	usd
CY2024Q1	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1400000	usd
CY2023Q1	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1502000	usd
CY2024Q1	us-gaap	Other Noninterest Expense OtherNoninterestExpense	7923000	usd
CY2023Q1	us-gaap	Other Noninterest Expense OtherNoninterestExpense	9782000	usd
CY2024Q1	us-gaap	Noninterest Expense NoninterestExpense	70769000	usd
CY2023Q1	us-gaap	Noninterest Expense NoninterestExpense	70403000	usd
CY2024Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	34960000	usd
CY2023Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	46349000	usd
CY2024Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8735000	usd
CY2023Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9563000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	26225000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	36786000	usd
CY2024Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.47
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.66
CY2024Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.46
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2024Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.24
CY2023Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.24
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	26225000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	36786000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-5681000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	21944000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-4863000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	3000	usd
CY2024Q1	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss After Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossAfterTax	-1009000	usd
CY2023Q1	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss After Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossAfterTax	-1210000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	191000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	23151000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-5232000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	3050000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-1654000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-1293000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-3578000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	4343000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3387000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	27494000	usd
CY2024Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	22838000	usd
CY2023Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	64280000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	1271981000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	26225000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3387000	usd
CY2024Q1	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	475000	usd
CY2024Q1	buse	Stock Issued During Period Value Equity Instruments Other Than Options Vested And Related Tax Benefit StockIssuedDuringPeriodValueEquityInstrumentsOtherThanOptionsVestedAndRelatedTaxBenefit	-396000	usd
CY2024Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.24
CY2024Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	13259000	usd
CY2024Q1	buse	Common Stock Dividends Restricted Stock Declared CommonStockDividendsRestrictedStockDeclared	0	usd
CY2024Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	-2403000	usd
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	1282651000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1145977000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	36786000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	27494000	usd
CY2023Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	534000	usd
CY2023Q1	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	525000	usd
CY2023Q1	buse	Stock Issued During Period Value Equity Instruments Other Than Options Vested And Related Tax Benefit StockIssuedDuringPeriodValueEquityInstrumentsOtherThanOptionsVestedAndRelatedTaxBenefit	-100000	usd
CY2023Q1	buse	Stock Issued During Period Warrants Exercised Net Of Shares Redeemed And Tax Value StockIssuedDuringPeriodWarrantsExercisedNetOfSharesRedeemedAndTaxValue	9000	usd
CY2023Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.24
CY2023Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	13268000	usd
CY2023Q1	buse	Common Stock Dividends Restricted Stock Declared CommonStockDividendsRestrictedStockDeclared	0	usd
CY2023Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	-1669000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	1198558000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	26225000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	36786000	usd
CY2024Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	5038000	usd
CY2023Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	953000	usd
CY2024Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2409000	usd
CY2023Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2729000	usd
CY2024Q1	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	468000	usd
CY2023Q1	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	749000	usd
CY2024Q1	us-gaap	Investment Tax Credit InvestmentTaxCredit	0	usd
CY2023Q1	us-gaap	Investment Tax Credit InvestmentTaxCredit	2221000	usd
CY2024Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2378000	usd
CY2023Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2371000	usd
CY2024Q1	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	-1629000	usd
CY2023Q1	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	-1803000	usd
CY2024Q1	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-2535000	usd
CY2023Q1	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-4231000	usd
CY2024Q1	buse	Accretion Of Premiums And Discounts On Time Deposits AccretionOfPremiumsAndDiscountsOnTimeDeposits	20000	usd
CY2023Q1	buse	Accretion Of Premiums And Discounts On Time Deposits AccretionOfPremiumsAndDiscountsOnTimeDeposits	80000	usd
CY2024Q1	buse	Amortization Of Discount On Federal Home Loan Bank Advances AmortizationOfDiscountOnFederalHomeLoanBankAdvances	265000	usd
CY2023Q1	buse	Amortization Of Discount On Federal Home Loan Bank Advances AmortizationOfDiscountOnFederalHomeLoanBankAdvances	252000	usd
CY2024Q1	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	usd
CY2023Q1	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	113000	usd
CY2024Q1	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	48000	usd
CY2023Q1	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	usd
CY2024Q1	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	1000	usd
CY2023Q1	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	1000	usd
CY2024Q1	us-gaap	Increase Decrease In Equity Securities Fv Ni IncreaseDecreaseInEquitySecuritiesFvNi	427000	usd
CY2023Q1	us-gaap	Increase Decrease In Equity Securities Fv Ni IncreaseDecreaseInEquitySecuritiesFvNi	-620000	usd
CY2024Q1	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-6802000	usd
CY2023Q1	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	4000	usd
CY2024Q1	buse	Gain Loss On Sales Of Mortgage Servicing Rights Msr GainLossOnSalesOfMortgageServicingRightsMSR	7465000	usd
CY2023Q1	buse	Gain Loss On Sales Of Mortgage Servicing Rights Msr GainLossOnSalesOfMortgageServicingRightsMSR	0	usd
CY2024Q1	buse	Gain Loss On Sale Of Loans Net GainLossOnSaleOfLoansNet	269000	usd
CY2023Q1	buse	Gain Loss On Sale Of Loans Net GainLossOnSaleOfLoansNet	159000	usd
CY2024Q1	buse	Gains Losses On Sales Of Other Real Estate Excluding Allowance GainsLossesOnSalesOfOtherRealEstateExcludingAllowance	540000	usd
CY2023Q1	buse	Gains Losses On Sales Of Other Real Estate Excluding Allowance GainsLossesOnSalesOfOtherRealEstateExcludingAllowance	0	usd
CY2024Q1	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	10000	usd
CY2023Q1	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	266000	usd
CY2024Q1	buse	Gain Loss On Life Insurance Proceeds GainLossOnLifeInsuranceProceeds	394000	usd
CY2023Q1	buse	Gain Loss On Life Insurance Proceeds GainLossOnLifeInsuranceProceeds	707000	usd
CY2024Q1	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	1025000	usd
CY2023Q1	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	945000	usd
CY2024Q1	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	0	usd
CY2023Q1	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	1617000	usd
CY2024Q1	us-gaap	Share Based Compensation ShareBasedCompensation	2403000	usd
CY2023Q1	us-gaap	Share Based Compensation ShareBasedCompensation	1669000	usd
CY2024Q1	buse	Proceeds From Sale Of Mortgage Servicing Rights Msr Operating Activities ProceedsFromSaleOfMortgageServicingRightsMSROperatingActivities	9796000	usd
CY2023Q1	buse	Proceeds From Sale Of Mortgage Servicing Rights Msr Operating Activities ProceedsFromSaleOfMortgageServicingRightsMSROperatingActivities	0	usd
CY2024Q1	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	19296000	usd
CY2023Q1	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	9524000	usd
CY2024Q1	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	15241000	usd
CY2023Q1	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	8219000	usd
CY2024Q1	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-1613000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2119000	usd
CY2024Q1	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-10055000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-2000000	usd
CY2024Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	37350000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	45296000	usd
CY2024Q1	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	177000	usd
CY2023Q1	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	14000	usd
CY2024Q1	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	780000	usd
CY2023Q1	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	2449000	usd
CY2024Q1	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	626000	usd
CY2023Q1	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	14000	usd
CY2024Q1	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	101360000	usd
CY2023Q1	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	usd
CY2024Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	11154000	usd
CY2023Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	11708000	usd
CY2024Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	79104000	usd
CY2023Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	107492000	usd
CY2024Q1	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	0	usd
CY2023Q1	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	17891000	usd
CY2024Q1	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	0	usd
CY2023Q1	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	6086000	usd
CY2024Q1	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	-56113000	usd
CY2023Q1	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	60807000	usd
CY2024Q1	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	70000	usd
CY2023Q1	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	76000	usd
CY2024Q1	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	2359000	usd
CY2023Q1	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	2026000	usd
CY2024Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1365000	usd
CY2023Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2380000	usd
CY2024Q1	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	37000	usd
CY2023Q1	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	284000	usd
CY2024Q1	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	600000	usd
CY2023Q1	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	42000	usd
CY2024Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	248961000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	44035000	usd
CY2024Q1	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-330945000	usd
CY2023Q1	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-270031000	usd
CY2024Q1	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-40221000	usd
CY2023Q1	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-18829000	usd
CY2024Q1	buse	Proceeds From Repayments Of Short Term Debt Excluding Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net ProceedsFromRepaymentsOfShortTermDebtExcludingFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	0	usd
CY2023Q1	buse	Proceeds From Repayments Of Short Term Debt Excluding Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net ProceedsFromRepaymentsOfShortTermDebtExcludingFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	265000000	usd
CY2024Q1	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	30000000	usd
CY2023Q1	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	3173000	usd
CY2024Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	13259000	usd
CY2023Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	13268000	usd
CY2024Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	usd
CY2023Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	534000	usd
CY2024Q1	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	396000	usd
CY2023Q1	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	100000	usd
CY2024Q1	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	0	usd
CY2023Q1	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	9000	usd
CY2024Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-414821000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-40926000	usd
CY2024Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-128510000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	48405000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	719581000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	227164000	usd
CY2024Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	591071000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	275569000	usd
CY2024Q1	us-gaap	Interest Paid Net InterestPaidNet	51676000	usd
CY2023Q1	us-gaap	Interest Paid Net InterestPaidNet	19961000	usd
CY2024Q1	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0	usd
CY2023Q1	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	64000	usd
CY2024Q1	us-gaap	Assets Assets	11900000000	usd
CY2024Q1	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2024Q1	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2024Q1	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:10pt;margin-top:10pt;text-align:justify"><span id="i4f34d3345bd14c92b0e33b5a7a862b23"></span><span style="color:#000000;font-family:'Verdana',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-bottom:10pt;margin-top:10pt;text-align:justify"><span style="color:#000000;font-family:'Verdana',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In preparing the accompanying unaudited consolidated financial statements in conformity with GAAP, Busey’s management is required to make estimates and assumptions that affect the amounts reported in the financial statements and the disclosures provided. Actual results could differ from those estimates. Material estimates which are particularly susceptible to significant change in the near term relate to the fair value of debt securities available for sale, fair value of assets acquired and liabilities assumed in business combinations, goodwill, income taxes, and the determination of the ACL.</span></div>
CY2024Q1	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year5 Through10 DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYear5Through10	241243000	usd
CY2024Q1	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	198562000	usd
CY2024Q1	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year10 DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYear10	252802000	usd
CY2024Q1	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	209136000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	2146276000	usd
CY2024Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	108000	usd
CY2024Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	248312000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1898072000	usd
CY2024Q1	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	862218000	usd
CY2024Q1	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2024Q1	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	149187000	usd
CY2024Q1	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	713031000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	2334630000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	186000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	247245000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	2087571000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	872628000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	142231000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	730397000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis	262012000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Fair Value AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	222566000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis	752610000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	666718000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis	529926000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	469029000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis	601728000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue	539759000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	2146276000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1898072000	usd
CY2024Q1	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date Year One DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne	104797000	usd
CY2024Q1	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	88589000	usd
CY2024Q1	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year One Through Five DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughFive	263376000	usd
CY2024Q1	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	216744000	usd
CY2024Q1	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	862218000	usd
CY2024Q1	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	713031000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	1000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	10000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	6803000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	6000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-6802000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	4000	usd
CY2024Q1	us-gaap	Availableforsale Securities Sold At Par AvailableforsaleSecuritiesSoldAtPar	108200000	usd
CY2024Q1	buse	Debt Securities Available For Sale Realized Loss Before Tax DebtSecuritiesAvailableForSaleRealizedLossBeforeTax	6800000	usd
CY2024Q1	buse	Realized Gain On Sale Of Mortgage Servicing Rights Before Tax RealizedGainOnSaleOfMortgageServicingRightsBeforeTax	7500000	usd
CY2024Q1	buse	Mortgage Servicing Rights Sold MortgageServicingRightsSold	923500000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	13002000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	171000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	1661232000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	248141000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1674234000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	248312000	usd
CY2024Q1	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	713031000	usd
CY2024Q1	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	149187000	usd
CY2024Q1	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	713031000	usd
CY2024Q1	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	149187000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	13033000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	65000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	2049784000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	247180000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	2062817000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	247245000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	730397000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	142231000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	730397000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	142231000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1674234000	usd
CY2024Q1	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	713031000	usd
CY2024Q1	buse	Debt Securities Fair Value DebtSecuritiesFairValue	2387265000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	248312000	usd
CY2024Q1	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	149187000	usd
CY2024Q1	buse	Debt Securities Accumulated Gross Unrealized Loss Before Tax DebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	397499000	usd
CY2024Q1	buse	Available For Sale Securities In Unrealized Loss Positions As Percentage Of Aggregate Carrying Value AvailableForSaleSecuritiesInUnrealizedLossPositionsAsPercentageOfAggregateCarryingValue	0.148
CY2024Q1	buse	Held For Maturity Securities In Unrealized Loss Positions As Percentage Of Aggregate Carrying Value HeldForMaturitySecuritiesInUnrealizedLossPositionsAsPercentageOfAggregateCarryingValue	0.209
CY2024Q1	buse	Securities In Unrealized Loss Positions As Percentage Of Aggregate Carrying Value SecuritiesInUnrealizedLossPositionsAsPercentageOfAggregateCarryingValue	0.167
CY2024Q1	buse	Total Count Of Debt Securities Available For Sale Securities TotalCountOfDebtSecuritiesAvailableForSaleSecurities	708	security
CY2024Q1	buse	Total Count Of Debt Securities Held To Maturity TotalCountOfDebtSecuritiesHeldToMaturity	55	security
CY2024Q1	buse	Total Count Of Debt Securities TotalCountOfDebtSecurities	763	security
CY2024Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	654	security
CY2024Q1	buse	Debt Securities Held To Maturity Unrealized Loss Position Number Of Positions DebtSecuritiesHeldToMaturityUnrealizedLossPositionNumberOfPositions	55	security
CY2024Q1	buse	Debt Securities Unrealized Loss Position Number Of Positions DebtSecuritiesUnrealizedLossPositionNumberOfPositions	709	security
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	2062817000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	730397000	usd
CY2023Q4	buse	Debt Securities Fair Value DebtSecuritiesFairValue	2793214000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	247245000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	142231000	usd
CY2023Q4	buse	Debt Securities Accumulated Gross Unrealized Loss Before Tax DebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	389476000	usd
CY2023Q4	buse	Available For Sale Securities In Unrealized Loss Positions As Percentage Of Aggregate Carrying Value AvailableForSaleSecuritiesInUnrealizedLossPositionsAsPercentageOfAggregateCarryingValue	0.120
CY2023Q4	buse	Held For Maturity Securities In Unrealized Loss Positions As Percentage Of Aggregate Carrying Value HeldForMaturitySecuritiesInUnrealizedLossPositionsAsPercentageOfAggregateCarryingValue	0.195
CY2023Q4	buse	Securities In Unrealized Loss Positions As Percentage Of Aggregate Carrying Value SecuritiesInUnrealizedLossPositionsAsPercentageOfAggregateCarryingValue	0.139
CY2023Q4	buse	Total Count Of Debt Securities Available For Sale Securities TotalCountOfDebtSecuritiesAvailableForSaleSecurities	835	security
CY2023Q4	buse	Total Count Of Debt Securities Held To Maturity TotalCountOfDebtSecuritiesHeldToMaturity	55	security
CY2023Q4	buse	Total Count Of Debt Securities TotalCountOfDebtSecurities	890	security
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	779	security
CY2023Q4	buse	Debt Securities Held To Maturity Unrealized Loss Position Number Of Positions DebtSecuritiesHeldToMaturityUnrealizedLossPositionNumberOfPositions	55	security
CY2023Q4	buse	Debt Securities Unrealized Loss Position Number Of Positions DebtSecuritiesUnrealizedLossPositionNumberOfPositions	834	security
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7588077000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7651034000	usd
CY2024Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	91562000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	91740000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	7496515000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	7559294000	usd
CY2024Q1	us-gaap	Financing Receivable Unamortized Loan Fee Cost FinancingReceivableUnamortizedLoanFeeCost	13400000	usd
CY2023Q4	us-gaap	Financing Receivable Unamortized Loan Fee Cost FinancingReceivableUnamortizedLoanFeeCost	13500000	usd
CY2024Q1	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Period Increase Decrease CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldPeriodIncreaseDecrease	-4300000	usd
CY2023	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Period Increase Decrease CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldPeriodIncreaseDecrease	-4500000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7588077000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7651034000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	324894000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	1348600000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	1727027000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	1472816000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	679982000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	1034094000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	1000664000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7588077000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff	0	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff	5133000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff	0	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff	23000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff	0	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff	304000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Writeoff FinancingReceivableExcludingAccruedInterestRevolvingWriteoff	0	usd
CY2024Q1	buse	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossWriteoff	5460000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	1520323000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	1785798000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	1552072000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	705335000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	468659000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	660624000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	958223000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7651034000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff	289000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff	76000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff	592000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff	34000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff	391000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff	3036000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Writeoff FinancingReceivableExcludingAccruedInterestRevolvingWriteoff	0	usd
CY2023	buse	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossWriteoff	4418000	usd
CY2024Q1	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	88000	usd
CY2024Q1	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	17465000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	375000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	7441000	usd
CY2024Q1	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	300000	usd
CY2023Q1	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	400000	usd
CY2023Q1	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	0	usd
CY2024Q1	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	0	usd
CY2024Q1	us-gaap	Financing Receivable Modified Weighted Average Term Increase From Modification FinancingReceivableModifiedWeightedAverageTermIncreaseFromModification	P17M18D
CY2023Q1	us-gaap	Financing Receivable Modified Weighted Average Term Increase From Modification FinancingReceivableModifiedWeightedAverageTermIncreaseFromModification	P8M
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual FinancingReceivableExcludingAccruedInterestNonaccrual	10000000	usd
CY2024Q1	buse	Collateral Dependent Loans CollateralDependentLoans	14200000	usd
CY2023	buse	Collateral Dependent Loans CollateralDependentLoans	6100000	usd
CY2024Q1	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	900000	usd
CY2024Q1	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	20585000	usd
CY2024Q1	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	2258000	usd
CY2024Q1	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	10945000	usd
CY2024Q1	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	13203000	usd
CY2024Q1	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	7523000	usd
CY2024Q1	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	9460000	usd
CY2023Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	10096000	usd
CY2023Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	1256000	usd
CY2023Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	1895000	usd
CY2023Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	3151000	usd
CY2023Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	895000	usd
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	9948000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	91740000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	5038000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	5460000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	244000	usd
CY2024Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	91562000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	91608000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	953000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	1181000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	347000	usd
CY2023Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	91727000	usd
CY2024Q1	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	7574874000	usd
CY2024Q1	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	13203000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7588077000	usd
CY2024Q1	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	84039000	usd
CY2024Q1	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	7523000	usd
CY2024Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	91562000	usd
CY2023Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	7647883000	usd
CY2023Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	3151000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7651034000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	90845000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	895000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	91740000	usd
CY2024Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	10590000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	11027000	usd
CY2024Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	10896000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	11308000	usd
CY2024Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y3M3D
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y4M20D
CY2024Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0361
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0359
CY2024Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	535000	usd
CY2023Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	628000	usd
CY2024Q1	us-gaap	Variable Lease Cost VariableLeaseCost	14000	usd
CY2023Q1	us-gaap	Variable Lease Cost VariableLeaseCost	5000	usd
CY2024Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	13000	usd
CY2023Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	6000	usd
CY2024Q1	us-gaap	Lease Cost LeaseCost	562000	usd
CY2023Q1	us-gaap	Lease Cost LeaseCost	639000	usd
CY2024Q1	buse	Operating Lease Payments Fixed Payment OperatingLeasePaymentsFixedPayment	507000	usd
CY2023Q1	buse	Operating Lease Payments Fixed Payment OperatingLeasePaymentsFixedPayment	570000	usd
CY2024Q1	buse	Operating Lease Payments Liability Reduction OperatingLeasePaymentsLiabilityReduction	411000	usd
CY2023Q1	buse	Operating Lease Payments Liability Reduction OperatingLeasePaymentsLiabilityReduction	479000	usd
CY2024Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	usd
CY2023Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	4000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	1515000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	1768000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1443000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1277000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1255000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1278000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	4200000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	12736000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1840000	usd
CY2024Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	10896000	usd
CY2024Q1	us-gaap	Lease Income LeaseIncome	202000	usd
CY2023Q1	us-gaap	Lease Income LeaseIncome	191000	usd
CY2024Q1	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	2784338000	usd
CY2023Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	2834655000	usd
CY2024Q1	buse	Interest Bearing Transaction Deposits InterestBearingTransactionDeposits	2397937000	usd
CY2023Q4	buse	Interest Bearing Transaction Deposits InterestBearingTransactionDeposits	2717139000	usd
CY2024Q1	buse	Deposits Interest Bearing Transaction Deposits Saving Deposits And Money Market Deposits DepositsInterestBearingTransactionDepositsSavingDepositsAndMoneyMarketDeposits	3200738000	usd
CY2023Q4	buse	Deposits Interest Bearing Transaction Deposits Saving Deposits And Money Market Deposits DepositsInterestBearingTransactionDepositsSavingDepositsAndMoneyMarketDeposits	2920088000	usd
CY2024Q1	us-gaap	Time Deposits TimeDeposits	1577178000	usd
CY2023Q4	us-gaap	Time Deposits TimeDeposits	1819274000	usd
CY2024Q1	us-gaap	Deposits Deposits	9960191000	usd
CY2023Q4	us-gaap	Deposits Deposits	10291156000	usd
CY2024Q1	buse	Brokered Saving Deposits And Money Market Deposits BrokeredSavingDepositsAndMoneyMarketDeposits	6001000	usd
CY2023Q4	buse	Brokered Saving Deposits And Money Market Deposits BrokeredSavingDepositsAndMoneyMarketDeposits	6001000	usd
CY2024Q1	buse	Brokered Time Deposits BrokeredTimeDeposits	0	usd
CY2023Q4	buse	Brokered Time Deposits BrokeredTimeDeposits	285000	usd
CY2024Q1	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	898433000	usd
CY2023Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	1072189000	usd
CY2024Q1	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	326794000	usd
CY2023Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	386286000	usd
CY2024Q1	us-gaap	Time Deposit Maturities Remainder Of Fiscal Year TimeDepositMaturitiesRemainderOfFiscalYear	1371431000	usd
CY2024Q1	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	156304000	usd
CY2024Q1	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	22905000	usd
CY2024Q1	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	13209000	usd
CY2024Q1	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	10150000	usd
CY2024Q1	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	2743000	usd
CY2024Q1	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	436000	usd
CY2024Q1	us-gaap	Time Deposits TimeDeposits	1577178000	usd
CY2024Q1	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	147175000	usd
CY2023Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	187396000	usd
CY2024Q1	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0296
CY2023Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0326
CY2024Q1	us-gaap	Short Term Borrowings ShortTermBorrowings	0	usd
CY2023Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	12000000	usd
CY2023Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	0	usd
CY2024Q1	us-gaap	Federal Funds Purchased FederalFundsPurchased	0	usd
CY2024Q1	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	0	usd
CY2023Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	18000000	usd
CY2024Q1	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	1900000	usd
CY2023Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	2118000	usd
CY2024Q1	buse	Common Equity Tier One Risk Based Capital CommonEquityTierOneRiskBasedCapital	1166919000	usd
CY2024Q1	buse	Common Equity Tier One Risk Based Capital To Risk Weighted Assets CommonEquityTierOneRiskBasedCapitalToRiskWeightedAssets	0.1345
CY2024Q1	buse	Common Equity Tier One Risk Based Capital Required For Capital Adequacy CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacy	390433000	usd
CY2024Q1	buse	Common Equity Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0450
CY2024Q1	buse	Common Equity Tier One Risk Based Capital Required To Be Well Capitalized CommonEquityTierOneRiskBasedCapitalRequiredToBeWellCapitalized	563958000	usd
CY2024Q1	buse	Common Equity Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets CommonEquityTierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.0650
CY2024Q1	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1240919000	usd
CY2024Q1	buse	Tier One Risk Based Capital To Risk Weighted Assets Percent TierOneRiskBasedCapitalToRiskWeightedAssetsPercent	0.1430
CY2024Q1	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	520577000	usd
CY2024Q1	buse	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Percent TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssetsPercent	0.0600
CY2024Q1	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	694103000	usd
CY2024Q1	buse	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Percent TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssetsPercent	0.0800
CY2024Q1	us-gaap	Capital Capital	1557137000	usd
CY2024Q1	buse	Capital To Risk Weighted Assets Percent CapitalToRiskWeightedAssetsPercent	0.1795
CY2024Q1	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	694103000	usd
CY2024Q1	buse	Capital Required For Capital Adequacy To Risk Weighted Assets Percent CapitalRequiredForCapitalAdequacyToRiskWeightedAssetsPercent	0.0800
CY2024Q1	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	867628000	usd
CY2024Q1	buse	Capital Required To Be Well Capitalized To Risk Weighted Assets Percent CapitalRequiredToBeWellCapitalizedToRiskWeightedAssetsPercent	0.1000
CY2024Q1	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1240919000	usd
CY2024Q1	buse	Tier One Leverage Capital To Average Assets Percent TierOneLeverageCapitalToAverageAssetsPercent	0.1046
CY2024Q1	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	474678000	usd
CY2024Q1	buse	Tier One Leverage Capital Required For Capital Adequacy To Average Assets Percent TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssetsPercent	0.0400
CY2023Q4	buse	Common Equity Tier One Risk Based Capital CommonEquityTierOneRiskBasedCapital	1155973000	usd
CY2023Q4	buse	Common Equity Tier One Risk Based Capital To Risk Weighted Assets CommonEquityTierOneRiskBasedCapitalToRiskWeightedAssets	0.1309
CY2023Q4	buse	Common Equity Tier One Risk Based Capital Required For Capital Adequacy CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacy	397331000	usd
CY2023Q4	buse	Common Equity Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0450
CY2023Q4	buse	Common Equity Tier One Risk Based Capital Required To Be Well Capitalized CommonEquityTierOneRiskBasedCapitalRequiredToBeWellCapitalized	573923000	usd
CY2023Q4	buse	Common Equity Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets CommonEquityTierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.0650
CY2023Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1229973000	usd
CY2023Q4	buse	Tier One Risk Based Capital To Risk Weighted Assets Percent TierOneRiskBasedCapitalToRiskWeightedAssetsPercent	0.1393
CY2023Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	529775000	usd
CY2023Q4	buse	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Percent TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssetsPercent	0.0600
CY2023Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	706367000	usd
CY2023Q4	buse	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Percent TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssetsPercent	0.0800
CY2023Q4	us-gaap	Capital Capital	1540318000	usd
CY2023Q4	buse	Capital To Risk Weighted Assets Percent CapitalToRiskWeightedAssetsPercent	0.1744
CY2023Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	706367000	usd
CY2023Q4	buse	Capital Required For Capital Adequacy To Risk Weighted Assets Percent CapitalRequiredForCapitalAdequacyToRiskWeightedAssetsPercent	0.0800
CY2023Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	882958000	usd
CY2023Q4	buse	Capital Required To Be Well Capitalized To Risk Weighted Assets Percent CapitalRequiredToBeWellCapitalizedToRiskWeightedAssetsPercent	0.1000
CY2023Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1229973000	usd
CY2023Q4	buse	Tier One Leverage Capital To Average Assets Percent TierOneLeverageCapitalToAverageAssetsPercent	0.1008
CY2023Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	488315000	usd
CY2023Q4	buse	Tier One Leverage Capital Required For Capital Adequacy To Average Assets Percent TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssetsPercent	0.0400
CY2024Q1	us-gaap	Equity Method Investments EquityMethodInvestments	120878000	usd
CY2023Q1	us-gaap	Equity Method Investments EquityMethodInvestments	127068000	usd
CY2024Q1	buse	Tax Advantaged Projects Income Tax Credits And Other Investments TaxAdvantagedProjectsIncomeTaxCreditsAndOtherInvestments	4101000	usd
CY2024Q1	buse	Tax Advantaged Projects Amortization Of Investments In Tax Advantaged Projects TaxAdvantagedProjectsAmortizationOfInvestmentsInTaxAdvantagedProjects	3647000	usd
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	21266	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	23.53
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y10M17D
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	880	shares
CY2024Q1	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	23.53
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	20386	shares
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	23.53
CY2024Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y7M17D
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	20386	shares
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	23.53
CY2024Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P2Y7M17D
CY2024Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.46
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2024Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2403000	usd
CY2023Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1669000	usd
CY2024Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	19814000	usd
CY2023Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	10639000	usd
CY2024Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y8M12D
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y4M24D
CY2024Q1	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	2165588000	usd
CY2023Q4	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	2176496000	usd
CY2024Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	26225000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	36786000	usd
CY2024Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	55416589	shares
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	55397989	shares
CY2024Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	56406500	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	56179606	shares
CY2024Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.47
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.66
CY2024Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	129057	shares
CY2023Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	288265	shares
CY2024Q1	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2024Q1	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2024Q1	buse	Number Of Banking Centers Consolidated NumberOfBankingCentersConsolidated	58	center
CY2024Q1	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2024Q1	us-gaap	Goodwill Goodwill	317873000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	317873000	usd
CY2024Q1	us-gaap	Assets Assets	11887458000	usd
CY2023Q4	us-gaap	Assets Assets	12283415000	usd
CY2024Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	75767000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	85857000	usd
CY2024Q1	us-gaap	Revenue Not From Contract With Customer Excluding Interest Income RevenueNotFromContractWithCustomerExcludingInterestIncome	35000000	usd
CY2023Q1	us-gaap	Revenue Not From Contract With Customer Excluding Interest Income RevenueNotFromContractWithCustomerExcludingInterestIncome	31848000	usd
CY2024Q1	us-gaap	Noninterest Expense NoninterestExpense	70769000	usd
CY2023Q1	us-gaap	Noninterest Expense NoninterestExpense	70403000	usd
CY2024Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	34960000	usd
CY2023Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	46349000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	26225000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	36786000	usd
CY2024Q1	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2024Q1	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2024Q1	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2024Q1	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false

Files In Submission

Name	View Source	Status
0000314489-24-000157-index-headers.html	Edgar Link	pending
0000314489-24-000157-index.html	Edgar Link	pending
0000314489-24-000157.txt	Edgar Link	pending
0000314489-24-000157-xbrl.zip	Edgar Link	pending
buse-20240331.htm	Edgar Link	pending
buse-20240331.xsd	Edgar Link	pending
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Financial_Report.xlsx	Edgar Link	pending
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buse-20240331_cal.xml	Edgar Link	unprocessable
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report.css	Edgar Link	pending
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buse-20240331_def.xml	Edgar Link	unprocessable

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$BUSE
First Busey Corp Stock $buse

2024 Q2 Form 10-Q Financial Statement

#000031448924000157 Filed on May 07, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BUSE First Busey Corp Stock $buse

2024 Q2 Form 10-Q Financial Statement

#000031448924000157 Filed on May 07, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BUSE
First Busey Corp Stock $buse