$BKU
BankUnited, Inc. Stock $bku

$bku Overview Financials Valuation SEC Filings Company Website

2023 Q2 Form 10-Q Financial Statement

#000150400823000014 Filed on May 02, 2023

Income Statement

Concept	2023 Q2	2023 Q1	2022 Q1
Revenue	$5.349M	$5.545M	$236.0M
YoY Change	-98.0%	-97.65%	-3.86%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development	$20.44M	$21.73M	$17.00M
YoY Change	14.19%	27.77%	8.02%
% of Gross Profit
Depreciation & Amortization	$18.81M	$19.43M	$18.90M
YoY Change	-2.31%	2.8%	4.42%
% of Gross Profit
Operating Expenses	$20.44M	$21.73M	$17.00M
YoY Change	14.19%	27.77%	8.02%
Operating Profit
YoY Change
Interest Expense	$249.5M	$212.5M	$27.32M
YoY Change	500.48%	677.92%	-44.46%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$78.63M	$71.84M	$88.79M
YoY Change	-10.1%	-19.09%	-32.38%
Income Tax	$20.63M	$18.96M	$21.64M
% Of Pretax Income	26.24%	26.39%	24.37%
Net Earnings	$58.00M	$52.88M	$67.15M
YoY Change	-11.81%	-21.25%	-32.04%
Net Earnings / Revenue	1084.24%	953.69%	28.46%
Basic Earnings Per Share	$0.78	$0.71	$0.79
Diluted Earnings Per Share	$0.78	$0.70	$0.79
COMMON SHARES
Basic Shares Outstanding	74.41M shares	74.74M shares	83.77M shares
Diluted Shares Outstanding	73.42M shares	74.01M shares	83.91M shares

Balance Sheet

Concept	2023 Q2	2023 Q1	2022 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$301.2M	$904.0M	$697.5M
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	$514.7M	$526.3M	$627.0M
YoY Change	-15.03%	-16.06%	-7.93%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$35.87B	$37.19B	$36.33B
YoY Change	-1.86%	2.36%	3.28%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$199.0M
YoY Change		-100.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities			$199.0M
YoY Change
LONG-TERM LIABILITIES
Long-Term Debt	$715.3M	$720.8M	$721.0M
YoY Change	-0.81%	-0.03%	-0.14%
Other Long-Term Liabilities	$816.2M	$714.1M	$614.0M
YoY Change	-4.91%	16.31%	-4.21%
Total Long-Term Liabilities	$1.532B	$1.435B	$1.335B
YoY Change	-3.04%	7.48%	-2.05%
TOTAL LIABILITIES
Total Short-Term Liabilities			$199.0M
Total Long-Term Liabilities	$1.532B	$1.435B	$1.335B
Total Liabilities	$33.35B	$34.71B	$33.47B
YoY Change	-2.06%	3.7%	4.21%
SHAREHOLDERS EQUITY
Retained Earnings	$2.624B	$2.586B	$2.392B
YoY Change	7.62%	8.13%	14.37%
Common Stock	$744.0K	$744.0K	$841.0K
YoY Change	-4.49%	-11.53%	-9.86%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.526B	$2.481B	$2.861B
YoY Change
Total Liabilities & Shareholders Equity	$35.87B	$37.19B	$36.33B
YoY Change	-1.86%	2.36%	3.28%

Cashflow Statement

Concept	2023 Q2	2023 Q1	2022 Q1
OPERATING ACTIVITIES
Net Income	$58.00M	$52.88M	$67.15M
YoY Change	-11.81%	-21.25%	-32.04%
Depreciation, Depletion And Amortization	$18.81M	$19.43M	$18.90M
YoY Change	-2.31%	2.8%	4.42%
Cash From Operating Activities	$282.2M	$141.4M	$457.3M
YoY Change	-52.82%	-69.09%	18.35%
INVESTING ACTIVITIES
Capital Expenditures			$0.00
YoY Change			-100.0%
Acquisitions
YoY Change
Other Investing Activities	$594.3M	$9.032M	$11.96M
YoY Change	-170.08%	-24.51%	575.55%
Cash From Investing Activities	$594.3M	$96.22M	-$579.6M
YoY Change	-170.08%	-116.6%	-281.54%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$82.10M
YoY Change			1030.43%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-1.479B	$93.76M	$505.0M
YoY Change	-2336.71%	-81.43%	-1042.26%
NET CHANGE
Cash From Operating Activities	282.2M	$141.4M	$457.3M
Cash From Investing Activities	594.3M	$96.22M	-$579.6M
Cash From Financing Activities	-1.479B	$93.76M	$505.0M
Net Change In Cash	-602.8M	$331.4M	$382.6M
YoY Change	228.01%	-13.4%	-41.32%
FREE CASH FLOW
Cash From Operating Activities	$282.2M	$141.4M	$457.3M
Capital Expenditures			$0.00
Free Cash Flow			$457.3M
YoY Change			7.52%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023Q1	dei	Entity Central Index Key EntityCentralIndexKey	0001504008
CY2023Q1	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q1
CY2023Q1	dei	Amendment Flag AmendmentFlag	false
CY2023Q1	dei	Document Type DocumentType	10-Q
CY2023Q1	dei	Document Quarterly Report DocumentQuarterlyReport	true
CY2023Q1	dei	Document Transition Report DocumentTransitionReport	false
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	dei	Entity File Number EntityFileNumber	001-35039
CY2023Q1	dei	Entity Registrant Name EntityRegistrantName	BankUnited, Inc.
CY2023Q1	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2023Q1	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	27-0162450
CY2023Q1	dei	Entity Address Address Line1 EntityAddressAddressLine1	14817 Oak Lane
CY2023Q1	dei	Entity Address City Or Town EntityAddressCityOrTown	Miami Lakes
CY2023Q1	dei	Entity Address State Or Province EntityAddressStateOrProvince	FL
CY2023Q1	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	33016
CY2023Q1	dei	City Area Code CityAreaCode	305
CY2023Q1	dei	Local Phone Number LocalPhoneNumber	569-2000
CY2023Q1	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023Q1	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023Q1	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023Q1	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023Q1	dei	Entity Small Business EntitySmallBusiness	false
CY2023Q1	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	74406617	shares
CY2023Q1	us-gaap	Cash And Due From Banks CashAndDueFromBanks	15740000	usd
CY2022Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	16068000	usd
CY2023Q1	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	888258000	usd
CY2022Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	556579000	usd
CY2023Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	903998000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	572647000	usd
CY2023Q1	bku	Investmentsecuritiesrecordedatfairvalue Investmentsecuritiesrecordedatfairvalue	9523599000	usd
CY2022Q4	bku	Investmentsecuritiesrecordedatfairvalue Investmentsecuritiesrecordedatfairvalue	9745327000	usd
CY2023Q1	us-gaap	Investments Investments	9533599000	usd
CY2022Q4	us-gaap	Investments Investments	9755327000	usd
CY2023Q1	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	384697000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	294172000	usd
CY2023Q1	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	24892894000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	24885988000	usd
CY2023Q1	us-gaap	Loans And Leases Receivable Net Reported Amount Covered And Not Covered LoansAndLeasesReceivableNetReportedAmountCoveredAndNotCovered	24734102000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Net Reported Amount Covered And Not Covered LoansAndLeasesReceivableNetReportedAmountCoveredAndNotCovered	24738042000	usd
CY2023Q1	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	318305000	usd
CY2022Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	308212000	usd
CY2023Q1	bku	Operating Lease Equipment Net OperatingLeaseEquipmentNet	526311000	usd
CY2022Q4	bku	Operating Lease Equipment Net OperatingLeaseEquipmentNet	539799000	usd
CY2023Q1	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	77637000	usd
CY2022Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	77637000	usd
CY2023Q1	us-gaap	Other Assets OtherAssets	710554000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	740876000	usd
CY2023Q1	us-gaap	Assets Assets	37189203000	usd
CY2022Q4	us-gaap	Assets Assets	37026712000	usd
CY2023Q1	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	7366642000	usd
CY2022Q4	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	8037848000	usd
CY2023Q1	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	2505150000	usd
CY2022Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	2142067000	usd
CY2023Q1	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	10601129000	usd
CY2022Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	13061341000	usd
CY2023Q1	us-gaap	Time Deposits TimeDeposits	5249977000	usd
CY2022Q4	us-gaap	Time Deposits TimeDeposits	4268078000	usd
CY2023Q1	us-gaap	Deposits Deposits	25722898000	usd
CY2022Q4	us-gaap	Deposits Deposits	27509334000	usd
CY2023Q1	us-gaap	Federal Funds Purchased FederalFundsPurchased	0	usd
CY2022Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	190000000	usd
CY2023Q1	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	7550000000	usd
CY2022Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	5420000000	usd
CY2023Q1	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	720787000	usd
CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	720923000	usd
CY2023Q1	us-gaap	Other Liabilities OtherLiabilities	714124000	usd
CY2022Q4	us-gaap	Other Liabilities OtherLiabilities	750474000	usd
CY2023Q1	us-gaap	Liabilities Liabilities	34707809000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	34590731000	usd
CY2023Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2023Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2023Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	74423365	shares
CY2023Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	74423365	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	75674587	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	75674587	shares
CY2023Q1	us-gaap	Common Stock Value CommonStockValue	744000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	757000	usd
CY2023Q1	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	269353000	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	321729000	usd
CY2023Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2585981000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2551400000	usd
CY2023Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-374684000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-437905000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	2481394000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	2435981000	usd
CY2023Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	37189203000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	37026712000	usd
CY2023Q1	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	308795000	usd
CY2022Q1	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	191562000	usd
CY2023Q1	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	118758000	usd
CY2022Q1	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	43048000	usd
CY2023Q1	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	12863000	usd
CY2022Q1	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	1354000	usd
CY2023Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	440416000	usd
CY2022Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	235964000	usd
CY2023Q1	us-gaap	Interest Expense Deposits InterestExpenseDeposits	133630000	usd
CY2022Q1	us-gaap	Interest Expense Deposits InterestExpenseDeposits	11857000	usd
CY2023Q1	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	78912000	usd
CY2022Q1	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	15465000	usd
CY2023Q1	us-gaap	Interest Expense InterestExpense	212542000	usd
CY2022Q1	us-gaap	Interest Expense InterestExpense	27322000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	227874000	usd
CY2022Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	208642000	usd
CY2023Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	19788000	usd
CY2022Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	7830000	usd
CY2023Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	208086000	usd
CY2022Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	200812000	usd
CY2023Q1	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	5545000	usd
CY2022Q1	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	5960000	usd
CY2023Q1	us-gaap	Gain Loss On Investments GainLossOnInvestments	-12549000	usd
CY2022Q1	us-gaap	Gain Loss On Investments GainLossOnInvestments	-7868000	usd
CY2023Q1	us-gaap	Sublease Income SubleaseIncome	13109000	usd
CY2022Q1	us-gaap	Sublease Income SubleaseIncome	13415000	usd
CY2023Q1	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	10430000	usd
CY2022Q1	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	2794000	usd
CY2023Q1	us-gaap	Noninterest Income NoninterestIncome	16535000	usd
CY2022Q1	us-gaap	Noninterest Income NoninterestIncome	14301000	usd
CY2023Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	71051000	usd
CY2022Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	67088000	usd
CY2023Q1	us-gaap	Occupancy Net OccupancyNet	10802000	usd
CY2022Q1	us-gaap	Occupancy Net OccupancyNet	11512000	usd
CY2023Q1	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	7907000	usd
CY2022Q1	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	3403000	usd
CY2023Q1	us-gaap	Professional Fees ProfessionalFees	2918000	usd
CY2022Q1	us-gaap	Professional Fees ProfessionalFees	2262000	usd
CY2023Q1	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	21726000	usd
CY2022Q1	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	17004000	usd
CY2023Q1	us-gaap	Operating Lease Expense OperatingLeaseExpense	11521000	usd
CY2022Q1	us-gaap	Operating Lease Expense OperatingLeaseExpense	12610000	usd
CY2023Q1	us-gaap	Other Noninterest Expense OtherNoninterestExpense	26855000	usd
CY2022Q1	us-gaap	Other Noninterest Expense OtherNoninterestExpense	12445000	usd
CY2023Q1	us-gaap	Noninterest Expense NoninterestExpense	152780000	usd
CY2022Q1	us-gaap	Noninterest Expense NoninterestExpense	126324000	usd
CY2023Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	71841000	usd
CY2022Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	88789000	usd
CY2023Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18959000	usd
CY2022Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21639000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	52882000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	67150000	usd
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.71
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.79
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.79
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	52882000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	67150000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	74936000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-174980000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	556000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1978000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	74380000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-176958000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-2165000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	31179000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	8994000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-4020000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-11159000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	35199000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	63221000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-141759000	usd
CY2023Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	116103000	usd
CY2022Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-74609000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	52882000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	67150000	usd
CY2023Q1	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	-2078000	usd
CY2022Q1	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	-3382000	usd
CY2023Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	19788000	usd
CY2022Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	7830000	usd
CY2023Q1	us-gaap	Gain Loss On Investments GainLossOnInvestments	-12549000	usd
CY2022Q1	us-gaap	Gain Loss On Investments GainLossOnInvestments	-7868000	usd
CY2023Q1	us-gaap	Share Based Compensation ShareBasedCompensation	5280000	usd
CY2022Q1	us-gaap	Share Based Compensation ShareBasedCompensation	4112000	usd
CY2023Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	19430000	usd
CY2022Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	18947000	usd
CY2023Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	9391000	usd
CY2022Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	12924000	usd
CY2023Q1	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	103679000	usd
CY2022Q1	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	248843000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	53771000	usd
CY2022Q1	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-57729000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-25782000	usd
CY2022Q1	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	35269000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	141368000	usd
CY2022Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	457290000	usd
CY2023Q1	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	74185000	usd
CY2022Q1	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1698615000	usd
CY2023Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	251512000	usd
CY2022Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	559785000	usd
CY2023Q1	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	131879000	usd
CY2022Q1	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	482307000	usd
CY2023Q1	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	263500000	usd
CY2022Q1	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	106875000	usd
CY2023Q1	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	172975000	usd
CY2022Q1	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	52200000	usd
CY2023Q1	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	186792000	usd
CY2022Q1	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	862163000	usd
CY2023Q1	us-gaap	Proceeds From Loan And Lease Originations And Principal Collections1 ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections1	73367000	usd
CY2022Q1	us-gaap	Proceeds From Loan And Lease Originations And Principal Collections1 ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections1	1000544000	usd
CY2023Q1	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	9032000	usd
CY2022Q1	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	6805000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	96224000	usd
CY2022Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-579622000	usd
CY2023Q1	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-1786436000	usd
CY2022Q1	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-896827000	usd
CY2023Q1	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	190000000	usd
CY2022Q1	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	0	usd
CY2023Q1	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	2455000000	usd
CY2022Q1	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	1810000000	usd
CY2023Q1	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	325000000	usd
CY2022Q1	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	320000000	usd
CY2023Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	19346000	usd
CY2022Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	19876000	usd
CY2023Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	55022000	usd
CY2022Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	82103000	usd
CY2023Q1	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	14563000	usd
CY2022Q1	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	13773000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	93759000	usd
CY2022Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	504967000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	331351000	usd
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	382635000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	572647000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	314857000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	903998000	usd
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	697492000	usd
CY2023Q1	us-gaap	Interest Paid Net InterestPaidNet	184657000	usd
CY2022Q1	us-gaap	Interest Paid Net InterestPaidNet	17616000	usd
CY2023Q1	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8947000	usd
CY2022Q1	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-13092000	usd
CY2023Q1	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	103398000	usd
CY2022Q1	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	254826000	usd
CY2023Q1	bku	Dividends Declared And Payable DividendsDeclaredAndPayable	19637000	usd
CY2022Q1	bku	Dividends Declared And Payable DividendsDeclaredAndPayable	20966000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	2435981000	usd
CY2023Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	116103000	usd
CY2023Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.27
CY2023Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	19637000	usd
CY2023Q1	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	9589000	usd
CY2023Q1	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	6956000	usd
CY2023Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	55022000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	2481394000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	3037761000	usd
CY2022Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-74609000	usd
CY2022Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.25
CY2022Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	20966000	usd
CY2022Q1	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	6331000	usd
CY2022Q1	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	5182000	usd
CY2022Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	82103000	usd
CY2022Q1	us-gaap	Stockholders Equity StockholdersEquity	2861232000	usd
CY2023Q1	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:8pt;margin-top:12pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Accounting Estimates</span></div><div style="margin-bottom:8pt;margin-top:8pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, and expenses and disclosures of contingent assets and liabilities. Actual results could differ significantly from these estimates.</span></div>The most significant estimate impacting the Company's consolidated financial statements is the ACL.
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	52882000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	67150000	usd
CY2023Q1	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	798000	usd
CY2022Q1	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	929000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	52084000	usd
CY2022Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	66221000	usd
CY2023Q1	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	74755002	shares
CY2022Q1	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	84983873	shares
CY2023Q1	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	1193881	shares
CY2022Q1	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	1211807	shares
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	73561121	shares
CY2022Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	83772066	shares
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.71
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.79
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	52084000	usd
CY2022Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	66221000	usd
CY2023Q1	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	-3000	usd
CY2022Q1	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	-1000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	52087000	usd
CY2022Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	66222000	usd
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	73561121	shares
CY2022Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	83772066	shares
CY2023Q1	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	447581	shares
CY2022Q1	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	137704	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	74008702	shares
CY2022Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	83909770	shares
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.79
CY2023Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1190511	shares
CY2022Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1267676	shares
CY2023Q1	us-gaap	Debt Securities Available For Sale Amortized Cost After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostAfterAllowanceForCreditLoss	10028525000	usd
CY2023Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	5304000	usd
CY2023Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	578999000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	9454830000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale And Held To Maturity Amortized Cost After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss	10038525000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale And Held To Maturity DebtSecuritiesAvailableForSaleAndHeldToMaturity	9464830000	usd
CY2023Q1	us-gaap	Investments Investments	9533599000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostAfterAllowanceForCreditLoss	10328650000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	2854000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	677061000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Amortized Cost After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss	10338650000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity DebtSecuritiesAvailableForSaleAndHeldToMaturity	9664443000	usd
CY2022Q4	us-gaap	Investments Investments	9755327000	usd
CY2022Q4	bku	Number Of Held To Maturity Securities NumberOfHeldToMaturitySecurities	1	bond
CY2023Q1	bku	Number Of Held To Maturity Securities NumberOfHeldToMaturitySecurities	1	bond
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	1399602000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	1345012000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	5563191000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	5343463000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	1811023000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	1648170000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	1254709000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	1118185000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Amortized Cost After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostAfterAllowanceForCreditLoss	10028525000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	9454830000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	772000	usd
CY2022Q1	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	2750000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	20000	usd
CY2022Q1	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	77000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	752000	usd
CY2022Q1	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	2673000	usd
CY2023Q1	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-13301000	usd
CY2022Q1	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-10541000	usd
CY2023Q1	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-12549000	usd
CY2022Q1	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-7868000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	1277284000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	19065000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	7616844000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	559934000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	8894128000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	578999000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	4998677000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	215467000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	4334293000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	461594000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	9332970000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	677061000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	569	security
CY2023Q1	bku	Number Of Securities Amount Of Impairment Insignificant NumberOfSecuritiesAmountOfImpairmentInsignificant	102	security
CY2023Q1	bku	Availableforsalesecurities Gross Unrealized Loss Considered Insignificantfor Otti Analysis AvailableforsalesecuritiesGrossUnrealizedLossConsideredInsignificantforOTTIAnalysis	900000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Accumulated Gross Unrealized Gain Loss Before Tax DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax	-573700000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Accumulated Gross Unrealized Gain Loss Before Tax DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax	-674200000	usd
CY2023Q1	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	24892894000	usd
CY2023Q1	bku	Percent Of Total Loans PercentOfTotalLoans	1.000
CY2022Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	24885988000	usd
CY2022Q4	bku	Percent Of Total Loans PercentOfTotalLoans	1.000
CY2023Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	158792000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	147946000	usd
CY2023Q1	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	24734102000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	24738042000	usd
CY2023Q1	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	56000000	usd
CY2022Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	61000000	usd
CY2023Q1	us-gaap	Sales Type And Direct Financing Leases Lease Receivable SalesTypeAndDirectFinancingLeasesLeaseReceivable	641000000	usd
CY2022Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable SalesTypeAndDirectFinancingLeasesLeaseReceivable	634000000	usd
CY2022Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable SalesTypeAndDirectFinancingLeasesLeaseReceivable	634000000	usd
CY2023Q1	bku	Pledged Financial Instruments Not Separately Reported Loans Receivable For Federal Home Loan Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivableForFederalHomeLoanBankDebt	13200000000	usd
CY2022Q4	bku	Pledged Financial Instruments Not Separately Reported Loans Receivable For Federal Home Loan Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivableForFederalHomeLoanBankDebt	12400000000	usd
CY2023Q1	us-gaap	Interest Receivable InterestReceivable	132000000	usd
CY2022Q4	us-gaap	Interest Receivable InterestReceivable	129000000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	147946000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	126457000	usd
CY2023Q1	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	7899000	usd
CY2022Q1	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	10671000	usd
CY2023Q1	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	2944000	usd
CY2022Q1	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	2211000	usd
CY2023Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	158792000	usd
CY2022Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	125443000	usd
CY2023Q1	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	10800000	usd
CY2022Q4	bku	Allowance For Credit Losses To Total Loans In Percent AllowanceForCreditLossesToTotalLoansInPercent	0.0059
CY2023Q1	bku	Allowance For Credit Losses To Total Loans In Percent AllowanceForCreditLossesToTotalLoansInPercent	0.0064
CY2023Q1	bku	Accounts Receivable Allowance For Credit Loss Writeoff Year One Originated Current Fiscal Year AccountsReceivableAllowanceForCreditLossWriteoffYearOneOriginatedCurrentFiscalYear	0	usd
CY2023Q1	bku	Accounts Receivable Allowance For Credit Loss Writeoff Year Two Originated Fiscal Year Before Current Fiscal Year AccountsReceivableAllowanceForCreditLossWriteoffYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	64000	usd
CY2023Q1	bku	Accounts Receivable Allowance For Credit Loss Writeoff Year Three Originated Two Years Before Current Fiscal Year AccountsReceivableAllowanceForCreditLossWriteoffYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	24000	usd
CY2023Q1	bku	Accounts Receivable Allowance For Credit Loss Writeoff Year Four Originated Three Years Before Current Fiscal Year AccountsReceivableAllowanceForCreditLossWriteoffYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	33000	usd
CY2023Q1	bku	Accounts Receivable Allowance For Credit Loss Writeoff Year Five Originated Four Years Before Current Fiscal Year AccountsReceivableAllowanceForCreditLossWriteoffYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	2674000	usd
CY2023Q1	bku	Accounts Receivable Allowance For Credit Loss Writeoff Originated More Than Five Years Before Current Fiscal Year AccountsReceivableAllowanceForCreditLossWriteoffOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	4795000	usd
CY2023Q1	bku	Accounts Receivable Allowance For Credit Loss Writeoff Originated Revolving Loans AccountsReceivableAllowanceForCreditLossWriteoffOriginatedRevolvingLoans	309000	usd
CY2023Q1	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	7899000	usd
CY2023Q1	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	2193000	usd
CY2022Q1	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	384000	usd
CY2023Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	19788000	usd
CY2022Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	7830000	usd
CY2023Q1	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	24892894000	usd
CY2022Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	24885988000	usd
CY2023Q1	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	439000000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	494000000	usd
CY2023Q1	us-gaap	Loans And Leases Receivable Impaired Nonperforming Nonaccrual Of Interest LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest	113641000	usd
CY2023Q1	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	19991000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Impaired Nonperforming Nonaccrual Of Interest LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest	104426000	usd
CY2022Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	24221000	usd
CY2023Q1	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	1900000	usd
CY2022Q1	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	1300000	usd
CY2023Q1	us-gaap	Notes Receivable Gross NotesReceivableGross	41982000	usd
CY2022Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	58065000	usd
CY2023Q1	bku	Financing Receivable Modified In Period Amount FinancingReceivableModifiedInPeriodAmount	45025000	usd
CY2023Q1	bku	Financing Receivable Modified After12 Months FinancingReceivableModifiedAfter12Months	45025000	usd
CY2022Q1	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	402
CY2022Q1	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	80750000	usd
CY2022Q1	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	125
CY2022Q1	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	21391000	usd
CY2023Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.264
CY2022Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.244
CY2023Q1	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2023Q1	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	12154000	usd
CY2022Q1	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-5432000	usd
CY2023Q1	us-gaap	Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet	-37100000	usd
CY2023Q1	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	5155000	usd
CY2023Q1	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	5155000	usd
CY2023Q1	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	0	usd
CY2023Q1	us-gaap	Hedged Liability Fair Value Hedge HedgedLiabilityFairValueHedge	100000000	usd
CY2023Q1	us-gaap	Hedged Liability Fair Value Hedge Cumulative Increase Decrease HedgedLiabilityFairValueHedgeCumulativeIncreaseDecrease	-3114000	usd
CY2023Q1	us-gaap	Closed Portfolio And Beneficial Interest Last Of Layer Amortized Cost ClosedPortfolioAndBeneficialInterestLastOfLayerAmortizedCost	1000000000	usd
CY2023Q1	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	77957000	usd
CY2023Q1	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	0	usd
CY2023Q1	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	77957000	usd
CY2023Q1	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	5155000	usd
CY2023Q1	us-gaap	Derivative Asset Fair Value Of Collateral DerivativeAssetFairValueOfCollateral	72032000	usd
CY2023Q1	bku	Derivative Asset Net Amount Not Offset DerivativeAssetNetAmountNotOffset	770000	usd
CY2023Q1	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	5155000	usd
CY2023Q1	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	0	usd
CY2023Q1	bku	Derivative Liability Net Amount Not Offset DerivativeLiabilityNetAmountNotOffset	0	usd
CY2023Q1	bku	Gross Amounts Recognized Derivative Assets And Liabilities GrossAmountsRecognizedDerivativeAssetsAndLiabilities	72802000	usd
CY2023Q1	bku	Derivative Asset Liability Collateral Offset DerivativeAssetLiabilityCollateralOffset	0	usd
CY2023Q1	bku	Derivative Asset Liability Fair Value Amount Not Offset Against Collateral DerivativeAssetLiabilityFairValueAmountNotOffsetAgainstCollateral	72802000	usd
CY2023Q1	bku	Derivative Asset Liability Fair Value Gross Liability Asset DerivativeAssetLiabilityFairValueGrossLiabilityAsset	0	usd
CY2023Q1	bku	Derivative Asset Liability Fair Value Of Collateral DerivativeAssetLiabilityFairValueOfCollateral	72032000	usd
CY2023Q1	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	770000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	86544000	usd
CY2022Q4	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	0	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	86544000	usd
CY2022Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	3912000	usd
CY2022Q4	us-gaap	Derivative Asset Fair Value Of Collateral DerivativeAssetFairValueOfCollateral	79447000	usd
CY2022Q4	bku	Derivative Asset Net Amount Not Offset DerivativeAssetNetAmountNotOffset	3185000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	3912000	usd
CY2022Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	0	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	3912000	usd
CY2022Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	3912000	usd
CY2022Q4	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	0	usd
CY2022Q4	bku	Derivative Liability Net Amount Not Offset DerivativeLiabilityNetAmountNotOffset	0	usd
CY2022Q4	bku	Gross Amounts Recognized Derivative Assets And Liabilities GrossAmountsRecognizedDerivativeAssetsAndLiabilities	82632000	usd
CY2022Q4	bku	Derivative Asset Liability Collateral Offset DerivativeAssetLiabilityCollateralOffset	0	usd
CY2022Q4	bku	Derivative Asset Liability Fair Value Amount Not Offset Against Collateral DerivativeAssetLiabilityFairValueAmountNotOffsetAgainstCollateral	82632000	usd
CY2022Q4	bku	Derivative Asset Liability Fair Value Gross Liability Asset DerivativeAssetLiabilityFairValueGrossLiabilityAsset	0	usd
CY2022Q4	bku	Derivative Asset Liability Fair Value Of Collateral DerivativeAssetLiabilityFairValueOfCollateral	79447000	usd
CY2022Q4	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	3185000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	101265000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	26329000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	74936000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-236434000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-61454000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-174980000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	752000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	196000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	556000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	2673000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	695000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1978000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	100513000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	26133000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	74380000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-239107000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-62149000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-176958000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-2926000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-761000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-2165000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	41963000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	10784000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	31179000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-15080000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-3921000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-11159000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	47395000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	12196000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	35199000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	85433000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	22212000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	63221000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-191712000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-49953000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-141759000	usd
CY2023Q1	bku	Savings And Money Market Average Balance SavingsAndMoneyMarketAverageBalance	12145922000	usd
CY2023Q1	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	9606805000	usd
CY2023Q1	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	99473000	usd
CY2022Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	9834066000	usd
CY2022Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	126220000	usd
CY2023Q1	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	9533448000	usd
CY2022Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	9755190000	usd
CY2023Q1	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	6568197000	usd
CY2023Q1	bku	Noninterest Bearing Deposit Liabilities Domestic Average Balance NoninterestBearingDepositLiabilitiesDomesticAverageBalance	7458221000	usd
CY2023Q1	bku	Weighted Average Rate Non Interest Bearing Domestic Deposit WeightedAverageRateNonInterestBearingDomesticDeposit	0
CY2022Q1	bku	Noninterest Bearing Deposit Liabilities Domestic Average Balance NoninterestBearingDepositLiabilitiesDomesticAverageBalance	9047864000	usd
CY2022Q1	bku	Weighted Average Rate Non Interest Bearing Domestic Deposit WeightedAverageRateNonInterestBearingDomesticDeposit	0
CY2023Q1	bku	Interest Bearing Deposit Liabilities Domestic Average Balance InterestBearingDepositLiabilitiesDomesticAverageBalance	2283505000	usd
CY2023Q1	bku	Weighted Average Rate Interest Bearing Domestic Deposit WeightedAverageRateInterestBearingDomesticDeposit	0.0187
CY2022Q1	bku	Interest Bearing Deposit Liabilities Domestic Average Balance InterestBearingDepositLiabilitiesDomesticAverageBalance	3078037000	usd
CY2022Q1	bku	Weighted Average Rate Interest Bearing Domestic Deposit WeightedAverageRateInterestBearingDomesticDeposit	0.0018
CY2023Q1	bku	Weighted Average Rate Domestic Deposit Savings And Money Market WeightedAverageRateDomesticDepositSavingsAndMoneyMarket	0.0306
CY2022Q1	bku	Savings And Money Market Average Balance SavingsAndMoneyMarketAverageBalance	13401332000	usd
CY2022Q1	bku	Weighted Average Rate Domestic Deposit Savings And Money Market WeightedAverageRateDomesticDepositSavingsAndMoneyMarket	0.0021
CY2023Q1	bku	Time Deposits Average Balance TimeDepositsAverageBalance	4526480000	usd
CY2023Q1	us-gaap	Weighted Average Rate Domestic Deposit Time Deposits WeightedAverageRateDomesticDepositTimeDeposits	0.0281
CY2022Q1	bku	Time Deposits Average Balance TimeDepositsAverageBalance	3319585000	usd
CY2022Q1	us-gaap	Weighted Average Rate Domestic Deposit Time Deposits WeightedAverageRateDomesticDepositTimeDeposits	0.0044
CY2023Q1	bku	Deposits Average Balance DepositsAverageBalance	26414128000	usd
CY2023Q1	bku	Weighted Average Rate Domestic Deposits WeightedAverageRateDomesticDeposits	0.0205
CY2022Q1	bku	Deposits Average Balance DepositsAverageBalance	28846818000	usd
CY2022Q1	bku	Weighted Average Rate Domestic Deposits WeightedAverageRateDomesticDeposits	0.0017
CY2023Q1	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	819000000	usd
CY2022Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	730000000	usd
CY2023Q1	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	3534369000	usd
CY2023Q1	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	1306729000	usd
CY2023Q1	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	97271000	usd
CY2023Q1	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	310548000	usd
CY2023Q1	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	1032000	usd
CY2023Q1	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	28000	usd
CY2023Q1	us-gaap	Time Deposits TimeDeposits	5249977000	usd
CY2023Q1	bku	Publicfundsdepositsincludedindeposits Publicfundsdepositsincludedindeposits	3600000000	usd
CY2023Q1	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	5200000000	usd
CY2023Q1	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	10545000	usd
CY2022Q1	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	1364000	usd
CY2023Q1	bku	Interest Expense Money Market And Savings Deposits InterestExpenseMoneyMarketAndSavingsDeposits	91724000	usd
CY2022Q1	bku	Interest Expense Money Market And Savings Deposits InterestExpenseMoneyMarketAndSavingsDeposits	6931000	usd
CY2023Q1	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	31361000	usd
CY2022Q1	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	3562000	usd
CY2023Q1	us-gaap	Interest Expense Domestic Deposits InterestExpenseDomesticDeposits	133630000	usd
CY2022Q1	us-gaap	Interest Expense Domestic Deposits InterestExpenseDomesticDeposits	11857000	usd
CY2023Q1	us-gaap	Noninterest Expense Commission Expense NoninterestExpenseCommissionExpense	8500000	usd
CY2022Q1	us-gaap	Noninterest Expense Commission Expense NoninterestExpenseCommissionExpense	1600000	usd

Files In Submission

Name	View Source	Status
bku-20230331_cal.xml	Edgar Link	unprocessable
bku-20230331_def.xml	Edgar Link	unprocessable
bku-20230331_lab.xml	Edgar Link	unprocessable
0001504008-23-000014-index-headers.html	Edgar Link	pending
0001504008-23-000014-index.html	Edgar Link	pending
0001504008-23-000014.txt	Edgar Link	pending
0001504008-23-000014-xbrl.zip	Edgar Link	pending
a20230331ex311.htm	Edgar Link	pending
a20230331ex312.htm	Edgar Link	pending
a20230331ex321.htm	Edgar Link	pending
a20230331ex322.htm	Edgar Link	pending
bku-20230331.htm	Edgar Link	pending
bku-20230331.xsd	Edgar Link	pending
bku-20230331_g1.jpg	Edgar Link	pending
bku-20230331_g2.jpg	Edgar Link	pending
bku-20230331_g3.jpg	Edgar Link	pending
bku-20230331_g4.jpg	Edgar Link	pending
bku-20230331_g5.jpg	Edgar Link	pending
bku-20230331_g6.jpg	Edgar Link	pending
bku-20230331_g7.jpg	Edgar Link	pending
bku-20230331_g8.jpg	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
bku-20230331_pre.xml	Edgar Link	unprocessable
bku-20230331_htm.xml	Edgar Link	completed
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$BKU
BankUnited, Inc. Stock $bku

2023 Q2 Form 10-Q Financial Statement

#000150400823000014 Filed on May 02, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BKU BankUnited, Inc. Stock $bku

2023 Q2 Form 10-Q Financial Statement

#000150400823000014 Filed on May 02, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BKU
BankUnited, Inc. Stock $bku