$bku 2015 Q2 10-Q

Concept	2015 Q2	2014 Q2
Revenue	$212.6M	$191.7M
YoY Change	10.9%	3.03%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development	$3.345M	$3.266M
YoY Change	2.42%	-6.26%
% of Gross Profit
Depreciation & Amortization	$10.20M	$7.500M
YoY Change	36.0%	38.89%
% of Gross Profit
Operating Expenses	$3.345M	$3.266M
YoY Change	2.42%	-6.26%
Operating Profit
YoY Change
Interest Expense	$31.66M	$25.86M
YoY Change	22.44%	17.27%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$70.17M	$72.54M
YoY Change	-3.28%	-16.52%
Income Tax	$23.53M	$24.00M
% Of Pretax Income	33.53%	33.08%
Net Earnings	$46.64M	$48.54M
YoY Change	-3.93%	-10.12%
Net Earnings / Revenue	21.93%	25.32%
Basic Earnings Per Share	$0.44	$0.46
Diluted Earnings Per Share	$0.43	$0.46
COMMON SHARES
Basic Shares Outstanding	102.3M shares	100.4M shares
Diluted Shares Outstanding	103.1M shares	100.6M shares

Concept	2015 Q2	2014 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$164.9M	$379.2M
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	$418.0M	$200.0M
YoY Change	109.0%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$83.00M	$79.00M
YoY Change	5.06%	23.44%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$21.40B	$17.01B
YoY Change	25.83%	28.53%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt		$1.000M
YoY Change		-50.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities		$1.000M
YoY Change		-50.0%
LONG-TERM LIABILITIES
Long-Term Debt	$10.00M	$11.00M
YoY Change	-9.09%
Other Long-Term Liabilities	$265.0M	$258.0M
YoY Change	2.71%	69.74%
Total Long-Term Liabilities	$275.0M	$269.0M
YoY Change	2.23%	76.97%
TOTAL LIABILITIES
Total Short-Term Liabilities		$1.000M
Total Long-Term Liabilities	$275.0M	$269.0M
Total Liabilities	$19.26B	$14.99B
YoY Change	28.42%	31.74%
SHAREHOLDERS EQUITY
Retained Earnings	$700.1M	$595.2M
YoY Change	17.63%
Common Stock	$1.035M	$1.017M
YoY Change	1.77%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.146B	$2.015B
YoY Change
Total Liabilities & Shareholders Equity	$21.40B	$17.01B
YoY Change	25.83%	28.53%

Concept	2015 Q2	2014 Q2
OPERATING ACTIVITIES
Net Income	$46.64M	$48.54M
YoY Change	-3.93%	-10.12%
Depreciation, Depletion And Amortization	$10.20M	$7.500M
YoY Change	36.0%	38.89%
Cash From Operating Activities	$48.10M	-$32.90M
YoY Change	-246.2%	-2293.33%
INVESTING ACTIVITIES
Capital Expenditures	-$70.00M	$3.100M
YoY Change	-2358.06%	-114.22%
Acquisitions
YoY Change
Other Investing Activities	-$1.529B	-$974.5M
YoY Change	56.94%	43.31%
Cash From Investing Activities	-$1.599B	-$971.3M
YoY Change	64.66%	38.42%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	1.412B	1.120B
YoY Change	26.01%	147.5%
NET CHANGE
Cash From Operating Activities	48.10M	-32.90M
Cash From Investing Activities	-1.599B	-971.3M
Cash From Financing Activities	1.412B	1.120B
Net Change In Cash	-139.6M	116.0M
YoY Change	-220.34%	-146.85%
FREE CASH FLOW
Cash From Operating Activities	$48.10M	-$32.90M
Capital Expenditures	-$70.00M	$3.100M
Free Cash Flow	$118.1M	-$36.00M
YoY Change	-428.06%	-254.51%

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	bku	Gain Lossoncovered Ore Onet GainLossoncoveredOREOnet	2589000	USD
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2015
	bku	Amortization Accretion Of Discounts And Premiums AmortizationAccretionOfDiscountsAndPremiums	138373000	USD
	bku	Amortization Accretion Of Discounts And Premiums AmortizationAccretionOfDiscountsAndPremiums	83758000	USD
	bku	Amountsreclassifiedfrom Aoc Iintoearningsasaresultofdiscontinuationofcashflowhedgesorearlyextinguishmentofdebt AmountsreclassifiedfromAOCIintoearningsasaresultofdiscontinuationofcashflowhedgesorearlyextinguishmentofdebt	0	USD
	bku	Amountsreclassifiedfrom Aoc Iintoearningsasaresultofdiscontinuationofcashflowhedgesorearlyextinguishmentofdebt AmountsreclassifiedfromAOCIintoearningsasaresultofdiscontinuationofcashflowhedgesorearlyextinguishmentofdebt	0	USD
CY2015Q2	bku	Availablefor Sale Securities Pledgedas Collateralfor Interest Rate Swaps AvailableforSaleSecuritiesPledgedasCollateralforInterestRateSwaps	47000000	USD
CY2015Q2	bku	Availableforsalesecurities Gross Unrealized Loss Considered Insignificantfor Otti Analysis AvailableforsalesecuritiesGrossUnrealizedLossConsideredInsignificantforOTTIAnalysis	120000	USD
CY2015Q2	bku	Branches Located In New York BranchesLocatedInNewYork	6	banking_center
CY2015Q2	bku	Cash Pledgedas Collateralfor Interest Rate Swaps CashPledgedasCollateralforInterestRateSwaps	30000000	USD
	bku	Decrease Increase In Fdic Indemnification Asset Claims Filed Investing Activities DecreaseIncreaseInFDICIndemnificationAssetClaimsFiledInvestingActivities	66704000	USD
CY2014	bku	Decrease Increase In Fdic Indemnification Asset Claims Filed Investing Activities DecreaseIncreaseInFDICIndemnificationAssetClaimsFiledInvestingActivities	114916000	USD
	bku	Decrease Increase In Fdic Indemnification Asset Claims Filed Investing Activities DecreaseIncreaseInFDICIndemnificationAssetClaimsFiledInvestingActivities	29079000	USD
CY2014Q4	bku	Derivative Asset Liability Collateral Offset DerivativeAssetLiabilityCollateralOffset	0	USD
CY2015Q2	bku	Derivative Asset Liability Collateral Offset DerivativeAssetLiabilityCollateralOffset	0	USD
CY2014Q4	bku	Derivative Asset Liability Fair Value Amount Not Offset Against Collateral DerivativeAssetLiabilityFairValueAmountNotOffsetAgainstCollateral	-64974000	USD
CY2015Q2	bku	Derivative Asset Liability Fair Value Amount Not Offset Against Collateral DerivativeAssetLiabilityFairValueAmountNotOffsetAgainstCollateral	-59830000	USD
CY2014Q4	bku	Derivative Asset Liability Fair Value Gross Liability Asset DerivativeAssetLiabilityFairValueGrossLiabilityAsset	0	USD
CY2015Q2	bku	Derivative Asset Liability Fair Value Gross Liability Asset DerivativeAssetLiabilityFairValueGrossLiabilityAsset	0	USD
CY2014Q4	bku	Derivative Asset Liability Fair Value Of Collateral DerivativeAssetLiabilityFairValueOfCollateral	-64974000	USD
CY2015Q2	bku	Derivative Asset Liability Fair Value Of Collateral DerivativeAssetLiabilityFairValueOfCollateral	-58509000	USD
	bku	Disbursementofloanproceedsfromescrow Disbursementofloanproceedsfromescrow	52500000	USD
	bku	Disbursementofloanproceedsfromescrow Disbursementofloanproceedsfromescrow	0	USD
	bku	Dividends Declared And Payable DividendsDeclaredAndPayable	21958000	USD
	bku	Dividends Declared And Payable DividendsDeclaredAndPayable	22338000	USD
CY2014Q4	bku	Due From Federal Reserve Bank DueFromFederalReserveBank	100596000	USD
CY2015Q2	bku	Due From Federal Reserve Bank DueFromFederalReserveBank	91649000	USD
	bku	Effective Duration Of Investment Portfolio EffectiveDurationOfInvestmentPortfolio	P1Y5M11D
CY2013Q4	bku	Fdic Indemnification Assetand Liabilitynet FDICIndemnificationAssetandLiabilitynet	1205117000	USD
CY2014Q4	bku	Fdic Indemnification Assetand Liabilitynet FDICIndemnificationAssetandLiabilitynet	974335000	USD
CY2015Q2	bku	Fdic Indemnification Assetand Liabilitynet FDICIndemnificationAssetandLiabilitynet	859755000	USD
CY2015Q2	bku	Fdic Indemnification Liability FDICIndemnificationLiability	217000	USD
	bku	Fair Value Assets Level Transfers Amount FairValueAssetsLevelTransfersAmount	0	USD
	bku	Fair Value Assets Level Transfers Amount FairValueAssetsLevelTransfersAmount	0	USD
CY2014Q2	bku	Federal Deposit Insurance Corporation Indemnification Reimbursement Of Costs Of Resolution Of Covered Assets FederalDepositInsuranceCorporationIndemnificationReimbursementOfCostsOfResolutionOfCoveredAssets	1112000	USD
	bku	Federal Deposit Insurance Corporation Indemnification Reimbursement Of Costs Of Resolution Of Covered Assets FederalDepositInsuranceCorporationIndemnificationReimbursementOfCostsOfResolutionOfCoveredAssets	2240000	USD
CY2015Q2	bku	Federal Deposit Insurance Corporation Indemnification Reimbursement Of Costs Of Resolution Of Covered Assets FederalDepositInsuranceCorporationIndemnificationReimbursementOfCostsOfResolutionOfCoveredAssets	0	USD
	bku	Federal Deposit Insurance Corporation Indemnification Reimbursement Of Costs Of Resolution Of Covered Assets FederalDepositInsuranceCorporationIndemnificationReimbursementOfCostsOfResolutionOfCoveredAssets	707000	USD
	bku	Financing Receivable Credit Quality Value At Which Relationships Are Reeavluated At Least Annually FinancingReceivableCreditQualityValueAtWhichRelationshipsAreReeavluatedAtLeastAnnually	1000000	USD
CY2014Q2	bku	Gain Loss Associated With Covered Assets GainLossAssociatedWithCoveredAssets	10689000	USD
	bku	Gain Loss Associated With Covered Assets GainLossAssociatedWithCoveredAssets	45055000	USD
CY2015Q2	bku	Gain Loss Associated With Covered Assets GainLossAssociatedWithCoveredAssets	20911000	USD
	bku	Gain Loss Associated With Covered Assets GainLossAssociatedWithCoveredAssets	46100000	USD
CY2014Q2	bku	Gain Loss On Indemnification Asset GainLossOnIndemnificationAsset	-5896000	USD
	bku	Gain Loss On Indemnification Asset GainLossOnIndemnificationAsset	-22800000	USD
CY2014	bku	Gain Loss On Indemnification Asset GainLossOnIndemnificationAsset	-46396000	USD
CY2015Q2	bku	Gain Loss On Indemnification Asset GainLossOnIndemnificationAsset	-16771000	USD
	bku	Gain Loss On Indemnification Asset GainLossOnIndemnificationAsset	-37036000	USD
CY2014Q2	bku	Gain Lossoncovered Ore Onet GainLossoncoveredOREOnet	-218000	USD
CY2015Q2	bku	Gain Lossoncovered Ore Onet GainLossoncoveredOREOnet	-222000	USD
	bku	Gain Lossoncovered Ore Onet GainLossoncoveredOREOnet	-693000	USD
CY2014Q2	bku	Gain Lossonsaleofloansnetlossrelatedtocoveredloans GainLossonsaleofloansnetlossrelatedtocoveredloans	-366000	USD
	bku	Gain Lossonsaleofloansnetlossrelatedtocoveredloans GainLossonsaleofloansnetlossrelatedtocoveredloans	18928000	USD
CY2015Q2	bku	Gain Lossonsaleofloansnetlossrelatedtocoveredloans GainLossonsaleofloansnetlossrelatedtocoveredloans	7417000	USD
	bku	Gain Lossonsaleofloansnetlossrelatedtocoveredloans GainLossonsaleofloansnetlossrelatedtocoveredloans	17423000	USD
CY2014Q4	bku	Gross Amounts Recognized Derivative Assets And Liabilities GrossAmountsRecognizedDerivativeAssetsAndLiabilities	-64974000	USD
CY2015Q2	bku	Gross Amounts Recognized Derivative Assets And Liabilities GrossAmountsRecognizedDerivativeAssetsAndLiabilities	-59830000	USD
CY2014Q2	bku	Income Loss From Resolution Of Covered Assets IncomeLossFromResolutionOfCoveredAssets	12170000	USD
	bku	Income Loss From Resolution Of Covered Assets IncomeLossFromResolutionOfCoveredAssets	25231000	USD
CY2015Q2	bku	Income Loss From Resolution Of Covered Assets IncomeLossFromResolutionOfCoveredAssets	13743000	USD
	bku	Income Loss From Resolution Of Covered Assets IncomeLossFromResolutionOfCoveredAssets	28897000	USD
	bku	Lifeof Certificatesof Deposit Hedged LifeofCertificatesofDepositHedged	P1Y
CY2014Q4	bku	Loans And Leases Receivable Allowance Covered And Not Covered LoansAndLeasesReceivableAllowanceCoveredAndNotCovered	95542000	USD
CY2015Q2	bku	Loans And Leases Receivable Allowance Covered And Not Covered LoansAndLeasesReceivableAllowanceCoveredAndNotCovered	107385000	USD
CY2014Q4	bku	Loans And Leases Receivable Deferred Income Covered And Not Covered LoansAndLeasesReceivableDeferredIncomeCoveredAndNotCovered	-36502000	USD
CY2015Q2	bku	Loans And Leases Receivable Deferred Income Covered And Not Covered LoansAndLeasesReceivableDeferredIncomeCoveredAndNotCovered	-37195000	USD
CY2014Q4	bku	Loans And Leases Receivable Net Of Deferred Income Covered LoansAndLeasesReceivableNetOfDeferredIncomeCovered	1043864000	USD
CY2015Q2	bku	Loans And Leases Receivable Net Of Deferred Income Covered LoansAndLeasesReceivableNetOfDeferredIncomeCovered	916071000	USD
CY2014Q4	bku	Loans And Leases Receivable Net Of Deferred Income Covered And Not Covered LoansAndLeasesReceivableNetOfDeferredIncomeCoveredAndNotCovered	12414769000	USD
CY2015Q2	bku	Loans And Leases Receivable Net Of Deferred Income Covered And Not Covered LoansAndLeasesReceivableNetOfDeferredIncomeCoveredAndNotCovered	14326993000	USD
CY2014Q4	bku	Loansand Leases Receivable Gross Coveredand Non Covered LoansandLeasesReceivableGrossCoveredandNonCovered	12378267000	USD
CY2015Q2	bku	Loansand Leases Receivable Gross Coveredand Non Covered LoansandLeasesReceivableGrossCoveredandNonCovered	14289798000	USD
CY2009Q2	bku	Maximum Amount Fdic Will Reimburse MaximumAmountFDICWillReimburse	4000000000.0	USD
	bku	Mortgage Loan Commitment Time Period Maximum MortgageLoanCommitmentTimePeriodMaximum	P75D
	bku	Mortgage Loan Commitment Time Period Minimum MortgageLoanCommitmentTimePeriodMinimum	P30D
CY2014Q2	bku	Net Income Avaialble To Participating Common Shareholders NetIncomeAvaialbleToParticipatingCommonShareholders	46609000	USD
	bku	Net Income Avaialble To Participating Common Shareholders NetIncomeAvaialbleToParticipatingCommonShareholders	99728000	USD
CY2015Q2	bku	Net Income Avaialble To Participating Common Shareholders NetIncomeAvaialbleToParticipatingCommonShareholders	44827000	USD
	bku	Net Income Avaialble To Participating Common Shareholders NetIncomeAvaialbleToParticipatingCommonShareholders	89512000	USD
CY2015Q2	bku	Number Of Branches NumberOfBranches	99	branch
CY2015Q2	bku	Number Of Geographic Areas Branches Located In NumberOfGeographicAreasBranchesLocatedIn	15	county
CY2014Q4	bku	Number Of Held To Maturity Securities NumberOfHeldToMaturitySecurities	1	security
CY2015Q2	bku	Number Of Held To Maturity Securities NumberOfHeldToMaturitySecurities	1	security
CY2009Q2	bku	Number Of Loss Sharing Agreements NumberOfLossSharingAgreements	2	Agreement
CY2015Q2	bku	Number Of Securities Amount Of Impairment Insignificant NumberOfSecuritiesAmountOfImpairmentInsignificant	16	security
	bku	Number Of Securities Determined To Be Other Than Temporarily Impaired During The Period NumberOfSecuritiesDeterminedToBeOtherThanTemporarilyImpairedDuringThePeriod	0	security
	bku	Number Of Securities Determined To Be Other Than Temporarily Impaired During The Period NumberOfSecuritiesDeterminedToBeOtherThanTemporarilyImpairedDuringThePeriod	0	security
	bku	Number Of Subsidiaries NumberOfSubsidiaries	1	subsidiary
CY2014Q2	bku	Other Comprehensive Income Loss Reclassified To Interest Expense Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	1412000	USD
	bku	Other Comprehensive Income Loss Reclassified To Interest Expense Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	2807000	USD
CY2015Q2	bku	Other Comprehensive Income Loss Reclassified To Interest Expense Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	1433000	USD
	bku	Other Comprehensive Income Loss Reclassified To Interest Expense Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	2853000	USD
CY2014Q2	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	5246000	USD
	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	10400000	USD
CY2015Q2	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	5098000	USD
	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	10221000	USD
CY2014Q2	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	3222000	USD
	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	6388000	USD
CY2015Q2	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	3037000	USD
	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	6184000	USD
CY2014Q2	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Tax Effect OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTaxEffect	2024000	USD
	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Tax Effect OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTaxEffect	4012000	USD
CY2015Q2	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Tax Effect OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTaxEffect	2061000	USD
	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Tax Effect OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTaxEffect	4037000	USD
CY2014Q2	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	867000	USD
	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	1724000	USD
CY2015Q2	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	854000	USD
	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	1726000	USD
CY2014Q2	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	545000	USD
	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	1083000	USD
CY2015Q2	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	579000	USD
	bku	Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	1127000	USD
CY2014Q2	bku	Otherrealestateownedexpenseincomenet Otherrealestateownedexpenseincomenet	1726000	USD
	bku	Otherrealestateownedexpenseincomenet Otherrealestateownedexpenseincomenet	29000	USD
CY2015Q2	bku	Otherrealestateownedexpenseincomenet Otherrealestateownedexpenseincomenet	1053000	USD
	bku	Otherrealestateownedexpenseincomenet Otherrealestateownedexpenseincomenet	2277000	USD
CY2009Q2	bku	Percent Fdic Will Reimburse For Losses PercentFDICWillReimburseForLosses	0.8
CY2009Q2	bku	Percent Of Losses In Excess Of Maximum Amount Fdic Will Reimburse PercentOfLossesInExcessOfMaximumAmountFDICWillReimburse	0.95
CY2014Q4	bku	Percent Of Total Loans PercentOfTotalLoans	1
CY2015Q2	bku	Percent Of Total Loans PercentOfTotalLoans	1
CY2014Q2	bku	Provision For Covered Loans And Unfunded Commitments ProvisionForCoveredLoansAndUnfundedCommitments	897000	USD
	bku	Provision For Covered Loans And Unfunded Commitments ProvisionForCoveredLoansAndUnfundedCommitments	1693000	USD
CY2015Q2	bku	Provision For Covered Loans And Unfunded Commitments ProvisionForCoveredLoansAndUnfundedCommitments	27000	USD
	bku	Provision For Covered Loans And Unfunded Commitments ProvisionForCoveredLoansAndUnfundedCommitments	-473000	USD
CY2015Q2	bku	Provision For Covered Unfunded Commitments ProvisionForCoveredUnfundedCommitments	18000	USD
	bku	Provision For Covered Unfunded Commitments ProvisionForCoveredUnfundedCommitments	67000	USD
CY2014Q2	bku	Provision For Loan And Lease Losses Covered Loans ProvisionForLoanAndLeaseLossesCoveredLoans	-897000	USD
	bku	Provision For Loan And Lease Losses Covered Loans ProvisionForLoanAndLeaseLossesCoveredLoans	-1693000	USD
CY2015Q2	bku	Provision For Loan And Lease Losses Covered Loans ProvisionForLoanAndLeaseLossesCoveredLoans	-45000	USD
	bku	Provision For Loan And Lease Losses Covered Loans ProvisionForLoanAndLeaseLossesCoveredLoans	406000	USD
	bku	Shareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantmaximumin Dollarsper Share ShareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantmaximuminDollarsperShare	34.04
	bku	Shareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantmaximumin Dollarsper Share ShareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantmaximuminDollarsperShare	34.06
	bku	Shareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantminimumin Dollarsper Share ShareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantminimuminDollarsperShare	31.44
	bku	Shareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantminimumin Dollarsper Share ShareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantminimuminDollarsperShare	31.35
CY2014Q4	bku	Unpaid Principal Balance Of Aci Loans UnpaidPrincipalBalanceOfAciLoans	2600000000	USD
CY2015Q2	bku	Unpaid Principal Balance Of Aci Loans UnpaidPrincipalBalanceOfAciLoans	2300000000	USD
	bku	Unsettled Securities Trades UnsettledSecuritiesTrades	65948000	USD
	bku	Unsettled Securities Trades UnsettledSecuritiesTrades	25249000	USD
	bku	Value At Which Non Accrual Status Commercial Relationships Are Evaluated For Impairment ValueAtWhichNonAccrualStatusCommercialRelationshipsAreEvaluatedForImpairment	750000	USD
CY2015Q2	bku	Value Of Pledged Real Estate Loans With Unpaid Principal Balance ValueOfPledgedRealEstateLoansWithUnpaidPrincipalBalance	7900000000	USD
CY2014Q2	bku	Value Of Unpaid Principal Balance Of Aci Loans Sold ValueOfUnpaidPrincipalBalanceOfACILoansSold	13000000	USD
	bku	Value Of Unpaid Principal Balance Of Aci Loans Sold ValueOfUnpaidPrincipalBalanceOfACILoansSold	29000000	USD
	bku	Weighted Average Life Of Investment Portfolio WeightedAverageLifeOfInvestmentPortfolio	P3Y6M22D
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Period End Date DocumentPeriodEndDate	2015-06-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0001504008
CY2015Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	103471446	shares
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	BankUnited, Inc.
	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2014Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	3104736000	USD
CY2015Q2	invest	Derivative Notional Amount DerivativeNotionalAmount	3376388000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	57480000	USD
CY2014Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	74288000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	46352000	USD
CY2015Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	51134000	USD
CY2014Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1353538000	USD
CY2015Q2	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1394103000	USD
	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	980000	USD
	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	208000	USD
CY2014Q2	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	354000	USD
	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	717000	USD
CY2015Q2	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	642000	USD
	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	827000	USD
CY2014Q2	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	2103000	USD
	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	10566000	USD
CY2015Q2	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	1514000	USD
	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	5552000	USD
CY2014Q4	us-gaap	Assets Assets	19210529000	USD
CY2015Q2	us-gaap	Assets Assets	21401793000	USD
CY2014Q4	us-gaap	Assets Fair Value Disclosure Recurring AssetsFairValueDisclosureRecurring	4615508000	USD
CY2015Q2	us-gaap	Assets Fair Value Disclosure Recurring AssetsFairValueDisclosureRecurring	4837067000	USD
CY2014Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	4585694000	USD
CY2015Q2	us-gaap	Available For Sale Securities AvailableForSaleSecurities	4797700000	USD
CY2014Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	127295000	USD
CY2015Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	123530000	USD
CY2014Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	16091000	USD
CY2015Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	11100000	USD
CY2014Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	4474490000	USD
CY2015Q2	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	4685270000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	10511000	USD
CY2015Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	3275000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	1060759000	USD
CY2015Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	1459977000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	5580000	USD
CY2015Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	7825000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	554501000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	506258000	USD
CY2015Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1123399000	USD
CY2015Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	336578000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	1176355000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	1202951000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	2583970000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	2630865000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	351764000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	368136000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	497286000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	511266000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	75895000	USD
CY2015Q2	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	84482000	USD
CY2014Q2	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	0	USD
	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	1280000	USD
CY2015Q2	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	1128000	USD
	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	3625000	USD
CY2014Q2	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	0	USD
	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	919000	USD
CY2015Q2	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	0	USD
	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	475000	USD
CY2014Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	1000000000	USD
CY2015Q2	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	1000000000	USD
CY2014Q2	us-gaap	Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments	0	USD
	us-gaap	Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments	361000	USD
CY2015Q2	us-gaap	Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments	1128000	USD
	us-gaap	Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments	3150000	USD
CY2015Q2	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1 AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1	62	security
CY2014Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	215065000	USD
CY2015Q2	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	224642000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1659000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1877000	USD
CY2015Q2	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Expected Tax Deductible Amount BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount	10406000	USD
CY2015Q2	us-gaap	Business Combination Acquired Receivables Estimated Uncollectible BusinessCombinationAcquiredReceivablesEstimatedUncollectible	13000000	USD
CY2015Q2	us-gaap	Business Combination Acquired Receivables Gross Contractual Amount BusinessCombinationAcquiredReceivablesGrossContractualAmount	249000000	USD
CY2015Q2	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	277553000	USD
	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	0	USD
	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	277553000	USD
CY2015Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets	270767000	USD
CY2015Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Prepaid Expense And Other Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets	4397000	USD
CY2015Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities	3620000	USD
CY2015Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	267147000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	9035000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	0	USD
CY2014Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases CapitalLeasesNetInvestmentInDirectFinancingLeases	458000000	USD
CY2015Q2	us-gaap	Capital Leases Net Investment In Direct Financing Leases CapitalLeasesNetInvestmentInDirectFinancingLeases	447000000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	252749000	USD
CY2014Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	379150000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	187517000	USD
CY2015Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	164860000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	126401000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-22657000	USD
CY2014Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	46268000	USD
CY2015Q2	us-gaap	Cash And Due From Banks CashAndDueFromBanks	40576000	USD
CY2014Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2015Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2014Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.21
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.42
CY2015Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.21
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.42
CY2014Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2015Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2014Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2015Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2014Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	101656702	shares
CY2015Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	103475912.000	shares
CY2014Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	101656702	shares
CY2015Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	103475912	shares
CY2014Q4	us-gaap	Common Stock Value CommonStockValue	1017000	USD
CY2015Q2	us-gaap	Common Stock Value CommonStockValue	1035000	USD
CY2014Q2	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	3266000	USD
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	6573000	USD
CY2015Q2	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	3345000	USD
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	6816000	USD
CY2014Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	52715000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	120622000	USD
CY2015Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	48343000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	97876000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-18504000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	33124000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	117215000	USD
CY2015Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	83277000	USD
CY2014Q4	us-gaap	Deposits Deposits	13511755000	USD
CY2015Q2	us-gaap	Deposits Deposits	15246691000	USD
CY2014Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	5896007000	USD
CY2015Q2	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	6860411000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	14931000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	19477000	USD
CY2014Q4	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	0	USD
CY2015Q2	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	0	USD
CY2014Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	4143000	USD
CY2015Q2	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	2866000	USD
CY2014Q4	us-gaap	Derivative Asset Fair Value Of Collateral DerivativeAssetFairValueOfCollateral	0	USD
CY2015Q2	us-gaap	Derivative Asset Fair Value Of Collateral DerivativeAssetFairValueOfCollateral	0	USD
CY2014Q4	us-gaap	Derivative Assets DerivativeAssets	0	USD
CY2015Q2	us-gaap	Derivative Assets DerivativeAssets	0	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	4143000	USD
CY2014Q4	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	0	USD
CY2015Q2	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	-1321000	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	4143000	USD
CY2015Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	2866000	USD
CY2015Q2	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	2866000	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	69117000	USD
CY2015Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	62696000	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	69117000	USD
CY2015Q2	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	62696000	USD
CY2014Q2	us-gaap	Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet	0	USD
	us-gaap	Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet	0	USD
CY2015Q2	us-gaap	Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet	0	USD
	us-gaap	Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet	0	USD
CY2014Q2	us-gaap	Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion	6658000	USD
	us-gaap	Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion	13207000	USD
CY2015Q2	us-gaap	Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion	6531000	USD
	us-gaap	Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion	13074000	USD
CY2014Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	0	USD
CY2015Q2	us-gaap	Derivative Liabilities DerivativeLiabilities	1321000	USD
CY2014Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	0	USD
CY2015Q2	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	0	USD
CY2014Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	4143000	USD
CY2015Q2	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	2866000	USD
CY2014Q4	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	64974000	USD
CY2015Q2	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	58509000	USD
	us-gaap	Discontinuation Of Cash Flow Hedge DiscontinuationOfCashFlowHedge	0
	us-gaap	Discontinuation Of Cash Flow Hedge DiscontinuationOfCashFlowHedge	0
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	43916000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	44658000	USD
CY2014Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.46
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.99
CY2015Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.44
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.88
CY2014Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.46
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.99
CY2015Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.43
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.87
CY2014Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.331
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.344
CY2015Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.335
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.341
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y1M17D
CY2015Q2	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	26300000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	980000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	208000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	980000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	208000	USD
CY2014Q4	us-gaap	Fdic Indemnification Asset FDICIndemnificationAsset	974704000	USD
CY2015Q2	us-gaap	Fdic Indemnification Asset FDICIndemnificationAsset	859972000	USD
CY2014Q2	us-gaap	Fdic Indemnification Asset Accretion Of Discount FDICIndemnificationAssetAccretionOfDiscount	15194000	USD
	us-gaap	Fdic Indemnification Asset Accretion Of Discount FDICIndemnificationAssetAccretionOfDiscount	30935000	USD
CY2014	us-gaap	Fdic Indemnification Asset Accretion Of Discount FDICIndemnificationAssetAccretionOfDiscount	69470000	USD
CY2015Q2	us-gaap	Fdic Indemnification Asset Accretion Of Discount FDICIndemnificationAssetAccretionOfDiscount	26460000	USD
	us-gaap	Fdic Indemnification Asset Accretion Of Discount FDICIndemnificationAssetAccretionOfDiscount	48465000	USD
CY2014Q2	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	2311000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	4563000	USD
CY2015Q2	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	3163000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	6081000	USD
CY2014Q4	us-gaap	Federal Funds Sold FederalFundsSold	6674000	USD
CY2015Q2	us-gaap	Federal Funds Sold FederalFundsSold	2213000	USD
CY2014Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	3318559000	USD
CY2015Q2	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	3743697000	USD
CY2014Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	191674000	USD
CY2015Q2	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	203070000	USD
CY2014Q2	us-gaap	Fees And Commissions FeesAndCommissions	4186000	USD
	us-gaap	Fees And Commissions FeesAndCommissions	8191000	USD
CY2015Q2	us-gaap	Fees And Commissions FeesAndCommissions	4492000	USD
	us-gaap	Fees And Commissions FeesAndCommissions	8943000	USD
CY2013Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	69725000	USD
CY2014Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	70028000	USD
CY2014Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	75471000	USD
CY2014Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	95542000	USD
CY2015Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	99836000	USD
CY2015Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	107385000	USD
CY2014Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	0	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	361000	USD
CY2015Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	1128000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	3150000	USD
CY2014Q2	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	-9000	USD
	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	19323000	USD
CY2015Q2	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	8223000	USD
	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	18389000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	2459000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-693000	USD
CY2014Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	10000000	USD
CY2015Q2	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	10000000	USD
CY2014Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	72544000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	158334000	USD
CY2015Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	70167000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	141345000	USD
CY2014Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24001000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	54520000	USD
CY2015Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23530000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	48251000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	70755000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	19159000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1504310000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1734942000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	13434000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	20116000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	5506000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	3433000	USD
CY2014Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	68414000	USD
CY2015Q2	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	78511000	USD
CY2014Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	191733000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	382295000	USD
CY2015Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	212634000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	414516000	USD
CY2014Q2	us-gaap	Interest And Dividend Income Securities Available For Sale InterestAndDividendIncomeSecuritiesAvailableForSale	25741000	USD
	us-gaap	Interest And Dividend Income Securities Available For Sale InterestAndDividendIncomeSecuritiesAvailableForSale	50567000	USD
CY2015Q2	us-gaap	Interest And Dividend Income Securities Available For Sale InterestAndDividendIncomeSecuritiesAvailableForSale	26284000	USD
	us-gaap	Interest And Dividend Income Securities Available For Sale InterestAndDividendIncomeSecuritiesAvailableForSale	54504000	USD
CY2014Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	164184000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	327967000	USD
CY2015Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	184010000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	355389000	USD
CY2014Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	33979000	USD
CY2015Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	30422000	USD
CY2014Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	899696000	USD
CY2015Q2	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	1372116000	USD
CY2014Q2	us-gaap	Interest Expense InterestExpense	25855000	USD
	us-gaap	Interest Expense InterestExpense	49953000	USD
CY2015Q2	us-gaap	Interest Expense InterestExpense	31656000	USD
	us-gaap	Interest Expense InterestExpense	60810000	USD
CY2014Q2	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	8388000	USD
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	16391000	USD
CY2015Q2	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	9801000	USD
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	18951000	USD
CY2014Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	17467000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	33562000	USD
CY2015Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	21855000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	41859000	USD
CY2014Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	158686000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	316747000	USD
CY2015Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	172557000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	337138000	USD
CY2014Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	165878000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	332342000	USD
CY2015Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	180978000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	353706000	USD
	us-gaap	Interest Paid Net InterestPaidNet	46559000	USD
	us-gaap	Interest Paid Net InterestPaidNet	56772000	USD
CY2015Q2	us-gaap	Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet	18500000	USD
CY2014Q4	us-gaap	Interest Rate Derivative Assets At Fair Value InterestRateDerivativeAssetsAtFairValue	29765000	USD
CY2015Q2	us-gaap	Interest Rate Derivative Assets At Fair Value InterestRateDerivativeAssetsAtFairValue	28274000	USD
CY2014Q4	us-gaap	Interest Rate Derivative Liabilities At Fair Value InterestRateDerivativeLiabilitiesAtFairValue	69177000	USD
CY2015Q2	us-gaap	Interest Rate Derivative Liabilities At Fair Value InterestRateDerivativeLiabilitiesAtFairValue	62927000	USD
CY2014Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	49556000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	99005000	USD
CY2015Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	51845000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	101324000	USD
CY2014Q4	us-gaap	Liabilities Liabilities	17157995000	USD
CY2015Q2	us-gaap	Liabilities Liabilities	19255458000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	19210529000	USD
CY2015Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	21401793000	USD
CY2014Q4	us-gaap	Liabilities Fair Value Disclosure Recurring LiabilitiesFairValueDisclosureRecurring	69178000	USD
CY2015Q2	us-gaap	Liabilities Fair Value Disclosure Recurring LiabilitiesFairValueDisclosureRecurring	62941000	USD
CY2014Q4	us-gaap	Loans And Leases Receivable Net Reported Amount Covered And Not Covered LoansAndLeasesReceivableNetReportedAmountCoveredAndNotCovered	12319227000	USD
CY2015Q2	us-gaap	Loans And Leases Receivable Net Reported Amount Covered And Not Covered LoansAndLeasesReceivableNetReportedAmountCoveredAndNotCovered	14219608000	USD
CY2014Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	1399000	USD
CY2015Q2	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	61212000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1755619000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2166110000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1577703000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2265015000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-51515000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	76248000	USD
CY2014Q2	us-gaap	Net Income Loss NetIncomeLoss	48543000	USD
	us-gaap	Net Income Loss NetIncomeLoss	103814000	USD
CY2015Q2	us-gaap	Net Income Loss NetIncomeLoss	46637000	USD
	us-gaap	Net Income Loss NetIncomeLoss	93094000	USD
CY2014Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	46613000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	99737000	USD
CY2015Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	44832000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	89522000	USD
CY2014Q4	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	2714127000	USD
CY2015Q2	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	2679779000	USD
CY2014Q2	us-gaap	Noninterest Expense NoninterestExpense	106620000	USD
	us-gaap	Noninterest Expense NoninterestExpense	209081000	USD
CY2015Q2	us-gaap	Noninterest Expense NoninterestExpense	123448000	USD
	us-gaap	Noninterest Expense NoninterestExpense	237592000	USD
CY2014Q2	us-gaap	Noninterest Income NoninterestIncome	20478000	USD
	us-gaap	Noninterest Income NoninterestIncome	50668000	USD
CY2015Q2	us-gaap	Noninterest Income NoninterestIncome	21058000	USD
	us-gaap	Noninterest Income NoninterestIncome	41799000	USD
CY2014Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	4223000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	9559000	USD
CY2015Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	3199000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	5468000	USD
CY2014Q2	us-gaap	Occupancy Net OccupancyNet	17496000	USD
	us-gaap	Occupancy Net OccupancyNet	34463000	USD
CY2015Q2	us-gaap	Occupancy Net OccupancyNet	18934000	USD
	us-gaap	Occupancy Net OccupancyNet	37104000	USD
CY2014Q2	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	4692000	USD
	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	8563000	USD
CY2015Q2	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	7044000	USD
	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	13281000	USD
CY2014Q4	us-gaap	Other Assets OtherAssets	211282000	USD
CY2015Q2	us-gaap	Other Assets OtherAssets	271274000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	13052000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	34526000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-19902000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	1225000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	8022000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	21211000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-11825000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-61000	USD
CY2014Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	5030000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	13315000	USD
CY2015Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-8077000	USD

bku

Gain Lossoncovered Ore Onet

GainLossoncoveredOREOnet

2589000

USD

dei

Current Fiscal Year End Date

CurrentFiscalYearEndDate

--12-31

dei

Document Fiscal Period Focus

DocumentFiscalPeriodFocus

Q2

dei

Document Fiscal Year Focus

DocumentFiscalYearFocus

2015

bku

Amortization Accretion Of Discounts And Premiums

AmortizationAccretionOfDiscountsAndPremiums

138373000

USD

bku

Amortization Accretion Of Discounts And Premiums

AmortizationAccretionOfDiscountsAndPremiums

83758000

USD

bku

Amountsreclassifiedfrom Aoc Iintoearningsasaresultofdiscontinuationofcashflowhedgesorearlyextinguishmentofdebt

AmountsreclassifiedfromAOCIintoearningsasaresultofdiscontinuationofcashflowhedgesorearlyextinguishmentofdebt

0

USD

bku

Amountsreclassifiedfrom Aoc Iintoearningsasaresultofdiscontinuationofcashflowhedgesorearlyextinguishmentofdebt

AmountsreclassifiedfromAOCIintoearningsasaresultofdiscontinuationofcashflowhedgesorearlyextinguishmentofdebt

0

USD

CY2015Q2

bku

Availablefor Sale Securities Pledgedas Collateralfor Interest Rate Swaps

AvailableforSaleSecuritiesPledgedasCollateralforInterestRateSwaps

47000000

USD

CY2015Q2

bku

Availableforsalesecurities Gross Unrealized Loss Considered Insignificantfor Otti Analysis

AvailableforsalesecuritiesGrossUnrealizedLossConsideredInsignificantforOTTIAnalysis

120000

USD

CY2015Q2

bku

Branches Located In New York

BranchesLocatedInNewYork

6

banking_center

CY2015Q2

bku

Cash Pledgedas Collateralfor Interest Rate Swaps

CashPledgedasCollateralforInterestRateSwaps

30000000

USD

bku

Decrease Increase In Fdic Indemnification Asset Claims Filed Investing Activities

DecreaseIncreaseInFDICIndemnificationAssetClaimsFiledInvestingActivities

66704000

USD

CY2014

bku

Decrease Increase In Fdic Indemnification Asset Claims Filed Investing Activities

DecreaseIncreaseInFDICIndemnificationAssetClaimsFiledInvestingActivities

114916000

USD

bku

Decrease Increase In Fdic Indemnification Asset Claims Filed Investing Activities

DecreaseIncreaseInFDICIndemnificationAssetClaimsFiledInvestingActivities

29079000

USD

CY2014Q4

bku

Derivative Asset Liability Collateral Offset

DerivativeAssetLiabilityCollateralOffset

0

USD

CY2015Q2

bku

Derivative Asset Liability Collateral Offset

DerivativeAssetLiabilityCollateralOffset

0

USD

CY2014Q4

bku

Derivative Asset Liability Fair Value Amount Not Offset Against Collateral

DerivativeAssetLiabilityFairValueAmountNotOffsetAgainstCollateral

-64974000

USD

CY2015Q2

bku

Derivative Asset Liability Fair Value Amount Not Offset Against Collateral

DerivativeAssetLiabilityFairValueAmountNotOffsetAgainstCollateral

-59830000

USD

CY2014Q4

bku

Derivative Asset Liability Fair Value Gross Liability Asset

DerivativeAssetLiabilityFairValueGrossLiabilityAsset

0

USD

CY2015Q2

bku

Derivative Asset Liability Fair Value Gross Liability Asset

DerivativeAssetLiabilityFairValueGrossLiabilityAsset

0

USD

CY2014Q4

bku

Derivative Asset Liability Fair Value Of Collateral

DerivativeAssetLiabilityFairValueOfCollateral

-64974000

USD

CY2015Q2

bku

Derivative Asset Liability Fair Value Of Collateral

DerivativeAssetLiabilityFairValueOfCollateral

-58509000

USD

bku

Disbursementofloanproceedsfromescrow

52500000

USD

bku

Disbursementofloanproceedsfromescrow

0

USD

bku

Dividends Declared And Payable

DividendsDeclaredAndPayable

21958000

USD

bku

Dividends Declared And Payable

DividendsDeclaredAndPayable

22338000

USD

CY2014Q4

bku

Due From Federal Reserve Bank

DueFromFederalReserveBank

100596000

USD

CY2015Q2

bku

Due From Federal Reserve Bank

DueFromFederalReserveBank

91649000

USD

bku

Effective Duration Of Investment Portfolio

EffectiveDurationOfInvestmentPortfolio

P1Y5M11D

CY2013Q4

bku

Fdic Indemnification Assetand Liabilitynet

FDICIndemnificationAssetandLiabilitynet

1205117000

USD

CY2014Q4

bku

Fdic Indemnification Assetand Liabilitynet

FDICIndemnificationAssetandLiabilitynet

974335000

USD

CY2015Q2

bku

Fdic Indemnification Assetand Liabilitynet

FDICIndemnificationAssetandLiabilitynet

859755000

USD

CY2015Q2

bku

Fdic Indemnification Liability

FDICIndemnificationLiability

217000

USD

bku

Fair Value Assets Level Transfers Amount

FairValueAssetsLevelTransfersAmount

0

USD

bku

Fair Value Assets Level Transfers Amount

FairValueAssetsLevelTransfersAmount

0

USD

CY2014Q2

bku

Federal Deposit Insurance Corporation Indemnification Reimbursement Of Costs Of Resolution Of Covered Assets

FederalDepositInsuranceCorporationIndemnificationReimbursementOfCostsOfResolutionOfCoveredAssets

1112000

USD

bku

Federal Deposit Insurance Corporation Indemnification Reimbursement Of Costs Of Resolution Of Covered Assets

FederalDepositInsuranceCorporationIndemnificationReimbursementOfCostsOfResolutionOfCoveredAssets

2240000

USD

CY2015Q2

bku

Federal Deposit Insurance Corporation Indemnification Reimbursement Of Costs Of Resolution Of Covered Assets

FederalDepositInsuranceCorporationIndemnificationReimbursementOfCostsOfResolutionOfCoveredAssets

0

USD

bku

Federal Deposit Insurance Corporation Indemnification Reimbursement Of Costs Of Resolution Of Covered Assets

FederalDepositInsuranceCorporationIndemnificationReimbursementOfCostsOfResolutionOfCoveredAssets

707000

USD

bku

Financing Receivable Credit Quality Value At Which Relationships Are Reeavluated At Least Annually

FinancingReceivableCreditQualityValueAtWhichRelationshipsAreReeavluatedAtLeastAnnually

1000000

USD

CY2014Q2

bku

Gain Loss Associated With Covered Assets

GainLossAssociatedWithCoveredAssets

10689000

USD

bku

Gain Loss Associated With Covered Assets

GainLossAssociatedWithCoveredAssets

45055000

USD

CY2015Q2

bku

Gain Loss Associated With Covered Assets

GainLossAssociatedWithCoveredAssets

20911000

USD

bku

Gain Loss Associated With Covered Assets

GainLossAssociatedWithCoveredAssets

46100000

USD

CY2014Q2

bku

Gain Loss On Indemnification Asset

GainLossOnIndemnificationAsset

-5896000

USD

bku

Gain Loss On Indemnification Asset

GainLossOnIndemnificationAsset

-22800000

USD

CY2014

bku

Gain Loss On Indemnification Asset

GainLossOnIndemnificationAsset

-46396000

USD

CY2015Q2

bku

Gain Loss On Indemnification Asset

GainLossOnIndemnificationAsset

-16771000

USD

bku

Gain Loss On Indemnification Asset

GainLossOnIndemnificationAsset

-37036000

USD

CY2014Q2

bku

Gain Lossoncovered Ore Onet

GainLossoncoveredOREOnet

-218000

USD

CY2015Q2

bku

Gain Lossoncovered Ore Onet

GainLossoncoveredOREOnet

-222000

USD

bku

Gain Lossoncovered Ore Onet

GainLossoncoveredOREOnet

-693000

USD

CY2014Q2

bku

Gain Lossonsaleofloansnetlossrelatedtocoveredloans

GainLossonsaleofloansnetlossrelatedtocoveredloans

-366000

USD

bku

Gain Lossonsaleofloansnetlossrelatedtocoveredloans

GainLossonsaleofloansnetlossrelatedtocoveredloans

18928000

USD

CY2015Q2

bku

Gain Lossonsaleofloansnetlossrelatedtocoveredloans

GainLossonsaleofloansnetlossrelatedtocoveredloans

7417000

USD

bku

Gain Lossonsaleofloansnetlossrelatedtocoveredloans

GainLossonsaleofloansnetlossrelatedtocoveredloans

17423000

USD

CY2014Q4

bku

Gross Amounts Recognized Derivative Assets And Liabilities

GrossAmountsRecognizedDerivativeAssetsAndLiabilities

-64974000

USD

CY2015Q2

bku

Gross Amounts Recognized Derivative Assets And Liabilities

GrossAmountsRecognizedDerivativeAssetsAndLiabilities

-59830000

USD

CY2014Q2

bku

Income Loss From Resolution Of Covered Assets

IncomeLossFromResolutionOfCoveredAssets

12170000

USD

bku

Income Loss From Resolution Of Covered Assets

IncomeLossFromResolutionOfCoveredAssets

25231000

USD

CY2015Q2

bku

Income Loss From Resolution Of Covered Assets

IncomeLossFromResolutionOfCoveredAssets

13743000

USD

bku

Income Loss From Resolution Of Covered Assets

IncomeLossFromResolutionOfCoveredAssets

28897000

USD

bku

Lifeof Certificatesof Deposit Hedged

LifeofCertificatesofDepositHedged

P1Y

CY2014Q4

bku

Loans And Leases Receivable Allowance Covered And Not Covered

LoansAndLeasesReceivableAllowanceCoveredAndNotCovered

95542000

USD

CY2015Q2

bku

Loans And Leases Receivable Allowance Covered And Not Covered

LoansAndLeasesReceivableAllowanceCoveredAndNotCovered

107385000

USD

CY2014Q4

bku

Loans And Leases Receivable Deferred Income Covered And Not Covered

LoansAndLeasesReceivableDeferredIncomeCoveredAndNotCovered

-36502000

USD

CY2015Q2

bku

Loans And Leases Receivable Deferred Income Covered And Not Covered

LoansAndLeasesReceivableDeferredIncomeCoveredAndNotCovered

-37195000

USD

CY2014Q4

bku

Loans And Leases Receivable Net Of Deferred Income Covered

LoansAndLeasesReceivableNetOfDeferredIncomeCovered

1043864000

USD

CY2015Q2

bku

Loans And Leases Receivable Net Of Deferred Income Covered

LoansAndLeasesReceivableNetOfDeferredIncomeCovered

916071000

USD

CY2014Q4

bku

Loans And Leases Receivable Net Of Deferred Income Covered And Not Covered

LoansAndLeasesReceivableNetOfDeferredIncomeCoveredAndNotCovered

12414769000

USD

CY2015Q2

bku

Loans And Leases Receivable Net Of Deferred Income Covered And Not Covered

LoansAndLeasesReceivableNetOfDeferredIncomeCoveredAndNotCovered

14326993000

USD

CY2014Q4

bku

Loansand Leases Receivable Gross Coveredand Non Covered

LoansandLeasesReceivableGrossCoveredandNonCovered

12378267000

USD

CY2015Q2

bku

Loansand Leases Receivable Gross Coveredand Non Covered

LoansandLeasesReceivableGrossCoveredandNonCovered

14289798000

USD

CY2009Q2

bku

Maximum Amount Fdic Will Reimburse

MaximumAmountFDICWillReimburse

4000000000.0

USD

bku

Mortgage Loan Commitment Time Period Maximum

MortgageLoanCommitmentTimePeriodMaximum

P75D

bku

Mortgage Loan Commitment Time Period Minimum

MortgageLoanCommitmentTimePeriodMinimum

P30D

CY2014Q2

bku

Net Income Avaialble To Participating Common Shareholders

NetIncomeAvaialbleToParticipatingCommonShareholders

46609000

USD

bku

Net Income Avaialble To Participating Common Shareholders

NetIncomeAvaialbleToParticipatingCommonShareholders

99728000

USD

CY2015Q2

bku

Net Income Avaialble To Participating Common Shareholders

NetIncomeAvaialbleToParticipatingCommonShareholders

44827000

USD

bku

Net Income Avaialble To Participating Common Shareholders

NetIncomeAvaialbleToParticipatingCommonShareholders

89512000

USD

CY2015Q2

bku

Number Of Branches

NumberOfBranches

99

branch

CY2015Q2

bku

Number Of Geographic Areas Branches Located In

NumberOfGeographicAreasBranchesLocatedIn

15

county

CY2014Q4

bku

Number Of Held To Maturity Securities

NumberOfHeldToMaturitySecurities

1

security

CY2015Q2

bku

Number Of Held To Maturity Securities

NumberOfHeldToMaturitySecurities

1

security

CY2009Q2

bku

Number Of Loss Sharing Agreements

NumberOfLossSharingAgreements

2

Agreement

CY2015Q2

bku

Number Of Securities Amount Of Impairment Insignificant

NumberOfSecuritiesAmountOfImpairmentInsignificant

16

security

bku

Number Of Securities Determined To Be Other Than Temporarily Impaired During The Period

NumberOfSecuritiesDeterminedToBeOtherThanTemporarilyImpairedDuringThePeriod

0

security

bku

Number Of Securities Determined To Be Other Than Temporarily Impaired During The Period

NumberOfSecuritiesDeterminedToBeOtherThanTemporarilyImpairedDuringThePeriod

0

security

bku

Number Of Subsidiaries

NumberOfSubsidiaries

1

subsidiary

CY2014Q2

bku

Other Comprehensive Income Loss Reclassified To Interest Expense Adjustment For Sale Of Securities Included In Net Income Before Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax

1412000

USD

bku

Other Comprehensive Income Loss Reclassified To Interest Expense Adjustment For Sale Of Securities Included In Net Income Before Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax

2807000

USD

CY2015Q2

bku

Other Comprehensive Income Loss Reclassified To Interest Expense Adjustment For Sale Of Securities Included In Net Income Before Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax

1433000

USD

bku

Other Comprehensive Income Loss Reclassified To Interest Expense Adjustment For Sale Of Securities Included In Net Income Before Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax

2853000

USD

CY2014Q2

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Before Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax

5246000

USD

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Before Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax

10400000

USD

CY2015Q2

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Before Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax

5098000

USD

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Before Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax

10221000

USD

CY2014Q2

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax

3222000

USD

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax

6388000

USD

CY2015Q2

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax

3037000

USD

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax

6184000

USD

CY2014Q2

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Tax Effect

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTaxEffect

2024000

USD

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Tax Effect

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTaxEffect

4012000

USD

CY2015Q2

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Tax Effect

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTaxEffect

2061000

USD

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Borrowings Adjustment For Sale Of Securities Included In Net Income Tax Effect

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnBorrowingsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTaxEffect

4037000

USD

CY2014Q2

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax

867000

USD

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax

1724000

USD

CY2015Q2

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax

854000

USD

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax

1726000

USD

CY2014Q2

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax

545000

USD

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax

1083000

USD

CY2015Q2

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax

579000

USD

bku

Other Comprehensive Income Loss Reclassified To Interest Expense On Deposits Adjustment For Sale Of Securities Included In Net Income Tax

OtherComprehensiveIncomeLossReclassifiedToInterestExpenseOnDepositsAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax

1127000

USD

CY2014Q2

bku

Otherrealestateownedexpenseincomenet

1726000

USD

bku

Otherrealestateownedexpenseincomenet

29000

USD

CY2015Q2

bku

Otherrealestateownedexpenseincomenet

1053000

USD

bku

Otherrealestateownedexpenseincomenet

2277000

USD

CY2009Q2

bku

Percent Fdic Will Reimburse For Losses

PercentFDICWillReimburseForLosses

0.8

CY2009Q2

bku

Percent Of Losses In Excess Of Maximum Amount Fdic Will Reimburse

PercentOfLossesInExcessOfMaximumAmountFDICWillReimburse

0.95

CY2014Q4

bku

Percent Of Total Loans

PercentOfTotalLoans

1

CY2015Q2

bku

Percent Of Total Loans

PercentOfTotalLoans

1

CY2014Q2

bku

Provision For Covered Loans And Unfunded Commitments

ProvisionForCoveredLoansAndUnfundedCommitments

897000

USD

bku

Provision For Covered Loans And Unfunded Commitments

ProvisionForCoveredLoansAndUnfundedCommitments

1693000

USD

CY2015Q2

bku

Provision For Covered Loans And Unfunded Commitments

ProvisionForCoveredLoansAndUnfundedCommitments

27000

USD

bku

Provision For Covered Loans And Unfunded Commitments

ProvisionForCoveredLoansAndUnfundedCommitments

-473000

USD

CY2015Q2

bku

Provision For Covered Unfunded Commitments

ProvisionForCoveredUnfundedCommitments

18000

USD

bku

Provision For Covered Unfunded Commitments

ProvisionForCoveredUnfundedCommitments

67000

USD

CY2014Q2

bku

Provision For Loan And Lease Losses Covered Loans

ProvisionForLoanAndLeaseLossesCoveredLoans

-897000

USD

bku

Provision For Loan And Lease Losses Covered Loans

ProvisionForLoanAndLeaseLossesCoveredLoans

-1693000

USD

CY2015Q2

bku

Provision For Loan And Lease Losses Covered Loans

ProvisionForLoanAndLeaseLossesCoveredLoans

-45000

USD

bku

Provision For Loan And Lease Losses Covered Loans

ProvisionForLoanAndLeaseLossesCoveredLoans

406000

USD

bku

Shareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantmaximumin Dollarsper Share

ShareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantmaximuminDollarsperShare

34.04

bku

Shareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantmaximumin Dollarsper Share

ShareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantmaximuminDollarsperShare

34.06

bku

Shareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantminimumin Dollarsper Share

ShareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantminimuminDollarsperShare

31.44

bku

Shareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantminimumin Dollarsper Share

ShareawardsgrantedvaluedatclosingpriceofcommonstockondateofgrantminimuminDollarsperShare

31.35

CY2014Q4

bku

Unpaid Principal Balance Of Aci Loans

UnpaidPrincipalBalanceOfAciLoans

2600000000

USD

CY2015Q2

bku

Unpaid Principal Balance Of Aci Loans

UnpaidPrincipalBalanceOfAciLoans

2300000000

USD

bku

Unsettled Securities Trades

UnsettledSecuritiesTrades

65948000

USD

bku

Unsettled Securities Trades

UnsettledSecuritiesTrades

25249000

USD

bku

Value At Which Non Accrual Status Commercial Relationships Are Evaluated For Impairment

ValueAtWhichNonAccrualStatusCommercialRelationshipsAreEvaluatedForImpairment

750000

USD

CY2015Q2

bku

Value Of Pledged Real Estate Loans With Unpaid Principal Balance

ValueOfPledgedRealEstateLoansWithUnpaidPrincipalBalance

7900000000

USD

CY2014Q2

bku

Value Of Unpaid Principal Balance Of Aci Loans Sold

ValueOfUnpaidPrincipalBalanceOfACILoansSold

13000000

USD

bku

Value Of Unpaid Principal Balance Of Aci Loans Sold

ValueOfUnpaidPrincipalBalanceOfACILoansSold

29000000

USD

bku

Weighted Average Life Of Investment Portfolio

WeightedAverageLifeOfInvestmentPortfolio

P3Y6M22D

dei

Amendment Flag

AmendmentFlag

false

dei

Document Period End Date

DocumentPeriodEndDate

2015-06-30

dei

Document Type

DocumentType

10-Q

dei

Entity Central Index Key

EntityCentralIndexKey

0001504008

CY2015Q3

dei

Entity Common Stock Shares Outstanding

EntityCommonStockSharesOutstanding

103471446

shares

dei

Entity Current Reporting Status

EntityCurrentReportingStatus

Yes

dei

Entity Filer Category

EntityFilerCategory

Large Accelerated Filer

dei

Entity Registrant Name

EntityRegistrantName

BankUnited, Inc.

dei

Entity Voluntary Filers

EntityVoluntaryFilers

No

dei

Entity Well Known Seasoned Issuer

EntityWellKnownSeasonedIssuer

Yes

CY2014Q4

invest

Derivative Notional Amount

DerivativeNotionalAmount

3104736000

USD

CY2015Q2

invest

Derivative Notional Amount

DerivativeNotionalAmount

3376388000

USD

CY2013Q4

us-gaap

Accumulated Other Comprehensive Income Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossNetOfTax

57480000

USD

CY2014Q2

us-gaap

Accumulated Other Comprehensive Income Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossNetOfTax

74288000

USD

CY2014Q4

us-gaap

Accumulated Other Comprehensive Income Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossNetOfTax

46352000

USD

CY2015Q2

us-gaap

Accumulated Other Comprehensive Income Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossNetOfTax

51134000

USD

CY2014Q4

us-gaap

Additional Paid In Capital

AdditionalPaidInCapital

1353538000

USD

CY2015Q2

us-gaap

Additional Paid In Capital

AdditionalPaidInCapital

1394103000

USD

us-gaap

Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation

AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation

980000

USD

us-gaap

Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation

AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation

208000

USD

CY2014Q2

us-gaap

Allowance For Loan And Lease Loss Recovery Of Bad Debts

AllowanceForLoanAndLeaseLossRecoveryOfBadDebts

354000

USD

us-gaap

Allowance For Loan And Lease Loss Recovery Of Bad Debts

AllowanceForLoanAndLeaseLossRecoveryOfBadDebts

717000

USD

CY2015Q2

us-gaap

Allowance For Loan And Lease Loss Recovery Of Bad Debts

AllowanceForLoanAndLeaseLossRecoveryOfBadDebts

642000

USD

us-gaap

Allowance For Loan And Lease Loss Recovery Of Bad Debts

AllowanceForLoanAndLeaseLossRecoveryOfBadDebts

827000

USD

CY2014Q2

us-gaap

Allowance For Loan And Lease Losses Write Offs

AllowanceForLoanAndLeaseLossesWriteOffs

2103000

USD

us-gaap

Allowance For Loan And Lease Losses Write Offs

AllowanceForLoanAndLeaseLossesWriteOffs

10566000

USD

CY2015Q2

us-gaap

Allowance For Loan And Lease Losses Write Offs

AllowanceForLoanAndLeaseLossesWriteOffs

1514000

USD

us-gaap

Allowance For Loan And Lease Losses Write Offs

AllowanceForLoanAndLeaseLossesWriteOffs

5552000

USD

CY2014Q4

us-gaap

Assets

19210529000

USD

CY2015Q2

us-gaap

Assets

21401793000

USD

CY2014Q4

us-gaap

Assets Fair Value Disclosure Recurring

AssetsFairValueDisclosureRecurring

4615508000

USD

CY2015Q2

us-gaap

Assets Fair Value Disclosure Recurring

AssetsFairValueDisclosureRecurring

4837067000

USD

CY2014Q4

us-gaap

Available For Sale Securities

AvailableForSaleSecurities

4585694000

USD

CY2015Q2

us-gaap

Available For Sale Securities

AvailableForSaleSecurities

4797700000

USD

CY2014Q4

us-gaap

Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax

AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

127295000

USD

CY2015Q2

us-gaap

Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax

AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

123530000

USD

CY2014Q4

us-gaap

Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax

AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

16091000

USD

CY2015Q2

us-gaap

Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax

AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

11100000

USD

CY2014Q4

us-gaap

Available For Sale Securities Amortized Cost

AvailableForSaleSecuritiesAmortizedCost

4474490000

USD

CY2015Q2

us-gaap

Available For Sale Securities Amortized Cost

AvailableForSaleSecuritiesAmortizedCost

4685270000

USD

CY2014Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss

AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss

10511000

USD

CY2015Q2

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss

AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss

3275000

USD

CY2014Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue

1060759000

USD

CY2015Q2

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue

1459977000

USD

CY2014Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss

5580000

USD

CY2015Q2

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss

7825000

USD

CY2014Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue

554501000

USD

CY2014Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

506258000

USD

CY2015Q2

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

1123399000

USD

CY2015Q2

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue

336578000

USD

CY2015Q2

us-gaap

Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost

1176355000

USD

CY2015Q2

us-gaap

Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value

AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue

1202951000

USD

CY2015Q2

us-gaap

Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost

2583970000

USD

CY2015Q2

us-gaap

Available For Sale Securities Debt Maturities After One Through Five Years Fair Value

AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue

2630865000

USD

CY2015Q2

us-gaap

Available For Sale Securities Debt Maturities After Ten Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost

351764000

USD

CY2015Q2

us-gaap

Available For Sale Securities Debt Maturities After Ten Years Fair Value

AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue

368136000

USD

CY2015Q2

us-gaap

Available For Sale Securities Debt Maturities Within One Year Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost

497286000

USD

CY2015Q2

us-gaap

Available For Sale Securities Debt Maturities Within One Year Fair Value

AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue

511266000

USD

CY2015Q2

us-gaap

Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost

75895000

USD

CY2015Q2

us-gaap

Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value

AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue

84482000

USD

CY2014Q2

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

0

USD

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

1280000

USD

CY2015Q2

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

1128000

USD

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

3625000

USD

CY2014Q2

us-gaap

Available For Sale Securities Gross Realized Losses

AvailableForSaleSecuritiesGrossRealizedLosses

0

USD

us-gaap

Available For Sale Securities Gross Realized Losses

AvailableForSaleSecuritiesGrossRealizedLosses

919000

USD

CY2015Q2

us-gaap

Available For Sale Securities Gross Realized Losses

AvailableForSaleSecuritiesGrossRealizedLosses

0

USD

us-gaap

Available For Sale Securities Gross Realized Losses

AvailableForSaleSecuritiesGrossRealizedLosses

475000

USD

CY2014Q4

us-gaap

Available For Sale Securities Pledged As Collateral

AvailableForSaleSecuritiesPledgedAsCollateral

1000000000

USD

CY2015Q2

us-gaap

Available For Sale Securities Pledged As Collateral

AvailableForSaleSecuritiesPledgedAsCollateral

1000000000

USD

CY2014Q2

us-gaap

Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments

AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments

0

USD

us-gaap

Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments

AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments

361000

USD

CY2015Q2

us-gaap

Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments

AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments

1128000

USD

us-gaap

Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments

AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments

3150000

USD

CY2015Q2

us-gaap

Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1

AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1

62

security

CY2014Q4

us-gaap

Bank Owned Life Insurance

BankOwnedLifeInsurance

215065000

USD

CY2015Q2

us-gaap

Bank Owned Life Insurance

BankOwnedLifeInsurance

224642000

USD

us-gaap

Bank Owned Life Insurance Income

BankOwnedLifeInsuranceIncome

1659000

USD

us-gaap

Bank Owned Life Insurance Income

BankOwnedLifeInsuranceIncome

1877000

USD

CY2015Q2

us-gaap

Business Acquisition Purchase Price Allocation Goodwill Expected Tax Deductible Amount

BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount

10406000

USD

CY2015Q2

us-gaap

Business Combination Acquired Receivables Estimated Uncollectible

BusinessCombinationAcquiredReceivablesEstimatedUncollectible

13000000

USD

CY2015Q2

us-gaap

Business Combination Acquired Receivables Gross Contractual Amount

BusinessCombinationAcquiredReceivablesGrossContractualAmount

249000000

USD

CY2015Q2

us-gaap

Business Combination Consideration Transferred1

BusinessCombinationConsiderationTransferred1

277553000

USD

us-gaap

Business Combination Consideration Transferred1

BusinessCombinationConsiderationTransferred1

0

USD

us-gaap

Business Combination Consideration Transferred1

BusinessCombinationConsiderationTransferred1

277553000

USD

CY2015Q2

us-gaap

Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets

BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets

270767000

USD

CY2015Q2

us-gaap

Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Prepaid Expense And Other Assets

BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets

4397000

USD

CY2015Q2

us-gaap

Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities

BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities

3620000

USD

CY2015Q2

us-gaap

Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net

BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

267147000

USD

us-gaap

Capital Expenditures Incurred But Not Yet Paid

CapitalExpendituresIncurredButNotYetPaid

9035000

USD

us-gaap

Capital Expenditures Incurred But Not Yet Paid

CapitalExpendituresIncurredButNotYetPaid

0

USD

CY2014Q4

us-gaap

Capital Leases Net Investment In Direct Financing Leases

CapitalLeasesNetInvestmentInDirectFinancingLeases

458000000

USD

CY2015Q2

us-gaap

Capital Leases Net Investment In Direct Financing Leases

CapitalLeasesNetInvestmentInDirectFinancingLeases

447000000

USD

CY2013Q4

us-gaap

Cash And Cash Equivalents At Carrying Value

CashAndCashEquivalentsAtCarryingValue

252749000

USD

CY2014Q2

us-gaap

Cash And Cash Equivalents At Carrying Value

CashAndCashEquivalentsAtCarryingValue

379150000

USD

CY2014Q4

us-gaap

Cash And Cash Equivalents At Carrying Value

CashAndCashEquivalentsAtCarryingValue

187517000

USD

CY2015Q2

us-gaap

Cash And Cash Equivalents At Carrying Value

CashAndCashEquivalentsAtCarryingValue

164860000

USD

us-gaap

Cash And Cash Equivalents Period Increase Decrease

CashAndCashEquivalentsPeriodIncreaseDecrease

126401000

USD

us-gaap

Cash And Cash Equivalents Period Increase Decrease

CashAndCashEquivalentsPeriodIncreaseDecrease

-22657000

USD

CY2014Q4

us-gaap

Cash And Due From Banks

CashAndDueFromBanks

46268000

USD

CY2015Q2

us-gaap

Cash And Due From Banks

CashAndDueFromBanks

40576000

USD

CY2014Q4

us-gaap

Commitments And Contingencies

CommitmentsAndContingencies

USD

CY2015Q2

us-gaap

Commitments And Contingencies

CommitmentsAndContingencies

USD

CY2014Q2

us-gaap

Common Stock Dividends Per Share Declared

CommonStockDividendsPerShareDeclared

0.21

us-gaap

Common Stock Dividends Per Share Declared

CommonStockDividendsPerShareDeclared

0.42

CY2015Q2

us-gaap

Common Stock Dividends Per Share Declared

CommonStockDividendsPerShareDeclared

0.21

us-gaap

Common Stock Dividends Per Share Declared

CommonStockDividendsPerShareDeclared

0.42

CY2014Q4

us-gaap

Common Stock Par Or Stated Value Per Share

CommonStockParOrStatedValuePerShare

0.01

CY2015Q2

us-gaap

Common Stock Par Or Stated Value Per Share

CommonStockParOrStatedValuePerShare

0.01

CY2014Q4

us-gaap

Common Stock Shares Authorized

CommonStockSharesAuthorized

400000000

shares

CY2015Q2

us-gaap

Common Stock Shares Authorized

CommonStockSharesAuthorized

400000000

shares

CY2014Q4

us-gaap

Common Stock Shares Issued

CommonStockSharesIssued

101656702

shares

CY2015Q2

us-gaap

Common Stock Shares Issued

CommonStockSharesIssued

103475912.000

shares

CY2014Q4

us-gaap

Common Stock Shares Outstanding

CommonStockSharesOutstanding

101656702

shares

CY2015Q2

us-gaap

Common Stock Shares Outstanding

CommonStockSharesOutstanding

103475912

shares

CY2014Q4

us-gaap

Common Stock Value

CommonStockValue

1017000

USD

CY2015Q2

us-gaap

Common Stock Value

CommonStockValue

1035000

USD

CY2014Q2

us-gaap

Communications And Information Technology

CommunicationsAndInformationTechnology

3266000

USD

us-gaap

Communications And Information Technology

CommunicationsAndInformationTechnology

6573000

USD

CY2015Q2

us-gaap

Communications And Information Technology

CommunicationsAndInformationTechnology

3345000

USD

us-gaap

Communications And Information Technology

CommunicationsAndInformationTechnology

6816000

USD

CY2014Q2

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

52715000

USD

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

120622000

USD

CY2015Q2

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

48343000

USD

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

97876000

USD

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

-18504000

USD

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

33124000

USD

CY2014Q4

us-gaap

Deferred Tax Assets Net

DeferredTaxAssetsNet

117215000

USD

CY2015Q2

us-gaap

Deferred Tax Assets Net

DeferredTaxAssetsNet

83277000

USD

CY2014Q4

us-gaap

Deposits

13511755000

USD

CY2015Q2

us-gaap

Deposits

15246691000

USD

CY2014Q4

us-gaap

Deposits Savings Deposits

DepositsSavingsDeposits

5896007000

USD

CY2015Q2

us-gaap

Deposits Savings Deposits

DepositsSavingsDeposits

6860411000

USD

us-gaap

Depreciation Amortization And Accretion Net

DepreciationAmortizationAndAccretionNet

14931000

USD

us-gaap

Depreciation Amortization And Accretion Net

DepreciationAmortizationAndAccretionNet

19477000

USD

CY2014Q4

us-gaap

Derivative Asset Collateral Obligation To Return Cash Offset

DerivativeAssetCollateralObligationToReturnCashOffset

0

USD

CY2015Q2

us-gaap

Derivative Asset Collateral Obligation To Return Cash Offset

DerivativeAssetCollateralObligationToReturnCashOffset

0

USD

CY2014Q4

us-gaap

Derivative Asset Fair Value Gross Liability

DerivativeAssetFairValueGrossLiability

4143000

USD

CY2015Q2

us-gaap

Derivative Asset Fair Value Gross Liability

DerivativeAssetFairValueGrossLiability

2866000

USD

CY2014Q4

us-gaap

Derivative Asset Fair Value Of Collateral

DerivativeAssetFairValueOfCollateral

0

USD

CY2015Q2

us-gaap

Derivative Asset Fair Value Of Collateral

DerivativeAssetFairValueOfCollateral

0

USD

CY2014Q4

us-gaap

Derivative Assets

DerivativeAssets

0

USD

CY2015Q2

us-gaap

Derivative Assets

DerivativeAssets

0

USD

CY2014Q4

us-gaap

Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral

DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral

4143000

USD

CY2014Q4

us-gaap

Derivative Assets Liabilities At Fair Value Net

DerivativeAssetsLiabilitiesAtFairValueNet

0

USD

CY2015Q2

us-gaap

Derivative Assets Liabilities At Fair Value Net

DerivativeAssetsLiabilitiesAtFairValueNet

-1321000

USD

CY2014Q4

us-gaap

Derivative Fair Value Of Derivative Asset

DerivativeFairValueOfDerivativeAsset

4143000

USD

CY2015Q2

us-gaap

Derivative Fair Value Of Derivative Asset

DerivativeFairValueOfDerivativeAsset

2866000

USD

CY2015Q2

us-gaap

Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral

DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral

2866000

USD

CY2014Q4

us-gaap

Derivative Fair Value Of Derivative Liability

DerivativeFairValueOfDerivativeLiability

69117000

USD

CY2015Q2

us-gaap

Derivative Fair Value Of Derivative Liability

DerivativeFairValueOfDerivativeLiability

62696000

USD

CY2014Q4

us-gaap

Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral

DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral

69117000

USD

CY2015Q2

us-gaap

Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral

DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral

62696000

USD

CY2014Q2

us-gaap

Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net

DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet

0

USD

us-gaap

Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net

DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet

0

USD

CY2015Q2

us-gaap

Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net

DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet

0

USD

us-gaap

Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net

DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet

0

USD

CY2014Q2

us-gaap

Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion

DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion

6658000

USD

us-gaap

Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion

DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion

13207000

USD

CY2015Q2

us-gaap

Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion

DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion

6531000

USD

us-gaap

Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion

DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion

13074000

USD

CY2014Q4

us-gaap

Derivative Liabilities

DerivativeLiabilities

0

USD

CY2015Q2

us-gaap

Derivative Liabilities

DerivativeLiabilities

1321000

USD

CY2014Q4

us-gaap

Derivative Liability Collateral Right To Reclaim Cash Offset

DerivativeLiabilityCollateralRightToReclaimCashOffset

0

USD

CY2015Q2

us-gaap

Derivative Liability Collateral Right To Reclaim Cash Offset

DerivativeLiabilityCollateralRightToReclaimCashOffset

0

USD

CY2014Q4

us-gaap

Derivative Liability Fair Value Gross Asset

DerivativeLiabilityFairValueGrossAsset

4143000

USD

CY2015Q2

us-gaap

Derivative Liability Fair Value Gross Asset

DerivativeLiabilityFairValueGrossAsset

2866000

USD

CY2014Q4

us-gaap

Derivative Liability Fair Value Of Collateral

DerivativeLiabilityFairValueOfCollateral

64974000

USD

CY2015Q2

us-gaap

Derivative Liability Fair Value Of Collateral

DerivativeLiabilityFairValueOfCollateral

58509000

USD

us-gaap

Discontinuation Of Cash Flow Hedge

DiscontinuationOfCashFlowHedge

0

us-gaap

Discontinuation Of Cash Flow Hedge

DiscontinuationOfCashFlowHedge

0

us-gaap

Dividends Common Stock Cash

DividendsCommonStockCash

43916000

USD

us-gaap

Dividends Common Stock Cash

DividendsCommonStockCash

44658000

USD

CY2014Q2

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.46

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.99

CY2015Q2

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.44

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.88

CY2014Q2

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.46

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.99

CY2015Q2

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.43

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.87

CY2014Q2

us-gaap

Effective Income Tax Rate Continuing Operations

EffectiveIncomeTaxRateContinuingOperations

0.331

us-gaap

Effective Income Tax Rate Continuing Operations

EffectiveIncomeTaxRateContinuingOperations

0.344

CY2015Q2

us-gaap

Effective Income Tax Rate Continuing Operations

EffectiveIncomeTaxRateContinuingOperations

0.335

us-gaap

Effective Income Tax Rate Continuing Operations

EffectiveIncomeTaxRateContinuingOperations

0.341

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

0.350

us-gaap

Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1

EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1

P2Y1M17D

CY2015Q2

us-gaap

Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options

EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

26300000

USD

us-gaap

Excess Tax Benefit From Share Based Compensation Financing Activities

ExcessTaxBenefitFromShareBasedCompensationFinancingActivities

980000

USD

us-gaap

Excess Tax Benefit From Share Based Compensation Financing Activities

ExcessTaxBenefitFromShareBasedCompensationFinancingActivities

208000

USD

us-gaap

Excess Tax Benefit From Share Based Compensation Operating Activities

ExcessTaxBenefitFromShareBasedCompensationOperatingActivities

980000

USD

us-gaap

Excess Tax Benefit From Share Based Compensation Operating Activities

ExcessTaxBenefitFromShareBasedCompensationOperatingActivities

208000

USD

CY2014Q4

us-gaap

Fdic Indemnification Asset

FDICIndemnificationAsset

974704000

USD

CY2015Q2

us-gaap

Fdic Indemnification Asset

FDICIndemnificationAsset

859972000

USD

CY2014Q2

us-gaap

Fdic Indemnification Asset Accretion Of Discount

FDICIndemnificationAssetAccretionOfDiscount

15194000

USD

us-gaap

Fdic Indemnification Asset Accretion Of Discount

FDICIndemnificationAssetAccretionOfDiscount

30935000

USD

CY2014

us-gaap

Fdic Indemnification Asset Accretion Of Discount

FDICIndemnificationAssetAccretionOfDiscount

69470000

USD

CY2015Q2

us-gaap

Fdic Indemnification Asset Accretion Of Discount

FDICIndemnificationAssetAccretionOfDiscount

26460000

USD

us-gaap

Fdic Indemnification Asset Accretion Of Discount

FDICIndemnificationAssetAccretionOfDiscount

48465000

USD

CY2014Q2

us-gaap

Federal Deposit Insurance Corporation Premium Expense

FederalDepositInsuranceCorporationPremiumExpense

2311000

USD

us-gaap

Federal Deposit Insurance Corporation Premium Expense

FederalDepositInsuranceCorporationPremiumExpense

4563000

USD

CY2015Q2

us-gaap

Federal Deposit Insurance Corporation Premium Expense

FederalDepositInsuranceCorporationPremiumExpense

3163000

USD

us-gaap

Federal Deposit Insurance Corporation Premium Expense

FederalDepositInsuranceCorporationPremiumExpense

6081000

USD

CY2014Q4

us-gaap

Federal Funds Sold

FederalFundsSold

6674000

USD

CY2015Q2

us-gaap

Federal Funds Sold

FederalFundsSold

2213000

USD

CY2014Q4

us-gaap

Federal Home Loan Bank Advances Long Term

FederalHomeLoanBankAdvancesLongTerm

3318559000

USD

CY2015Q2

us-gaap

Federal Home Loan Bank Advances Long Term

FederalHomeLoanBankAdvancesLongTerm

3743697000

USD

CY2014Q4

us-gaap

Federal Home Loan Bank Stock And Federal Reserve Bank Stock

FederalHomeLoanBankStockAndFederalReserveBankStock

191674000

USD

CY2015Q2

us-gaap

Federal Home Loan Bank Stock And Federal Reserve Bank Stock

FederalHomeLoanBankStockAndFederalReserveBankStock

203070000

USD

CY2014Q2

us-gaap

Fees And Commissions

FeesAndCommissions

4186000

USD

us-gaap

Fees And Commissions

FeesAndCommissions

8191000

USD

CY2015Q2

us-gaap

Fees And Commissions

FeesAndCommissions

4492000

USD

us-gaap

Fees And Commissions

FeesAndCommissions

8943000

USD

CY2013Q4

us-gaap

Financing Receivable Allowance For Credit Losses