$WTFC
WINTRUST FINANCIAL CORP Stock $wtfc

$wtfc Overview Financials Valuation SEC Filings Company Website

2018 Q2 Form 10-Q Financial Statement

#000101532818000161 Filed on August 08, 2018

Income Statement

Concept	2018 Q2	2017 Q2
Revenue	$333.4M	$294.4M
YoY Change	13.26%	13.19%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$16.10M	$15.60M
YoY Change	3.21%	13.87%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$45.88M	$26.77M
YoY Change	71.36%	22.84%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$121.6M	$101.9M
YoY Change	19.27%	27.48%
Income Tax	$32.01M	$37.05M
% Of Pretax Income	26.33%	36.34%
Net Earnings	$89.58M	$64.90M
YoY Change	38.03%	29.69%
Net Earnings / Revenue	26.87%	22.05%
Basic Earnings Per Share	$1.55	$1.15
Diluted Earnings Per Share	$1.53	$1.11
COMMON SHARES
Basic Shares Outstanding	56.30M shares	54.78M shares
Diluted Shares Outstanding	57.23M shares	56.59M shares

Balance Sheet

Concept	2018 Q2	2017 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$304.6M	$296.2M
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	$639.3M	$605.2M
YoY Change	5.64%	1.58%
Goodwill	$510.0M	$500.3M
YoY Change	1.94%	2.91%
Intangibles	$21.41M
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$29.46B	$26.93B
YoY Change	9.41%	10.27%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$677.0M	$496.0M
YoY Change	36.49%	-4.98%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$21.40M	$46.28M
YoY Change	-53.76%	19.28%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$677.0M	$496.0M
YoY Change	36.49%	-4.98%
LONG-TERM LIABILITIES
Long-Term Debt	$627.0M	$624.0M
YoY Change	0.48%	2.97%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$627.0M	$624.0M
YoY Change	0.48%	2.97%
TOTAL LIABILITIES
Total Short-Term Liabilities	$677.0M	$496.0M
Total Long-Term Liabilities	$627.0M	$624.0M
Total Liabilities	$26.36B	$24.09B
YoY Change	9.41%	10.52%
SHAREHOLDERS EQUITY
Retained Earnings	$1.464B	$1.199B
YoY Change	22.14%	18.89%
Common Stock	$56.44M	$55.80M
YoY Change	1.14%	7.92%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$5.355M	$4.884M
YoY Change	9.64%	17.83%
Treasury Stock Shares	107.3K shares	101.7K shares
Shareholders Equity	$3.107B	$2.839B
YoY Change
Total Liabilities & Shareholders Equity	$29.46B	$26.93B
YoY Change	9.41%	10.27%

Cashflow Statement

Concept	2018 Q2	2017 Q2
OPERATING ACTIVITIES
Net Income	$89.58M	$64.90M
YoY Change	38.03%	29.69%
Depreciation, Depletion And Amortization	$16.10M	$15.60M
YoY Change	3.21%	13.87%
Cash From Operating Activities	$80.00M	-$3.900M
YoY Change	-2151.28%	-97.55%
INVESTING ACTIVITIES
Capital Expenditures	-$20.70M	-$15.50M
YoY Change	33.55%	0.0%
Acquisitions
YoY Change
Other Investing Activities	-$826.1M	-$898.2M
YoY Change	-8.03%	70.99%
Cash From Investing Activities	-$846.9M	-$913.7M
YoY Change	-7.31%	68.92%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	840.1M	996.6M
YoY Change	-15.7%	31.29%
NET CHANGE
Cash From Operating Activities	80.00M	-3.900M
Cash From Investing Activities	-846.9M	-913.7M
Cash From Financing Activities	840.1M	996.6M
Net Change In Cash	73.20M	79.00M
YoY Change	-7.34%	33.45%
FREE CASH FLOW
Cash From Operating Activities	$80.00M	-$3.900M
Capital Expenditures	-$20.70M	-$15.50M
Free Cash Flow	$100.7M	$11.60M
YoY Change	768.1%	-108.08%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
	dei	Document Period End Date DocumentPeriodEndDate	2018-06-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0001015328
CY2018Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	56364762	shares
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	WINTRUST FINANCIAL CORP
	dei	Trading Symbol TradingSymbol	WTFC
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	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	142066000	USD
CY2018Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	81459000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	137034000	USD
CY2017Q2	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	0	USD
CY2017Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	0	USD
CY2018Q2	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	0	USD
CY2017Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1891000	USD
CY2017Q4	us-gaap	Deposits Deposits	23183347000	USD
CY2018Q2	us-gaap	Deposits Deposits	24365479000	USD
CY2017Q2	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	4449385000	USD
CY2017Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	4515353000	USD
CY2018Q2	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	5205678000	USD
CY2017Q2	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	2459238000	USD
CY2017Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	2315055000	USD
CY2018Q2	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	2452474000	USD
CY2017Q2	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	2419463000	USD
CY2017Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	2829373000	USD
	us-gaap	Fees And Commissions Mortgage Banking FeesAndCommissionsMortgageBanking	57877000	USD
CY2018Q2	us-gaap	Fees And Commissions Mortgage Banking FeesAndCommissionsMortgageBanking	39834000	USD
	us-gaap	Fees And Commissions Mortgage Banking FeesAndCommissionsMortgageBanking	70794000	USD
	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	2404000	USD
CY2018Q2	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	980000	USD
	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	3906000	USD
CY2018Q2	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	2763062000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	29958000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	31986000	USD
CY2017Q2	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	49703000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	52069000	USD
CY2018Q2	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	92156000	USD
CY2017Q2	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	37651000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	35671000	USD
CY2018Q2	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	69364000	USD
CY2018Q2	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	263000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	15118000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	21362000	USD
	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	5678000	USD
	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	4100000	USD
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.15
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.20
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.55
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.98
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.11
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.11
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.53
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.93
CY2017Q2	us-gaap	Equipment Expense EquipmentExpense	9909000	USD
	us-gaap	Equipment Expense EquipmentExpense	18911000	USD
CY2018Q2	us-gaap	Equipment Expense EquipmentExpense	10527000	USD
	us-gaap	Equipment Expense EquipmentExpense	20599000	USD
CY2017Q2	us-gaap	Fdic Indemnification Asset Additional Estimated Losses FDICIndemnificationAssetAdditionalEstimatedLosses	75000	USD
	us-gaap	Fdic Indemnification Asset Additional Estimated Losses FDICIndemnificationAssetAdditionalEstimatedLosses	157000	USD
CY2017Q2	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	3874000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	8030000	USD
CY2018Q2	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	4598000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	8960000	USD
CY2017Q2	us-gaap	Federal Funds Sold And Securities Purchased Under Agreements To Resell FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	56000	USD
CY2017Q4	us-gaap	Federal Funds Sold And Securities Purchased Under Agreements To Resell FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	57000	USD
CY2018Q2	us-gaap	Federal Funds Sold And Securities Purchased Under Agreements To Resell FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	62000	USD
CY2017Q2	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	318270000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	559663000	USD
CY2018Q2	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	667000000	USD
CY2017Q2	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	80812000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	89989000	USD
CY2018Q2	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	96699000	USD
CY2017Q2	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	8696000	USD
	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	16961000	USD
CY2018Q2	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	9151000	USD
	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	18008000	USD
CY2017Q2	us-gaap	Fees And Commissions Mortgage Banking FeesAndCommissionsMortgageBanking	35939000	USD
CY2017Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	131296000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	144645000	USD
CY2017Q2	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	124314000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	135471000	USD
CY2017Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	6152000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	8554000	USD
CY2017Q2	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1472000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	3295000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	5770000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	8314000	USD
CY2017Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	6728000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	10145000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	6870000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	16148000	USD
CY2017Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	20245483000	USD
CY2018Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	22111452000	USD
CY2017Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	80072000	USD
CY2018Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	120610000	USD
CY2017	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	16	Loan
CY2018	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	32	Loan
CY2017Q2	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	4
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	8
CY2018Q2	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	12
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	19
CY2017	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	7242000	USD
CY2018	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	41197000	USD
CY2017Q2	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	2210000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	3723000	USD
CY2018Q2	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	19605000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	20595000	USD
CY2017Q2	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	2	Loan
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	2	Loan
CY2018Q2	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	8	Loan
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	8	Loan
CY2017Q2	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	260000	USD
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	260000	USD
CY2018Q2	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	4331000	USD
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	4331000	USD
CY2017Q2	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	20712000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	22659000	USD
CY2018Q2	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	10993000	USD
CY2017Q2	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	20595329000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	21408938000	USD
CY2018Q2	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	22398659000	USD
CY2017Q2	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	63801000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	77602000	USD
CY2018Q2	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	77899000	USD
CY2018Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	1795000	USD
CY2018Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	1556000	USD
CY2018Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	2056000	USD
CY2018Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	2597000	USD
CY2018Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	3223000	USD
CY2017Q2	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	739000	USD
CY2017Q4	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	400000	USD
	us-gaap	Gain Loss On Fair Value Hedge Ineffectiveness Net GainLossOnFairValueHedgeIneffectivenessNet	-30000	USD
	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	43547000	USD
	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	49200000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	140000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-18000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-896000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-3008000	USD
CY2017Q2	us-gaap	Goodwill Goodwill	500260000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	501884000	USD
CY2018Q2	us-gaap	Goodwill Goodwill	509957000	USD
	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	9106000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	-1033000	USD
CY2017Q2	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	793376000	USD
CY2017Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	826449000	USD
CY2018Q2	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	890834000	USD
CY2017Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	2854000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	2691000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	927000	USD
CY2017Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	8741000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	16624000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	39919000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	25048000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	39919000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	815594000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	14871000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	474384000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	341210000	USD
CY2017Q2	us-gaap	Held To Maturity Securities Debt Maturities Next Rolling Twelve Months Fair Value HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	0	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Next Rolling Twelve Months Fair Value HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	171000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities Next Rolling Twelve Months Fair Value HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	5658000	USD
CY2017Q2	us-gaap	Held To Maturity Securities Debt Maturities Rolling After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue	581913000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue	570653000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities Rolling After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue	605486000	USD
CY2017Q2	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Six Through Ten Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	172800000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Six Through Ten Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	203680000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Six Through Ten Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	208835000	USD
CY2017Q2	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Two Through Five Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	32776000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Two Through Five Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	38012000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Two Through Five Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	31863000	USD
CY2017Q2	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	787489000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	812516000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	851842000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	947150000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1182140000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	45232000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	61083000	USD
CY2017Q2	us-gaap	Heldtomaturity Securities Debt Maturities Next Rolling Twelve Months Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost	0	USD
CY2017Q4	us-gaap	Heldtomaturity Securities Debt Maturities Next Rolling Twelve Months Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost	170000	USD
CY2018Q2	us-gaap	Heldtomaturity Securities Debt Maturities Next Rolling Twelve Months Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost	5667000	USD
CY2017Q2	us-gaap	Heldtomaturity Securities Debt Maturities Rolling After Ten Years Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost	588053000	USD
CY2017Q4	us-gaap	Heldtomaturity Securities Debt Maturities Rolling After Ten Years Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost	582660000	USD
CY2018Q2	us-gaap	Heldtomaturity Securities Debt Maturities Rolling After Ten Years Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost	637784000	USD
CY2017Q2	us-gaap	Heldtomaturity Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost	172398000	USD
CY2017Q4	us-gaap	Heldtomaturity Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost	205227000	USD
CY2018Q2	us-gaap	Heldtomaturity Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost	214991000	USD
CY2017Q2	us-gaap	Heldtomaturity Securities Debt Maturities Rolling Year Two Through Five Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost	32925000	USD
CY2017Q4	us-gaap	Heldtomaturity Securities Debt Maturities Rolling Year Two Through Five Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost	38392000	USD
CY2018Q2	us-gaap	Heldtomaturity Securities Debt Maturities Rolling Year Two Through Five Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost	32392000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	84874000	USD
CY2017	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	115261000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	124979000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	2261000	USD
CY2017	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	6298000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	3220000	USD
CY2017Q2	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	79318000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	105088000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	120300000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	120302000	USD
CY2017Q2	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	5633000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	8023000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	8541000	USD
CY2017Q2	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	90876000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	127566000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	135812000	USD
CY2017Q2	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	50281000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	69004000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	80346000	USD
CY2017Q2	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	29037000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	36084000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	39956000	USD
CY2017Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	101946000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	189964000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	121591000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	229657000	USD
CY2017Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	37049000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	66689000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	32011000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	58096000	USD
	us-gaap	Increase Decrease In Broker Dealer Related Receivables Payables Net IncreaseDecreaseInBrokerDealerRelatedReceivablesPayablesNet	-1900000	USD
	us-gaap	Increase Decrease In Broker Dealer Related Receivables Payables Net IncreaseDecreaseInBrokerDealerRelatedReceivablesPayablesNet	-9782000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	15729000	USD
CY2018Q2	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	8752000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	17245000	USD
CY2017Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	231181000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	446940000	USD
CY2018Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	284047000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	545252000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-21393000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	92374000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-2000	USD
CY2017Q2	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	7804000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-133000	USD
CY2017Q2	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	885000	shares
	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	1987000	shares
CY2018Q2	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
CY2017Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	927000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	994000	shares
CY2018Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	928000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	909000	shares
CY2017Q2	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	15524000	USD
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	29097000	USD
CY2018Q2	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	19888000	USD
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	39016000	USD
CY2017Q2	us-gaap	Interest And Dividend Income Securities Trading Or Measured At Fair Value InterestAndDividendIncomeSecuritiesTradingOrMeasuredAtFairValue	4000	USD
	us-gaap	Interest And Dividend Income Securities Trading Or Measured At Fair Value InterestAndDividendIncomeSecuritiesTradingOrMeasuredAtFairValue	15000	USD
CY2018Q2	us-gaap	Interest And Dividend Income Securities Trading Or Measured At Fair Value InterestAndDividendIncomeSecuritiesTradingOrMeasuredAtFairValue	4000	USD
	us-gaap	Interest And Dividend Income Securities Trading Or Measured At Fair Value InterestAndDividendIncomeSecuritiesTradingOrMeasuredAtFairValue	18000	USD
CY2017Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	209289000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	406205000	USD
CY2018Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	255063000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	490057000	USD
CY2017Q2	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	3420000	USD
	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	5818000	USD
CY2018Q2	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	4226000	USD
	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	7044000	USD
CY2017Q2	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	16311640000	USD
CY2017Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	16390850000	USD
CY2018Q2	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	17844755000	USD
CY2017Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	1011635000	USD
CY2017Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	1063242000	USD
CY2018Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	1221407000	USD
CY2017Q2	us-gaap	Interest Expense InterestExpense	26772000	USD
	us-gaap	Interest Expense InterestExpense	49951000	USD
CY2018Q2	us-gaap	Interest Expense InterestExpense	45877000	USD
	us-gaap	Interest Expense InterestExpense	82000000	USD
CY2017Q2	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	1149000	USD
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	2288000	USD
CY2018Q2	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	1698000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	382889000	USD
CY2018Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	233127000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	449863000	USD
CY2017Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	204409000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	396989000	USD
CY2018Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	238170000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	463252000	USD
CY2017Q2	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	1000	USD
	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	2000	USD
CY2018Q2	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	1000	USD
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	3397000	USD
CY2017Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	18471000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	34741000	USD
CY2018Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	35293000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	61842000	USD
CY2017Q2	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	2933000	USD
	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	4523000	USD
CY2018Q2	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	4263000	USD
	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	7902000	USD
CY2017Q2	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	2433000	USD
	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	4841000	USD
CY2018Q2	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	2836000	USD
	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	5299000	USD
CY2017Q2	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	1786000	USD
	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	3558000	USD
CY2018Q2	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	1787000	USD
	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	3560000	USD
CY2017Q2	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	1634000	USD
	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	3257000	USD
CY2018Q2	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	3243000	USD
	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	6039000	USD
CY2017Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	195518000	USD
	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	1000	USD
CY2017Q2	us-gaap	Interest Receivable And Other Assets InterestReceivableAndOtherAssets	577359000	USD
CY2017Q4	us-gaap	Interest Receivable And Other Assets InterestReceivableAndOtherAssets	567374000	USD
CY2018Q2	us-gaap	Interest Receivable And Other Assets InterestReceivableAndOtherAssets	666673000	USD
CY2017Q2	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	253566000	USD
CY2017Q2	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	253600000	USD
CY2017Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	253566000	USD
CY2017Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	253600000	USD
CY2018Q2	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	253566000	USD
CY2017Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	106502000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	205818000	USD
CY2018Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	121675000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	234111000	USD
CY2017Q2	us-gaap	Liabilities Liabilities	24089807000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	24939031000	USD
CY2018Q2	us-gaap	Liabilities Liabilities	26357717000	USD
CY2017Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	26929265000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	27915970000	USD
CY2018Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	29464588000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	122291000	USD
CY2017Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	125819000	USD
CY2017Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	129591000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	137905000	USD
CY2018Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	139503000	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	143402000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance Covered LoansAndLeasesReceivableAllowanceCovered	1322000	USD
CY2017Q1	us-gaap	Loans And Leases Receivable Allowance Covered LoansAndLeasesReceivableAllowanceCovered	1319000	USD
CY2017Q2	us-gaap	Loans And Leases Receivable Allowance Covered LoansAndLeasesReceivableAllowanceCovered	1074000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance Covered LoansAndLeasesReceivableAllowanceCovered	0	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Allowance Covered LoansAndLeasesReceivableAllowanceCovered	0	USD
CY2017Q2	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	20743332000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	21640797000	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	22610560000	USD
CY2017Q2	us-gaap	Loans And Leases Receivable Net Reported Amount Covered LoansAndLeasesReceivableNetReportedAmountCovered	50119000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Net Reported Amount Covered LoansAndLeasesReceivableNetReportedAmountCovered	0	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Net Reported Amount Covered LoansAndLeasesReceivableNetReportedAmountCovered	0	USD
CY2017Q2	us-gaap	Loans And Leases Receivable Net Reported Amount Covered And Not Covered LoansAndLeasesReceivableNetReportedAmountCoveredAndNotCovered	20662786000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Net Reported Amount Covered And Not Covered LoansAndLeasesReceivableNetReportedAmountCoveredAndNotCovered	21502892000	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Net Reported Amount Covered And Not Covered LoansAndLeasesReceivableNetReportedAmountCoveredAndNotCovered	22467158000	USD
CY2017Q2	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	382837000	USD
CY2017Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	313592000	USD
CY2018Q2	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	455712000	USD
CY2018Q2	us-gaap	Loans Payable To Bank LoansPayableToBank	150000000	USD
	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-8000	USD
	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-339000	USD
CY2017Q2	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	47000	USD
	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	-8000	USD
CY2018Q2	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	12000	USD
	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	-339000	USD
CY2017Q2	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	47000	USD
	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	-8000	USD
CY2018Q2	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	-20000	USD
	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	-995000	USD
CY2017Q2	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	8726000	USD
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	13876000	USD
CY2018Q2	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	11782000	USD
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	20606000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1120284000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1270567000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1219967000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1346240000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	125799000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	102724000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	64897000	USD
	us-gaap	Net Income Loss NetIncomeLoss	123275000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	89580000	USD
	us-gaap	Net Income Loss NetIncomeLoss	171561000	USD
CY2017Q2	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	62847000	USD
	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	119175000	USD
CY2018Q2	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	87530000	USD
	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	167461000	USD
CY2017Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	62847000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	117597000	USD
CY2018Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	87530000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	167461000	USD
CY2017Q2	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	6294052000	USD
CY2017Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	6792497000	USD
CY2018Q2	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	6520724000	USD
CY2017Q2	us-gaap	Noninterest Expense NoninterestExpense	183544000	USD
	us-gaap	Noninterest Expense NoninterestExpense	351662000	USD
CY2018Q2	us-gaap	Noninterest Expense NoninterestExpense	206769000	USD
	us-gaap	Noninterest Expense NoninterestExpense	401118000	USD
CY2017Q2	us-gaap	Noninterest Income NoninterestIncome	89972000	USD
	us-gaap	Noninterest Income NoninterestIncome	158737000	USD
CY2018Q2	us-gaap	Noninterest Income NoninterestIncome	95233000	USD
	us-gaap	Noninterest Income NoninterestIncome	180912000	USD
CY2017Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	18110000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	30358000	USD
CY2018Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	14080000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	25916000	USD
CY2017Q2	us-gaap	Notes Payable NotesPayable	44959000	USD
CY2017Q4	us-gaap	Notes Payable NotesPayable	41222000	USD
CY2018Q2	us-gaap	Notes Payable NotesPayable	29982000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2017Q2	us-gaap	Occupancy Net OccupancyNet	12586000	USD
	us-gaap	Occupancy Net OccupancyNet	25687000	USD
CY2018Q2	us-gaap	Occupancy Net OccupancyNet	13663000	USD
	us-gaap	Occupancy Net OccupancyNet	27430000	USD
CY2017Q2	us-gaap	Operating Leases Income Statement Depreciation Expense On Property Subject To Or Held For Lease OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease	5662000	USD
	us-gaap	Operating Leases Income Statement Depreciation Expense On Property Subject To Or Held For Lease OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease	10298000	USD
CY2018Q2	us-gaap	Operating Leases Income Statement Depreciation Expense On Property Subject To Or Held For Lease OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease	6940000	USD
	us-gaap	Operating Leases Income Statement Depreciation Expense On Property Subject To Or Held For Lease OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease	13473000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-1996000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-4893000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	987000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	1325000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-664000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-1620000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	13287000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	18791000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-8121000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-34527000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	47000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-8000	USD
CY2017Q2	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	6805000	USD
	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	12587000	USD
CY2018Q2	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	8746000	USD
	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	18437000	USD
CY2017Q2	us-gaap	Other Borrowings OtherBorrowings	277710000	USD
CY2017Q4	us-gaap	Other Borrowings OtherBorrowings	266123000	USD
CY2018Q2	us-gaap	Other Borrowings OtherBorrowings	255701000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	10641000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	14287000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-6917000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-32675000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	12916000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	19037000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-7139000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-33764000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	3820000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	5035000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-2660000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-6513000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	2833000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	3710000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-20000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-995000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	29000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-5000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-12000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-725000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	18000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-3000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-8000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-270000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-310000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	1305000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	1082000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	4157000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-187000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	794000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	792000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	3041000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-123000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	511000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	290000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	1116000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	17593000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	24972000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-9455000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-45639000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	10683000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	15162000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-6914000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-33388000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	6910000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	9810000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-2541000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-12251000	USD
CY2017Q2	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	19546000	USD
CY2017Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	17621000	USD
CY2018Q2	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	21414000	USD
CY2017Q2	us-gaap	Other Long Term Debt OtherLongTermDebt	49765000	USD
CY2017Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	49131000	USD
CY2018Q2	us-gaap	Other Long Term Debt OtherLongTermDebt	48369000	USD
CY2017Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	19091000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	36434000	USD
CY2018Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	20371000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	39654000	USD
CY2017Q2	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
CY2018Q2	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	1058000	USD
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	USD
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	1856725000	USD
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	1875225000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-52682000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	6710000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1032772000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	937503000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	295000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	369000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	20796000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	25462000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	184659000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	475998000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	284000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	18708000	USD
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	256094000	USD
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	70993000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	26260000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	32318000	USD
CY2017Q2	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Money Market PercentageOfInterestBearingDomesticDepositsToDepositsMoneyMarket	0.19
CY2017Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Money Market PercentageOfInterestBearingDomesticDepositsToDepositsMoneyMarket	0.20
CY2018Q2	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Money Market PercentageOfInterestBearingDomesticDepositsToDepositsMoneyMarket	0.21
CY2017Q2	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Savings PercentageOfInterestBearingDomesticDepositsToDepositsSavings	0.11
CY2017Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Savings PercentageOfInterestBearingDomesticDepositsToDepositsSavings	0.12
CY2018Q2	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Savings PercentageOfInterestBearingDomesticDepositsToDepositsSavings	0.11
CY2017Q2	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Time Deposits PercentageOfInterestBearingDomesticDepositsToDepositsTimeDeposits	0.20
CY2017Q4	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Time Deposits PercentageOfInterestBearingDomesticDepositsToDepositsTimeDeposits	0.19
CY2018Q2	us-gaap	Percentage Of Interest Bearing Domestic Deposits To Deposits Time Deposits PercentageOfInterestBearingDomesticDepositsToDepositsTimeDeposits	0.20
CY2017Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	2050000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	5678000	USD
CY2018Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	2050000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	4100000	USD
CY2017Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2018Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2017Q2	us-gaap	Principal Amount Outstanding On Loans Managed And Securitized PrincipalAmountOutstandingOnLoansManagedAndSecuritized	2303435000	USD
CY2018Q2	us-gaap	Principal Amount Outstanding On Loans Managed And Securitized PrincipalAmountOutstandingOnLoansManagedAndSecuritized	5228699000	USD
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	2121000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	143983000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	133209000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	101547000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	6014000	USD
	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	-31178000	USD
	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	-160456000	USD
	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	15163000	USD
	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-4489000	USD
CY2017Q2	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	0	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	3676000	USD
CY2018Q2	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	0	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	208991000	USD
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	8601000	USD
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	8236000	USD
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	1928870000	USD
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	1770257000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	15100000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	9700000	USD
CY2017Q2	us-gaap	Professional Fees ProfessionalFees	7510000	USD
	us-gaap	Professional Fees ProfessionalFees	12170000	USD
CY2018Q2	us-gaap	Professional Fees ProfessionalFees	6484000	USD
	us-gaap	Professional Fees ProfessionalFees	13133000	USD
CY2017Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	605211000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	621895000	USD
CY2018Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	639345000	USD
CY2017Q2	us-gaap	Property Subject To Or Available For Operating Lease Net PropertySubjectToOrAvailableForOperatingLeaseNet	191248000	USD
CY2017Q4	us-gaap	Property Subject To Or Available For Operating Lease Net PropertySubjectToOrAvailableForOperatingLeaseNet	212335000	USD
CY2018Q2	us-gaap	Property Subject To Or Available For Operating Lease Net PropertySubjectToOrAvailableForOperatingLeaseNet	194160000	USD
CY2017Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	8952000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	14268000	USD
CY2018Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	5043000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	13389000	USD
CY2017Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	8891000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	14100000	USD
CY2018Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	5043000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	13389000	USD
CY2017Q2	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	23281000	USD
CY2017Q4	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	26431000	USD
CY2018Q2	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	16649000	USD
CY2017Q2	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-384000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-634000	USD
CY2018Q2	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	967000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	751000	USD
CY2017Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1198997000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1313657000	USD
CY2018Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1464494000	USD
CY2017Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	34283000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	67809000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	37411000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	75591000	USD
CY2018Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	185000	USD
CY2018Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	369000	USD
CY2018Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	369000	USD
CY2018Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	303000	USD
CY2018Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	153000	USD
CY2018Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	143000	USD
CY2018Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	1522000	USD
	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod	P6M
	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod	P1Y
	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod	P1Y
	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod	P1Y
	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod	P1Y
	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod	P1Y
CY2017Q2	us-gaap	Revenues Revenues	294381000	USD
	us-gaap	Revenues Revenues	555726000	USD
CY2018Q2	us-gaap	Revenues Revenues	333403000	USD
	us-gaap	Revenues Revenues	644164000	USD
CY2017Q2	us-gaap	Secured Debt SecuredDebt	136706000	USD
CY2017Q4	us-gaap	Secured Debt SecuredDebt	158561000	USD
CY2018Q2	us-gaap	Secured Debt SecuredDebt	155913000	USD
CY2018Q2	us-gaap	Securities Owned Not Readily Marketable SecuritiesOwnedNotReadilyMarketable	24700000	USD
CY2017Q2	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	0	USD
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	0	USD
CY2018Q2	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	0	USD
CY2017Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	41.84
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2017Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	45561000	USD
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	38164000	USD
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1698912	shares
CY2017Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1316693	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1084756	shares
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	848493	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	41.50
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	41.98
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	42.07
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	40.28
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	41.65
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	42.49
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	40.87
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0.00
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0.00
	wtfc	Marketable Securities Gross Realized Losses Excluding Other Than Temporary Impairments MarketableSecuritiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments	1001000	USD
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	13806000	USD
CY2016Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	19103000	USD
CY2017Q1	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	21596000	USD
CY2017Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	27307000	USD
CY2017Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	33676000	USD
CY2018Q1	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	54572000	USD
CY2018Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	63194000	USD
CY2017Q2	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	825000	USD
	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	981000	USD
CY2018Q2	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	2097000	USD
	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	6230000	USD
CY2017Q2	us-gaap	Servicing Asset At Fair Value Disposals ServicingAssetAtFairValueDisposals	562000	USD
	us-gaap	Servicing Asset At Fair Value Disposals ServicingAssetAtFairValueDisposals	991000	USD
CY2018Q2	us-gaap	Servicing Asset At Fair Value Disposals ServicingAssetAtFairValueDisposals	1364000	USD
	us-gaap	Servicing Asset At Fair Value Disposals ServicingAssetAtFairValueDisposals	2566000	USD
	us-gaap	Servicing Asset At Fair Value Period Increase Decrease ServicingAssetAtFairValuePeriodIncreaseDecrease	-1265000	USD
	us-gaap	Servicing Asset At Fair Value Period Increase Decrease ServicingAssetAtFairValuePeriodIncreaseDecrease	-3664000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	5746000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	7098000	USD
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	3400000	shares
CY2017Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	765711	shares
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	650494	shares
CY2017Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	41.56
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	42.24
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	11900000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	10900000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	8173	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	4361	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2017Q2	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	26707000	USD
CY2018Q2	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	29147000	USD
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y8M12D
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y2M12D
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y4M24D
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y6M0D
CY2017Q2	us-gaap	Short Term Borrowings ShortTermBorrowings	46280000	USD
CY2017Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	17209000	USD
CY2018Q2	us-gaap	Short Term Borrowings ShortTermBorrowings	21437000	USD
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	374046	shares
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	231902	shares
	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1249000	USD
	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1238000	USD
	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	810000	USD
	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	850000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-295000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-369000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	2695617000	USD
CY2017Q2	us-gaap	Stockholders Equity StockholdersEquity	2839458000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	2976939000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	3106871000	USD
CY2017Q2	us-gaap	Subordinated Debt SubordinatedDebt	139029000	USD
CY2017Q4	us-gaap	Subordinated Debt SubordinatedDebt	139088000	USD
CY2018Q2	us-gaap	Subordinated Debt SubordinatedDebt	139148000	USD
CY2017Q2	us-gaap	Time Deposits TimeDeposits	4519392000	USD
CY2017Q4	us-gaap	Time Deposits TimeDeposits	4407370000	USD
CY2018Q2	us-gaap	Time Deposits TimeDeposits	4899969000	USD
CY2017Q2	us-gaap	Trading Gains Losses TradingGainsLosses	-420000	USD
	us-gaap	Trading Gains Losses TradingGainsLosses	-740000	USD
CY2018Q2	us-gaap	Trading Gains Losses TradingGainsLosses	124000	USD
	us-gaap	Trading Gains Losses TradingGainsLosses	227000	USD
CY2017Q2	us-gaap	Trading Securities TradingSecurities	1987000	USD
CY2017Q4	us-gaap	Trading Securities TradingSecurities	995000	USD
CY2018Q2	us-gaap	Trading Securities TradingSecurities	862000	USD
CY2017Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	101738	shares
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	103013	shares
CY2018Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	107288	shares
CY2017Q2	us-gaap	Treasury Stock Value TreasuryStockValue	4884000	USD
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	4986000	USD
CY2018Q2	us-gaap	Treasury Stock Value TreasuryStockValue	5355000	USD
CY2017Q2	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	6500000	USD
CY2017Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	9300000	USD
CY2018Q2	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	11500000	USD
CY2017Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1812000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2981000	shares
CY2018Q2	wtfc	Change In Contribution Assets ChangeInContributionAssets	2535323000	USD
CY2018Q2	wtfc	Change In Contribution Interest Income Expense Net ChangeInContributionInterestIncomeExpenseNet	33761000	USD
	wtfc	Change In Contribution Interest Income Expense Net ChangeInContributionInterestIncomeExpenseNet	66263000	USD
CY2018Q2	wtfc	Change In Contribution Non Interest Income ChangeInContributionNonInterestIncome	5261000	USD
CY2018Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	928000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	909000	shares
CY2017Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	56587000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	56509000	shares
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	57227000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	57127000	shares
CY2017Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	54775000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53528000	shares
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	56299000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	56218000	shares
	wtfc	Accretion Amortization Of Discount Premium On Loans AccretionAmortizationOfDiscountPremiumOnLoans	11979000	USD
	wtfc	Accretion Amortization Of Discount Premium On Loans AccretionAmortizationOfDiscountPremiumOnLoans	9860000	USD
CY2017Q2	wtfc	Administrative Services Receivable AdministrativeServicesReceivable	98000	USD
CY2017Q4	wtfc	Administrative Services Receivable AdministrativeServicesReceivable	0	USD
CY2018Q2	wtfc	Administrative Services Receivable AdministrativeServicesReceivable	102000	USD
CY2017Q2	wtfc	Allowance For Unfunded Lending Related Commitments AllowanceForUnfundedLendingRelatedCommitments	1705000	USD
CY2018Q2	wtfc	Allowance For Unfunded Lending Related Commitments AllowanceForUnfundedLendingRelatedCommitments	1243000	USD
CY2018Q2	wtfc	Assets Nonrecurring Fair Value Losses Recognized AssetsNonrecurringFairValueLossesRecognized	4799000	USD
	wtfc	Assets Nonrecurring Fair Value Losses Recognized AssetsNonrecurringFairValueLossesRecognized	10843000	USD
CY2018Q2	wtfc	Assets Percentage AssetsPercentage	0.09
	wtfc	Bank Owned Life Insurance Net Of Claims BankOwnedLifeInsuranceNetOfClaims	1873000	USD
	wtfc	Bank Owned Life Insurance Net Of Claims BankOwnedLifeInsuranceNetOfClaims	2258000	USD
CY2017Q2	wtfc	Benefit Attributable To Federal Deposit Insurance Corporation Loss Share Agreements BenefitAttributableToFederalDepositInsuranceCorporationLossShareAgreements	242000	USD
	wtfc	Benefit Attributable To Federal Deposit Insurance Corporation Loss Share Agreements BenefitAttributableToFederalDepositInsuranceCorporationLossShareAgreements	670000	USD
CY2017Q2	wtfc	Brokerage Trust And Asset Management Revenue BrokerageTrustAndAssetManagementRevenue	19905000	USD
	wtfc	Brokerage Trust And Asset Management Revenue BrokerageTrustAndAssetManagementRevenue	40053000	USD
CY2018Q2	wtfc	Brokerage Trust And Asset Management Revenue BrokerageTrustAndAssetManagementRevenue	22617000	USD
	wtfc	Brokerage Trust And Asset Management Revenue BrokerageTrustAndAssetManagementRevenue	45603000	USD
CY2017Q2	wtfc	Card Related Fee Receivable CardRelatedFeeReceivable	0	USD
CY2017Q4	wtfc	Card Related Fee Receivable CardRelatedFeeReceivable	202000	USD
CY2018Q2	wtfc	Card Related Fee Receivable CardRelatedFeeReceivable	0	USD
CY2017Q2	wtfc	Certain Loans Acquired Accretable Yield Amortized To Indemnification Asset CertainLoansAcquiredAccretableYieldAmortizedToIndemnificationAsset	361000	USD
	wtfc	Certain Loans Acquired Accretable Yield Amortized To Indemnification Asset CertainLoansAcquiredAccretableYieldAmortizedToIndemnificationAsset	715000	USD
CY2018Q2	wtfc	Certain Loans Acquired Accretable Yield Amortized To Indemnification Asset CertainLoansAcquiredAccretableYieldAmortizedToIndemnificationAsset	0	USD
	wtfc	Certain Loans Acquired Accretable Yield Amortized To Indemnification Asset CertainLoansAcquiredAccretableYieldAmortizedToIndemnificationAsset	0	USD
	wtfc	Change In Contribution Non Interest Income ChangeInContributionNonInterestIncome	22175000	USD
CY2018Q2	wtfc	Change In Contribution Operating Income Loss ChangeInContributionOperatingIncomeLoss	24683000	USD
	wtfc	Change In Contribution Operating Income Loss ChangeInContributionOperatingIncomeLoss	48286000	USD
CY2018Q2	wtfc	Change In Contribution Revenues ChangeInContributionRevenues	39022000	USD
	wtfc	Change In Contribution Revenues ChangeInContributionRevenues	88438000	USD
CY2018Q2	wtfc	Common Securities Proportion To Junior Subordinated Debentures CommonSecuritiesProportionToJuniorSubordinatedDebentures	0.03
CY2018Q1	wtfc	Common Stock Dividends Per Share Declared Annualized CommonStockDividendsPerShareDeclaredAnnualized	0.76
	wtfc	Marketable Securities Gross Realized Gains Excluding Other Than Temporary Impairments MarketableSecuritiesGrossRealizedGainsExcludingOtherThanTemporaryImpairments	48000	USD
CY2018Q2	wtfc	Equity Securitieswithout Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	0	USD
	wtfc	Equity Securitieswithout Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	-537000	USD
CY2017Q2	wtfc	Equity Securitieswithout Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	0	USD
CY2018Q2	wtfc	Marketable Securities Gross Realized Gains Excluding Other Than Temporary Impairments MarketableSecuritiesGrossRealizedGainsExcludingOtherThanTemporaryImpairments	6000	USD
	wtfc	Marketable Securities Gross Realized Gains Excluding Other Than Temporary Impairments MarketableSecuritiesGrossRealizedGainsExcludingOtherThanTemporaryImpairments	6000	USD
CY2017Q2	wtfc	Marketable Securities Gross Realized Losses Excluding Other Than Temporary Impairments MarketableSecuritiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments	1000	USD
CY2018Q2	wtfc	Common Stock Dividends Per Share Declared Annualized CommonStockDividendsPerShareDeclaredAnnualized	0.76
CY2017Q2	wtfc	Covered Loans90 Days Past Due And Still Accruing CoveredLoans90DaysPastDueAndStillAccruing	2504000	USD
CY2017Q2	wtfc	Covered Loans Charged Off CoveredLoansChargedOff	120000	USD
	wtfc	Covered Loans Charged Off CoveredLoansChargedOff	336000	USD
CY2017Q2	wtfc	Covered Loans Current CoveredLoansCurrent	44943000	USD
CY2017Q2	wtfc	Covered Loans Net Charge Offs CoveredLoansNetChargeOffs	-58000	USD
	wtfc	Covered Loans Net Charge Offs CoveredLoansNetChargeOffs	-590000	USD
CY2017Q2	wtfc	Covered Loans Nonaccrual CoveredLoansNonaccrual	1961000	USD
CY2017Q2	wtfc	Debt Currentand Noncurrent DebtCurrentandNoncurrent	735009000	USD
CY2017Q4	wtfc	Debt Currentand Noncurrent DebtCurrentandNoncurrent	964874000	USD
CY2018Q2	wtfc	Debt Currentand Noncurrent DebtCurrentandNoncurrent	1061849000	USD
CY2017Q2	wtfc	Deposits Percentage DepositsPercentage	1
CY2017Q4	wtfc	Deposits Percentage DepositsPercentage	1
CY2018Q2	wtfc	Deposits Percentage DepositsPercentage	1
CY2017Q2	wtfc	Equity Securities Fvni EquitySecuritiesFVNI	0	USD
CY2017Q4	wtfc	Equity Securities Fvni EquitySecuritiesFVNI	0	USD
CY2018Q2	wtfc	Equity Securities Fvni EquitySecuritiesFVNI	37839000	USD
CY2018Q2	wtfc	Equity Securities Fvni Accumulated Unrealized Gain EquitySecuritiesFVNIAccumulatedUnrealizedGain	4783000	USD
CY2018Q2	wtfc	Equity Securities Fvni Accumulated Unrealized Loss EquitySecuritiesFVNIAccumulatedUnrealizedLoss	1174000	USD
CY2018Q2	wtfc	Equity Securities Fvni Cost EquitySecuritiesFVNICost	34230000	USD
CY2017Q2	wtfc	Equity Securities Fvni Unrealized Gain EquitySecuritiesFVNIUnrealizedGain	0	USD
	wtfc	Equity Securities Fvni Unrealized Gain EquitySecuritiesFVNIUnrealizedGain	0	USD
CY2018Q2	wtfc	Equity Securities Fvni Unrealized Gain EquitySecuritiesFVNIUnrealizedGain	229000	USD
	wtfc	Equity Securities Fvni Unrealized Gain EquitySecuritiesFVNIUnrealizedGain	2102000	USD
CY2017Q2	wtfc	Equity Securities Fvni Unrealized Gain Loss EquitySecuritiesFVNIUnrealizedGainLoss	0	USD
	wtfc	Equity Securities Fvni Unrealized Gain Loss EquitySecuritiesFVNIUnrealizedGainLoss	0	USD
CY2018Q1	wtfc	Equity Securities Fvni Unrealized Gain Loss EquitySecuritiesFVNIUnrealizedGainLoss	1000000	USD
CY2018Q2	wtfc	Equity Securities Fvni Unrealized Gain Loss EquitySecuritiesFVNIUnrealizedGainLoss	7000	USD
	wtfc	Equity Securities Fvni Unrealized Gain Loss EquitySecuritiesFVNIUnrealizedGainLoss	1037000	USD
CY2017Q2	wtfc	Equity Securities Fvni Unrealized Loss EquitySecuritiesFVNIUnrealizedLoss	0	USD
	wtfc	Equity Securities Fvni Unrealized Loss EquitySecuritiesFVNIUnrealizedLoss	0	USD
CY2018Q2	wtfc	Equity Securities Fvni Unrealized Loss EquitySecuritiesFVNIUnrealizedLoss	222000	USD
	wtfc	Equity Securities Fvni Unrealized Loss EquitySecuritiesFVNIUnrealizedLoss	1065000	USD
CY2018Q2	wtfc	Equity Securitieswithout Readily Determinable Fair Value Downward Price Adjustment Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount	0	USD
	wtfc	Equity Securitieswithout Readily Determinable Fair Value Downward Price Adjustment Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount	0	USD
CY2017Q2	wtfc	Equity Securitieswithout Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	0	USD
	wtfc	Equity Securitieswithout Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	0	USD
	wtfc	Equity Securitieswithout Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	0	USD
CY2018Q2	wtfc	Equity Securitieswithout Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	25000	USD
	wtfc	Equity Securitieswithout Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	156000	USD
CY2016Q4	wtfc	Fdic Indemnification Liability Asset FDICIndemnificationLiabilityAsset	16701000	USD
CY2017Q1	wtfc	Fdic Indemnification Liability Asset FDICIndemnificationLiabilityAsset	18263000	USD
CY2017Q2	wtfc	Fdic Indemnification Liability Asset FDICIndemnificationLiabilityAsset	15375000	USD
	wtfc	Marketable Securities Gross Realized Losses Excluding Other Than Temporary Impairments MarketableSecuritiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments	56000	USD
CY2017Q2	wtfc	Fdic Indemnification Liability Asset Amortization FDICIndemnificationLiabilityAssetAmortization	455000	USD
	wtfc	Fdic Indemnification Liability Asset Amortization FDICIndemnificationLiabilityAssetAmortization	699000	USD
CY2017Q4	wtfc	Fdic Indemnification Liability Cash Proceeds From Payments To FDICIndemnificationLiabilityCashProceedsFromPaymentsTo	15200000	USD
CY2017Q2	wtfc	Fdic Indemnification Liability Cash Proceeds From Payments To FDICIndemnificationLiabilityCashProceedsFromPaymentsTo	405000	USD
	wtfc	Fdic Indemnification Liability Cash Proceeds From Payments To FDICIndemnificationLiabilityCashProceedsFromPaymentsTo	791000	USD
CY2017Q2	wtfc	Fdic Indemnification Liability Change In Expected Reimbursements From To Fdic FDICIndemnificationLiabilityChangeInExpectedReimbursementsFromToFDIC	-3673000	USD
	wtfc	Fdic Indemnification Liability Change In Expected Reimbursements From To Fdic FDICIndemnificationLiabilityChangeInExpectedReimbursementsFromToFDIC	-2659000	USD
	wtfc	Fdic Loss Sharing Agreement Percentage FDICLossSharingAgreementPercentage	0.8
CY2017Q2	wtfc	Fees From Covered Call Options FeesFromCoveredCallOptions	890000	USD
	wtfc	Fees From Covered Call Options FeesFromCoveredCallOptions	1649000	USD
CY2018Q2	wtfc	Fees From Covered Call Options FeesFromCoveredCallOptions	669000	USD
	wtfc	Fees From Covered Call Options FeesFromCoveredCallOptions	2266000	USD
CY2017Q2	wtfc	Financing Receivable Allowance For Credit Losses Other Adjustments FinancingReceivableAllowanceForCreditLossesOtherAdjustments	-30000	USD
	wtfc	Financing Receivable Allowance For Credit Losses Other Adjustments FinancingReceivableAllowanceForCreditLossesOtherAdjustments	-86000	USD
CY2018Q2	wtfc	Financing Receivable Allowance For Credit Losses Other Adjustments FinancingReceivableAllowanceForCreditLossesOtherAdjustments	-44000	USD
	wtfc	Financing Receivable Allowance For Credit Losses Other Adjustments FinancingReceivableAllowanceForCreditLossesOtherAdjustments	-84000	USD
CY2017Q2	wtfc	Financing Receivables Modifications Weighted Average Extension Term FinancingReceivablesModificationsWeightedAverageExtensionTerm	P54M
	wtfc	Financing Receivables Modifications Weighted Average Extension Term FinancingReceivablesModificationsWeightedAverageExtensionTerm	P36M
CY2018Q2	wtfc	Financing Receivables Modifications Weighted Average Extension Term FinancingReceivablesModificationsWeightedAverageExtensionTerm	P37M
	wtfc	Financing Receivables Modifications Weighted Average Extension Term FinancingReceivablesModificationsWeightedAverageExtensionTerm	P50M
CY2018Q2	wtfc	Impaired Loans Fair Value Losses Recognized ImpairedLoansFairValueLossesRecognized	3288000	USD
	wtfc	Impaired Loans Fair Value Losses Recognized ImpairedLoansFairValueLossesRecognized	7174000	USD
CY2017Q2	wtfc	Increase Decrease In Loss Share Liabilities IncreaseDecreaseInLossShareLiabilities	-4900000	USD
CY2017Q2	wtfc	Increase In Fdic Indemnification Asset IncreaseInFdicIndemnificationAsset	242000	USD
	wtfc	Increase In Fdic Indemnification Asset IncreaseInFdicIndemnificationAsset	670000	USD
CY2018Q2	wtfc	Interest Income Expense Net Percentage InterestIncomeExpenseNetPercentage	0.17
	wtfc	Interest Income Expense Net Percentage InterestIncomeExpenseNetPercentage	0.17
CY2017Q2	wtfc	Interest Income Federal Home Loan Banks And Federal Reserve Bank Stock InterestIncomeFederalHomeLoanBanksAndFederalReserveBankStock	1153000	USD
	wtfc	Interest Income Federal Home Loan Banks And Federal Reserve Bank Stock InterestIncomeFederalHomeLoanBanksAndFederalReserveBankStock	2223000	USD
CY2018Q2	wtfc	Interest Income Federal Home Loan Banks And Federal Reserve Bank Stock InterestIncomeFederalHomeLoanBanksAndFederalReserveBankStock	1455000	USD
	wtfc	Interest Income Federal Home Loan Banks And Federal Reserve Bank Stock InterestIncomeFederalHomeLoanBanksAndFederalReserveBankStock	2753000	USD
CY2017Q2	wtfc	Interest Income On Brokerage Customer Receivables InterestIncomeOnBrokerageCustomerReceivables	156000	USD
	wtfc	Interest Income On Brokerage Customer Receivables InterestIncomeOnBrokerageCustomerReceivables	323000	USD
CY2018Q2	wtfc	Interest Income On Brokerage Customer Receivables InterestIncomeOnBrokerageCustomerReceivables	167000	USD
	wtfc	Interest Income On Brokerage Customer Receivables InterestIncomeOnBrokerageCustomerReceivables	324000	USD
	wtfc	Issuance Of Common Shares Resulting From Exercise Of Stock Options Employee Stock Purchase Plan And Conversion Of Common Stock Warrants IssuanceOfCommonSharesResultingFromExerciseOfStockOptionsEmployeeStockPurchasePlanAndConversionOfCommonStockWarrants	17120000	USD
	wtfc	Issuance Of Common Shares Resulting From Exercise Of Stock Options Employee Stock Purchase Plan And Conversion Of Common Stock Warrants IssuanceOfCommonSharesResultingFromExerciseOfStockOptionsEmployeeStockPurchasePlanAndConversionOfCommonStockWarrants	11747000	USD
CY2017Q2	wtfc	Loan Forgiveness LoanForgiveness	0	USD
	wtfc	Loan Forgiveness LoanForgiveness	0	USD
CY2018Q2	wtfc	Loan Forgiveness LoanForgiveness	0	USD
	wtfc	Loan Forgiveness LoanForgiveness	0	USD
CY2017Q2	wtfc	Loans And Leases Receivable Net Of Deferred Income Including Covered Loans LoansAndLeasesReceivableNetOfDeferredIncomeIncludingCoveredLoans	20793451000	USD
CY2017Q4	wtfc	Loans And Leases Receivable Net Of Deferred Income Including Covered Loans LoansAndLeasesReceivableNetOfDeferredIncomeIncludingCoveredLoans	21640797000	USD
CY2018Q2	wtfc	Loans And Leases Receivable Net Of Deferred Income Including Covered Loans LoansAndLeasesReceivableNetOfDeferredIncomeIncludingCoveredLoans	22610560000	USD
CY2017Q2	wtfc	Loans Heldfor Investment Fair Value Disclosure LoansHeldforInvestmentFairValueDisclosure	30173000	USD
CY2018Q2	wtfc	Loans Heldfor Investment Fair Value Disclosure LoansHeldforInvestmentFairValueDisclosure	67181000	USD
CY2017Q2	wtfc	Loans Net Of Unearned Income Excluding Covered Loans90 Days Past Due And Still Accruing LoansNetOfUnearnedIncomeExcludingCoveredLoans90DaysPastDueAndStillAccruing	18208000	USD
CY2017Q2	wtfc	Loans Net Of Unearned Income Excluding Covered Loans Current LoansNetOfUnearnedIncomeExcludingCoveredLoansCurrent	20550386000	USD
CY2017Q2	wtfc	Loans Net Of Unearned Income Excluding Covered Loans Nonaccrual Status LoansNetOfUnearnedIncomeExcludingCoveredLoansNonaccrualStatus	61840000	USD
CY2017Q2	wtfc	Marketable Securities Gross Realized Gains Excluding Other Than Temporary Impairments MarketableSecuritiesGrossRealizedGainsExcludingOtherThanTemporaryImpairments	48000	USD
CY2018Q2	wtfc	Marketable Securities Gross Realized Losses Excluding Other Than Temporary Impairments MarketableSecuritiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments	26000	USD
CY2017Q2	wtfc	Mortgage Broker Fee Receivable MortgageBrokerFeeReceivable	87000	USD
CY2017Q4	wtfc	Mortgage Broker Fee Receivable MortgageBrokerFeeReceivable	69000	USD
CY2018Q2	wtfc	Mortgage Broker Fee Receivable MortgageBrokerFeeReceivable	21000	USD
CY2017Q2	wtfc	No Wand Interest Bearing Demand Deposits Percentage NOWandInterestBearingDemandDepositsPercentage	0.11
CY2017Q4	wtfc	No Wand Interest Bearing Demand Deposits Percentage NOWandInterestBearingDemandDepositsPercentage	0.10
CY2018Q2	wtfc	No Wand Interest Bearing Demand Deposits Percentage NOWandInterestBearingDemandDepositsPercentage	0.10
CY2017Q2	wtfc	Net Provision For Covered Loan Losses NetProvisionForCoveredLoanLosses	-61000	USD
	wtfc	Net Provision For Covered Loan Losses NetProvisionForCoveredLoanLosses	-168000	USD
CY2017Q2	wtfc	Non Interest Bearing Percentage NonInterestBearingPercentage	0.28
CY2017Q4	wtfc	Non Interest Bearing Percentage NonInterestBearingPercentage	0.29
CY2018Q2	wtfc	Non Interest Bearing Percentage NonInterestBearingPercentage	0.27
CY2018Q2	wtfc	Non Interest Income Percentage NonInterestIncomePercentage	0.06
	wtfc	Non Interest Income Percentage NonInterestIncomePercentage	0.14
CY2018Q2	wtfc	Number Of Subsidiaries NumberOfSubsidiaries	15	subsidiary
CY2018Q2	wtfc	Number Of Unconsolidated Subsidiary Trusts NumberOfUnconsolidatedSubsidiaryTrusts	11	trust
CY2018Q2	wtfc	Operating Income Loss Percentage OperatingIncomeLossPercentage	0.38
	wtfc	Operating Income Loss Percentage OperatingIncomeLossPercentage	0.39
CY2017Q2	wtfc	Other Comprehensive Income Loss Securities Transferred From Available For Sale To Held To Maturity Adjustment Before Tax OtherComprehensiveIncomeLossSecuritiesTransferredFromAvailableForSaleToHeldToMaturityAdjustmentBeforeTax	22000	USD
	wtfc	Other Comprehensive Income Loss Securities Transferred From Available For Sale To Held To Maturity Adjustment Before Tax OtherComprehensiveIncomeLossSecuritiesTransferredFromAvailableForSaleToHeldToMaturityAdjustmentBeforeTax	1450000	USD
CY2018Q2	wtfc	Other Comprehensive Income Loss Securities Transferred From Available For Sale To Held To Maturity Adjustment Before Tax OtherComprehensiveIncomeLossSecuritiesTransferredFromAvailableForSaleToHeldToMaturityAdjustmentBeforeTax	20000	USD
	wtfc	Other Comprehensive Income Loss Securities Transferred From Available For Sale To Held To Maturity Adjustment Before Tax OtherComprehensiveIncomeLossSecuritiesTransferredFromAvailableForSaleToHeldToMaturityAdjustmentBeforeTax	16000	USD
CY2017Q2	wtfc	Other Comprehensive Income Loss Securities Transferred From Available For Sale To Held To Maturity Adjustment Net Of Tax OtherComprehensiveIncomeLossSecuritiesTransferredFromAvailableForSaleToHeldToMaturityAdjustmentNetOfTax	13000	USD
	wtfc	Other Comprehensive Income Loss Securities Transferred From Available For Sale To Held To Maturity Adjustment Net Of Tax OtherComprehensiveIncomeLossSecuritiesTransferredFromAvailableForSaleToHeldToMaturityAdjustmentNetOfTax	880000	USD
CY2018Q2	wtfc	Other Comprehensive Income Loss Securities Transferred From Available For Sale To Held To Maturity Adjustment Net Of Tax OtherComprehensiveIncomeLossSecuritiesTransferredFromAvailableForSaleToHeldToMaturityAdjustmentNetOfTax	15000	USD
	wtfc	Other Comprehensive Income Loss Securities Transferred From Available For Sale To Held To Maturity Adjustment Net Of Tax OtherComprehensiveIncomeLossSecuritiesTransferredFromAvailableForSaleToHeldToMaturityAdjustmentNetOfTax	12000	USD
CY2017Q2	wtfc	Other Comprehensive Income Loss Securities Transferred From Available For Sale To Held To Maturity Adjustment Tax Effect OtherComprehensiveIncomeLossSecuritiesTransferredFromAvailableForSaleToHeldToMaturityAdjustmentTaxEffect	9000	USD
	wtfc	Other Comprehensive Income Loss Securities Transferred From Available For Sale To Held To Maturity Adjustment Tax Effect OtherComprehensiveIncomeLossSecuritiesTransferredFromAvailableForSaleToHeldToMaturityAdjustmentTaxEffect	570000	USD
CY2018Q2	wtfc	Other Comprehensive Income Loss Securities Transferred From Available For Sale To Held To Maturity Adjustment Tax Effect OtherComprehensiveIncomeLossSecuritiesTransferredFromAvailableForSaleToHeldToMaturityAdjustmentTaxEffect	5000	USD
	wtfc	Other Comprehensive Income Loss Securities Transferred From Available For Sale To Held To Maturity Adjustment Tax Effect OtherComprehensiveIncomeLossSecuritiesTransferredFromAvailableForSaleToHeldToMaturityAdjustmentTaxEffect	4000	USD
CY2018Q2	wtfc	Ownership Interest Percentage In Unconsolidated Subsidary Trusts OwnershipInterestPercentageInUnconsolidatedSubsidaryTrusts	1
	wtfc	Payments Received From The Fdic For Indemnification PaymentsReceivedFromTheFDICForIndemnification	791000	USD
	wtfc	Payments Received From The Fdic For Indemnification PaymentsReceivedFromTheFDICForIndemnification	0	USD
	wtfc	Paymentsto Acquire Equity Securitieswithout Readily Determinable Fair Value PaymentstoAcquireEquitySecuritieswithoutReadilyDeterminableFairValue	0	USD
	wtfc	Paymentsto Acquire Equity Securitieswithout Readily Determinable Fair Value PaymentstoAcquireEquitySecuritieswithoutReadilyDeterminableFairValue	2741000	USD
CY2017Q2	wtfc	Percentage Of Covered Loans PercentageOfCoveredLoans	0.00
CY2017Q4	wtfc	Percentage Of Covered Loans PercentageOfCoveredLoans	0.00
CY2018Q2	wtfc	Percentage Of Covered Loans PercentageOfCoveredLoans	0.00
CY2017Q2	wtfc	Percentage Of Loans And Leases Receivable Gross Carrying Amount PercentageOfLoansAndLeasesReceivableGrossCarryingAmount	1
CY2017Q4	wtfc	Percentage Of Loans And Leases Receivable Gross Carrying Amount PercentageOfLoansAndLeasesReceivableGrossCarryingAmount	1
CY2018Q2	wtfc	Percentage Of Loans And Leases Receivable Gross Carrying Amount PercentageOfLoansAndLeasesReceivableGrossCarryingAmount	1
CY2017Q2	wtfc	Percentage Of Loans Net Of Unearned Income Including Covered Loans PercentageOfLoansNetOfUnearnedIncomeIncludingCoveredLoans	1
CY2017Q4	wtfc	Percentage Of Loans Net Of Unearned Income Including Covered Loans PercentageOfLoansNetOfUnearnedIncomeIncludingCoveredLoans	1
CY2018Q2	wtfc	Percentage Of Loans Net Of Unearned Income Including Covered Loans PercentageOfLoansNetOfUnearnedIncomeIncludingCoveredLoans	1
	wtfc	Proceeds From Payments To Federal Home Loan Bank Borrowings ProceedsFromPaymentsToFederalHomeLoanBankBorrowings	163000000	USD
	wtfc	Proceeds From Payments To Federal Home Loan Bank Borrowings ProceedsFromPaymentsToFederalHomeLoanBankBorrowings	107000000	USD
CY2017Q2	wtfc	Proceedsfrom Saleof Equity Securities With Readily Determinable Fair Value ProceedsfromSaleofEquitySecuritiesWithReadilyDeterminableFairValue	0	USD
	wtfc	Proceedsfrom Saleof Equity Securities With Readily Determinable Fair Value ProceedsfromSaleofEquitySecuritiesWithReadilyDeterminableFairValue	0	USD
CY2018Q2	wtfc	Proceedsfrom Saleof Equity Securities With Readily Determinable Fair Value ProceedsfromSaleofEquitySecuritiesWithReadilyDeterminableFairValue	0	USD
	wtfc	Proceedsfrom Saleof Equity Securities With Readily Determinable Fair Value ProceedsfromSaleofEquitySecuritiesWithReadilyDeterminableFairValue	0	USD
CY2017Q2	wtfc	Proceedsfrom Salesand Capital Distributionsof Equity Securities Without Readily Determinable Fair Value ProceedsfromSalesandCapitalDistributionsofEquitySecuritiesWithoutReadilyDeterminableFairValue	0	USD
	wtfc	Proceedsfrom Salesand Capital Distributionsof Equity Securities Without Readily Determinable Fair Value ProceedsfromSalesandCapitalDistributionsofEquitySecuritiesWithoutReadilyDeterminableFairValue	0	USD
CY2018Q2	wtfc	Proceedsfrom Salesand Capital Distributionsof Equity Securities Without Readily Determinable Fair Value ProceedsfromSalesandCapitalDistributionsofEquitySecuritiesWithoutReadilyDeterminableFairValue	616000	USD
	wtfc	Proceedsfrom Salesand Capital Distributionsof Equity Securities Without Readily Determinable Fair Value ProceedsfromSalesandCapitalDistributionsofEquitySecuritiesWithoutReadilyDeterminableFairValue	616000	USD
CY2017Q2	wtfc	Provision For Covered Loan Losses Before Benefit Attributable To Fdic Loss Share Agreements ProvisionForCoveredLoanLossesBeforeBenefitAttributableToFdicLossShareAgreements	303000	USD
	wtfc	Provision For Covered Loan Losses Before Benefit Attributable To Fdic Loss Share Agreements ProvisionForCoveredLoanLossesBeforeBenefitAttributableToFdicLossShareAgreements	838000	USD
CY2018Q2	wtfc	Real Estate Acquired Through Foreclosure Fair Value Losses Recognized RealEstateAcquiredThroughForeclosureFairValueLossesRecognized	1511000	USD
	wtfc	Real Estate Acquired Through Foreclosure Fair Value Losses Recognized RealEstateAcquiredThroughForeclosureFairValueLossesRecognized	3669000	USD
CY2017Q2	wtfc	Reclassification From Accumulated Other Comprehensive Income Amortization Of Unrealized Gains Losses On Investment Securities Transferred To Held To Maturity From Available For Sale Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeAmortizationOfUnrealizedGainsLossesOnInvestmentSecuritiesTransferredToHeldToMaturityFromAvailableForSaleNetOfTax	13000	USD
	wtfc	Reclassification From Accumulated Other Comprehensive Income Amortization Of Unrealized Gains Losses On Investment Securities Transferred To Held To Maturity From Available For Sale Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeAmortizationOfUnrealizedGainsLossesOnInvestmentSecuritiesTransferredToHeldToMaturityFromAvailableForSaleNetOfTax	880000	USD
CY2018Q2	wtfc	Reclassification From Accumulated Other Comprehensive Income Amortization Of Unrealized Gains Losses On Investment Securities Transferred To Held To Maturity From Available For Sale Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeAmortizationOfUnrealizedGainsLossesOnInvestmentSecuritiesTransferredToHeldToMaturityFromAvailableForSaleNetOfTax	15000	USD
	wtfc	Reclassification From Accumulated Other Comprehensive Income Amortization Of Unrealized Gains Losses On Investment Securities Transferred To Held To Maturity From Available For Sale Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeAmortizationOfUnrealizedGainsLossesOnInvestmentSecuritiesTransferredToHeldToMaturityFromAvailableForSaleNetOfTax	12000	USD
CY2017Q2	wtfc	Reclassification From To Allowance For Unfunded Lending Related Commitments ReclassificationFromToAllowanceForUnfundedLendingRelatedCommitments	106000	USD
	wtfc	Reclassification From To Allowance For Unfunded Lending Related Commitments ReclassificationFromToAllowanceForUnfundedLendingRelatedCommitments	-32000	USD
CY2018Q2	wtfc	Reclassification From To Allowance For Unfunded Lending Related Commitments ReclassificationFromToAllowanceForUnfundedLendingRelatedCommitments	0	USD
	wtfc	Reclassification From To Allowance For Unfunded Lending Related Commitments ReclassificationFromToAllowanceForUnfundedLendingRelatedCommitments	26000	USD
CY2017Q2	wtfc	Recoveries Of Covered Loans Charged Off RecoveriesOfCoveredLoansChargedOff	178000	USD
	wtfc	Recoveries Of Covered Loans Charged Off RecoveriesOfCoveredLoansChargedOff	926000	USD
CY2018Q2	wtfc	Revenues Percentage RevenuesPercentage	0.13
	wtfc	Revenues Percentage RevenuesPercentage	0.16
CY2018Q2	wtfc	Securities By A Single Nongoverment Sponsored Issuer Exceeding Ten Percent Of Shareholders Equity SecuritiesByASingleNongovermentSponsoredIssuerExceedingTenPercentOfShareholdersEquity	0	security
CY2017Q2	wtfc	Securities Owned Not Readily Marketable Downward Adjustment SecuritiesOwnedNotReadilyMarketableDownwardAdjustment	0	USD
	wtfc	Securities Owned Not Readily Marketable Downward Adjustment SecuritiesOwnedNotReadilyMarketableDownwardAdjustment	0	USD
CY2018Q2	wtfc	Securities Owned Not Readily Marketable Downward Adjustment SecuritiesOwnedNotReadilyMarketableDownwardAdjustment	0	USD
	wtfc	Securities Owned Not Readily Marketable Downward Adjustment SecuritiesOwnedNotReadilyMarketableDownwardAdjustment	0	USD
CY2017Q2	wtfc	Securities Owned Not Readily Marketable Period Increase Decrease SecuritiesOwnedNotReadilyMarketablePeriodIncreaseDecrease	0	USD
	wtfc	Securities Owned Not Readily Marketable Period Increase Decrease SecuritiesOwnedNotReadilyMarketablePeriodIncreaseDecrease	0	USD
CY2018Q2	wtfc	Securities Owned Not Readily Marketable Period Increase Decrease SecuritiesOwnedNotReadilyMarketablePeriodIncreaseDecrease	-25000	USD
	wtfc	Securities Owned Not Readily Marketable Period Increase Decrease SecuritiesOwnedNotReadilyMarketablePeriodIncreaseDecrease	381000	USD
CY2017Q2	wtfc	Servicing Assets At Fair Value Additions From Loans Sold With Servicing Retained ServicingAssetsAtFairValueAdditionsFromLoansSoldWithServicingRetained	5448000	USD
	wtfc	Servicing Assets At Fair Value Additions From Loans Sold With Servicing Retained ServicingAssetsAtFairValueAdditionsFromLoansSoldWithServicingRetained	8214000	USD
CY2018Q2	wtfc	Servicing Assets At Fair Value Additions From Loans Sold With Servicing Retained ServicingAssetsAtFairValueAdditionsFromLoansSoldWithServicingRetained	7889000	USD
	wtfc	Servicing Assets At Fair Value Additions From Loans Sold With Servicing Retained ServicingAssetsAtFairValueAdditionsFromLoansSoldWithServicingRetained	12048000	USD
	wtfc	Stock Issued During Period Value Stock Options And Warrants Exercised StockIssuedDuringPeriodValueStockOptionsAndWarrantsExercised	15061000	USD
	wtfc	Stock Issued During Period Value Stock Options And Warrants Exercised StockIssuedDuringPeriodValueStockOptionsAndWarrantsExercised	9659000	USD
CY2017	wtfc	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit	-7600000	USD
CY2017Q2	wtfc	Trade Date Securities Payable TradeDateSecuritiesPayable	5151000	USD
CY2017Q4	wtfc	Trade Date Securities Payable TradeDateSecuritiesPayable	0	USD
CY2018Q2	wtfc	Trade Date Securities Payable TradeDateSecuritiesPayable	0	USD
CY2017Q2	wtfc	Trade Date Securities Receivable TradeDateSecuritiesReceivable	133130000	USD
CY2017Q4	wtfc	Trade Date Securities Receivable TradeDateSecuritiesReceivable	90014000	USD
CY2018Q2	wtfc	Trade Date Securities Receivable TradeDateSecuritiesReceivable	450000	USD
CY2018Q2	wtfc	Trust Preferred Securities Proportion To Junior Subordinated Debentures TrustPreferredSecuritiesProportionToJuniorSubordinatedDebentures	0.97
CY2017Q2	wtfc	Wealth Management Deposits WealthManagementDeposits	2464162000	USD
CY2017Q4	wtfc	Wealth Management Deposits WealthManagementDeposits	2323699000	USD
CY2018Q2	wtfc	Wealth Management Deposits WealthManagementDeposits	2523572000	USD
CY2017Q2	wtfc	Wealth Management Deposits Percentage WealthManagementDepositsPercentage	0.11
CY2017Q4	wtfc	Wealth Management Deposits Percentage WealthManagementDepositsPercentage	0.10
CY2018Q2	wtfc	Wealth Management Deposits Percentage WealthManagementDepositsPercentage	0.11
CY2017Q2	wtfc	Wealth Management Receivable WealthManagementReceivable	7679000	USD
CY2017Q4	wtfc	Wealth Management Receivable WealthManagementReceivable	8102000	USD
CY2018Q2	wtfc	Wealth Management Receivable WealthManagementReceivable	8199000	USD
CY2017Q2	wtfc	Weighted Average Stated Interest Rate Basis Points WeightedAverageStatedInterestRateBasisPoints	0.0195
	wtfc	Weighted Average Stated Interest Rate Basis Points WeightedAverageStatedInterestRateBasisPoints	0.0184
CY2018Q2	wtfc	Weighted Average Stated Interest Rate Basis Points WeightedAverageStatedInterestRateBasisPoints	0.0157
	wtfc	Weighted Average Stated Interest Rate Basis Points WeightedAverageStatedInterestRateBasisPoints	0.0173

Files In Submission

Name	View Source	Status
0001015328-18-000161-index-headers.html	Edgar Link	pending
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0001015328-18-000161.txt	Edgar Link	pending
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exhibit3112018q2.htm	Edgar Link	pending
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wtfc-20180630.xml	Edgar Link	completed
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$WTFC
WINTRUST FINANCIAL CORP Stock $wtfc

2018 Q2 Form 10-Q Financial Statement

#000101532818000161 Filed on August 08, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WTFC WINTRUST FINANCIAL CORP Stock $wtfc

2018 Q2 Form 10-Q Financial Statement

#000101532818000161 Filed on August 08, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WTFC
WINTRUST FINANCIAL CORP Stock $wtfc