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by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Other comprehensive income OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax [Abstract] Financing Receivable, Recorded Investment [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] Interest bearing cash and cash equivalents Interest-Bearing Deposits in Banks and Other Financial Institutions Due after five years through ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Schedule of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Interest income on non-accrual loans Financing Receivable, Nonaccrual, Interest Income Interest Income Reversed Financing Receivable, Nonaccrual, Interest Income Reversed Financing Receivable, Nonaccrual, Interest Income Reversed Short-Term Debt, Type [Domain] Short-Term Debt, Type [Domain] Total non-interest income 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Text Block] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Banking Regulation, Regulatory Capital Requirement, Compliance [Table] Caps and floors purchased Interest Rate Caps and Floors, Purchased [Member] Interest Rate Caps and Floors, Purchased Long-term debt Long-term debt Long-Term Debt Due after one year through five years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Allowance for credit losses on loans Allowance for credit losses on loans Beginning balance Ending balance Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Document Period End Date Document Period End Date Changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Bank Subsidiaries [Member] Beginning balance, preferred stock (in shares) Ending balance, preferred stock (in shares) Preferred Stock, Shares Outstanding Debt instrument, face amount Senior unsecured credit-linked notes Debt Instrument, Face Amount Due after five years through ten years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Basic earnings per common share Earnings Per Share, Basic [Abstract] Derivative, amount of hedged item Derivative, Amount of Hedged Item Debt instrument, term Debt Instrument, 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Due within one year Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, Year One Due after ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Trading income Fees And Commissions, Trading Income Fees And Commissions, Trading Income Accumulated other comprehensive loss, net of taxes Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Percentage of Loans Held for Investment Financing Receivable, Excluding Accrued Interest, Modified in Period, to Total Financing Receivables, Percentage 12 Months or Longer, Fair Value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Regulatory Capital Requirements [Abstract] Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract] Earnings Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Earnings Per Share [Abstract] Earnings Per 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Maturity, Allocated and Single Maturity Date, Year One Due after one year through five years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Diluted earnings per common share Earnings Per Share, Diluted [Abstract] Financing receivable, excluding accrued interest, year one, originated, current fiscal year Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Asset Class [Domain] Asset Class [Domain] Operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Dilutive earnings per common share—weighted average diluted common shares Weighted Average Number of Shares Outstanding, Diluted Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Common stock, dividends, per 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[Table] Commitments to extend credit Commitments to Extend Credit [Member] Estimated fair value, liability derivative Derivative Liability, Subject to Master Netting Arrangement, before Offset Level 3 Fair Value Assets Measured on a Recurring Basis Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Net charge-offs (recoveries) Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Period Increase (Decrease) Award Timing Predetermined Award Timing Predetermined [Flag] Treasury Stock Treasury Stock, Common [Member] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Total short-term borrowings Debt and Lease Obligation Stock-based compensation expense recognized in earnings APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Level 1 Fair Value, Inputs, Level 1 [Member] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Residential MSRs, notional amount Derivative Asset, Notional Amount Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year, writeoff Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff Effect of employee stock-based awards Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements All Executive Categories All Executive Categories [Member] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Residential mortgage-backed securities Residential Mortgage-Backed Securities [Member] Preferred stock, par value Preferred Stock, Par or Stated Value Per Share Transfers of loans from held for investment to held for sale Loan and Lease, Transfer from Held-in-Portfolio to Held-for-Sale Due within one year Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Derivative Liability, Statement of Financial Position [Extensible Enumeration] Derivative Liability, Statement of Financial Position [Extensible Enumeration] Schedule of computation of basic and diluted earnings per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Minimum Minimum [Member] Non-accrual Non-accrual [Member] Non-accrual Dividends, Common Stock, Stock Payments of Ordinary Dividends, Common Stock Expiration Date Trading Arrangement Expiration Date Net increase/(decrease) in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding 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[Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Other liabilities Other Liabilities Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Derivative [Table] Derivative [Table] Held-to-maturity debt securities: Debt Securities, Held-to-Maturity, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Financing Receivable, Allowance for Credit Loss [Table] Common stock, shares authorized Common Stock, Shares Authorized Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Financial Instruments with Off-Balance Sheet Risk Concentration Risk Disclosure [Text Block] Total deposits Deposits, Fair Value Disclosure Due after ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Exercise Price Award Exercise Price Amortized Cost Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss Investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Authorized repurchase amount Share Repurchase Program, Authorized, Amount Unrecognized compensation expense Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Document Quarterly Report Document Quarterly Report Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Swaps Interest Rate Swap [Member] 30-89 Days Past Due Financial Asset, 30 to 89 Days Past Due [Member] Financial Asset, 30 to 89 Days Past Due Special mention Special Mention [Member] Regulatory Ratios and Capital Regulatory Capital Requirements under Banking Regulations [Text Block] Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year, writeoff Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff Proceeds from sales of available-for-sale debt securities Proceeds from Sale of Debt Securities, Available-for-Sale Short-Term Borrowings and Long-Term Debt Debt Disclosure [Text Block] Accrued interest payable Interest Payable Redemption of long-term debt Repayments of Long-Term Debt Held-to-Maturity Securities AOCI, Accumulated Gain (Loss), Debt Securities, Held-to-Maturity, Parent [Member] AOCI, Accumulated Gain (Loss), Debt Securities, Held-to-Maturity, Parent Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Sales/(purchases) of trading debt securities, net Increase (Decrease) in Debt Securities, Trading Equity Component [Domain] Equity Component [Domain] Interest income Interest and Fee Income, Financing Receivable [Abstract] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Measurement Input Type [Domain] Measurement Input Type [Domain] Realized Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Loans held for investment Loans held for investment, net Loans Receivable, Fair Value Disclosure Fair Value Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract] Adoption Date Trading Arrangement Adoption Date Interest rate Debt Instrument, Interest Rate, Stated Percentage Common stock dividends Dividends, Common Stock, Cash Wealth management and trust fee income Wealth Management And Trust Fee Income Wealth Management And Trust Fee Income Total stockholders’ equity Beginning balance Ending balance Equity, Attributable to Parent Equity securities Equity Securities, FV-NI, Current Assets Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Other Liabilities Disclosure [Abstract] Payment Deferral Payment Deferral [Member] Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Schedule of the credit risk profile of loan portfolio by internally assigned grades and nonaccrual status Financing Receivable Credit Quality Indicators [Table Text Block] Impaired loans, carrying value Fair Value Measurement With Unobservable Inputs Reconciliation Non Recurring Basis Asset Value Fair Value Measurement With Unobservable Inputs Reconciliation Non Recurring Basis Asset Value Floating Rate Subordinated Debentures, Due 2032 to 2036 Floating Rate Subordinated Debentures, Due 2032 to 2036 [Member] Floating Rate Subordinated Debentures, Due 2032 to 2036 Fair Value, Measurements, Nonrecurring Fair Value, Nonrecurring [Member] Issuance of stock related to stock-based awards Payments of Stock Issuance Costs Legal and professional Professional Fees Insider Trading Policies and Procedures [Line Items] Estimated Fair Value Fair Value Debt Securities, Held-to-Maturity, Fair Value Number of securities in an unrealized loss position Number of Securities in an Unrealized Loss Position Number of Securities in an Unrealized Loss Position Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Cash-settled units Performance Shares [Member] Loans Receivable Loans Receivable [Member] Commercial Commercial Portfolio Segment [Member] Commercial real estate Commercial Real Estate Portfolio Segment [Member] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain] Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] CET1 to be well capitalized under prompt corrective action provisions, ratio Common Equity Tier 1, Capital Required to be Well Capitalized to Risk Weighted Assets Common Equity Tier 1, Capital Required to be Well Capitalized to Risk Weighted Assets Financing Receivables, Period Past Due [Domain] Financial Asset, Aging [Domain] Anti-dilutive outstanding stock-settled awards Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Stock-settled RSUs Restricted Stock Units (RSUs) [Member] Brokered loan fees Mortgage And Premium Finance Loan Fees Entity Central Index Key Entity Central Index Key Weighted Average Weighted Average [Member] Net interest income after provision for credit losses Interest Income (Expense), after Provision for Loan Loss All Adjustments to Compensation All Adjustments to Compensation [Member] Equity: Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Preferred stock, Liquidation value Preferred Stock, Liquidation Preference, Value Substandard - accruing Substandard [Member] Income Statement [Abstract] Income Statement [Abstract] Stockholders’ equity: Equity, Attributable to Parent [Abstract] Beginning balance Ending balance Financing Receivable Allowance For Credit Losses Off Balance Sheet Liability Financing Receivable Allowance For Credit Losses Off Balance Sheet Liability Document Transition Report Document Transition Report Goodwill and intangibles, net Goodwill And Intangible Assets Net Carrying amount of Goodwill as of the balance sheet date, net of amortization recognized prior to the adoption of any changes in GAAP; and carrying amount of intangible assets (nonphysical assets), net of accumulated amortization. Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Net loss on available-for-sale debt securities Gain (Loss) on Investments Derivatives designated as hedges Designated as Hedging Instrument [Member] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Financing Receivable, Modified [Table] Debt and Equity Securities, Unrealized Gain (Loss) Debt and Equity Securities, Unrealized Gain (Loss) Interest rate on subordinated debentures Debt Instrument, Basis Spread on Variable Rate Interest bearing deposits Interest-Bearing Deposit Liabilities, Domestic Due after ten years Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year 10 City Area Code City Area Code Held-to-maturity Held-to-Maturity Securities [Member] Non-accrual With No Allowance Financing Receivable, Excluding Accrued Interest, Nonaccrual, No Allowance Fair Value Assets Measured On Non Recurring Basis Unobservable Input Reconciliation [Line Items] Fair Value Assets Measured On Non Recurring Basis Unobservable Input Reconciliation [Line Items] Risk-Weighted Assets Calculation Methodology [Domain] Banking Regulation, Risk-Weighted Assets Calculation Methodology [Domain] Accumulated Other Comprehensive Income/(Loss) Total AOCI Attributable to Parent [Member] Shares repurchased, price per share (in dollars per share) Repurchase Of Common Stock Price Per Share Repurchase Of Common Stock Price Per Share Capital Required to be Well Capitalized to Risk Weighted Assets Banking Regulation, Total Risk-Based Capital Ratio, Well Capitalized, Minimum All Individuals All Individuals [Member] Name Forgone Recovery, Individual Name Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Available-for-sale debt securities pledged to secure certain customer repurchase agreements and deposits Debt Securities, Available-for-Sale, Restricted Weighted Average Grant Date Fair Value Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Statement [Line Items] Statement [Line Items] Total assets Assets Assets Total interest expense Interest Expense, Operating Less: Realized net gains/(losses) recognized on securities sold Equity Securities, FV-NI, Realized Gain (Loss) Non-qualified deferred compensation plan liabilities Defined Benefit Plan, Plan Assets, Amount Preferred stock, shares issued Preferred Stock, Shares Issued Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] New Accounting Pronouncements and Changes in Accounting Principles [Abstract] Accounting Standards Update and Change in Accounting Principle [Abstract] Total interest income Interest and Dividend Income, 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