0000001 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Consolidated Balance Sheet (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Consolidated Balance Sheet (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Consolidated Statement of Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Consolidated Statement of Comprehensive Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Consolidated Statement of Cash Flows (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Consolidated Statement of Changes in Shareholders' Equity link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - Consolidated Statement of Changes in Shareholders' Equity (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Significant accounting policies link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Investment securities link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Loans and allowance for loan losses link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Borrowings link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Shareholders' equity link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Revenue from contracts with customers link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Pension plans and other postretirement benefits link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Earnings per common share link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Comprehensive income link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Derivative financial instruments link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Variable interest entities and asset securitizations link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Fair value measurements link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Commitments and contingencies link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Segment information link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Relationship with BLG and Bayview Financial link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Significant accounting policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Significant accounting policies (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Investment securities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Loans and allowance for loan losses (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Borrowings (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Shareholders' equity (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Revenue from contracts with customers (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Pension plans and other postretirement benefits (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Earnings per common share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Comprehensive income (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Derivative financial instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Variable interest entities and asset securitizations (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Fair value measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Commitments and contingencies (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Segment information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Significant accounting policies - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Significant accounting policies - Schedule of Prior Period Adjustments (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Investment securities - Amortized Cost and Estimated Fair Value of Investment Securities (Detail) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Investment securities - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Investment securities - Investment Securities in Continuous Unrealized Loss Position (Detail) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Investment securities - Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity (Detail) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Loans and allowance for loan losses - Summary of Current, Past Due and Nonaccrual Loans (Detail) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Loans and allowance for loan losses - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Loans and allowance for loan losses - Summary of Loan grades applied various classes of Commercial and Real Estate Loans (Detail) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Loans and allowance for loan losses - Summary of loans in Accrual and Nonaccrual Status (Detail) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Loans and allowance for loan losses - Changes in Allowance for Credit Losses (Detail) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Loans and allowance for loan losses - Loan and Leases Considered Nonaccrual and Interest Income Recognized on Loans (Detail) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Loans and allowance for loan losses - Loan Modification Activities to Borrowers Experiencing Financial Difficulty on Financing Receivables (Detail) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Loans and allowance for loan losses - Effect of Loan Modification on Weighted-average Remaining Life (Detail) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Loans and allowance for loan losses - Summary of Payment Status of Loans Modified (Detail) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Borrowings - Schedule of Borrowings (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Borrowings - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Shareholders' equity - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Shareholders' equity - Issued and Outstanding Preferred Stock (Detail) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Revenue from contracts with customers - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Revenue from contracts with customers - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Revenue from contracts with customers - Summary of Sources of Noninterest Income that are Subject to Revenue Recognition Accounting Guidance (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Pension plans and other postretirement benefits - Net Periodic Defined Benefit Cost for Defined Benefit Plans (Detail) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Pension plans and other postretirement benefits - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Earnings per common share - Computations of Basic Earnings Per Common Share (Detail) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Earnings per common share - Computations of Diluted Earnings Per Common Share (Detail) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Earnings per common share - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Comprehensive income - Components of Other Comprehensive Income (Loss) and Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Net Income (Detail) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Comprehensive income - Accumulated Other Comprehensive Income (Loss), Net (Detail) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Derivative financial instruments - Information about Interest Rate Swap Agreements (Detail) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Derivative financial instruments - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Derivative financial instruments - Information about Fair Values of Derivative Instruments in Consolidated Balance Sheet (Detail) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Derivative financial instruments - Information about Fair Values of Derivative Instruments in Consolidated Statement of Income (Detail) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Derivative financial instruments - Information about Hedged Items Included in Consolidated Balance Sheet (Detail) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Derivative Financial Instruments - Schedule of Fair Value with Netting (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Variable interest entities and asset securitizations - Asset-backed Notes Issued to Investors (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Variable interest entities and asset securitizations - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Variable interest entities and asset securitizations - Summary of Carrying Amount (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Fair value measurements - Assets and Liabilities Measured at Estimated Fair Value on Recurring Basis (Detail) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Fair value measurements - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - Fair value measurements - Mortgage Servicing Rights at Fair Value (Detail) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - Fair value measurements - Mortgage Servicing Rights Fair Value Measurement Inputs (Detail) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - Fair Value Measurements - Assets and Liabilities Measured at Estimated Fair Value on Nonrecurring Basis (Detail) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - Fair value measurements - Carrying Amounts and Estimated Fair Value for Financial Instrument Assets (Liabilities) (Detail) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - Commitments and contingencies - Commitments and Contingent Liabilities Outstanding (Detail) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - Commitments and contingencies - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - Segment information - Information about Company's Segments (Detail) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - Segment information - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - Relationship with BLG and Bayview Financial (Detail) link:presentationLink link:calculationLink link:definitionLink