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v3.20.4

Note 4 - Loans (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Servicing Asset, Total | $ 173,500 |  |
Impaired Financing Receivable, Recorded Investment, Total | 95,405 | $ 75,859 |
Impaired Financing Receivable, Average Recorded Investment, Total | 91,353 | 102,583 | $ 122,596
Impaired Financing Receivable, Interest Income, Accrual Method, Total | $ 2,394 | $ 2,084 | 3,166
Percentage Of Charge Off To Contractual Balances For Impaired Loans | 7.10% | 2.10% |
Financing Receivables, Impaired, Troubled Debt Restructuring, Specific Reserve | $ 0 | $ 2,190 | 1,518
Financing Receivable, Troubled Debt Restructuring, Subsequent Default | 0 |  |
Financing Receivable, Troubled Debt Restructuring, Commitment to Lend | 0 |  |
Loans and Leases Receivable, Gross, Total | 15,644,396 | 15,075,481 |
Loans and Leases Receivable, Allowance, Ending Balance | $ 166,538 | 123,224 |
SBA's Paycheck Protection Program [Member] |  |  |
Financing Receivable, Number of Contracts | 1,362 |  |
Loans and Leases Receivable, Gross, Total | $ 240,900 |  |
Loans and Leases Receivable, Forgiven | 23,300 |  |
Loans and Leases Receivable, Allowance, Ending Balance | $ 0 |  |
Minimum [Member] |  |  |
Period Loan Is In Payment Default (Day) | 60 days |  |
Maximum [Member] |  |  |
Period Loan Is In Payment Default (Day) | 90 days |  |
Nonaccrual Loans [Member] |  |  |
Impaired Financing Receivable, Recorded Investment, Total | $ 67,700 | 40,500 |
Accruing Troubled Debt Restructuring [Member] |  |  |
Impaired Financing Receivable, Recorded Investment, Total | 27,700 | 35,400 |
Financing Receivable, Troubled Debt Restructuring | 27,700 | 35,300 |
Financing Receivables, Impaired, Troubled Debt Restructuring, Specific Reserve | 122 | 822 |
Non-accruing Troubled Debt Restructuring [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring | 9,000 | 18,000 |
Financing Receivables, Impaired, Troubled Debt Restructuring, Specific Reserve | 24 | 2,200 |
Residential Portfolio Segment [Member] |  |  |
Servicing Asset, Total | 110,500 |  |
Repossessed Assets, Total | 808 | 1,000 |
Loans and Leases Receivable, Gross, Total | $ 4,145,389 | 4,088,586 |
Financing Receivable with Modifications, Percentage of Total Commercial Real Estate Loans | 1.00% |  |
Financing Receivable, Number of Contracts with Approved Forbearance Requests | 78 |  |
Loans and Leases Receivable with Approved Forbearance Requests, Gross | $ 40,700 |  |
Commercial Real Estate Portfolio Segment [Member] |  |  |
Servicing Asset, Total | 30,900 |  |
Impaired Financing Receivable, Average Recorded Investment, Total | 41,649 | 47,612 | 57,596
Impaired Financing Receivable, Interest Income, Accrual Method, Total | 1,602 | 1,366 | 2,125
Financing Receivables, Impaired, Troubled Debt Restructuring, Specific Reserve |  |  | 111
Loans and Leases Receivable, Gross, Total | 7,555,027 | 7,275,262 |
Loans and Leases Receivable, Allowance, Ending Balance | $ 49,205 | 33,602 |
Financing Receivable, Number of Contracts with Modifications | 23 |  |
Loans and Leases Receivable with Modifications, Gross | $ 81,000 |  |
Financing Receivable with Modifications, Percentage of Total Commercial Real Estate Loans | 1.10% |  |
Commercial Construction Loans [Member] |  |  |
Servicing Asset, Total | $ 29,000 |  |
Commercial Portfolio Segment [Member] |  |  |
Servicing Asset, Total | 3,100 |  |
Impaired Financing Receivable, Average Recorded Investment, Total | 31,009 | 37,475 | 44,486
Impaired Financing Receivable, Interest Income, Accrual Method, Total | 246 | 412 | 685
Financing Receivables, Impaired, Troubled Debt Restructuring, Specific Reserve | 0 | 2,190 | $ 1,384
Loans and Leases Receivable, Gross, Total | 2,836,833 | 2,778,744 |
Loans and Leases Receivable, Allowance, Ending Balance | $ 68,742 | 57,021 |
Financing Receivable, Number of Contracts with Modifications | 12 |  |
Loans and Leases Receivable with Modifications, Gross | $ 56,700 |  |
Financing Receivable with Modifications, Percentage of Total Commercial Real Estate Loans | 2.00% |  |
HELOC Loans [Member] |  |  |
Financing Receivable with Modifications, Percentage of Total Commercial Real Estate Loans | 0.50% |  |
Financing Receivable, Number of Contracts with Approved Forbearance Requests | 7 |  |
Loans and Leases Receivable with Approved Forbearance Requests, Gross | $ 2,200 |  |
Real Estate Loan [Member] |  |  |
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged | 11,200,000 | 10,600,000 |
Commercial Loans [Member] |  |  |
Loans Pledged with Federal Reserve Bank | $ 7,500 | $ 31,900 |

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