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Note 8 - Loans (Details Textual) $ in Thousands | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2021 USD ($) | Sep. 30, 2021 USD ($) | Sep. 03, 2021 USD ($) | Dec. 31, 2020 USD ($) | Sep. 30, 201 USD ($)
Impaired Financing Receivable, Recorded Investment, Total |  | $ 68,682 |  | $ 95,405 |
Percentage Of Charge Off To Contractual Balances For Impaired Loans |  | 10.60% |  | 7.10% |
Financing Receivable, Troubled Debt Restructuring, Subsequent Default | $ 0 |  |  |  |
Financing Receivable, Troubled Debt Restructuring, Commitment to Lend | 0 |  |  |  |
Loans and Leases Receivable, Gross, Total |  | $ 15,976,781 |  | $ 15,644,396 |
Loans and Leases Receivable, Allowance, Ending Balance |  | $ 131,945 |  | 166,538 |
Financing Receivable, Number of Contracts with Modifications |  | 6 |  |  |
Loans and Leases Receivable with Modifications, Gross |  | $ 44,800 |  |  |
Financing Receivable with Modifications, Percentage of Total Commercial Real Estate Loans |  | 0.60% |  |  |
Commercial Portfolio Segment [Member] |  |  |  |  |
Loans and Leases Receivable, Gross, Total |  | $ 2,871,693 |  | 2,836,833 |
Loans and Leases Receivable, Allowance, Ending Balance |  |  |  | 68,742 |
Financing Receivable, Number of Contracts with Modifications |  |  | 3 |  |
Loans and Leases Receivable with Modifications, Gross |  |  | $ 2,800 |  |
Financing Receivable with Modifications, Percentage of Total Commercial Real Estate Loans |  |  | 0.10% |  |
Residential Portfolio Segment [Member] |  |  |  |  |
Loans and Leases Receivable, Gross, Total |  | $ 4,144,789 |  | 4,145,389 |
Financing Receivable with Modifications, Percentage of Total Commercial Real Estate Loans |  | 0.10% |  |  |
Loans and Leases Receivable with Approved Forbearance Requests, Gross |  | $ 5,100 |  |  |
SBA's Paycheck Protection Program [Member] |  |  |  |  |
Financing Receivable, Number of Contracts |  | 1,514 |  |  |
Loans and Leases Receivable, Gross, Total |  | $ 169,400 |  |  |
Loans and Leases Receivable, Forgiven |  | 264,400 |  |  |
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 |  | 68,700 |  | 67,700 |
Accruing Troubled Debt Restructuring [Member] |  |  |  |  |
Impaired Financing Receivable, Recorded Investment, Total |  |  |  | 27,700 |
Financing Receivable, Troubled Debt Restructuring |  | 24,400 |  | 27,700 |
Troubled Debt Restructuring, Specific Reserves |  |  |  | 122 | $ 181
Non-accruing Troubled Debt Restructuring [Member] |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring |  | $ 8,300 |  | 9,000 |
Troubled Debt Restructuring, Specific Reserves |  |  |  | $ 24 | $ 24

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- Definition Amount before allowance of loans and leases held in portfolio with approved forbearance requests, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References No definition available. + Details
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- Definition Amount before allowance of loans and leases held in portfolio with modifications, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References No definition available. + Details
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