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Note 8 - Loans (Tables) | 9 Months Ended
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Sep. 30, 2019
Notes Tables |
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] |
|  | September 30, 2019 |  |  | December 31, 2018 |
|  | (In thousands) |
Commercial loans |  | $ | 2,668,061 |  |  | $ | 2,741,965 |
Residential mortgage loans |  |  | 4,010,739 |  |  |  | 3,693,853 |
Commercial mortgage loans |  |  | 7,135,599 |  |  |  | 6,724,200 |
Equity lines |  |  | 315,252 |  |  |  | 249,967 |
Real estate construction loans |  |  | 593,816 |  |  |  | 581,454 |
Installment and other loans |  |  | 5,087 |  |  |  | 4,349 |
Gross loans |  | $ | 14,728,554 |  |  | $ | 13,995,788 |
Allowance for loan losses |  |  | (125,908 | ) |  |  | (122,391 | )
Unamortized deferred loan fees, net |  |  | (1,081 | ) |  |  | (1,565 | )
Total loans, net |  | $ | 14,601,565 |  |  | $ | 13,871,832 |
Loans held for sale |  | $ | 36,778 |  |  | $ | — |
Impaired Financing Receivables [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
|  | Average Recorded Investment |  |  | Interest Income Recognized |  |  | Average Recorded Investment |  |  | Interest Income Recognized |  |  | Average Recorded Investment |  |  | Interest Income Recognized |  |  | Average Recorded Investment |  |  | Interest Income Recognized |
|  | (In thousands) |
Commercial loans |  | $ | 38,659 |  |  | $ | 208 |  |  | $ | 48,772 |  |  | $ | 461 |  |  | $ | 41,132 |  |  | $ | 705 |  |  | $ | 46,920 |  |  | $ | 1,152 |
Real estate construction loans |  |  | 4,662 |  |  |  | — |  |  |  | 5,980 |  |  |  | — |  |  |  | 4,734 |  |  |  | — |  |  |  | 7,490 |  |  |  | — |
Commercial mortgage loans |  |  | 40,699 |  |  |  | 332 |  |  |  | 55,375 |  |  |  | 576 |  |  |  | 51,323 |  |  |  | 1,034 |  |  |  | 59,314 |  |  |  | 1,757 |
Residential mortgage loans and equity lines |  |  | 13,133 |  |  |  | 78 |  |  |  | 13,724 |  |  |  | 108 |  |  |  | 13,126 |  |  |  | 237 |  |  |  | 14,032 |  |  |  | 279 |
Total impaired loans |  | $ | 97,153 |  |  | $ | 618 |  |  | $ | 123,851 |  |  | $ | 1,145 |  |  | $ | 110,315 |  |  | $ | 1,976 |  |  | $ | 127,756 |  |  | $ | 3,188 |
Schedule Of Impaired Loans And Related Allowance And Charge Off [Table Text Block] |
|  | September 30, 2019 |  |  | December 31, 2018 |
|  | Unpaid Principal Balance |  |  | Recorded Investment |  |  | Allowance |  |  | Unpaid Principal Balance |  |  | Recorded Investment |  |  | Allowance |
|  | (In thousands) |
With no allocated allowance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 24,711 |  |  | $ | 20,492 |  |  | $ | — |  |  | $ | 32,015 |  |  | $ | 30,368 |  |  | $ | — |
Real estate construction loans |  |  | 5,776 |  |  |  | 4,629 |  |  |  | — |  |  |  | 5,776 |  |  |  | 4,873 |  |  |  | — |
Commercial mortgage loans |  |  | 11,663 |  |  |  | 11,517 |  |  |  | — |  |  |  | 34,129 |  |  |  | 24,409 |  |  |  | — |
Residential mortgage loans and equity lines |  |  | 6,808 |  |  |  | 6,770 |  |  |  | — |  |  |  | 5,685 |  |  |  | 5,665 |  |  |  | — |
Subtotal |  | $ | 48,958 |  |  | $ | 43,408 |  |  | $ | — |  |  | $ | 77,605 |  |  | $ | 65,315 |  |  | $ | — |
With allocated allowance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 13,251 |  |  | $ | 13,234 |  |  | $ | 744 |  |  | $ | 6,653 |  |  | $ | 6,570 |  |  | $ | 1,837 |
Commercial mortgage loans |  |  | 26,356 |  |  |  | 26,288 |  |  |  | 536 |  |  |  | 27,099 |  |  |  | 27,063 |  |  |  | 877 |
Residential mortgage loans and equity lines |  |  | 7,011 |  |  |  | 5,917 |  |  |  | 221 |  |  |  | 8,934 |  |  |  | 7,938 |  |  |  | 1,088 |
Subtotal |  | $ | 46,618 |  |  | $ | 45,439 |  |  | $ | 1,501 |  |  | $ | 42,686 |  |  | $ | 41,571 |  |  | $ | 3,802 |
Total impaired loans |  | $ | 95,576 |  |  | $ | 88,847 |  |  | $ | 1,501 |  |  | $ | 120,291 |  |  | $ | 106,886 |  |  | $ | 3,802 |
Financing Receivable, Past Due [Table Text Block] |
|  | September 30, 2019 |
|  | 30-59 Days Past Due |  |  | 60-89 Days Past Due |  |  | 90 Days or More Past Due |  |  | Non-accrual Loans |  |  | Total Past Due |  |  | Loans Not Past Due |  |  | Total |
|  | (In thousands) |
Commercial loans |  | $ | 29,905 |  |  | $ | 8,736 |  |  | $ | — |  |  | $ | 22,970 |  |  | $ | 61,611 |  |  | $ | 2,606,450 |  |  | $ | 2,668,061 |
Real estate construction loans |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4,629 |  |  |  | 4,629 |  |  |  | 589,187 |  |  |  | 593,816 |
Commercial mortgage loans |  |  | 2,926 |  |  |  | 3,687 |  |  |  | 683 |  |  |  | 12,330 |  |  |  | 19,626 |  |  |  | 7,115,973 |  |  |  | 7,135,599 |
Residential mortgage loans and equity lines |  |  | 286 |  |  |  | — |  |  |  | — |  |  |  | 7,271 |  |  |  | 7,557 |  |  |  | 4,318,434 |  |  |  | 4,325,991 |
Installment and other loans |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 5,087 |  |  |  | 5,087 |
Total loans |  | $ | 33,117 |  |  | $ | 12,423 |  |  | $ | 683 |  |  | $ | 47,200 |  |  | $ | 93,423 |  |  | $ | 14,635,131 |  |  | $ | 14,728,554 |
|  | December 31, 2018 |
|  | 30-59 Days Past Due |  |  | 60-89 Days Past Due |  |  | 90 Days or More Past Due |  |  | Non-accrual Loans |  |  | Total Past Due |  |  | Loans Not Past Due |  |  | Total |
|  | (In thousands) |
Commercial loans |  | $ | 25,494 |  |  | $ | 2,454 |  |  | $ | 514 |  |  | $ | 18,805 |  |  | $ | 47,267 |  |  | $ | 2,694,698 |  |  | $ | 2,741,965 |
Real estate construction loans |  |  | — |  |  |  | 3,156 |  |  |  | — |  |  |  | 4,872 |  |  |  | 8,028 |  |  |  | 573,426 |  |  |  | 581,454 |
Commercial mortgage loans |  |  | 10,797 |  |  |  | 8,545 |  |  |  | 3,259 |  |  |  | 10,611 |  |  |  | 33,212 |  |  |  | 6,690,988 |  |  |  | 6,724,200 |
Residential mortgage loans and equity lines |  |  | 9,687 |  |  |  | 336 |  |  |  | — |  |  |  | 7,527 |  |  |  | 17,550 |  |  |  | 3,926,270 |  |  |  | 3,943,820 |
Installment and other loans |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4,349 |  |  |  | 4,349 |
Total loans |  | $ | 45,978 |  |  | $ | 14,491 |  |  | $ | 3,773 |  |  | $ | 41,815 |  |  | $ | 106,057 |  |  | $ | 13,889,731 |  |  | $ | 13,995,788 |
Schedule Of Troubled Debt Restructurings [Table Text Block] |
|  | Three Months Ended September 30, 2019 |  |  | September 30, 2019 |
|  | No. of Contracts |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |  |  | Charge-offs |  |  | Specific Reserve |
|  | (In thousands) |
Commercial loans |  |  | 3 |  |  | $ | 7,585 |  |  | $ | 6,165 |  |  | $ | — |  |  | $ | 89 |
Total |  |  | 3 |  |  | $ | 7,585 |  |  | $ | 6,165 |  |  | $ | — |  |  | $ | 89 |
|  | Three Months Ended September 30, 2018 |  |  | September 30, 2018 |
|  | No. of Contracts |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |  |  | Charge-offs |  |  | Specific Reserve |
|  | (In thousands) |
Commercial loans |  |  | 3 |  |  | $ | 4,621 |  |  | $ | 4,621 |  |  | $ | — |  |  | $ | 2,467 |
Commercial mortgage loans |  |  | 1 |  |  |  | 339 |  |  |  | 339 |  |  |  | — |  |  |  | — |
Residential mortgage loans and equity lines |  |  | 2 |  |  |  | 413 |  |  |  | 413 |  |  |  | — |  |  |  | 16 |
Total |  |  | 6 |  |  | $ | 5,373 |  |  | $ | 5,373 |  |  | $ | — |  |  | $ | 2,483 |
|  | Nine Months Ended September 30, 2019 |  |  | September 30, 2019 |
|  | No. of Contracts |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |  |  | Charge-offs |  |  | Specific Reserve |
|  | (In thousands) |
Commercial loans |  |  | 23 |  |  | $ | 25,937 |  |  | $ | 10,814 |  |  | $ | — |  |  | $ | 125 |
Total |  |  | 23 |  |  | $ | 25,937 |  |  | $ | 10,814 |  |  | $ | — |  |  | $ | 125 |
|  | Nine Months Ended September 30, 2018 |  |  | September 30, 2018 |
|  | No. of Contracts |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |  |  | Charge-offs |  |  | Specific Reserve |
|  | (In thousands) |
Commercial loans |  |  | 21 |  |  | $ | 12,212 |  |  | $ | 12,212 |  |  | $ | — |  |  | $ | 2,493 |
Commercial mortgage loans |  |  | 7 |  |  |  | 14,626 |  |  |  | 14,626 |  |  |  | — |  |  |  | 119 |
Residential mortgage loans and equity lines |  |  | 4 |  |  |  | 1,213 |  |  |  | 1,213 |  |  |  | — |  |  |  | 24 |
Total |  |  | 32 |  |  | $ | 28,051 |  |  | $ | 28,051 |  |  | $ | — |  |  | $ | 2,636 |
Financing Receivable, Troubled Debt Restructuring [Table Text Block] |
|  | September 30, 2019 |
|  | Payment Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Payment Deferral |  |  | Total |
|  | (In thousands) |
Accruing TDRs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 10,756 |  |  | $ | — |  |  | $ | — |  |  | $ | 10,756 |
Commercial mortgage loans |  |  | 782 |  |  |  | 5,757 |  |  |  | 18,936 |  |  |  | 25,475 |
Residential mortgage loans |  |  | 2,931 |  |  |  | 319 |  |  |  | 2,166 |  |  |  | 5,416 |
Total accruing TDRs |  | $ | 14,469 |  |  | $ | 6,076 |  |  | $ | 21,102 |  |  | $ | 41,647 |
|  | December 31, 2018 |
|  | Payment Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Payment Deferral |  |  | Total |
|  | (In thousands) |
Accruing TDRs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 18,135 |  |  | $ | — |  |  | $ | — |  |  | $ | 18,135 |
Commercial mortgage loans |  |  | 14,022 |  |  |  | 7,420 |  |  |  | 19,418 |  |  |  | 40,860 |
Residential mortgage loans |  |  | 3,353 |  |  |  | 327 |  |  |  | 2,396 |  |  |  | 6,076 |
Total accruing TDRs |  | $ | 35,510 |  |  | $ | 7,747 |  |  | $ | 21,814 |  |  | $ | 65,071 |
Non Accrual Troubled Debt Restructurings [Table Text Block] |
|  | September 30, 2019 |
|  | Payment Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Payment Deferral |  |  | Total |
|  | (In thousands) |
Non-accrual TDRs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 18,057 |  |  | $ | — |  |  | $ | — |  |  | $ | 18,057 |
Residential mortgage loans |  |  | 1,629 |  |  |  | — |  |  |  | 101 |  |  |  | 1,730 |
Total non-accrual TDRs |  | $ | 19,686 |  |  | $ | — |  |  | $ | 101 |  |  | $ | 19,787 |
|  | December 31, 2018 |
|  | Payment Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Payment Deferral |  |  | Total |
|  | (In thousands) |
Non-accrual TDRs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 13,771 |  |  | $ | — |  |  | $ | — |  |  | $ | 13,771 |
Commercial mortgage loans |  |  | 3,682 |  |  |  | — |  |  |  | 4,884 |  |  |  | 8,566 |
Residential mortgage loans |  |  | 1,741 |  |  |  | — |  |  |  | 111 |  |  |  | 1,852 |
Total non-accrual TDRs |  | $ | 19,194 |  |  | $ | — |  |  | $ | 4,995 |  |  | $ | 24,189 |
Activity Within The Troubled Debt Resturings [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
|  | (In thousands) |
Accruing TDRs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 64,898 |  |  | $ | 84,487 |  |  | $ | 65,071 |  |  | $ | 68,566 |
New restructurings |  |  | 240 |  |  |  | 2,589 |  |  |  | 15,432 |  |  |  | 25,036 |
Restructured loans restored to accrual status |  |  | — |  |  |  | 577 |  |  |  | — |  |  |  | 2,895 |
Charge-offs |  |  | (1,341 | ) |  |  | — |  |  |  | (1,341 | ) |  |  | — |
Payments |  |  | (22,150 | ) |  |  | (13,055 | ) |  |  | (36,219 | ) |  |  | (19,801 | )
Restructured loans placed on non-accrual status |  |  | — |  |  |  | — |  |  |  | (1,296 | ) |  |  | (2,098 | )
Ending balance |  | $ | 41,647 |  |  | $ | 74,598 |  |  | $ | 41,647 |  |  | $ | 74,598 |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
|  | (In thousands) |
Non-accrual TDRs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 22,457 |  |  | $ | 30,347 |  |  | $ | 24,189 |  |  | $ | 33,415 |
New restructurings |  |  | 7,345 |  |  |  | 2,784 |  |  |  | 10,505 |  |  |  | 3,015 |
Restructured loans placed on non-accrual status |  |  | — |  |  |  | — |  |  |  | 1,296 |  |  |  | 2,098 |
Charge-offs |  |  | (2,389 | ) |  |  | — |  |  |  | (3,607 | ) |  |  | (161 | )
Payments |  |  | (7,626 | ) |  |  | (4,836 | ) |  |  | (12,596 | ) |  |  | (7,754 | )
Restructured loans restored to accrual status |  |  | — |  |  |  | (577 | ) |  |  | — |  |  |  | (2,895 | )
Ending balance |  | $ | 19,787 |  |  | $ | 27,718 |  |  | $ | 19,787 |  |  | $ | 27,718 |
Financing Receivable Credit Quality Indicators [Table Text Block] |
|  | September 30, 2019 |
|  | Pass/Watch |  |  | Special Mention |  |  | Substandard |  |  | Doubtful |  |  | Total |
|  | (In thousands) |
Commercial loans |  | $ | 2,432,623 |  |  | $ | 151,265 |  |  | $ | 84,173 |  |  | $ | — |  |  | $ | 2,668,061 |
Real estate construction loans |  |  | 514,725 |  |  |  | 74,462 |  |  |  | 4,629 |  |  |  | — |  |  |  | 593,816 |
Commercial mortgage loans |  |  | 6,824,241 |  |  |  | 233,155 |  |  |  | 78,203 |  |  |  | — |  |  |  | 7,135,599 |
Residential mortgage loans and equity lines |  |  | 4,317,793 |  |  |  | 927 |  |  |  | 7,271 |  |  |  | — |  |  |  | 4,325,991 |
Installment and other loans |  |  | 5,087 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 5,087 |
Total gross loans |  | $ | 14,094,469 |  |  | $ | 459,809 |  |  | $ | 174,276 |  |  | $ | — |  |  | $ | 14,728,554 |
|  | December 31, 2018 |
|  | Pass/Watch |  |  | Special Mention |  |  | Substandard |  |  | Doubtful |  |  | Total |
|  | (In thousands) |
Commercial loans |  | $ | 2,603,901 |  |  | $ | 87,987 |  |  | $ | 50,077 |  |  | $ | — |  |  | $ | 2,741,965 |
Real estate construction loans |  |  | 514,406 |  |  |  | 62,175 |  |  |  | 4,873 |  |  |  | — |  |  |  | 581,454 |
Commercial mortgage loans |  |  | 6,337,368 |  |  |  | 304,791 |  |  |  | 82,041 |  |  |  | — |  |  |  | 6,724,200 |
Residential mortgage loans and equity lines |  |  | 3,934,762 |  |  |  | — |  |  |  | 9,058 |  |  |  | — |  |  |  | 3,943,820 |
Installment and other loans |  |  | 4,349 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4,349 |
Total gross loans |  | $ | 13,394,786 |  |  | $ | 454,953 |  |  | $ | 146,049 |  |  | $ | — |  |  | $ | 13,995,788 |
Financing Receivable, Allowance for Credit Loss [Table Text Block] |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Residential |  |  |  |  |  |  |  |  |
|  |  |  |  |  | Real Estate |  |  | Commercial |  |  | Mortgage Loans |  |  | Installment |  |  |  |  |
|  | Commercial |  |  | Construction |  |  | Mortgage |  |  | and |  |  | and Other |  |  |  |  |
|  | Loans |  |  | Loans |  |  | Loans |  |  | Equity Lines |  |  | Loans |  |  | Total |
|  | (In thousands) |
June 30, 2019 Ending Balance |  | $ | 54,293 |  |  | $ | 21,010 |  |  | $ | 33,154 |  |  | $ | 14,164 |  |  | $ | 30 |  |  | $ | 122,651 |
Provision/(reversal) for possible credit losses |  |  | 7,400 |  |  |  | (2,690 | ) |  |  | (4,648 | ) |  |  | (2,057 | ) |  |  | (5 | ) |  |  | (2,000 | )
Charge-offs |  |  | (3,356 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (3,356 | )
Recoveries |  |  | 212 |  |  |  | 3,378 |  |  |  | 4,961 |  |  |  | 62 |  |  |  | — |  |  |  | 8,613 |
Net (charge-offs)/recoveries |  |  | (3,144 | ) |  |  | 3,378 |  |  |  | 4,961 |  |  |  | 62 |  |  |  | — |  |  |  | 5,257 |
September 30, 2019 Ending Balance |  | $ | 58,549 |  |  | $ | 21,698 |  |  | $ | 33,467 |  |  | $ | 12,169 |  |  | $ | 25 |  |  | $ | 125,908 |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Residential |  |  |  |  |  |  |  |  |
|  |  |  |  |  | Real Estate |  |  | Commercial |  |  | Mortgage Loans |  |  | Installment |  |  |  |  |
|  | Commercial |  |  | Construction |  |  | Mortgage |  |  | and |  |  | and Other |  |  |  |  |
|  | Loans |  |  | Loans |  |  | Loans |  |  | Equity Lines |  |  | Loans |  |  | Total |
|  | (In thousands) |
June 30, 2018 Ending Balance |  | $ | 55,179 |  |  | $ | 20,663 |  |  | $ | 33,976 |  |  | $ | 12,062 |  |  | $ | 19 |  |  | $ | 121,899 |
Provision/(reversal) for possible credit losses |  |  | 1,270 |  |  |  | 519 |  |  |  | (4,138 | ) |  |  | 842 |  |  |  | 7 |  |  |  | (1,500 | )
Charge-offs |  |  | (122 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (122 | )
Recoveries |  |  | 187 |  |  |  | 44 |  |  |  | 2,944 |  |  |  | 5 |  |  |  | — |  |  |  | 3,180 |
Net recoveries |  |  | 65 |  |  |  | 44 |  |  |  | 2,944 |  |  |  | 5 |  |  |  | — |  |  |  | 3,058 |
September 30, 2018 Ending Balance |  | $ | 56,514 |  |  | $ | 21,226 |  |  | $ | 32,782 |  |  | $ | 12,909 |  |  | $ | 26 |  |  | $ | 123,457 |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Residential |  |  |  |  |  |  |  |  |
|  |  |  |  |  | Real Estate |  |  | Commercial |  |  | Mortgage Loans |  |  | Installment |  |  |  |  |
|  | Commercial |  |  | Construction |  |  | Mortgage |  |  | and |  |  | and Other |  |  |  |  |
|  | Loans |  |  | Loans |  |  | Loans |  |  | Equity Lines |  |  | Loans |  |  | Total |
|  | (In thousands) |
2019 Beginning Balance |  | $ | 54,978 |  |  | $ | 19,626 |  |  | $ | 33,487 |  |  | $ | 14,282 |  |  | $ | 18 |  |  | $ | 122,391 |
Provision/(reversal) for possible credit losses |  |  | 8,262 |  |  |  | (2,540 | ) |  |  | (5,234 | ) |  |  | (2,495 | ) |  |  | 7 |  |  |  | (2,000 | )
Charge-offs |  |  | (6,300 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (6,300 | )
Recoveries |  |  | 1,609 |  |  |  | 4,612 |  |  |  | 5,214 |  |  |  | 382 |  |  |  | — |  |  |  | 11,817 |
Net (charge-offs)/recoveries |  |  | (4,691 | ) |  |  | 4,612 |  |  |  | 5,214 |  |  |  | 382 |  |  |  | — |  |  |  | 5,517 |
September 30, 2019 Ending Balance |  | $ | 58,549 |  |  | $ | 21,698 |  |  | $ | 33,467 |  |  | $ | 12,169 |  |  | $ | 25 |  |  | $ | 125,908 |
Reserve for impaired loans |  | $ | 744 |  |  | $ | — |  |  | $ | 536 |  |  | $ | 221 |  |  | $ | — |  |  | $ | 1,501 |
Reserve for non-impaired loans |  | $ | 57,805 |  |  | $ | 21,698 |  |  | $ | 32,931 |  |  | $ | 11,948 |  |  | $ | 25 |  |  | $ | 124,407 |
Reserve for off-balance sheet credit commitments |  | $ | 2,505 |  |  | $ | 1,608 |  |  | $ | 121 |  |  | $ | 313 |  |  | $ | 3 |  |  | $ | 4,550 |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Residential |  |  |  |  |  |  |  |  |
|  |  |  |  |  | Real Estate |  |  | Commercial |  |  | Mortgage Loans |  |  | Installment |  |  |  |  |
|  | Commercial |  |  | Construction |  |  | Mortgage |  |  | and |  |  | and Other |  |  |  |  |
|  | Loans |  |  | Loans |  |  | Loans |  |  | Equity Lines |  |  | Loans |  |  | Total |
|  | (In thousands) |
2018 Beginning Balance |  | $ | 49,796 |  |  | $ | 24,838 |  |  | $ | 37,610 |  |  | $ | 11,013 |  |  | $ | 22 |  |  | $ | 123,279 |
Provision/(reversal) for possible credit losses |  |  | 6,097 |  |  |  | (3,744 | ) |  |  | (8,672 | ) |  |  | 1,815 |  |  |  | 4 |  |  |  | (4,500 | )
Charge-offs |  |  | (629 | ) |  |  | — |  |  |  | (390 | ) |  |  | — |  |  |  | — |  |  |  | (1,019 | )
Recoveries |  |  | 1,250 |  |  |  | 132 |  |  |  | 4,234 |  |  |  | 81 |  |  |  | — |  |  |  | 5,697 |
Net recoveries |  |  | 621 |  |  |  | 132 |  |  |  | 3,844 |  |  |  | 81 |  |  |  | — |  |  |  | 4,678 |
September 30, 2018 Ending Balance |  | $ | 56,514 |  |  | $ | 21,226 |  |  | $ | 32,782 |  |  | $ | 12,909 |  |  | $ | 26 |  |  | $ | 123,457 |
Reserve for impaired loans |  | $ | 2,506 |  |  | $ | — |  |  | $ | 917 |  |  | $ | 281 |  |  | $ | — |  |  | $ | 3,704 |
Reserve for non-impaired loans |  | $ | 54,008 |  |  | $ | 21,226 |  |  | $ | 31,865 |  |  | $ | 12,628 |  |  | $ | 26 |  |  | $ | 119,753 |
Reserve for off-balance sheet credit commitments |  | $ | 1,615 |  |  | $ | 1,174 |  |  | $ | 78 |  |  | $ | 215 |  |  | $ | 6 |  |  | $ | 3,088 |
Impairment Method [Member] |
Notes Tables |
Impaired Financing Receivables [Table Text Block] |
|  | September 30, 2019 |
|  |  |  |  |  | Real Estate |  |  | Commercial |  |  | Residential |  |  | Installment |  |  |  |  |
|  | Commercial |  |  | Construction |  |  | Mortgage |  |  | Mortgage Loans |  |  | and |  |  |  |  |
|  | Loans |  |  | Loans |  |  | Loans |  |  | and Equity Lines |  |  | Other Loans |  |  | Total |
|  | (In thousands) |
Loans individually evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 744 |  |  | $ | — |  |  | $ | 536 |  |  | $ | 221 |  |  | $ | — |  |  | $ | 1,501 |
Balance |  | $ | 33,726 |  |  | $ | 4,629 |  |  | $ | 37,805 |  |  | $ | 12,687 |  |  | $ | — |  |  | $ | 88,847 |
Loans collectively evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 57,805 |  |  | $ | 21,698 |  |  | $ | 32,931 |  |  | $ | 11,948 |  |  | $ | 25 |  |  | $ | 124,407 |
Balance |  | $ | 2,634,335 |  |  | $ | 589,187 |  |  | $ | 7,097,794 |  |  | $ | 4,313,304 |  |  | $ | 5,087 |  |  | $ | 14,639,707 |
Total allowance |  | $ | 58,549 |  |  | $ | 21,698 |  |  | $ | 33,467 |  |  | $ | 12,169 |  |  | $ | 25 |  |  | $ | 125,908 |
Total balance |  | $ | 2,668,061 |  |  | $ | 593,816 |  |  | $ | 7,135,599 |  |  | $ | 4,325,991 |  |  | $ | 5,087 |  |  | $ | 14,728,554 |
|  | December 31, 2018 |
|  |  |  |  |  | Real Estate |  |  | Commercial |  |  | Residential |  |  | Installment |  |  |  |  |
|  | Commercial |  |  | Construction |  |  | Mortgage |  |  | Mortgage Loans |  |  | and |  |  |  |  |
|  | Loans |  |  | Loans |  |  | Loans |  |  | and Equity Lines |  |  | Other Loans |  |  | Total |
|  | (In thousands) |
Loans individually evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 1,837 |  |  | $ | — |  |  | $ | 877 |  |  | $ | 1,088 |  |  | $ | — |  |  | $ | 3,802 |
Balance |  | $ | 36,940 |  |  | $ | 4,873 |  |  | $ | 51,471 |  |  | $ | 13,602 |  |  | $ | — |  |  | $ | 106,886 |
Loans collectively evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 53,141 |  |  | $ | 19,626 |  |  | $ | 32,610 |  |  | $ | 13,194 |  |  | $ | 18 |  |  | $ | 118,589 |
Balance |  | $ | 2,705,025 |  |  | $ | 576,581 |  |  | $ | 6,672,729 |  |  | $ | 3,930,218 |  |  | $ | 4,349 |  |  | $ | 13,888,902 |
Total allowance |  | $ | 54,978 |  |  | $ | 19,626 |  |  | $ | 33,487 |  |  | $ | 14,282 |  |  | $ | 18 |  |  | $ | 122,391 |
Total balance |  | $ | 2,741,965 |  |  | $ | 581,454 |  |  | $ | 6,724,200 |  |  | $ | 3,943,820 |  |  | $ | 4,349 |  |  | $ | 13,995,788 |

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