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Note 5 - Loans (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] |
|  | 201 7 |  |  | 201 6 |
|  | (In thousands ) |
Type of Loans : |  |  |  |  |  |  |  |
Commercial loans |  | $ | 2,461,266 |  |  | $ | 2,248,187 |
Real estate construction loans |  |  | 678,805 |  |  |  | 548,088 |
Commercial mortgage loans |  |  | 6,482,695 |  |  |  | 5,785,248 |
Residential mortgage loans |  |  | 3,062,050 |  |  |  | 2,444,048 |
Equity lines |  |  | 180,304 |  |  |  | 171,711 |
Installment and other loans |  |  | 5,170 |  |  |  | 3,993 |
Gross loans |  |  | 12,870,290 |  |  |  | 11,201,275 |
Less : |  |  |  |  |  |  |  |
Allowance for loan losses |  |  | (123,279 | ) |  |  | (118,966 | )
Unamortized deferred loan fees |  |  | (3,245 | ) |  |  | (4,994 | )
Total loans and leases, net |  | $ | 12,743,766 |  |  | $ | 11,077,315 |
Loans held for sale |  | $ | 8,000 |  |  | $ | 7,500 |
Schedule of Related Party Transactions [Table Text Block] |
|  | December 31 , |
|  | 201 7 |  |  | 201 6 |
|  | (In thousands ) |
Balance at beginning of year |  | $ | 51,327 |  |  | $ | 91,620 |
Additional loans made |  |  | 53,584 |  |  |  | 62,206 |
Payment received |  |  | (38,318 | ) |  |  | (102,499 | )
Balance at end of year |  | $ | 66,593 |  |  | $ | 51,327 |
Schedule Of Impaired Loans And Related Allowance And Charge Off [Table Text Block] |
|  | Impaired Loan s |
|  | As of December 31, 201 7 |  |  | As of December 31, 201 6 |
|  | Unpaid Principal Balanc e |  |  | Recorded Investment |  |  | Allowance |  |  | Unpaid Principal Balanc e |  |  | Recorded Investment |  |  | Allowance |
|  | (In thousands ) |
With no allocated allowanc e |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 43,483 |  |  | $ | 42,702 |  |  | $ | - |  |  | $ | 24,037 |  |  | $ | 23,121 |  |  | $ | - |
Real estate construction loans |  |  | 8,821 |  |  |  | 8,185 |  |  |  | - |  |  |  | 5,776 |  |  |  | 5,458 |  |  |  | - |
Commercial mortgage loans |  |  | 37,825 |  |  |  | 31,029 |  |  |  | - |  |  |  | 60,522 |  |  |  | 54,453 |  |  |  | - |
Residential mortgage and equity lines |  |  | 1,301 |  |  |  | 1,301 |  |  |  | - |  |  |  | 5,472 |  |  |  | 5,310 |  |  |  | - |
Subtotal |  | $ | 91,430 |  |  | $ | 83,217 |  |  | $ | - |  |  | $ | 95,807 |  |  | $ | 88,342 |  |  | $ | - |
With allocated allowanc e |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 891 |  |  | $ | 793 |  |  | $ | 43 |  |  | $ | 5,216 |  |  | $ | 4,640 |  |  | $ | 1,827 |
Commercial mortgage loans |  |  | 21,733 |  |  |  | 21,635 |  |  |  | 1,738 |  |  |  | 10,158 |  |  |  | 10,017 |  |  |  | 573 |
Residential mortgage and equity lines |  |  | 13,022 |  |  |  | 11,708 |  |  |  | 353 |  |  |  | 13,263 |  |  |  | 12,075 |  |  |  | 396 |
Subtotal |  | $ | 35,646 |  |  | $ | 34,136 |  |  | $ | 2,134 |  |  | $ | 28,637 |  |  | $ | 26,732 |  |  | $ | 2,796 |
Total impaired loans |  | $ | 127,076 |  |  | $ | 117,353 |  |  | $ | 2,134 |  |  | $ | 124,444 |  |  | $ | 115,074 |  |  | $ | 2,796 |
Impaired Financing Receivables [Table Text Block] |
|  | For the year ended December 31 , |
|  | 201 7 |  |  | 201 6 |  |  | 201 5 |  |  | 201 7 |  |  | 201 6 |  |  | 201 5 |
|  | Average Recorded Investment |  |  | Interest Income Recognized |
|  | (In thousands ) |
Commercial loans |  | $ | 26,957 |  |  | $ | 21,199 |  |  | $ | 23,960 |  |  | $ | 1,303 |  |  | $ | 767 |  |  | $ | 546 |
Real estate construction loans |  |  | 26,695 |  |  |  | 10,362 |  |  |  | 22,066 |  |  |  | - |  |  |  | - |  |  |  | 261 |
Commercial mortgage loans |  |  | 58,635 |  |  |  | 81,905 |  |  |  | 100,118 |  |  |  | 1,618 |  |  |  | 2,214 |  |  |  | 2,708 |
Residential mortgage and equity lines |  |  | 14,780 |  |  |  | 17,553 |  |  |  | 16,801 |  |  |  | 381 |  |  |  | 481 |  |  |  | 482 |
Subtotal |  | $ | 127,067 |  |  | $ | 131,019 |  |  | $ | 162,945 |  |  | $ | 3,302 |  |  | $ | 3,462 |  |  | $ | 3,997 |
Schedule of Financing Receivables, Non Accrual Status [Table Text Block] |
|  | 201 7 |  |  | 201 6 |  |  | 201 5 |
|  | (In thousands ) |
Non-accrual portfolio loans |  | $ | 48,787 |  |  | $ | 49,682 |  |  | $ | 52,130 |
Non-accrual loans held-for-sale |  |  | 8,000 |  |  |  | 7,500 |  |  |  | 5,944 |
Total non-accrual loans |  | $ | 56,787 |  |  | $ | 57,182 |  |  | $ | 58,074 |
Contractual interest due |  | $ | 3,254 |  |  | $ | 1,573 |  |  | $ | 5,732 |
Interest recognized |  |  | 86 |  |  |  | 95 |  |  |  | 119 |
Net interest foregone |  | $ | 3,168 |  |  | $ | 1,478 |  |  | $ | 5,613 |
Past Due Financing Receivables [Table Text Block] |
|  | As of December 31, 201 7 |
|  | 30-59 Days Past Du e |  |  | 60-89 Days Past Du e |  |  | 90 Days or More Past Du e |  |  | Non-accrual Loan s |  |  | Total Past Du e |  |  | Loans Not Past Du e |  |  | Tota l |
Type of Loans : |  | (In thousands ) |
Commercial loans |  | $ | 11,079 |  |  | $ | 5,192 |  |  | $ | - |  |  | $ | 14,296 |  |  | $ | 30,567 |  |  | $ | 2,430,699 |  |  | $ | 2,461,266 |
Real estate construction loans |  |  | 3,028 |  |  |  | - |  |  |  | - |  |  |  | 8,185 |  |  |  | 11,213 |  |  |  | 667,592 |  |  |  | 678,805 |
Commercial mortgage loans |  |  | 17,573 |  |  |  | 5,602 |  |  |  | - |  |  |  | 19,820 |  |  |  | 42,995 |  |  |  | 6,439,700 |  |  |  | 6,482,695 |
Residential mortgage loans |  |  | 6,613 |  |  |  | 732 |  |  |  | - |  |  |  | 6,486 |  |  |  | 13,831 |  |  |  | 3,228,523 |  |  |  | 3,242,354 |
Installment and other loans |  |  | 103 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 103 |  |  |  | 5,067 |  |  |  | 5,170 |
Total loans |  | $ | 38,396 |  |  | $ | 11,526 |  |  | $ | - |  |  | $ | 48,787 |  |  | $ | 98,709 |  |  | $ | 12,771,581 |  |  | $ | 12,870,290 |
|  | As of December 31, 201 6 |
|  | 30-59 Days Past Du e |  |  | 60-89 Days Past Du e |  |  | 90 Days or More Past Du e |  |  | Non-accrual Loan s |  |  | Total Past Du e |  |  | Loans Not Past Du e |  |  | Tota l |
Type of Loans : |  | (In thousands ) |
Commercial loans |  | $ | 22,753 |  |  | $ | 27,190 |  |  | $ | - |  |  | $ | 15,710 |  |  | $ | 65,653 |  |  | $ | 2,182,534 |  |  | $ | 2,248,187 |
Real estate construction loans |  |  | 10,390 |  |  |  | 5,835 |  |  |  | - |  |  |  | 5,458 |  |  |  | 21,683 |  |  |  | 526,405 |  |  |  | 548,088 |
Commercial mortgage loans |  |  | 5,886 |  |  |  | 700 |  |  |  | - |  |  |  | 20,078 |  |  |  | 26,664 |  |  |  | 5,758,584 |  |  |  | 5,785,248 |
Residential mortgage loans |  |  | 4,390 |  |  |  | - |  |  |  | - |  |  |  | 8,436 |  |  |  | 12,826 |  |  |  | 2,602,933 |  |  |  | 2,615,759 |
Installment and other loans |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 3,993 |  |  |  | 3,993 |
Total loans |  | $ | 43,419 |  |  | $ | 33,725 |  |  | $ | - |  |  | $ | 49,682 |  |  | $ | 126,826 |  |  | $ | 11,074,449 |  |  | $ | 11,201,275 |
Schedule Of Troubled Debt Restructurings [Table Text Block] |
. |  | No. of Contract s |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |  |  | Specific Reserve |  |  | Charge-offs |
|  | (Dollars in thousands ) |
Commercial loans |  |  | 16 |  |  | $ | 29,590 |  |  | $ | 29,590 |  |  | $ | 7 |  |  | $ | - |
Real estate construction loans |  |  | 2 |  |  |  | 27,683 |  |  |  | 27,683 |  |  |  | - |  |  |  | - |
Commercial mortgage loans |  |  | 9 |  |  |  | 19,380 |  |  |  | 19,075 |  |  |  | 1,496 |  |  |  | 305 |
Residential mortgage and equity lines |  |  | 4 |  |  |  | 1,088 |  |  |  | 1,088 |  |  |  | 53 |  |  |  | - |
Total |  |  | 31 |  |  | $ | 77,741 |  |  | $ | 77,436 |  |  | $ | 1,556 |  |  | $ | 305 |
|  | No. of Contract s |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |  |  | Specific Reserve |  |  | Charge-offs |
|  | (Dollars in thousands ) |
Commercial loans |  |  | 24 |  |  | $ | 30,215 |  |  | $ | 29,385 |  |  | $ | 1,746 |  |  | $ | 830 |
Commercial mortgage loans |  |  | 4 |  |  |  | 4,153 |  |  |  | 4,153 |  |  |  | 34 |  |  |  | - |
Residential mortgage and equity lines |  |  | 2 |  |  |  | 367 |  |  |  | 367 |  |  |  | - |  |  |  | - |
Total |  |  | 30 |  |  | $ | 34,735 |  |  | $ | 33,905 |  |  | $ | 1,780 |  |  | $ | 830 |
|  | No. of Contract s |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |  |  | Specific Reserve |  |  | Charge-off |
|  | (Dollars in thousands ) |
Commercial loans |  |  | 3 |  |  | $ | 1,181 |  |  | $ | 1,181 |  |  | $ | 2 |  |  | $ | - |
Commercial mortgage loans |  |  | 20 |  |  |  | 17,204 |  |  |  | 17,204 |  |  |  | 708 |  |  |  | - |
Residential mortgage and equity lines |  |  | 5 |  |  |  | 1,522 |  |  |  | 1,374 |  |  |  | 42 |  |  |  | 148 |
Total |  |  | 28 |  |  | $ | 19,907 |  |  | $ | 19,759 |  |  | $ | 752 |  |  | $ | 148 |
Troubled Debt Restructurings on Financing Receivables [Table Text Block] |
|  | December 31, 201 7 |
Accruing TDR s |  | Payment Deferra l |  |  | Rate Reductio n |  |  | Rate Reduction and Payment Deferra l |  |  | Tota l |
|  | (In thousands ) |
Commercial loans |  | $ | 29,199 |  |  | $ | - |  |  | $ | - |  |  | $ | 29,199 |
Commercial mortgage loans |  |  | 11,504 |  |  |  | 5,871 |  |  |  | 15,468 |  |  |  | 32,843 |
Residential mortgage loans |  |  | 3,416 |  |  |  | 335 |  |  |  | 2,772 |  |  |  | 6,523 |
Total accruing TDRs |  | $ | 44,119 |  |  | $ | 6,206 |  |  | $ | 18,240 |  |  | $ | 68,565 |
|  | December 31, 201 6 |
Accruing TDR s |  | Payment Deferra l |  |  | Rate Reductio n |  |  | Rate Reduction and Payment Deferra l |  |  | Tota l |
|  | (In thousands ) |
Commercial loans |  | $ | 7,971 |  |  | $ | - |  |  | $ | 4,081 |  |  | $ | 12,052 |
Commercial mortgage loans |  |  | 25,979 |  |  |  | 5,961 |  |  |  | 12,452 |  |  |  | 44,392 |
Residential mortgage loans |  |  | 5,104 |  |  |  | 789 |  |  |  | 3,056 |  |  |  | 8,949 |
Total accruing TDRs |  | $ | 39,054 |  |  | $ | 6,750 |  |  | $ | 19,589 |  |  | $ | 65,393 |
Non Accrual Troubled Debt Restructurings [Table Text Block] |
|  | December 31, 201 7 |
Non-accrual TDR s |  | Payment Deferra l |  |  | Rate Reductio n |  |  | Rate Reduction and Payment Deferra l |  |  | Tota l |
|  | (In thousands ) |
Commercial loans |  | $ | 12,944 |  |  | $ | - |  |  | $ | - |  |  | $ | 12,944 |
Commercial mortgage loans |  |  | 6,231 |  |  |  | 1,677 |  |  |  | 11,113 |  |  |  | 19,021 |
Residential mortgage loans |  |  | 1,297 |  |  |  | - |  |  |  | 154 |  |  |  | 1,451 |
Total non-accrual TDRs |  | $ | 20,472 |  |  | $ | 1,677 |  |  | $ | 11,267 |  |  | $ | 33,416 |
|  | December 31, 201 6 |
Non-accrual TDR s |  | Payment Deferra l |  |  | Rate Reductio n |  |  | Rate Reduction and Payment Deferra l |  |  | Tota l |
|  | (In thousands ) |
Commercial loans |  | $ | 14,565 |  |  | $ | - |  |  | $ | - |  |  | $ | 14,565 |
Commercial mortgage loans |  |  | 2,510 |  |  |  | 1,795 |  |  |  | 10,328 |  |  |  | 14,633 |
Residential mortgage loans |  |  | 356 |  |  |  | - |  |  |  | 168 |  |  |  | 524 |
Total non-accrual TDRs |  | $ | 17,431 |  |  | $ | 1,795 |  |  | $ | 10,496 |  |  | $ | 29,722 |
Activity Within The Troubled Debt Resturings [Table Text Block] |
Accruing TDR s |  | 201 7 |  |  | 201 6 |  |  | 201 5 |
|  | (In thousands ) |
Beginning balance |  | $ | 65,393 |  |  | $ | 81,680 |  |  | $ | 104,356 |
New restructurings |  |  | 73,426 |  |  |  | 26,965 |  |  |  | 17,752 |
Restructured loans restored to accrual status |  |  | - |  |  |  | 10,303 |  |  |  | 723 |
Charge-offs |  |  | - |  |  |  | (88 | ) |  |  | (104 | )
Payments |  |  | (54,095 | ) |  |  | (24,192 | ) |  |  | (30,858 | )
Restructured loans placed on non-accrual |  |  | (13,919 | ) |  |  | (13,984 | ) |  |  | (10,189 | )
Expiration of loan concession |  |  | (2,240 | ) |  |  | (15,291 | ) |  |  | - |
Ending balance |  | $ | 68,565 |  |  | $ | 65,393 |  |  | $ | 81,680 |
Non-accrual TDRs |  | 201 7 |  |  | 201 6 |  |  | 201 5 |
|  | (In thousands ) |
Beginning balance |  | $ | 29,722 |  |  | $ | 39,923 |  |  | $ | 41,618 |
New restructurings |  |  | 4,009 |  |  |  | 6,940 |  |  |  | 2,006 |
Restructured loans placed on non-accrual |  |  | 13,919 |  |  |  | 13,984 |  |  |  | 10,189 |
Charge-offs |  |  | (1,650 | ) |  |  | (5,271 | ) |  |  | (3,246 | )
Payments |  |  | (11,341 | ) |  |  | (15,551 | ) |  |  | (9,921 | )
Foreclosures |  |  | (1,243 | ) |  |  | - |  |  |  | - |
Restructured loans restored to accrual status |  |  | - |  |  |  | (10,303 | ) |  |  | (723 | )
Ending balance |  | $ | 33,416 |  |  | $ | 29,722 |  |  | $ | 39,923 |
Financing Receivable Credit Quality Indicators [Table Text Block] |
|  | As of December 31, 201 7 |
|  | Pass/Watch |  |  | Special Mention |  |  | Substandard |  |  | Doubtful |  |  | Total |
|  | (In thousands) |
Commercial loans |  | $ | 2,281,698 |  |  | $ | 118,056 |  |  | $ | 61,503 |  |  | $ | 9 |  |  | $ | 2,461,266 |
Real estate construction loans |  |  | 616,411 |  |  |  | 54,209 |  |  |  | 8,185 |  |  |  | - |  |  |  | 678,805 |
Commercial mortgage loans |  |  | 6,004,258 |  |  |  | 308,924 |  |  |  | 169,513 |  |  |  | - |  |  |  | 6,482,695 |
Residential mortgage and equity lines |  |  | 3,232,606 |  |  |  | - |  |  |  | 9,748 |  |  |  | - |  |  |  | 3,242,354 |
Installment and other loans |  |  | 5,170 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 5,170 |
Total gross loans |  | $ | 12,140,143 |  |  | $ | 481,189 |  |  | $ | 248,949 |  |  | $ | 9 |  |  | $ | 12,870,290 |
Loans held for sale |  | $ | - |  |  | $ | - |  |  | $ | 8,000 |  |  | $ | - |  |  | $ | 8,000 |
|  | As of December 31, 201 6 |
|  | Pass/Watch |  |  | Special Mention |  |  | Substandard |  |  | Doubtful |  |  | Total |
|  | (In thousands ) |
Commercial loans |  | $ | 2,023,114 |  |  | $ | 140,682 |  |  | $ | 84,293 |  |  | $ | 98 |  |  | $ | 2,248,187 |
Real estate construction loans |  |  | 469,909 |  |  |  | 44,129 |  |  |  | 34,050 |  |  |  | - |  |  |  | 548,088 |
Commercial mortgage loans |  |  | 5,410,623 |  |  |  | 250,221 |  |  |  | 124,404 |  |  |  | - |  |  |  | 5,785,248 |
Residential mortgage and equity lines |  |  | 2,605,834 |  |  |  | - |  |  |  | 9,925 |  |  |  | - |  |  |  | 2,615,759 |
Installment and other loans |  |  | 3,993 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 3,993 |
Total gross loans |  | $ | 10,513,473 |  |  | $ | 435,032 |  |  | $ | 252,672 |  |  | $ | 98 |  |  | $ | 11,201,275 |
Loans held for sale |  | $ | - |  |  | $ | - |  |  | $ | 7,500 |  |  | $ | - |  |  | $ | 7,500 |
Allowance for Credit Losses on Financing Receivables [Table Text Block] |
|  |  |  |  |  | Real Estat e |  |  | Commercia l |  |  | Residentia l |  |  | Installment |  |  |  |  |
|  | Commercia l |  |  | Constructio n |  |  | Mortgag e |  |  | Mortgag e |  |  | and Othe r |  |  |  |  |
|  | Loan s |  |  | Loan s |  |  | Loan s |  |  | and Equity Line s |  |  | Loan s |  |  | Tota l |
|  | (In thousands ) |
2016 Beginning Balance |  | $ | 56,199 |  |  | $ | 22,170 |  |  | $ | 49,440 |  |  | $ | 11,145 |  |  | $ | 9 |  |  | $ | 138,963 |
Provision/(reversal) for loan losses |  |  | 1,815 |  |  |  | (6,819 | ) |  |  | (11,123 | ) |  |  | 475 |  |  |  | 2 |  |  |  | (15,650 | )
Charge-offs |  |  | (12,955 | ) |  |  | - |  |  |  | (5,948 | ) |  |  | - |  |  |  | - |  |  |  | (18,903 | )
Recoveries |  |  | 4,144 |  |  |  | 7,917 |  |  |  | 2,495 |  |  |  | - |  |  |  | - |  |  |  | 14,556 |
Net (Charge-offs)/Recoveries |  |  | (8,811 | ) |  |  | 7,917 |  |  |  | (3,453 | ) |  |  | - |  |  |  | - |  |  |  | (4,347 | )
2016 Ending Balance |  | $ | 49,203 |  |  | $ | 23,268 |  |  | $ | 34,864 |  |  | $ | 11,620 |  |  | $ | 11 |  |  | $ | 118,966 |
Reserve for impaired loans |  | $ | 1,827 |  |  | $ | - |  |  | $ | 573 |  |  | $ | 396 |  |  | $ | - |  |  | $ | 2,796 |
Reserve for non-impaired loans |  | $ | 47,376 |  |  | $ | 23,268 |  |  | $ | 34,291 |  |  | $ | 11,224 |  |  | $ | 11 |  |  | $ | 116,170 |
Reserve for off-balance sheet credit commitments |  | $ | 2,091 |  |  | $ | 940 |  |  | $ | 41 |  |  | $ | 146 |  |  | $ | 6 |  |  | $ | 3,224 |
2017 Beginning Balance |  | $ | 49,203 |  |  | $ | 23,268 |  |  | $ | 34,864 |  |  | $ | 11,620 |  |  | $ | 11 |  |  | $ | 118,966 |
Provision/(reversal) for loan losses |  |  | 117 |  |  |  | 955 |  |  |  | (2,778 | ) |  |  | (798 | ) |  |  | 4 |  |  |  | (2,500 | )
Charge-offs |  |  | (3,313 | ) |  |  | - |  |  |  | (860 | ) |  |  | - |  |  |  | - |  |  |  | (4,173 | )
Recoveries |  |  | 3,402 |  |  |  | 229 |  |  |  | 7,329 |  |  |  | 19 |  |  |  | 7 |  |  |  | 10,986 |
Net (Charge-offs)/Recoveries |  |  | 89 |  |  |  | 229 |  |  |  | 6,469 |  |  |  | 19 |  |  |  | 7 |  |  |  | 6,813 |
2017 Ending Balance |  | $ | 49,796 |  |  | $ | 24,838 |  |  | $ | 37,610 |  |  | $ | 11,013 |  |  | $ | 22 |  |  | $ | 123,279 |
Reserve for impaired loans |  | $ | 43 |  |  | $ | - |  |  | $ | 1,738 |  |  | $ | 353 |  |  | $ | - |  |  | $ | 2,134 |
Reserve for non-impaired loans |  | $ | 49,753 |  |  | $ | 24,838 |  |  | $ | 35,872 |  |  | $ | 10,660 |  |  | $ | 22 |  |  | $ | 121,145 |
Reserve for off-balance sheet credit commitments |  | $ | 2,919 |  |  | $ | 1,360 |  |  | $ | 114 |  |  | $ | 190 |  |  | $ | 5 |  |  | $ | 4,588 |
Schedule of Credit Losses for Financing Receivables, Current [Table Text Block] |
|  | For the year ended December 31 , |
|  | 201 7 |  |  | 201 6 |  |  | 201 5 |
Allowance for Loan Losses |  | (In thousands ) |
Balance at beginning of year |  | $ | 118,966 |  |  | $ | 138,963 |  |  | $ | 161,420 |
Reversal for credit losses |  |  | (2,500 | ) |  |  | (15,650 | ) |  |  | (11,400 | )
Loans charged off |  |  | (4,173 | ) |  |  | (18,903 | ) |  |  | (20,427 | )
Recoveries of charged off loans |  |  | 10,986 |  |  |  | 14,556 |  |  |  | 9,370 |
Balance at end of year |  | $ | 123,279 |  |  | $ | 118,966 |  |  | $ | 138,963 |
Reserve for Off-balance Sheet Credit Commitment s |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of year |  | $ | 3,224 |  |  | $ | 1,494 |  |  | $ | 1,949 |
Provision/(reversal) for credit losses and transfers |  |  | 1,364 |  |  |  | 1,730 |  |  |  | (455 | )
Balance at end of year |  | $ | 4,588 |  |  | $ | 3,224 |  |  | $ | 1,494 |
Impairment Method [Member] |
Notes Tables |
Impaired Financing Receivables [Table Text Block] |
|  |  |  |  |  | Real Estat e |  |  | Commercia l |  |  | Residentia l |  |  |  |  |  |  |  |  |
|  | Commercia l |  |  | Constructio n |  |  | Mortgag e |  |  | Mortgag e |  |  | Consume r |  |  |  |  |
|  | Loan s |  |  | Loan s |  |  | Loan s |  |  | and Equity Line s |  |  | and Othe r |  |  | Tota l |
|  | (In thousands ) |
December 31, 201 7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans individually evaluated for impairmen t |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 43 |  |  | $ | - |  |  | $ | 1,738 |  |  | $ | 353 |  |  | $ | - |  |  | $ | 2,134 |
Balance |  | $ | 43,495 |  |  | $ | 8,185 |  |  | $ | 52,664 |  |  | $ | 13,009 |  |  | $ | - |  |  | $ | 117,353 |
Loans collectively evaluated for impairmen t |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 49,753 |  |  | $ | 24,838 |  |  | $ | 35,872 |  |  | $ | 10,660 |  |  | $ | 22 |  |  | $ | 121,145 |
Balance |  | $ | 2,417,771 |  |  | $ | 670,620 |  |  | $ | 6,430,031 |  |  | $ | 3,229,345 |  |  | $ | 5,170 |  |  | $ | 12,752,937 |
Total allowance |  | $ | 49,796 |  |  | $ | 24,838 |  |  | $ | 37,610 |  |  | $ | 11,013 |  |  | $ | 22 |  |  | $ | 123,279 |
Total balance |  | $ | 2,461,266 |  |  | $ | 678,805 |  |  | $ | 6,482,695 |  |  | $ | 3,242,354 |  |  | $ | 5,170 |  |  | $ | 12,870,290 |
December 31, 201 6 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans individually evaluated for impairmen t |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 1,827 |  |  | $ | - |  |  | $ | 573 |  |  | $ | 396 |  |  | $ | - |  |  | $ | 2,796 |
Balance |  | $ | 27,761 |  |  | $ | 5,458 |  |  | $ | 64,470 |  |  | $ | 17,385 |  |  | $ | - |  |  | $ | 115,074 |
Loans collectively evaluated for impairmen t |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 47,376 |  |  | $ | 23,268 |  |  | $ | 34,291 |  |  | $ | 11,224 |  |  | $ | 11 |  |  | $ | 116,170 |
Balance |  | $ | 2,220,426 |  |  | $ | 542,630 |  |  | $ | 5,720,778 |  |  | $ | 2,598,374 |  |  | $ | 3,993 |  |  | $ | 11,086,201 |
Total allowance |  | $ | 49,203 |  |  | $ | 23,268 |  |  | $ | 34,864 |  |  | $ | 11,620 |  |  | $ | 11 |  |  | $ | 118,966 |
Total balance |  | $ | 2,248,187 |  |  | $ | 548,088 |  |  | $ | 5,785,248 |  |  | $ | 2,615,759 |  |  | $ | 3,993 |  |  | $ | 11,201,275 |

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