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Note 5 - Loans (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] |
|  | As of December 31, |
|  | 2016 |  |  | 2015 |
|  | (In thousands) |
Type of Loans: |  |  |  |  |  |  |  |
Commercial loans |  | $ | 2,248,187 |  |  | $ | 2,316,863 |
Real estate construction loans |  |  | 548,088 |  |  |  | 441,543 |
Commercial mortgage loans |  |  | 5,785,248 |  |  |  | 5,301,218 |
Residential mortgage loans |  |  | 2,444,048 |  |  |  | 1,932,355 |
Equity lines |  |  | 171,711 |  |  |  | 168,980 |
Installment and other loans |  |  | 3,993 |  |  |  | 2,493 |
Gross loans |  |  | 11,201,275 |  |  |  | 10,163,452 |
Less: |  |  |  |  |  |  |  |
Allowance for loan losses |  |  | (118,966 | ) |  |  | (138,963 | )
Unamortized deferred loan fees |  |  | (4,994 | ) |  |  | (8,262 | )
Total loans and leases, net |  | $ | 11,077,315 |  |  | $ | 10,016,227 |
Loans held for sale |  | $ | 7,500 |  |  | $ | 6,676 |
Schedule of Related Party Transactions [Table Text Block] |
|  | December 31, |
|  | 2016 |  |  | 2015 |
|  | (In thousands) |
Balance at beginning of year |  | $ | 91,620 |  |  | $ | 83,812 |
Additional loans made |  |  | 62,206 |  |  |  | 54,975 |
Payment received |  |  | (102,499 | ) |  |  | (47,167 | )
Balance at end of year |  | $ | 51,327 |  |  | $ | 91,620 |
Schedule Of Impaired Loans And Related Allowance And Charge Off [Table Text Block] |
|  | Impaired Loans |
|  | As of December 31, 2016 |  |  | As of December 31, 2015 |
|  | Unpaid Principal Balance |  |  | Recorded Investment |  |  | Allowance |  |  | Unpaid Principal Balance |  |  | Recorded Investment |  |  | Allowance |
|  | (In thousands) |
With no allocated allowance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 24,037 |  |  | $ | 23,121 |  |  | $ | - |  |  | $ | 15,493 |  |  | $ | 6,721 |  |  | $ | - |
Real estate construction loans |  |  | 5,776 |  |  |  | 5,458 |  |  |  | - |  |  |  | 51,290 |  |  |  | 22,002 |  |  |  | - |
Commercial mortgage loans |  |  | 60,522 |  |  |  | 54,453 |  |  |  | - |  |  |  | 59,954 |  |  |  | 54,625 |  |  |  | - |
Residential mortgage and equity lines |  |  | 5,472 |  |  |  | 5,310 |  |  |  | - |  |  |  | 3,233 |  |  |  | 3,026 |  |  |  | - |
Subtotal |  | $ | 95,807 |  |  | $ | 88,342 |  |  | $ | - |  |  | $ | 129,970 |  |  | $ | 86,374 |  |  | $ | - |
With allocated allowance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 5,216 |  |  | $ | 4,640 |  |  | $ | 1,827 |  |  | $ | 7,757 |  |  | $ | 6,847 |  |  | $ | 530 |
Commercial mortgage loans |  |  | 10,158 |  |  |  | 10,017 |  |  |  | 573 |  |  |  | 28,258 |  |  |  | 27,152 |  |  |  | 6,792 |
Residential mortgage and equity lines |  |  | 13,263 |  |  |  | 12,075 |  |  |  | 396 |  |  |  | 14,383 |  |  |  | 13,437 |  |  |  | 427 |
Subtotal |  | $ | 28,637 |  |  | $ | 26,732 |  |  | $ | 2,796 |  |  | $ | 50,398 |  |  | $ | 47,436 |  |  | $ | 7,749 |
Total impaired loans |  | $ | 124,444 |  |  | $ | 115,074 |  |  | $ | 2,796 |  |  | $ | 180,368 |  |  | $ | 133,810 |  |  | $ | 7,749 |
Impaired Financing Receivables [Table Text Block] |
|  | For the year ended December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |  |  | 2016 |  |  | 2015 |  |  | 2014 |
|  | Average Recorded Investment |  |  | Interest Income Recognized |
|  | (In thousands) |
Commercial loans |  | $ | 21,199 |  |  | $ | 23,960 |  |  | $ | 26,128 |  |  | $ | 767 |  |  | $ | 546 |  |  | $ | 878 |
Real estate construction loans |  |  | 10,362 |  |  |  | 22,066 |  |  |  | 32,439 |  |  |  | - |  |  |  | 261 |  |  |  | 264 |
Commercial mortgage loans |  |  | 81,905 |  |  |  | 100,118 |  |  |  | 114,248 |  |  |  | 2,214 |  |  |  | 2,708 |  |  |  | 3,735 |
Residential mortgage and equity lines |  |  | 17,553 |  |  |  | 16,801 |  |  |  | 17,411 |  |  |  | 481 |  |  |  | 482 |  |  |  | 462 |
Subtotal |  | $ | 131,019 |  |  | $ | 162,945 |  |  | $ | 190,226 |  |  | $ | 3,462 |  |  | $ | 3,997 |  |  | $ | 5,339 |
Schedule of Financing Receivables, Non Accrual Status [Table Text Block] |
|  | 2016 |  |  | 2015 |  |  | 2014 |
|  | (In thousands) |
Non-accrual portfolio loans |  | $ | 49,682 |  |  | $ | 52,130 |  |  | $ | 70,163 |
Non-accrual loans held-for-sale |  |  | 7,500 |  |  |  | 5,944 |  |  |  | 973 |
Total non-accrual loans |  | $ | 57,182 |  |  | $ | 58,074 |  |  | $ | 71,136 |
Contractual interest due |  | $ | 1,573 |  |  | $ | 5,732 |  |  | $ | 6,663 |
Interest recognized |  |  | 95 |  |  |  | 119 |  |  |  | 217 |
Net interest foregone |  | $ | 1,478 |  |  | $ | 5,613 |  |  | $ | 6,446 |
Past Due Financing Receivables [Table Text Block] |
|  | As of December 31, 2016 |
|  | 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 |
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 |
|  | As of December 31, 2015 |
|  | 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 |
Type of Loans: |  | (In thousands) |
Commercial loans |  | $ | 8,367 |  |  | $ | 221 |  |  | $ | - |  |  | $ | 3,545 |  |  | $ | 12,133 |  |  | $ | 2,304,730 |  |  | $ | 2,316,863 |
Real estate construction loans |  |  | 7,285 |  |  |  | - |  |  |  | - |  |  |  | 16,306 |  |  |  | 23,591 |  |  |  | 417,952 |  |  |  | 441,543 |
Commercial mortgage loans |  |  | 2,243 |  |  |  | 2,223 |  |  |  | - |  |  |  | 25,231 |  |  |  | 29,697 |  |  |  | 5,271,521 |  |  |  | 5,301,218 |
Residential mortgage loans |  |  | 4,959 |  |  |  | 1,038 |  |  |  | - |  |  |  | 7,048 |  |  |  | 13,045 |  |  |  | 2,088,290 |  |  |  | 2,101,335 |
Installment and other loans |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 2,493 |  |  |  | 2,493 |
Total loans |  | $ | 22,854 |  |  | $ | 3,482 |  |  | $ | - |  |  | $ | 52,130 |  |  | $ | 78,466 |  |  | $ | 10,084,986 |  |  | $ | 10,163,452 |
Schedule Of Troubled Debt Restructurings [Table Text Block] |
|  | No. of Contracts |  |  | 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 Contracts |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |  |  | Specific Reserve |  |  | Charge-offs |
|  | (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 |  |  |  | 1,521 |  |  |  | 1,374 |  |  |  | 42 |  |  |  | 148 |
Total |  |  | 28 |  |  | $ | 19,906 |  |  | $ | 19,759 |  |  | $ | 752 |  |  | $ | 148 |
|  | No. of Contracts |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |  |  | Specific Reserve |  |  | Charge-off |
|  | (Dollars in thousands) |
Commercial loans |  |  | 4 |  |  | $ | 10,539 |  |  | $ | 10,539 |  |  | $ | 21 |  |  | $ | - |
Commercial mortgage loans |  |  | 3 |  |  |  | 11,817 |  |  |  | 11,817 |  |  |  | 5,550 |  |  |  | - |
Residential mortgage and equity lines |  |  | 7 |  |  |  | 2,715 |  |  |  | 2,715 |  |  |  | 29 |  |  |  | - |
Total |  |  | 14 |  |  | $ | 25,071 |  |  | $ | 25,071 |  |  | $ | 5,600 |  |  | $ | - |
Troubled Debt Restructurings on Financing Receivables [Table Text Block] |
|  | December 31, 2016 |
Accruing TDRs |  | Payment Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Payment Deferral |  |  | Total |
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 |
|  | December 31, 2015 |
Accruing TDRs |  | Payment Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Payment Deferral |  |  | Total |
|  | (In thousands) |
Commercial loans |  | $ | 8,298 |  |  | $ | - |  |  | $ | 1,726 |  |  | $ | 10,024 |
Real estate construction loans |  |  | - |  |  |  | - |  |  |  | 5,696 |  |  |  | 5,696 |
Commercial mortgage loans |  |  | 16,701 |  |  |  | 6,045 |  |  |  | 33,800 |  |  |  | 56,546 |
Residential mortgage loans |  |  | 5,201 |  |  |  | 999 |  |  |  | 3,214 |  |  |  | 9,414 |
Total accruing TDRs |  | $ | 30,200 |  |  | $ | 7,044 |  |  | $ | 44,436 |  |  | $ | 81,680 |
Non Accrual Troubled Debt Restructurings [Table Text Block] |
|  | December 31, 2016 |
Non-accrual TDRs |  | Payment Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Payment Deferral |  |  | Total |
|  | (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 |
|  | December 31, 2015 |
Non-accrual TDRs |  | Payment Deferral |  |  | Rate Reduction and Payment Deferral |  |  | Total |
|  | (In thousands) |
Commercial loans |  | $ | 1,033 |  |  | $ | 90 |  |  | $ | 1,123 |
Real estate construction loans |  |  | 9,981 |  |  |  | 5,825 |  |  |  | 15,806 |
Commercial mortgage loans |  |  | 1,544 |  |  |  | 20,362 |  |  |  | 21,906 |
Residential mortgage loans |  |  | 388 |  |  |  | 700 |  |  |  | 1,088 |
Total non-accrual TDRs |  | $ | 12,946 |  |  | $ | 26,977 |  |  | $ | 39,923 |
Activity Within The Troubled Debt Resturings [Table Text Block] |
Accruing TDRs |  | 2016 |  |  | 2015 |  |  | 2014 |
|  | (In thousands) |
Beginning balance |  | $ | 81,680 |  |  | $ | 104,356 |  |  | $ | 117,597 |
New restructurings |  |  | 26,965 |  |  |  | 17,752 |  |  |  | 23,740 |
Restructured loans restored to accrual status |  |  | 10,303 |  |  |  | 723 |  |  |  | 962 |
Charge-offs |  |  | (88 | ) |  |  | (104 | ) |  |  | - |
Payments |  |  | (24,192 | ) |  |  | (30,858 | ) |  |  | (13,256 | )
Restructured loans placed on non-accrual |  |  | (13,984 | ) |  |  | (10,189 | ) |  |  | (24,687 | )
Expiration of loan concession |  |  | (15,291 | ) |  |  | - |  |  |  | - |
Ending balance |  | $ | 65,393 |  |  | $ | 81,680 |  |  | $ | 104,356 |
Non-accrual TDRs |  | 2016 |  |  | 2015 |  |  | 2014 |
|  | (In thousands) |
Beginning balance |  | $ | 39,923 |  |  | $ | 41,618 |  |  | $ | 38,769 |
New restructurings |  |  | 6,940 |  |  |  | 2,006 |  |  |  | 1,331 |
Restructured loans placed on non-accrual |  |  | 13,984 |  |  |  | 10,189 |  |  |  | 24,688 |
Charge-offs |  |  | (5,271 | ) |  |  | (3,246 | ) |  |  | (8,938 | )
Payments |  |  | (15,551 | ) |  |  | (9,921 | ) |  |  | (11,710 | )
Foreclosures |  |  | - |  |  |  | - |  |  |  | (1,560 | )
Restructured loans restored to accrual status |  |  | (10,303 | ) |  |  | (723 | ) |  |  | (962 | )
Ending balance |  | $ | 29,722 |  |  | $ | 39,923 |  |  | $ | 41,618 |
Financing Receivable Credit Quality Indicators [Table Text Block] |
|  | As of December 31, 2016 |
|  | 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 |
|  | As of December 31, 2015 |
|  | Pass/Watch |  |  | Special Mention |  |  | Substandard |  |  | Doubtful |  |  | Total |
|  | (In thousands) |
Commercial loans |  | $ | 2,143,270 |  |  | $ | 110,338 |  |  | $ | 61,297 |  |  | $ | 1,958 |  |  | $ | 2,316,863 |
Real estate construction loans |  |  | 413,765 |  |  |  | 5,776 |  |  |  | 21,502 |  |  |  | 500 |  |  |  | 441,543 |
Commercial mortgage loans |  |  | 5,018,199 |  |  |  | 155,553 |  |  |  | 118,196 |  |  |  | 9,270 |  |  |  | 5,301,218 |
Residential mortgage and equity lines |  |  | 2,091,434 |  |  |  | 399 |  |  |  | 9,502 |  |  |  | - |  |  |  | 2,101,335 |
Installment and other loans |  |  | 2,493 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 2,493 |
Total gross loans |  | $ | 9,669,161 |  |  | $ | 272,066 |  |  | $ | 210,497 |  |  | $ | 11,728 |  |  | $ | 10,163,452 |
Loans held for sale |  | $ | 732 |  |  | $ | - |  |  | $ | 5,944 |  |  | $ | - |  |  | $ | 6,676 |
Allowance for Credit Losses on Financing Receivables [Table Text Block] |
|  |  |  |  |  | Real Estate |  |  | Commercial |  |  | Residential |  |  | Installment |  |  |  |  |
|  | Commercial |  |  | Construction |  |  | Mortgage |  |  | Mortgage |  |  | and Other |  |  |  |  |
|  | Loans |  |  | Loans |  |  | Loans |  |  | and Equity Lines |  |  | Loans |  |  | Total |
|  | (In thousands) |
2015 Beginning Balance |  | $ | 47,501 |  |  | $ | 27,652 |  |  | $ | 74,673 |  |  | $ | 11,578 |  |  | $ | 16 |  |  | $ | 161,420 |
Provision/(reversal) for loan losses |  |  | 20,505 |  |  |  | (5,684 | ) |  |  | (26,035 | ) |  |  | (179 | ) |  |  | (7 | ) |  |  | (11,400 | )
Charge-offs |  |  | (16,426 | ) |  |  | - |  |  |  | (3,716 | ) |  |  | (285 | ) |  |  | - |  |  |  | (20,427 | )
Recoveries |  |  | 4,619 |  |  |  | 202 |  |  |  | 4,518 |  |  |  | 31 |  |  |  | - |  |  |  | 9,370 |
Net (Charge-offs)/Recoveries |  |  | (11,807 | ) |  |  | 202 |  |  |  | 802 |  |  |  | (254 | ) |  |  | - |  |  |  | (11,057 | )
2015 Ending Balance |  | $ | 56,199 |  |  | $ | 22,170 |  |  | $ | 49,440 |  |  | $ | 11,145 |  |  | $ | 9 |  |  | $ | 138,963 |
Reserve for impaired loans |  | $ | 530 |  |  | $ | - |  |  | $ | 6,792 |  |  | $ | 427 |  |  | $ | - |  |  | $ | 7,749 |
Reserve for non-impaired loans |  | $ | 55,669 |  |  | $ | 22,170 |  |  | $ | 42,648 |  |  | $ | 10,718 |  |  | $ | 9 |  |  | $ | 131,214 |
Reserve for off-balance sheet credit commitments |  | $ | 810 |  |  | $ | 526 |  |  | $ | 158 |  |  | $ | - |  |  | $ | - |  |  | $ | 1,494 |
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 |
Schedule of Credit Losses for Financing Receivables, Current [Table Text Block] |
|  | December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
Allowance for Loan Losses |  | (In thousands) |
Balance at beginning of year |  | $ | 138,963 |  |  | $ | 161,420 |  |  | $ | 173,889 |
Reversal for credit losses |  |  | (15,650 | ) |  |  | (11,400 | ) |  |  | (10,800 | )
Transfers to reserve for off-balance sheet credit commitments |  |  | - |  |  |  | - |  |  |  | (372 | )
Loans charged off |  |  | (18,903 | ) |  |  | (20,427 | ) |  |  | (22,235 | )
Recoveries of charged off loans |  |  | 14,556 |  |  |  | 9,370 |  |  |  | 20,938 |
Balance at end of year |  | $ | 118,966 |  |  | $ | 138,963 |  |  | $ | 161,420 |
Reserve for Off-balance Sheet Credit Commitments |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of year |  | $ | 1,494 |  |  | $ | 1,949 |  |  | $ | 1,363 |
Provision/(reversal) for credit losses and transfers |  |  | 1,730 |  |  |  | (455 | ) |  |  | 586 |
Balance at end of year |  | $ | 3,224 |  |  | $ | 1,494 |  |  | $ | 1,949 |
Impairment Method [Member] |
Notes Tables |
Impaired Financing Receivables [Table Text Block] |
|  | Commercial Loans |  |  | Real Estate Construction Loans |  |  | Commercial Mortgage Loans |  |  | Residential Mortgage and Equity Lines |  |  | Consumer and Other |  |  | Total |
|  | (In thousands) |
December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans individually evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 1,827 |  |  | $ | - |  |  | $ | 573 |  |  | $ | 396 |  |  | $ | - |  |  | $ | 2,796 |
Balance |  | $ | 27,761 |  |  | $ | 5,458 |  |  | $ | 64,470 |  |  | $ | 17,385 |  |  | $ | - |  |  | $ | 115,074 |
Loans collectively evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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 |
December 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans individually evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 530 |  |  | $ | - |  |  | $ | 6,792 |  |  | $ | 427 |  |  | $ | - |  |  | $ | 7,749 |
Balance |  | $ | 13,568 |  |  | $ | 22,002 |  |  | $ | 81,776 |  |  | $ | 16,464 |  |  | $ | - |  |  | $ | 133,810 |
Loans collectively evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 55,669 |  |  | $ | 22,170 |  |  | $ | 42,648 |  |  | $ | 10,718 |  |  | $ | 9 |  |  | $ | 131,214 |
Balance |  | $ | 2,303,295 |  |  | $ | 419,541 |  |  | $ | 5,219,442 |  |  | $ | 2,084,871 |  |  | $ | 2,493 |  |  | $ | 10,029,642 |
Total allowance |  | $ | 56,199 |  |  | $ | 22,170 |  |  | $ | 49,440 |  |  | $ | 11,145 |  |  | $ | 9 |  |  | $ | 138,963 |
Total balance |  | $ | 2,316,863 |  |  | $ | 441,543 |  |  | $ | 5,301,218 |  |  | $ | 2,101,335 |  |  | $ | 2,493 |  |  | $ | 10,163,452 |

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