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Note 5 - Loans (Tables) | 12 Months Ended
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Dec. 31, 2015
Note 5 - Loans (Tables) [Line Items] |
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] |
|  | As of December 31, |
|  | 2015 |  |  | 2014 |
|  | (In thousands) |
Type of Loans: |  |  |  |  |  |  |  |
Commercial loans |  | $ | 2,316,863 |  |  | $ | 2,382,493 |
Real estate construction loans |  |  | 441,543 |  |  |  | 298,654 |
Commercial mortgage loans |  |  | 5,301,218 |  |  |  | 4,486,443 |
Residential mortgage loans |  |  | 1,932,355 |  |  |  | 1,570,059 |
Equity lines |  |  | 168,980 |  |  |  | 172,879 |
Installment and other loans |  |  | 2,493 |  |  |  | 3,552 |
Gross loans |  |  | 10,163,452 |  |  |  | 8,914,080 |
Less: |  |  |  |  |  |  |  |
Allowance for loan losses |  |  | (138,963 | ) |  |  | (161,420 | )
Unamortized deferred loan fees |  |  | (8,262 | ) |  |  | (12,392 | )
Total loans and leases, net |  | $ | 10,016,227 |  |  | $ | 8,740,268 |
Loans held for sale |  | $ | 6,676 |  |  | $ | 973 |
Schedule of Related Party Transactions [Table Text Block] |
|  | December 31, |
|  | 2015 |  |  | 2014 |
|  | (In thousands) |
Balance at beginning of year |  | $ | 83,812 |  |  | $ | 126,985 |
Additional loans made |  |  | 54,975 |  |  |  | 76,610 |
Payment received |  |  | (47,167 | ) |  |  | (119,783 | )
Balance at end of year |  | $ | 91,620 |  |  | $ | 83,812 |
Schedule of Impaired Loans and Related Allowance and Charge-off [Table Text Block] |
|  | Impaired Loans |
|  | As of December 31, 2015 |  |  | As of December 31, 2014 |
|  | Unpaid Principal Balance |  |  | Recorded Investment |  |  | Allowance |  |  | Unpaid Principal Balance |  |  | Recorded Investment |  |  | Allowance |
|  | (In thousands) |
With no allocated allowance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 15,493 |  |  | $ | 6,721 |  |  | $ | - |  |  | $ | 19,479 |  |  | $ | 18,452 |  |  | $ | - |
Real estate construction loans |  |  | 51,290 |  |  |  | 22,002 |  |  |  | - |  |  |  | 32,924 |  |  |  | 17,025 |  |  |  | - |
Commercial mortgage loans |  |  | 59,954 |  |  |  | 54,625 |  |  |  | - |  |  |  | 77,474 |  |  |  | 75,172 |  |  |  | - |
Residential mortgage and equity lines |  |  | 3,233 |  |  |  | 3,026 |  |  |  | - |  |  |  | 2,518 |  |  |  | 2,518 |  |  |  | - |
Subtotal |  | $ | 129,970 |  |  | $ | 86,374 |  |  | $ | - |  |  | $ | 132,395 |  |  | $ | 113,167 |  |  | $ | - |
With allocated allowance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 7,757 |  |  | $ | 6,847 |  |  | $ | 530 |  |  | $ | 7,003 |  |  | $ | 5,037 |  |  | $ | 1,263 |
Real estate construction loans |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 19,006 |  |  |  | 8,703 |  |  |  | 1,077 |
Commercial mortgage loans |  |  | 28,258 |  |  |  | 27,152 |  |  |  | 6,792 |  |  |  | 38,197 |  |  |  | 34,022 |  |  |  | 8,993 |
Residential mortgage and equity lines |  |  | 14,383 |  |  |  | 13,437 |  |  |  | 427 |  |  |  | 14,019 |  |  |  | 13,590 |  |  |  | 465 |
Subtotal |  | $ | 50,398 |  |  | $ | 47,436 |  |  | $ | 7,749 |  |  | $ | 78,225 |  |  | $ | 61,352 |  |  | $ | 11,798 |
Total impaired loans |  | $ | 180,368 |  |  | $ | 133,810 |  |  | $ | 7,749 |  |  | $ | 210,620 |  |  | $ | 174,519 |  |  | $ | 11,798 |
Impaired Financing Receivables [Table Text Block] |
|  | For the year ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |  |  | 2015 |  |  | 2014 |  |  | 2013 |
|  | Average Recorded Investment |  |  | Interest Income Recognized |
|  | (In thousands) |
Commercial loans |  | $ | 23,960 |  |  | $ | 26,128 |  |  | $ | 27,123 |  |  | $ | 546 |  |  | $ | 878 |  |  | $ | 770 |
Real estate construction loans |  |  | 22,066 |  |  |  | 32,439 |  |  |  | 37,875 |  |  |  | 261 |  |  |  | 264 |  |  |  | 284 |
Commercial mortgage loans |  |  | 100,118 |  |  |  | 114,248 |  |  |  | 138,121 |  |  |  | 2,708 |  |  |  | 3,735 |  |  |  | 4,256 |
Residential mortgage and equity lines |  |  | 16,801 |  |  |  | 17,411 |  |  |  | 18,033 |  |  |  | 482 |  |  |  | 462 |  |  |  | 289 |
Subtotal |  | $ | 162,945 |  |  | $ | 190,226 |  |  | $ | 221,152 |  |  | $ | 3,997 |  |  | $ | 5,339 |  |  | $ | 5,599 |
Schedule of Financing Receivables, Non Accrual Status [Table Text Block] |
|  | 2015 |  |  | 2014 |  |  | 2013 |
|  | (In thousands) |
Non-accrual portfolio loans |  | $ | 52,130 |  |  | $ | 70,163 |  |  | $ | 83,183 |
Non-accrual loans held-for-sale |  |  | 5,944 |  |  |  | 973 |  |  |  | - |
Total non-accrual loans |  | $ | 58,074 |  |  | $ | 71,136 |  |  | $ | 83,183 |
Contractual interest due |  | $ | 5,732 |  |  | $ | 6,663 |  |  | $ | 5,851 |
Interest recognized |  |  | 119 |  |  |  | 217 |  |  |  | 22 |
Net interest foregone |  | $ | 5,613 |  |  | $ | 6,446 |  |  | $ | 5,829 |
Past Due Financing Receivables [Table Text Block] |
|  | As of December 31, 2015 |
|  | 30-59 Days Past Due |  |  | 60-89 Days Past Due |  |  | Greater than 90 Days Past Due |  |  | Non-accrual Loans |  |  | Total Past Due |  |  | Loans Not Past Due |  |  | Total |
|  | (In thousands) |
Type of Loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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 |
|  | As of December 31, 2014 |
|  | 30-59 Days Past Due |  |  | 60-89 Days Past Due |  |  | Greater than 90 Days Past Due |  |  | Non-accrual Loans |  |  | Total Past Due |  |  | Loans Not Past Due |  |  | Total |
|  | (In thousands) |
Type of Loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 11,595 |  |  | $ | 1,238 |  |  | $ | - |  |  | $ | 6,983 |  |  | $ | 19,816 |  |  | $ | 2,362,677 |  |  | $ | 2,382,493 |
Real estate construction loans |  |  | 1,416 |  |  |  | - |  |  |  | - |  |  |  | 19,963 |  |  |  | 21,379 |  |  |  | 277,275 |  |  |  | 298,654 |
Commercial mortgage loans |  |  | 17,654 |  |  |  | 3,909 |  |  |  | - |  |  |  | 35,606 |  |  |  | 57,169 |  |  |  | 4,429,274 |  |  |  | 4,486,443 |
Residential mortgage loans |  |  | 5,634 |  |  |  | 732 |  |  |  | - |  |  |  | 7,611 |  |  |  | 13,977 |  |  |  | 1,728,961 |  |  |  | 1,742,938 |
Installment and other loans |  |  | 60 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 60 |  |  |  | 3,492 |  |  |  | 3,552 |
Total loans |  | $ | 36,359 |  |  | $ | 5,879 |  |  | $ | - |  |  | $ | 70,163 |  |  | $ | 112,401 |  |  | $ | 8,801,679 |  |  | $ | 8,914,080 |
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 |  |  | 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-offs |
|  | (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 |  |  | $ | - |
|  | No. of Contracts |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |  |  | Specific Reserve |  |  | Charge-off |
|  | (Dollars in thousands) |
Commercial loans |  |  | 9 |  |  | $ | 12,026 |  |  | $ | 10,860 |  |  | $ | 550 |  |  | $ | 1,166 |
Commercial mortgage loans |  |  | 5 |  |  |  | 13,090 |  |  |  | 13,090 |  |  |  | 329 |  |  |  | - |
Residential mortgage and equity lines |  |  | 11 |  |  |  | 3,736 |  |  |  | 3,658 |  |  |  | 103 |  |  |  | 78 |
Total |  |  | 25 |  |  | $ | 28,852 |  |  | $ | 27,608 |  |  | $ | 982 |  |  | $ | 1,244 |
Troubled Debt Restructurings on Financing Receivables [Table Text Block] |
|  | December 31, 2015 |
Accruing TDRs |  | Payment Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Payment Deferral |  |  | Total |
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 |
|  | December 31, 2014 |
Accruing TDRs |  | Payment Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Forgiveness of Principal |  |  | Rate Reduction and Payment Deferral |  |  | Total |
Commercial loans |  | $ | 11,572 |  |  | $ | - |  |  | $ | - |  |  | $ | 4,934 |  |  | $ | 16,506 |
Real estate construction loans |  |  | 5,765 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 5,765 |
Commercial mortgage loans |  |  | 20,543 |  |  |  | 26,694 |  |  |  | - |  |  |  | 26,351 |  |  |  | 73,588 |
Residential mortgage loans |  |  | 3,316 |  |  |  | - |  |  |  | 410 |  |  |  | 4,771 |  |  |  | 8,497 |
Total accruing TDRs |  | $ | 41,196 |  |  | $ | 26,694 |  |  | $ | 410 |  |  | $ | 36,056 |  |  | $ | 104,356 |
Non Accrual Troubled Debt Restructurings [Table Text Block] |
|  | December 31, 2015 |
Non-accrual TDRs |  | Payment Deferral |  |  | Rate Reduction and Payment Deferral |  |  | Total |
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 |
|  | December 31, 2014 |
Non-accrual TDRs |  | Payment Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Payment Deferral |  |  | Total |
Commercial loans |  | $ | 1,423 |  |  | $ | 860 |  |  | $ | 1,269 |  |  | $ | 3,552 |
Real estate construction loans |  |  | - |  |  |  | - |  |  |  | 19,462 |  |  |  | 19,462 |
Commercial mortgage loans |  |  | 15,917 |  |  |  | - |  |  |  | 973 |  |  |  | 16,890 |
Residential mortgage loans |  |  | 1,026 |  |  |  | - |  |  |  | 688 |  |  |  | 1,714 |
Total non-accrual TDRs |  | $ | 18,366 |  |  | $ | 860 |  |  | $ | 22,392 |  |  | $ | 41,618 |
Activity Within the Troubled Debt Resturings [Table Text Block] |
Accruing TDRs |  | 2015 |  |  | 2014 |  |  | 2013 |
|  | (In thousands) |
Beginning balance |  | $ | 104,356 |  |  | $ | 117,597 |  |  | $ | 144,695 |
New restructurings |  |  | 17,752 |  |  |  | 23,740 |  |  |  | 21,382 |
Restructured loans restored to accrual status |  |  | 723 |  |  |  | 962 |  |  |  | 6,851 |
Charge-offs |  |  | (104 | ) |  |  | - |  |  |  | (78 | )
Payments |  |  | (30,858 | ) |  |  | (13,256 | ) |  |  | (52,362 | )
Restructured loans placed on non-accrual |  |  | (10,189 | ) |  |  | (24,687 | ) |  |  | (2,891 | )
Ending balance |  | $ | 81,680 |  |  | $ | 104,356 |  |  | $ | 117,597 |
Non-accrual TDRs |  | 2015 |  |  | 2014 |  |  | 2013 |
|  | (In thousands) |
Beginning balance |  | $ | 41,618 |  |  | $ | 38,769 |  |  | $ | 47,731 |
New restructurings |  |  | 2,006 |  |  |  | 1,331 |  |  |  | 6,226 |
Restructured loans placed on non-accrual |  |  | 10,189 |  |  |  | 24,687 |  |  |  | 2,891 |
Charge-offs |  |  | (3,246 | ) |  |  | (8,937 | ) |  |  | (2,124 | )
Payments |  |  | (9,921 | ) |  |  | (11,710 | ) |  |  | (4,295 | )
Foreclosures |  |  | - |  |  |  | (1,560 | ) |  |  | (4,809 | )
Restructured loans restored to accrual status |  |  | (723 | ) |  |  | (962 | ) |  |  | (6,851 | )
Ending balance |  | $ | 39,923 |  |  | $ | 41,618 |  |  | $ | 38,769 |
Financing Receivable Credit Quality Indicators [Table Text Block] |
|  | 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 |
|  | As of December 31, 2014 |
|  | Pass/Watch |  |  | Special Mention |  |  | Substandard |  |  | Doubtful |  |  | Total |
|  | (In Thousands) |
Commercial loans |  | $ | 2,260,474 |  |  | $ | 47,619 |  |  | $ | 72,561 |  |  | $ | 1,839 |  |  | $ | 2,382,493 |
Real estate construction loans |  |  | 272,927 |  |  |  | - |  |  |  | 25,227 |  |  |  | 500 |  |  |  | 298,654 |
Commercial mortgage loans |  |  | 4,213,453 |  |  |  | 105,970 |  |  |  | 167,020 |  |  |  | - |  |  |  | 4,486,443 |
Residential mortgage and equity lines |  |  | 1,733,248 |  |  |  | - |  |  |  | 9,690 |  |  |  | - |  |  |  | 1,742,938 |
Installment and other loans |  |  | 3,552 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 3,552 |
Total gross loans |  | $ | 8,483,654 |  |  | $ | 153,589 |  |  | $ | 274,498 |  |  | $ | 2,339 |  |  | $ | 8,914,080 |
Loans held for sale |  | $ | - |  |  | $ | - |  |  | $ | 973 |  |  | $ | - |  |  | $ | 973 |
Allowance for Credit Losses on Financing Receivables [Table Text Block] |
|  | Commercial Loans |  |  | Real Estate Construction Loans |  |  | Commercial Mortgage Loans |  |  | Residential Mortgage and Equity Lines |  |  | Installment and Other Loans |  |  | Total |
|  | (In thousands) |
2014 Beginning Balance |  | $ | 65,103 |  |  | $ | 11,999 |  |  | $ | 84,753 |  |  | $ | 12,005 |  |  | $ | 29 |  |  | $ | 173,889 |
Provision/(reversal) for possible loan losses |  |  | (22,244 | ) |  |  | 19,853 |  |  |  | (8,197 | ) |  |  | (558 | ) |  |  | (26 | ) |  |  | (11,172 | )
Charge-offs |  |  | (7,875 | ) |  |  | (6,747 | ) |  |  | (7,458 | ) |  |  | (155 | ) |  |  | - |  |  |  | (22,235 | )
Recoveries |  |  | 12,517 |  |  |  | 2,547 |  |  |  | 5,575 |  |  |  | 286 |  |  |  | 13 |  |  |  | 20,938 |
Net Recoveries/(Charge-offs |  |  | 4,642 |  |  |  | (4,200 | ) |  |  | (1,883 | ) |  |  | 131 |  |  |  | 13 |  |  |  | (1,297 | )
2014 Ending Balance |  | $ | 47,501 |  |  | $ | 27,652 |  |  | $ | 74,673 |  |  | $ | 11,578 |  |  | $ | 16 |  |  | $ | 161,420 |
Reserve to impaired loans |  | $ | 1,263 |  |  | $ | 1,077 |  |  | $ | 8,993 |  |  | $ | 465 |  |  | $ | - |  |  | $ | 11,798 |
Reserve to non-impaired loans |  | $ | 46,238 |  |  | $ | 26,575 |  |  | $ | 65,680 |  |  | $ | 11,113 |  |  | $ | 16 |  |  | $ | 149,622 |
Reserve for off-balance sheet credit commitments |  | $ | 923 |  |  | $ | 728 |  |  | $ | 259 |  |  | $ | 39 |  |  | $ | - |  |  | $ | 1,949 |
2015 Beginning Balance |  | $ | 47,501 |  |  | $ | 27,652 |  |  | $ | 74,673 |  |  | $ | 11,578 |  |  | $ | 16 |  |  | $ | 161,420 |
Provision/(reversal) for possible 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 to impaired loans |  | $ | 530 |  |  | $ | - |  |  | $ | 6,792 |  |  | $ | 427 |  |  | $ | - |  |  | $ | 7,749 |
Reserve to 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 |
Schedule of Credit Losses for Financing Receivables, Current [Table Text Block] |
|  | December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
|  | (In thousands) |
Allowance for Loan Losses |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of year |  | $ | 161,420 |  |  | $ | 173,889 |  |  | $ | 183,322 |
Reversal for credit losses |  |  | (11,400 | ) |  |  | (10,800 | ) |  |  | (3,000 | )
Transfers to reserve for off-balance sheet credit commitments |  |  | - |  |  |  | (372 | ) |  |  | - |
Loans charged off |  |  | (20,427 | ) |  |  | (22,235 | ) |  |  | (20,442 | )
Recoveries of charged off loans |  |  | 9,370 |  |  |  | 20,938 |  |  |  | 14,009 |
Balance at end of year |  | $ | 138,963 |  |  | $ | 161,420 |  |  | $ | 173,889 |
Reserve for Off-balance Sheet Credit Commitments |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of year |  | $ | 1,949 |  |  | $ | 1,363 |  |  | $ | 1,363 |
(Reversal)/provision for credit losses and transfers |  |  | (455 | ) |  |  | 586 |  |  |  | - |
Balance at end of year |  | $ | 1,494 |  |  | $ | 1,949 |  |  | $ | 1,363 |
Impairment Method [Member] |
Note 5 - Loans (Tables) [Line Items] |
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, 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 |
December 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans individually evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 1,263 |  |  | $ | 1,077 |  |  | $ | 8,993 |  |  | $ | 465 |  |  | $ | - |  |  | $ | 11,798 |
Balance |  | $ | 23,489 |  |  | $ | 25,728 |  |  | $ | 109,194 |  |  | $ | 16,108 |  |  | $ | - |  |  | $ | 174,519 |
Loans collectively evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 46,238 |  |  | $ | 26,575 |  |  | $ | 65,680 |  |  | $ | 11,113 |  |  | $ | 16 |  |  | $ | 149,622 |
Balance |  | $ | 2,359,004 |  |  | $ | 272,926 |  |  | $ | 4,377,249 |  |  | $ | 1,726,830 |  |  | $ | 3,552 |  |  | $ | 8,739,561 |
Total allowance |  | $ | 47,501 |  |  | $ | 27,652 |  |  | $ | 74,673 |  |  | $ | 11,578 |  |  | $ | 16 |  |  | $ | 161,420 |
Total balance |  | $ | 2,382,493 |  |  | $ | 298,654 |  |  | $ | 4,486,443 |  |  | $ | 1,742,938 |  |  | $ | 3,552 |  |  | $ | 8,914,080 |

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