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Note 5 - Loans (Tables) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012
Receivables [Abstract] |  |
Schedule Of Components Of Loans In Consolidated Balance Sheets [Table Text Block] |
|  | As of December 31, |
|  | 2013 |  |  | 2012 |
|  | (In thousands) |
Type of Loans: |  |  |  |  |  |  |  |
Commercial loans |  | $ | 2,298,724 |  |  | $ | 2,127,107 |
Real estate construction loans |  |  | 221,701 |  |  |  | 180,950 |
Commercial mortgage loans |  |  | 4,023,051 |  |  |  | 3,768,452 |
Residential mortgage loans |  |  | 1,355,255 |  |  |  | 1,146,230 |
Equity lines |  |  | 171,277 |  |  |  | 193,852 |
Installment and other loans |  |  | 14,555 |  |  |  | 12,556 |
Gross loans |  |  | 8,084,563 |  |  |  | 7,429,147 |
Less: |  |  |  |  |  |  |  |
Allowance for loan losses |  |  | (173,889 | ) |  |  | (183,322 | )
Unamortized deferred loan fees |  |  | (13,487 | ) |  |  | (10,238 | )
Total loans and leases, net |  | $ | 7,897,187 |  |  | $ | 7,235,587 |
Schedule of Related Party Transactions [Table Text Block] |
|  | December 31, |
|  | 2013 |  |  | 2012 |
|  | (In thousands) |
Balance at beginning of year |  | $ | 172,584 |  |  | $ | 160,069 |
Additional loans made |  |  | 64,063 |  |  |  | 92,249 |
Payment received |  |  | (109,662 | ) |  |  | (79,734 | )
Balance at end of year |  | $ | 126,985 |  |  | $ | 172,584 |
Schedule Of Impaired Loans And Related Allowance And Charge-Off [Table Text Block] |
|  | Impaired Loans |
|  | As of December 31, 2013 |  |  | As of December 31, 2012 |
|  | Unpaid Principal Balance |  |  | Recorded Investment |  |  | Allowance |  |  | Unpaid Principal Balance |  |  | Recorded Investment |  |  | Allowance |
|  | (Dollars in thousands) |
With no allocated allowance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 20,992 |  |  | $ | 18,905 |  |  | $ | - |  |  | $ | 29,359 |  |  | $ | 18,963 |  |  | $ | - |
Real estate construction loans |  |  | 25,401 |  |  |  | 15,097 |  |  |  | - |  |  |  | 9,304 |  |  |  | 7,277 |  |  |  | - |
Commercial mortgage loans |  |  | 105,593 |  |  |  | 78,930 |  |  |  | - |  |  |  | 189,871 |  |  |  | 152,957 |  |  |  | - |
Residential mortgage and equity lines |  |  | 4,892 |  |  |  | 4,892 |  |  |  | - |  |  |  | 4,303 |  |  |  | 4,229 |  |  |  | - |
Subtotal |  | $ | 156,878 |  |  | $ | 117,824 |  |  | $ | - |  |  | $ | 232,837 |  |  | $ | 183,426 |  |  | $ | - |
With allocated allowance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial loans |  | $ | 22,737 |  |  | $ | 13,063 |  |  | $ | 2,519 |  |  | $ | 7,804 |  |  | $ | 4,959 |  |  | $ | 1,467 |
Real estate construction loans |  |  | 28,475 |  |  |  | 19,323 |  |  |  | 3,460 |  |  |  | 54,718 |  |  |  | 34,856 |  |  |  | 8,158 |
Commercial mortgage loans |  |  | 39,223 |  |  |  | 35,613 |  |  |  | 6,584 |  |  |  | 14,163 |  |  |  | 12,928 |  |  |  | 1,336 |
Residential mortgage and equity lines |  |  | 16,535 |  |  |  | 14,957 |  |  |  | 721 |  |  |  | 14,264 |  |  |  | 12,428 |  |  |  | 1,222 |
Subtotal |  | $ | 106,970 |  |  | $ | 82,956 |  |  | $ | 13,284 |  |  | $ | 90,949 |  |  | $ | 65,171 |  |  | $ | 12,183 |
Total impaired loans |  | $ | 263,848 |  |  | $ | 200,780 |  |  | $ | 13,284 |  |  | $ | 323,786 |  |  | $ | 248,597 |  |  | $ | 12,183 |
Impaired Financing Receivables [Table Text Block] |
|  | For the year ended December 31, |
|  | 2013 |  |  | 2012 |  |  | 2011 |  |  | 2013 |  |  | 2012 |  |  | 2011 |
|  | Average Recorded Investment |  |  | Interest Income Recognized |
|  | (In thousands) |
Commercial loans |  | $ | 27,123 |  |  | $ | 31,798 |  |  | $ | 48,349 |  |  | $ | 770 |  |  | $ | 580 |  |  | $ | 1,053 |
Real estate construction loans |  |  | 37,875 |  |  |  | 49,094 |  |  |  | 82,529 |  |  |  | 284 |  |  |  | 265 |  |  |  | 940 |
Commercial mortgage loans |  |  | 138,121 |  |  |  | 178,822 |  |  |  | 212,555 |  |  |  | 4,256 |  |  |  | 8,221 |  |  |  | 3,101 |
Residential mortgage and equity lines |  |  | 18,033 |  |  |  | 18,062 |  |  |  | 17,920 |  |  |  | 289 |  |  |  | 239 |  |  |  | 236 |
Subtotal |  | $ | 221,152 |  |  | $ | 277,776 |  |  | $ | 361,353 |  |  | $ | 5,599 |  |  | $ | 9,305 |  |  | $ | 5,330 |
Schedule of Financing Receivables, Non Accrual Status [Table Text Block] |
|  | 2013 |  |  | 2012 |  |  | 2011 |
|  | (In thousands) |
Non-accrual portfolio loans |  | $ | 83,183 |  |  | $ | 103,902 |  |  | $ | 201,197 |
Non-accrual loans held-for-sale |  |  | - |  |  |  | - |  |  |  | 760 |
Total non-accrual loans |  | $ | 83,183 |  |  | $ | 103,902 |  |  | $ | 201,957 |
Contractual interest due |  | $ | 5,851 |  |  | $ | 6,621 |  |  | $ | 13,049 |
Interest recognized |  |  | 22 |  |  |  | 1,006 |  |  |  | 71 |
Net interest foregone |  | $ | 5,829 |  |  | $ | 5,615 |  |  | $ | 12,978 |
Past Due Financing Receivables [Table Text Block] |
|  | As of December 31, 2013 |
|  | 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 |  | $ | 7,170 |  |  | $ | 16,562 |  |  | $ | - |  |  | $ | 21,232 |  |  | $ | 44,964 |  |  | $ | 2,253,760 |  |  | $ | 2,298,724 |
Real estate construction loans |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 28,586 |  |  |  | 28,586 |  |  |  | 193,115 |  |  |  | 221,701 |
Commercial mortgage loans |  |  | 20,043 |  |  |  | 7,862 |  |  |  | 982 |  |  |  | 19,621 |  |  |  | 48,508 |  |  |  | 3,974,543 |  |  |  | 4,023,051 |
Residential mortgage loans |  |  | 3,508 |  |  |  | 832 |  |  |  | - |  |  |  | 13,744 |  |  |  | 18,084 |  |  |  | 1,508,448 |  |  |  | 1,526,532 |
Installment and other loans |  |  | 100 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 100 |  |  |  | 14,455 |  |  |  | 14,555 |
Total loans |  | $ | 30,821 |  |  | $ | 25,256 |  |  | $ | 982 |  |  | $ | 83,183 |  |  | $ | 140,242 |  |  | $ | 7,944,321 |  |  | $ | 8,084,563 |
|  | As of December 31, 2012 |
|  | 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 |  | $ | 16,832 |  |  | $ | 1,610 |  |  | $ | 630 |  |  | $ | 19,958 |  |  | $ | 39,030 |  |  | $ | 2,088,077 |  |  | $ | 2,127,107 |
Real estate construction loans |  |  | - |  |  |  | 1,471 |  |  |  | - |  |  |  | 36,299 |  |  |  | 37,770 |  |  |  | 143,180 |  |  |  | 180,950 |
Commercial mortgage loans |  |  | 21,570 |  |  |  | 3,627 |  |  |  | - |  |  |  | 35,704 |  |  |  | 60,901 |  |  |  | 3,707,551 |  |  |  | 3,768,452 |
Residential mortgage loans |  |  | 5,324 |  |  |  | 1,972 |  |  |  | - |  |  |  | 11,941 |  |  |  | 19,237 |  |  |  | 1,320,845 |  |  |  | 1,340,082 |
Installment and other loans |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 12,556 |  |  |  | 12,556 |
Total loans |  | $ | 43,726 |  |  | $ | 8,680 |  |  | $ | 630 |  |  | $ | 103,902 |  |  | $ | 156,938 |  |  | $ | 7,272,209 |  |  | $ | 7,429,147 |
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 |  |  | 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 |
|  | No. of Contracts |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |  |  | Specific Reserve |  |  | Charge-offs |
|  | (Dollars in thousands) |
Commercial loans |  |  | 9 |  |  | $ | 3,646 |  |  | $ | 3,646 |  |  | $ | 1,213 |  |  | $ | - |
Commercial mortgage loans |  |  | 20 |  |  |  | 62,118 |  |  |  | 58,393 |  |  |  | 27 |  |  |  | 3,725 |
Residential mortgage and equity lines |  |  | 14 |  |  |  | 4,305 |  |  |  | 4,223 |  |  |  | 162 |  |  |  | 82 |
Total |  |  | 43 |  |  | $ | 70,069 |  |  | $ | 66,262 |  |  | $ | 1,402 |  |  | $ | 3,807 |
|  | No. of Contracts |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |  |  | Specific Reserve |  |  | Charge-off |
|  | (Dollars in thousands) |
Commercial loans |  |  | 7 |  |  | $ | 15,025 |  |  | $ | 15,025 |  |  | $ | 104 |  |  | $ | - |
Real estate construction loans |  |  | 3 |  |  |  | 33,669 |  |  |  | 21,522 |  |  |  | - |  |  |  | 12,147 |
Commercial mortgage loans |  |  | 6 |  |  |  | 17,343 |  |  |  | 14,294 |  |  |  | 1 |  |  |  | 3,049 |
Residential mortgage and equity lines |  |  | 3 |  |  |  | 1,574 |  |  |  | 1,574 |  |  |  | 114 |  |  |  | - |
Total |  |  | 19 |  |  | $ | 67,611 |  |  | $ | 52,415 |  |  | $ | 219 |  |  | $ | 15,196 |
Troubled Debt Restructurings on Financing Receivables [Table Text Block] |  |
|  | As of December 31, 2013 |
Accruing TDRs |  | Principal Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Forgiveness of Principal |  |  | Rate Reduction and Payment Deferral |  |  | Total |
|  | (In thousands) |
Commercial loans |  | $ | 9,112 |  |  | $ | 2,916 |  |  | $ | - |  |  | $ | 2,708 |  |  | $ | 14,736 |
Real estate construction loans |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 5,834 |  |  |  | 5,834 |
Commercial mortgage loans |  |  | 11,333 |  |  |  | 9,389 |  |  |  | - |  |  |  | 70,200 |  |  |  | 90,922 |
Residential mortgage loans |  |  | 1,564 |  |  |  | 1,024 |  |  |  | - |  |  |  | 3,517 |  |  |  | 6,105 |
Total accruing TDRs |  | $ | 22,009 |  |  | $ | 13,329 |  |  | $ | - |  |  | $ | 82,259 |  |  | $ | 117,597 |
|  | As of December 31, 2012 |
Accruing TDRs |  | Principal Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Forgiveness of Principal |  |  | Rate Reduction and Payment Deferral |  |  | Total |
|  | (In thousands) |
Commercial loans |  | $ | 531 |  |  | $ | 3,020 |  |  | $ | - |  |  | $ | 413 |  |  | $ | 3,964 |
Real estate construction loans |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 5,834 |  |  |  | 5,834 |
Commercial mortgage loans |  |  | 27,003 |  |  |  | 16,656 |  |  |  | 739 |  |  |  | 85,783 |  |  |  | 130,181 |
Residential mortgage loans |  |  | 1,461 |  |  |  | 1,024 |  |  |  | - |  |  |  | 2,231 |  |  |  | 4,716 |
Total accruing TDRs |  | $ | 28,995 |  |  | $ | 20,700 |  |  | $ | 739 |  |  | $ | 94,261 |  |  | $ | 144,695 |
|  | As of December 31, 2011 |
Accruing TDRs |  | Principal Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Forgiveness of Principal |  |  | Rate Reduction and Payment Deferral |  |  | Total |
Commercial loans |  | $ | 12,933 |  |  | $ | 1,756 |  |  | $ | - |  |  | $ | 431 |  |  | $ | 15,120 |
Real estate construction loans |  |  | 16,820 |  |  |  | 9,659 |  |  |  | - |  |  |  | 5,776 |  |  |  | 32,255 |
Commercial mortgage loans |  |  | 471 |  |  |  | 37,796 |  |  |  | 2,071 |  |  |  | 28,935 |  |  |  | 69,273 |
Residential mortgage loans |  |  | 1,294 |  |  |  | 587 |  |  |  | - |  |  |  | 1,487 |  |  |  | 3,368 |
Total accruing TDRs |  | $ | 31,518 |  |  | $ | 49,798 |  |  | $ | 2,071 |  |  | $ | 36,629 |  |  | $ | 120,016 |
Non Accrual Troubled Debt Restructurings [Table Text Block] |  |
|  | As of December 31, 2013 |
Non-accrual TDRs |  | Interest Deferral |  |  | Principal Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Forgiveness of Principal |  |  | Rate Reduction and Payment Deferral |  |  | Total |
|  | (In thousands) |
Commercial loans |  | $ | - |  |  | $ | 2,866 |  |  | $ | - |  |  | $ | 1,352 |  |  | $ | - |  |  | $ | 4,218 |
Real estate construction loans |  |  | - |  |  |  | 16,009 |  |  |  | - |  |  |  | - |  |  |  | 9,263 |  |  |  | 25,272 |
Commercial mortgage loans |  |  | 1,443 |  |  |  | 2,168 |  |  |  | - |  |  |  | - |  |  |  | 1,843 |  |  |  | 5,454 |
Residential mortgage loans |  |  | 241 |  |  |  | 2,206 |  |  |  | - |  |  |  | - |  |  |  | 1,378 |  |  |  | 3,825 |
Total non-accrual TDRs |  | $ | 1,684 |  |  | $ | 23,249 |  |  | $ | - |  |  | $ | 1,352 |  |  | $ | 12,484 |  |  | $ | 38,769 |
|  | As of December 31, 2012 |
Non-accrual TDRs |  | Interest Deferral |  |  | Principal Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Forgiveness of Principal |  |  | Rate Reduction and Payment Deferral |  |  | Total |
|  | (In thousands) |
Commercial loans |  | $ | - |  |  | $ | 912 |  |  | $ | - |  |  | $ | 1,518 |  |  | $ | - |  |  | $ | 2,430 |
Real estate construction loans |  |  | - |  |  |  | 16,767 |  |  |  | 9,579 |  |  |  | - |  |  |  | - |  |  |  | 26,346 |
Commercial mortgage loans |  |  | 1,685 |  |  |  | 2,817 |  |  |  | 5,746 |  |  |  | - |  |  |  | 5,076 |  |  |  | 15,324 |
Residential mortgage loans |  |  | 275 |  |  |  | 2,010 |  |  |  | 586 |  |  |  | - |  |  |  | 760 |  |  |  | 3,631 |
Total non-accrual TDRs |  | $ | 1,960 |  |  | $ | 22,506 |  |  | $ | 15,911 |  |  | $ | 1,518 |  |  | $ | 5,836 |  |  | $ | 47,731 |
|  | As of December 31, 2011 |
Non-accrual TDRs |  | Interest Deferral |  |  | Principal Deferral |  |  | Rate Reduction |  |  | Rate Reduction and Forgiveness of Principal |  |  | Rate Reduction and Payment Deferral |  |  | Total |
Commercial loans |  | $ | - |  |  | $ | 616 |  |  | $ | 1,859 |  |  | $ | 1,506 |  |  | $ | - |  |  | $ | 3,981 |
Real estate construction loans |  |  | - |  |  |  | 13,579 |  |  |  | 12,376 |  |  |  | - |  |  |  | - |  |  |  | 25,955 |
Commercial mortgage loans |  |  | - |  |  |  | 9,727 |  |  |  | - |  |  |  | - |  |  |  | 5,076 |  |  |  | 17,436 |
Residential mortgage loans |  |  | - |  |  |  | 2,427 |  |  |  | 449 |  |  |  | - |  |  |  | 311 |  |  |  | 3,498 |
Total non-accrual TDRs |  | $ | - |  |  | $ | 26,349 |  |  | $ | 14,684 |  |  | $ | 1,506 |  |  | $ | 5,387 |  |  | $ | 50,870 |
Activity Within The Troubled Debt Restructurings [Table Text Block] |
Accruing TDRs |  | 2013 |  |  | 2012 |  |  | 2011 |
|  | (In thousands) |
Beginning balance |  | $ | 144,695 |  |  | $ | 120,016 |  |  | $ | 136,800 |
New restructurings |  |  | 21,382 |  |  |  | 53,958 |  |  |  | 60,863 |
Restructured loans restored to accrual status |  |  | 6,851 |  |  |  | 8,356 |  |  |  | 709 |
Charge-offs |  |  | (78 | ) |  |  | (251 | ) |  |  | (2,341 | )
Payments |  |  | (52,362 | ) |  |  | (5,159 | ) |  |  | (46,313 | )
Restructured loans placed on non-accrual |  |  | (2,891 | ) |  |  | (32,225 | ) |  |  | (28,969 | )
Expiration of loan concession |  |  | - |  |  |  | - |  |  |  | (733 | )
Ending balance |  | $ | 117,597 |  |  | $ | 144,695 |  |  | $ | 120,016 |
Non-accrual TDRs |  | 2013 |  |  | 2012 |  |  | 2011 |
|  | (In thousands) |
Beginning balance |  | $ | 47,731 |  |  | $ | 50,870 |  |  | $ | 28,146 |
New restructurings |  |  | 6,226 |  |  |  | 12,304 |  |  |  | 13,269 |
Restructured loans placed on non-accrual |  |  | 2,891 |  |  |  | 32,225 |  |  |  | 28,969 |
Charge-offs |  |  | (2,124 | ) |  |  | (4,182 | ) |  |  | (7,303 | )
Payments |  |  | (4,295 | ) |  |  | (33,931 | ) |  |  | (3,355 | )
Foreclosures |  |  | (4,809 | ) |  |  | (1,199 | ) |  |  | (8,147 | )
Restructured loans restored to accrual status |  |  | (6,851 | ) |  |  | (8,356 | ) |  |  | (709 | )
Ending balance |  | $ | 38,769 |  |  | $ | 47,731 |  |  | $ | 50,870 |
Financing Receivable Credit Quality Indicators [Table Text Block] |
|  | As of December 31, 2013 |
|  | Pass/Watch |  |  | Special Mention |  |  | Substandard |  |  | Doubtful |  |  | Total |
|  | (in thousands) |
Commercial loans |  | $ | 2,108,191 |  |  | $ | 84,786 |  |  | $ | 102,088 |  |  | $ | 3,659 |  |  | $ | 2,298,724 |
Real estate construction loans |  |  | 184,449 |  |  |  | - |  |  |  | 33,939 |  |  |  | 3,313 |  |  |  | 221,701 |
Commercial mortgage loans |  |  | 3,686,788 |  |  |  | 127,436 |  |  |  | 208,827 |  |  |  | - |  |  |  | 4,023,051 |
Residential mortgage and equity lines |  |  | 1,510,647 |  |  |  | - |  |  |  | 15,885 |  |  |  | - |  |  |  | 1,526,532 |
Installment and other loans |  |  | 14,555 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 14,555 |
Total gross loans |  | $ | 7,504,630 |  |  | $ | 212,222 |  |  | $ | 360,739 |  |  | $ | 6,972 |  |  | $ | 8,084,563 |
|  | As of December 31, 2012 |
|  | Pass/Watch |  |  | Special Mention |  |  | Substandard |  |  | Doubtful |  |  | Total |
|  | (in thousands) |
Commercial loans |  | $ | 1,944,989 |  |  | $ | 76,776 |  |  | $ | 94,077 |  |  | $ | 11,265 |  |  | $ | 2,127,107 |
Real estate construction loans |  |  | 109,269 |  |  |  | 18,000 |  |  |  | 45,171 |  |  |  | 8,510 |  |  |  | 180,950 |
Commercial mortgage loans |  |  | 3,344,783 |  |  |  | 162,455 |  |  |  | 261,214 |  |  |  | - |  |  |  | 3,768,452 |
Residential mortgage and equity lines |  |  | 1,322,768 |  |  |  | 816 |  |  |  | 16,084 |  |  |  | 414 |  |  |  | 1,340,082 |
Installment and other loans |  |  | 12,556 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 12,556 |
Total gross loans |  | $ | 6,734,365 |  |  | $ | 258,047 |  |  | $ | 416,546 |  |  | $ | 20,189 |  |  | $ | 7,429,147 |
Allowance For Credit Losses On Financing Receivables Based On Impairment Method [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, 2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans individually evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 2,519 |  |  | $ | 3,460 |  |  | $ | 6,584 |  |  | $ | 721 |  |  | $ | - |  |  | $ | 13,284 |
Balance |  | $ | 31,968 |  |  | $ | 34,420 |  |  | $ | 114,544 |  |  | $ | 19,848 |  |  | $ | - |  |  | $ | 200,780 |
Loans collectively evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 62,584 |  |  | $ | 8,539 |  |  | $ | 78,169 |  |  | $ | 11,284 |  |  | $ | 29 |  |  | $ | 160,605 |
Balance |  | $ | 2,266,756 |  |  | $ | 187,281 |  |  | $ | 3,908,507 |  |  | $ | 1,506,684 |  |  | $ | 14,555 |  |  | $ | 7,883,783 |
Total allowance |  | $ | 65,103 |  |  | $ | 11,999 |  |  | $ | 84,753 |  |  | $ | 12,005 |  |  | $ | 29 |  |  | $ | 173,889 |
Total balance |  | $ | 2,298,724 |  |  | $ | 221,701 |  |  | $ | 4,023,051 |  |  | $ | 1,526,532 |  |  | $ | 14,555 |  |  | $ | 8,084,563 |
December 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans individually evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 1,467 |  |  | $ | 8,158 |  |  | $ | 1,336 |  |  | $ | 1,222 |  |  | $ | - |  |  | $ | 12,183 |
Balance |  | $ | 23,922 |  |  | $ | 42,133 |  |  | $ | 165,885 |  |  | $ | 16,657 |  |  | $ | - |  |  | $ | 248,597 |
Loans collectively evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 64,634 |  |  | $ | 14,859 |  |  | $ | 81,137 |  |  | $ | 10,481 |  |  | $ | 28 |  |  | $ | 171,139 |
Balance |  | $ | 2,103,185 |  |  | $ | 138,817 |  |  | $ | 3,602,567 |  |  | $ | 1,323,425 |  |  | $ | 12,556 |  |  | $ | 7,180,550 |
Total allowance |  | $ | 66,101 |  |  | $ | 23,017 |  |  | $ | 82,473 |  |  | $ | 11,703 |  |  | $ | 28 |  |  | $ | 183,322 |
Total balance |  | $ | 2,127,107 |  |  | $ | 180,950 |  |  | $ | 3,768,452 |  |  | $ | 1,340,082 |  |  | $ | 12,556 |  |  | $ | 7,429,147 |
December 31, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans individually evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 3,336 |  |  | $ | - |  |  | $ | 2,969 |  |  | $ | 1,247 |  |  | $ | - |  |  | $ | 7,552 |
Balance |  | $ | 45,781 |  |  | $ | 78,766 |  |  | $ | 177,058 |  |  | $ | 20,368 |  |  | $ | - |  |  | $ | 321,973 |
Loans collectively evaluated for impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance |  | $ | 62,322 |  |  | $ | 21,749 |  |  | $ | 105,052 |  |  | $ | 9,548 |  |  | $ | 57 |  |  | $ | 198,728 |
Balance |  | $ | 1,822,494 |  |  | $ | 158,606 |  |  | $ | 3,571,839 |  |  | $ | 1,166,601 |  |  | $ | 17,699 |  |  | $ | 6,737,239 |
Total allowance |  | $ | 65,658 |  |  | $ | 21,749 |  |  | $ | 108,021 |  |  | $ | 10,795 |  |  | $ | 57 |  |  | $ | 206,280 |
Total balance |  | $ | 1,868,275 |  |  | $ | 237,372 |  |  | $ | 3,748,897 |  |  | $ | 1,186,969 |  |  | $ | 17,699 |  |  | $ | 7,059,212 |
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) |
2011 Beginning Balance |  | $ | 63,918 |  |  | $ | 43,262 |  |  | $ | 128,348 |  |  | $ | 9,668 |  |  | $ | 35 |  |  | $ | 245,231 |
Provision for possible loan losses |  |  | 11,711 |  |  |  | 11,514 |  |  |  | 1,454 |  |  |  | 2,392 |  |  |  | 197 |  |  |  | 27,268 |
Charge-offs |  |  | (11,745 | ) |  |  | (37,500 | ) |  |  | (26,750 | ) |  |  | (1,456 | ) |  |  | (175 | ) |  |  | (77,626 | )
Recoveries |  |  | 1,774 |  |  |  | 4,473 |  |  |  | 4,969 |  |  |  | 191 |  |  |  | - |  |  |  | 11,407 |
Net Charge-offs |  |  | (9,971 | ) |  |  | (33,027 | ) |  |  | (21,781 | ) |  |  | (1,265 | ) |  |  | (175 | ) |  |  | (66,219 | )
2011 Ending Balance |  | $ | 65,658 |  |  | $ | 21,749 |  |  | $ | 108,021 |  |  | $ | 10,795 |  |  | $ | 57 |  |  | $ | 206,280 |
Reserve to impaired loans |  | $ | 3,336 |  |  | $ | - |  |  | $ | 2,969 |  |  | $ | 1,247 |  |  | $ | - |  |  | $ | 7,552 |
Reserve to non-impaired loans |  | $ | 62,322 |  |  | $ | 21,749 |  |  | $ | 105,052 |  |  | $ | 9,548 |  |  | $ | 57 |  |  | $ | 198,728 |
Reserve for off-balance sheet credit commitments |  | $ | 816 |  |  | $ | 1,103 |  |  | $ | 113 |  |  | $ | 34 |  |  | $ | 3 |  |  | $ | 2,069 |
2012 Beginning Balance |  | $ | 65,658 |  |  | $ | 21,749 |  |  | $ | 108,021 |  |  | $ | 10,795 |  |  | $ | 57 |  |  | $ | 206,280 |
Provision/(reversal) for possible loan losses |  |  | 16,201 |  |  |  | (3,720 | ) |  |  | (23,128 | ) |  |  | 2,360 |  |  |  | (7 | ) |  |  | (8,294 | )
Charge-offs |  |  | (17,707 | ) |  |  | (1,165 | ) |  |  | (11,762 | ) |  |  | (2,132 | ) |  |  | (25 | ) |  |  | (32,791 | )
Recoveries |  |  | 1,949 |  |  |  | 6,153 |  |  |  | 9,342 |  |  |  | 680 |  |  |  | 3 |  |  |  | 18,127 |
Net Charge-offs |  |  | (15,758 | ) |  |  | 4,988 |  |  |  | (2,420 | ) |  |  | (1,452 | ) |  |  | (22 | ) |  |  | (14,664 | )
2012 Ending Balance |  | $ | 66,101 |  |  | $ | 23,017 |  |  | $ | 82,473 |  |  | $ | 11,703 |  |  | $ | 28 |  |  | $ | 183,322 |
Reserve to impaired loans |  | $ | 1,467 |  |  | $ | 8,158 |  |  | $ | 1,336 |  |  | $ | 1,222 |  |  | $ | - |  |  | $ | 12,183 |
Reserve to non-impaired loans |  | $ | 64,634 |  |  | $ | 14,859 |  |  | $ | 81,137 |  |  | $ | 10,481 |  |  | $ | 28 |  |  | $ | 171,139 |
Reserve for off-balance sheet credit commitments |  | $ | 837 |  |  | $ | 390 |  |  | $ | 98 |  |  | $ | 34 |  |  | $ | 3 |  |  | $ | 1,362 |
2013 Beginning Balance |  | $ | 66,101 |  |  | $ | 23,017 |  |  | $ | 82,473 |  |  | $ | 11,703 |  |  | $ | 28 |  |  | $ | 183,322 |
Provision/(reversal) for possible loan losses |  |  | 11,888 |  |  |  | (13,302 | ) |  |  | (2,500 | ) |  |  | 924 |  |  |  | (10 | ) |  |  | (3,000 | )
Charge-offs |  |  | (15,625 | ) |  |  | - |  |  |  | (3,945 | ) |  |  | (872 | ) |  |  | - |  |  |  | (20,442 | )
Recoveries |  |  | 2,739 |  |  |  | 2,284 |  |  |  | 8,725 |  |  |  | 250 |  |  |  | 11 |  |  |  | 14,009 |
Net Charge-offs |  |  | (12,886 | ) |  |  | 2,284 |  |  |  | 4,780 |  |  |  | (622 | ) |  |  | 11 |  |  |  | (6,433 | )
2013 Ending Balance |  | $ | 65,103 |  |  | $ | 11,999 |  |  | $ | 84,753 |  |  | $ | 12,005 |  |  | $ | 29 |  |  | $ | 173,889 |
Reserve to impaired loans |  | $ | 2,519 |  |  | $ | 3,460 |  |  | $ | 6,584 |  |  | $ | 721 |  |  | $ | - |  |  | $ | 13,284 |
Reserve to non-impaired loans |  | $ | 62,584 |  |  | $ | 8,539 |  |  | $ | 78,169 |  |  | $ | 11,284 |  |  | $ | 29 |  |  | $ | 160,605 |
Reserve for off-balance sheet credit commitments |  | $ | 909 |  |  | $ | 304 |  |  | $ | 111 |  |  | $ | 34 |  |  | $ | 1 |  |  | $ | 1,359 |
Schedule of Credit Losses for Financing Receivables, Current [Table Text Block] |
|  | December 31, |
|  | 2013 |  |  | 2012 |  |  | 2011 |
|  | (In thousands) |
Allowance for Loan Losses |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of year |  | $ | 183,322 |  |  | $ | 206,280 |  |  | $ | 245,231 |
(Reversal)/provision for credit losses |  |  | (3,000 | ) |  |  | (9,000 | ) |  |  | 27,000 |
Transfers from reserve for off-balance sheet credit commitments |  |  | - |  |  |  | 706 |  |  |  | 268 |
Loans charged off |  |  | (20,442 | ) |  |  | (32,791 | ) |  |  | (77,626 | )
Recoveries of charged off loans |  |  | 14,009 |  |  |  | 18,127 |  |  |  | 11,407 |
Balance at end of year |  | $ | 173,889 |  |  | $ | 183,322 |  |  | $ | 206,280 |
Reserve for Off-balance Sheet Credit Commitments |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of year |  | $ | 1,363 |  |  | $ | 2,069 |  |  | $ | 2,337 |
Provision for credit losses/transfers |  |  | - |  |  |  | (706 | ) |  |  | (268 | )
Balance at end of year |  | $ | 1,363 |  |  | $ | 1,363 |  |  | $ | 2,069 |

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