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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2011
Income Taxes [Abstract] |
Components Of The Corporation's Deferred Tax Assets And Liabilities |
December 31 (In thousands) |  | 2011 |  |  | 2010 |
Deferred tax assets: |  |  |
Allowance for loan losses |  | $ | 23,956 |  |  | $ | 52,418 |
Accumulated other comprehensive loss – Interest rate swap |  |  | 296 |  |  |  | 572 |
Accumulated other comprehensive loss – pension plan |  |  | 11,283 |  |  |  | 8,576 |
Intangible assets |  |  | 1,523 |  |  |  | 2,156 |
Deferred compensation |  |  | 3,733 |  |  |  | 4,123 |
OREO devaluations |  |  | 6,364 |  |  |  | 7,171 |
State net operating loss carryforwards |  |  | - |  |  |  | 2,812 |
Other |  |  | 5,220 |  |  |  | 4,988 |
Loans held for sale fair value adjustment |  |  | 4,585 |  |  |  | - |
Tax credit carryforwards |  |  | 1,269 |  |  |  | - |
Valuation allowance |  |  | - |  |  |  | (1,491 | )
Total deferred tax assets |  | $ | 58,229 |  |  | $ | 81,325 |
Deferred tax liabilities: |  |  |  |  |  |  |  |
Accumulated other comprehensive income – Unrealized gains on securities |  | $ | 6,824 |  |  | $ | 8,142 |
Deferred investment income |  |  | 10,199 |  |  |  | 10,199 |
Pension plan |  |  | 21,567 |  |  |  | 16,835 |
Mortgage servicing rights |  |  | 3,255 |  |  |  | 3,671 |
Purchase accounting adjustments |  |  | 943 |  |  |  | 2,150 |
Other |  |  | 2,006 |  |  |  | 2,176 |
Total deferred tax liabilities |  | $ | 44,794 |  |  | $ | 43,173 |
Net deferred tax assets |  | $ | 13,435 |  |  | $ | 38,152 |
Components Of The Provision For Federal And State Income Taxes |
December 31, (In thousands) |  | 2011 |  |  | 2010 |  |  | 2009 |
Currently payable |  |  |  |  |  |  |  |  |
Federal |  | $ | 5,949 |  |  | $ | 26,130 |  |  | $ | 32,148 |
State |  |  | - |  |  |  | 109 |  |  |  | (273 | )
Deferred |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  | 22,378 |  |  |  | (8,333 | ) |  |  | (6,745 | )
State |  |  | 8,382 |  |  |  | (3,564 | ) |  |  | (2,187 | )
Valuation allowance |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  | - |  |  |  | - |  |  |  | - |
State |  |  | (2,294 | ) |  |  | 2,294 |  |  |  | - |
Total |  | $ | 34,415 |  |  | $ | 16,636 |  |  | $ | 22,943 |
Reconciliation Of Federal Income Tax Expense |
December 31 |  | 2011 |  |  | 2010 |  |  | 2009 |
Statutory federal corporate tax rate |  |  | 35.0 | % |  |  | 35.0 | % |  |  | 35.0 | %
Changes in rates resulting from: |  |  |  |  |  |  |  |  |  |  |  |
Tax exempt interest income, net of disallowed interest |  |  | (1.0 | )% |  |  | (1.7 | )% |  |  | (1.3 | )%
Bank owned life insurance |  |  | (1.5 | )% |  |  | (2.3 | )% |  |  | (1.8 | )%
Tax credits (low income housing) |  |  | (5.2 | )% |  |  | (6.7 | )% |  |  | (4.8 | )%
State income tax expense, net of federal benefit |  |  | 4.7 | % |  |  | (3.0 | )% |  |  | (1.6 | )%
Valuation allowance, net of federal benefit |  |  | (1.3 | )% |  |  | 2.0 | % |  |  | - |
Other |  |  | (1.2 | )% |  |  | (1.0 | )% |  |  | (1.9 | )%
Effective tax rate |  |  | 29.5 | % |  |  | 22.3 | % |  |  | 23.6 | %
Reconciliation Of The Beginning And Ending Amount Of Unrecognized Tax Benefits |
(In thousands) |  | 2011 |  |  | 2010 |  |  | 2009 |
January 1 Balance |  | $ | 477 |  |  | $ | 595 |  |  | $ | 783 |
Additions based on tax positions related to the current year |  |  | 70 |  |  |  | 69 |  |  |  | 64 |
Additions for tax positions of prior years |  |  | 1 |  |  |  | 7 |  |  |  | ---- |
Reductions for tax positions of prior years |  |  | (3 | ) |  |  | (131 | ) |  |  | (189 | )
Reductions due to statute of limitations |  |  | (60 | ) |  |  | (63 | ) |  |  | (63 | )
December 31 Balance |  | $ | 485 |  |  | $ | 477 |  |  | $ | 595 |

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