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Accumulated Other Comprehensive Income (Loss) (Tables) | 9 Months Ended
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Sep. 30, 2011
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule Of Accumulated Other Comprehensive Income (Loss) |
| September 30, 2011 |  | December 31, 2010 |  | September 30, 2010
| Accumulated other comprehensive income (loss) |  | Deferred tax expense (benefit) |  | Accumulated other comprehensive income (loss), net of tax |  | Accumulated other comprehensive income (loss) |  | Deferred tax expense (benefit) |  | Accumulated other comprehensive income (loss), net of tax |  | Accumulated other comprehensive income (loss) |  | Deferred tax expense (benefit) |  | Accumulated other comprehensive income (loss), net of tax
Unrealized gains on investment securities available for sale | $ | 28,830 |  |  | $ | 11,340 |  |  | $ | 17,490 |  |  | $ | 23,195 |  |  | $ | 9,143 |  |  | $ | 14,052 |  |  | $ | 41,026 |  |  | $ | 15,427 |  |  | $ | 25,599 |
Funded status of defined benefit plan | (68,752 | ) |  | (26,923 | ) |  | (41,829 | ) |  | (73,696 | ) |  | (28,859 | ) |  | (44,837 | ) |  | (67,884 | ) |  | (26,583 | ) |  | (41,301 | )
Unrealized loss on cash flow hedge | (13,531 | ) |  | (5,343 | ) |  | (8,188 | ) |  | (9,492 | ) |  | (3,748 | ) |  | (5,744 | ) |  | (14,263 | ) |  | (5,632 | ) |  | (8,631 | )
Total | $ | (53,453 | ) |  | $ | (20,926 | ) |  | $ | (32,527 | ) |  | $ | (59,993 | ) |  | $ | (23,464 | ) |  | $ | (36,529 | ) |  | $ | (41,121 | ) |  | $ | (16,788 | ) |  | $ | (24,333 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + Details
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