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Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Abstract] |
Components Of Other Comprehensive Income (Loss) |
|  | Pre-tax |  |  |  |  |  | Net-of-tax |
|  | Amount |  |  | Tax Effect |  |  | Amount |
2016 |  |  |  |  |  |  |  |  |
Securities available for sale and transferred securities: |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period | $ | (2,146 | ) | $ | (828 | ) | $ | (1,318 | )
Reclassification adjustment for net gains included in net income (1) |  | (2,793 | ) |  | (1,078 | ) |  | (1,715 | )
Total securities available for sale and transferred securities |  | (4,939 | ) |  | (1,906 | ) |  | (3,033 | )
Pension and post-retirement obligations: |  |  |  |  |  |  |  |  |
Net actuarial gains (losses) arising during the year |  | (241 | ) |  | (93 | ) |  | (148 | )
Amortization of net actuarial loss and prior service cost included in income |  | 907 |  |  | 350 |  |  | 557 |
Total pension and post-retirement obligations |  | 666 |  |  | 257 |  |  | 409 |
Other comprehensive loss | $ | (4,273 | ) | $ | (1,649 | ) | $ | (2,624 | )
2015 |  |  |  |  |  |  |  |  |
Securities available for sale and transferred securities: |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period | $ | (1,529 | ) | $ | (591 | ) | $ | (938 | )
Reclassification adjustment for net gains included in net income (1) |  | (2,251 | ) |  | (868 | ) |  | (1,383 | )
Total securities available for sale and transferred securities |  | (3,780 | ) |  | (1,459 | ) |  | (2,321 | )
Pension and post-retirement obligations: |  |  |  |  |  |  |  |  |
Net actuarial gains (losses) arising during the year |  | (887 | ) |  | (342 | ) |  | (545 | )
Amortization of net actuarial loss and prior service cost included in income |  | 895 |  |  | 345 |  |  | 550 |
Total pension and post-retirement obligations |  | 8 |  |  | 3 |  |  | 5 |
Other comprehensive loss | $ | (3,772 | ) | $ | (1,456 | ) | $ | (2,316 | )
2014 |  |  |  |  |  |  |  |  |
Securities available for sale and transferred securities: |  |  |  |  |  |  |  |  |
Change in unrealized gain/loss during the period | $ | 14,008 |  | $ | 5,549 |  | $ | 8,459 |
Reclassification adjustment for net gains included in net income (1) |  | (2,478 | ) |  | (981 | ) |  | (1,497 | )
Total securities available for sale and transferred securities |  | 11,530 |  |  | 4,568 |  |  | 6,962 |
Pension and post-retirement obligations: |  |  |  |  |  |  |  |  |
Net actuarial gains (losses) arising during the year |  | (9,709 | ) |  | (3,846 | ) |  | (5,863 | )
Amortization of net actuarial loss and prior service cost included in income |  | 128 |  |  | 51 |  |  | 77 |
Total pension and post-retirement obligations |  | (9,581 | ) |  | (3,795 | ) |  | (5,786 | )
Other comprehensive income | $ | 1,949 |  | $ | 773 |  | $ | 1,176 |
(1) Includes amounts related to the amortization/accretion of unrealized net gains and losses related to the Company's reclassification of available for sale investment securities to the held to maturity category. The unrealized net gains/losses will be amortized/accreted over the remaining life of the investment securities as an adjustment of yield.
Components Of Accumulated Other Comprehensive Income (Loss) |
|  | Securities |  |  |  |  |  |  |
|  | Available for |  |  | Pension and |  |  | Accumulated |
|  | Sale and |  |  | Post- |  |  | Other |
|  | Transferred |  |  | retirement |  |  | Comprehensive |
|  | Securities |  |  | Obligations |  |  | Income (Loss) |
Balance at January 1, 2016 | $ | (696 | ) | $ | (10,631 | ) | $ | (11,327 | )
Other comprehensive income (loss) before reclassifications |  | (1,318 | ) |  | (148 | ) |  | (1,466 | )
Amounts reclassified from accumulated other comprehensive income |  | (1,715 | ) |  | 557 |  |  | (1,158 | )
Net current period other comprehensive (loss) income |  | (3,033 | ) |  | 409 |  |  | (2,624 | )
Balance at December 31, 2016 | $ | (3,729 | ) | $ | (10,222 | ) | $ | (13,951 | )
Balance at January 1, 2015 | $ | 1,625 |  | $ | (10,636 | ) | $ | (9,011 | )
Other comprehensive income (loss) before reclassifications |  | (938 | ) |  | (545 | ) |  | (1,483 | )
Amounts reclassified from accumulated other comprehensive income |  | (1,383 | ) |  | 550 |  |  | (833 | )
Net current period other comprehensive (loss) income |  | (2,321 | ) |  | 5 |  |  | (2,316 | )
Balance at December 31, 2015 | $ | (696 | ) | $ | (10,631 | ) | $ | (11,327 | )
Balance at January 1, 2014 | $ | (5,337 | ) | $ | (4,850 | ) | $ | (10,187 | )
Other comprehensive income (loss) before reclassifications |  | 8,459 |  |  | (5,863 | ) |  | 2,596 |
Amounts reclassified from accumulated other comprehensive income |  | (1,497 | ) |  | 77 |  |  | (1,420 | )
Net current period other comprehensive (loss) income |  | 6,962 |  |  | (5,786 | ) |  | 1,176 |
Balance at December 31, 2014 | $ | 1,625 |  | $ | (10,636 | ) | $ | (9,011 | )
Amounts Reclassified Out Of Each Component Of Accumulated Other Comprehensive Income (Loss) |
|  | Amount Reclassified from |  |
Details About Accumulated Other |  | Accumulated Other |  | Affected Line Item in the
Comprehensive Income Components |  | Comprehensive Income |  | Consolidated Statement of Income
|  | 2016 |  |  | 2015 |  |
Realized gain on sale of investment securities | $ | 2,695 |  | $ | 1,988 |  | Net gain on disposal of investment securities
Amortization of unrealized holding gains (losses) |  |  |  |  |  |  |
on investment securities transferred from |  |  |  |  |  |  |
available for sale to held to maturity |  | 98 |  |  | 263 |  | Interest income
|  | 2,793 |  |  | 2,251 |  | Total before tax
|  | (1,078 | ) |  | (868 | ) | Income tax expense
|  | 1,715 |  |  | 1,383 |  | Net of tax
Amortization of pension and post-retirement items: |  |  |  |  |  |  |
Prior service credit (1) |  | 48 |  |  | 48 |  | Salaries and employee benefits
Net actuarial losses (1) |  | (955 | ) |  | (943 | ) | Salaries and employee benefits
|  | (907 | ) |  | (895 | ) | Total before tax
|  | 350 |  |  | 345 |  | Income tax benefit
|  | (557 | ) |  | (550 | ) | Net of tax
Total reclassified for the period | $ | 1,158 |  | $ | 833 |  |
(1) These items are included in the computation of net periodic pension expense. See Note 17 – Employee Benefit Plans for additional information.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 + Details
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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e526-108580 + Details
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