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Other Comprehensive Income (Tables) | 12 Months Ended
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Dec. 31, 2012
Other Comprehensive Income [Abstract] |
Components of other comprehensive income and related tax effects | Other comprehensive income components and related tax effects were as follows for the years ended December 31, 2012, 2011, and 2010:
|  | 2012 |  |  | 2011 |  |  | 2010 |
Unrealized holding gains on available for sale securities |  | $ | 6,597 |  |  | $ | 22,457 |  |  | $ | 3,815 |
Less reclassification adjustment for gains recognized in earnings |  |  | (1,379 | ) |  |  | (614 | ) |  |  | (1,660 | )
Net unrealized gains |  |  | 5,218 |  |  |  | 21,843 |  |  |  | 2,155 |
Tax effect |  |  | (1,826 | ) |  |  | (7,642 | ) |  |  | (755 | )
Net-of-tax amount |  |  | 3,392 |  |  |  | 14,201 |  |  |  | 1,400 |
Unrealized holding gains (losses) on available for sale securities for which a portion of an other-than-temporary impairment has been recognized in earnings |  |  | 260 |  |  |  | (28 | ) |  |  | (466 | )
Less reclassification adjustment for impairment loss recognized in earnings |  |  | - |  |  |  | 398 |  |  |  | 2,241 |
Net unrealized gains |  |  | 260 |  |  |  | 370 |  |  |  | 1,775 |
Tax effect |  |  | (91 | ) |  |  | (130 | ) |  |  | (621 | )
Net-of-tax amount |  |  | 169 |  |  |  | 240 |  |  |  | 1,154 |
Actuarial loss on postemployment health care plan |  |  | (578 | ) |  |  | (757 | ) |  |  | (380 | )
Net amortization of transition obligation and actuarial gain |  |  | 41 |  |  |  | 11 |  |  |  | 3 |
Net unrealized loss on postemployment health care plan |  |  | (537 | ) |  |  | (746 | ) |  |  | (377 | )
Tax effect |  |  | 188 |  |  |  | 261 |  |  |  | 132 |
Net-of-tax amount |  |  | (349 | ) |  |  | (485 | ) |  |  | (245 | )
Unrealized loss on interest rate swap |  |  | (465 | ) |  |  | (1,205 | ) |  |  | (566 | )
Less reclassification adjustment for losses recognized in earnings |  |  | 390 |  |  |  | 402 |  |  |  | 401 |
Net unrealized gain (loss) |  |  | (75 | ) |  |  | (803 | ) |  |  | (165 | )
Tax effect |  |  | 26 |  |  |  | 281 |  |  |  | 58 |
Net-of-tax amount |  |  | (49 | ) |  |  | (522 | ) |  |  | (107 | )
Other comprehensive income |  | $ | 3,163 |  |  | $ | 13,434 |  |  | $ | 2,202 |
Summary of change in accumulated other comprehensive income (loss) | The following is a summary of the change in the accumulated other comprehensive income (loss) balance, net of tax, for the years ended December 31, 2012, 2011, and 2010:
|  | Balance 1/1/10 |  |  | Increase (Decrease) |  |  | Balance 12/31/10 |  |  | Increase (Decrease) |  |  | Balance 12/31/11 |  |  | Increase (Decrease) |  |  | Balance 12/31/12 |
Unrealized gains (losses) on securities available for sale |  | $ | (4,517 | ) |  | $ | 2,554 |  |  | $ | (1,963 | ) |  | $ | 14,441 |  |  | $ | 12,478 |  |  | $ | 3,561 |  |  | $ | 16,039 |
Unrealized gain (loss) on postretirement benefits plan |  |  | 98 |  |  |  | (245 | ) |  |  | (147 | ) |  |  | (485 | ) |  |  | (632 | ) |  |  | (349 | ) |  |  | (981 | )
Unrealized loss on interest rate swap |  |  | (456 | ) |  |  | (107 | ) |  |  | (563 | ) |  |  | (522 | ) |  |  | (1,085 | ) |  |  | (49 | ) |  |  | (1,134 | )
Total |  | $ | (4,875 | ) |  | $ | 2,202 |  |  | $ | (2,673 | ) |  | $ | 13,434 |  |  | $ | 10,761 |  |  | $ | 3,163 |  |  | $ | 13,924 |

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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=20435746&loc=SL7669686-108580 + Details
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- Definition Tabular disclosure of components of comprehensive income (loss) including, but not limited to: (a) foreign currency translation adjustments; (b) gains (losses) on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (c) gains (losses) on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (d) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (e) unrealized holding gains (losses) on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (f) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (g) the net gain (loss) and net prior service cost or 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=20435746&loc=d3e526-108580 + Details
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