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Other Comprehensive Income (Loss) (Tables) | 6 Months Ended
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Jun. 30, 2014
Equity [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The following table summarizes activity in the unrealized gain or loss on postretirement benefits included in other comprehensive income (loss) for the six months and quarters ended June 30, 2014 and 2013.
| For the six months ended June 30, |  | For the quarters ended June 30,
| 2014 |  | 2013 |  | 2014 |  | 2013
Unrecognized postretirement benefits at beginning of period | $ | 188,000 |  |  | $ | (123,000 | ) |  | $ | 188,000 |  |  | $ | (119,000 | )
Amortization of unrecognized transition obligation | — |  |  | 5,000 |  |  | — |  |  | — |
Change in accumulated losses | — |  |  | 4,000 |  |  | — |  |  | 6,000 |
Related deferred taxes | — |  |  | (1,000 | ) |  | — |  |  | (2,000 | )
Unrecognized postretirement benefits at end of period | $ | 188,000 |  |  | $ | (115,000 | ) |  | $ | 188,000 |  |  | $ | (115,000 | )
The following table summarizes activity in the unrealized gain or loss on available for sale securities included in other comprehensive income (loss) for the six months and quarters ended June 30, 2014 and 2013.
| For the six months ended June 30, |  | For the quarters ended June 30,
| 2014 |  | 2013 |  | 2014 |  | 2013
Balance at beginning of period | $ | (6,591,000 | ) |  | $ | 7,940,000 |  |  | $ | (1,767,000 | ) |  | $ | 5,474,000 |
Unrealized gains (losses) arising during the period | 12,558,000 |  |  | (16,410,000 | ) |  | 5,101,000 |  |  | (12,915,000 | )
Reclassification of realized gains during the period | (40,000 | ) |  | (1,087,000 | ) |  | (4,000 | ) |  | (788,000 | )
Related deferred taxes | (4,381,000 | ) |  | 6,124,000 |  |  | (1,784,000 | ) |  | 4,796,000 |
Net change | 8,137,000 |  |  | (11,373,000 | ) |  | 3,313,000 |  |  | (8,907,000 | )
Balance at end of period | $ | 1,546,000 |  |  | $ | (3,433,000 | ) |  | $ | 1,546,000 |  |  | $ | (3,433,000 | )

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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=28358780&loc=SL7669686-108580 + Details
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