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Supplemental Comprehensive Income Disclosures | 12 Months Ended
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Dec. 31, 2014
Supplemental Comprehensive Income Disclosures [Abstract] |
Supplemental Comprehensive Income Disclosures | Supplemental Comprehensive Income Disclosures The following table identifies the related tax effects allocated to each component of other comprehensive income in the Consolidated Statements of Comprehensive Income as of December 31. Reclassification adjustments related to securities available for sale are included in the "Net securities gains" line in the Consolidated Statements of Income and reclassification adjustments related to losses on derivatives are included in the "Other operating expenses" line in the Condensed Consolidated Statements of Income.
| 2014 |  | 2013 |  | 2012
| Pretax Amount |  | Tax (Expense) Benefit |  | Net of Tax Amount |  | Pretax Amount |  | Tax (Expense) Benefit |  | Net of Tax Amount |  | Pretax Amount |  | Tax (Expense) Benefit |  | Net of Tax Amount
| (dollars in thousands)
Unrealized gains (losses) on securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unrealized holding gains (losses) on securities arising during the period | $ | 25,153 |  |  | $ | (8,803 | ) |  | $ | 16,350 |  |  | $ | (34,975 | ) |  | $ | 12,233 |  |  | $ | (22,742 | ) |  | $ | (661 | ) |  | $ | 238 |  |  | $ | (423 | )
Reclassification adjustment for (gains) losses on securities included in net income | (550 | ) |  | 193 |  |  | (357 | ) |  | 1,158 |  |  | (405 | ) |  | 753 |  |  | (192 | ) |  | 67 |  |  | (125 | )
Total unrealized gains (losses) on securities | 24,603 |  |  | (8,610 | ) |  | 15,993 |  |  | (33,817 | ) |  | 11,828 |  |  | (21,989 | ) |  | (853 | ) |  | 305 |  |  | (548 | )
Unrealized gains (losses) on derivatives: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unrealized holding gains on derivatives arising during the period | 472 |  |  | (165 | ) |  | 307 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Reclassification adjustment for gains on derivatives included in net income | (10 | ) |  | 3 |  |  | (7 | ) |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total unrealized gains on derivatives | 462 |  |  | (162 | ) |  | 300 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Unrealized (losses) gains for postretirement obligations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transition obligation | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 2 |  |  | (1 | ) |  | 1 |
Net (loss) gain | (313 | ) |  | 109 |  |  | (204 | ) |  | 219 |  |  | (77 | ) |  | 142 |  |  | (300 | ) |  | 105 |  |  | (195 | )
Total unrealized (losses) gains for postretirement obligations | (313 | ) |  | 109 |  |  | (204 | ) |  | 219 |  |  | (77 | ) |  | 142 |  |  | (298 | ) |  | 104 |  |  | (194 | )
Total other comprehensive income (loss) | $ | 24,752 |  |  | $ | (8,663 | ) |  | $ | 16,089 |  |  | $ | (33,598 | ) |  | $ | 11,751 |  |  | $ | (21,847 | ) |  | $ | (1,151 | ) |  | $ | 409 |  |  | $ | (742 | )
The following table details the change in components of OCI for the year-ended December 31:
| 2014
| Securities Available for Sale |  | Derivatives |  | Post-Retirement Obligation |  | Accumulated Other Comprehensive Income
| (dollars in thousands)
Balance at January 1 | $ | (20,868 | ) |  | $ | — |  |  | $ | 280 |  |  | $ | (20,588 | )
Other comprehensive income before reclassification adjustment | 16,350 |  |  | 307 |  |  |  |  | 16,657 |
Amounts reclassified from accumulated other comprehensive income (loss) | (357 | ) |  | (7 | ) |  |  |  | (364 | )
Transition obligation |  |  |  |  | — |  |  | — |
Net gain |  |  |  |  | (204 | ) |  | (204 | )
Net other comprehensive income during the period | 15,993 |  |  | 300 |  |  | (204 | ) |  | 16,089 |
Balance at December 31 | $ | (4,875 | ) |  | $ | 300 |  |  | $ | 76 |  |  | $ | (4,499 | )
| 2013
| Securities Available for Sale |  | Derivatives |  | Post-Retirement Obligation |  | Accumulated Other Comprehensive Income
| (dollars in thousands)
Balance at January 1 | $ | 1,121 |  |  | $ | — |  |  | $ | 138 |  |  | $ | 1,259 |
Other comprehensive income before reclassification adjustment | (22,742 | ) |  | — |  |  |  |  | (22,742 | )
Amounts reclassified from accumulated other comprehensive income (loss) | 753 |  |  | — |  |  |  |  | 753 |
Transition obligation |  |  |  |  | — |  |  | — |
Net gain |  |  |  |  | 142 |  |  | 142 |
Net other comprehensive income during the period | (21,989 | ) |  | — |  |  | 142 |  |  | (21,847 | )
Balance at December 31 | $ | (20,868 | ) |  | $ | — |  |  | $ | 280 |  |  | $ | (20,588 | )
| 2012
| Securities Available for Sale |  | Derivatives |  | Post-Retirement Obligation |  | Accumulated Other Comprehensive Income
| (dollars in thousands)
Balance at January 1 | $ | 1,669 |  |  | $ | — |  |  | $ | 332 |  |  | $ | 2,001 |
Other comprehensive income before reclassification adjustment | (423 | ) |  | — |  |  |  |  | (423 | )
Amounts reclassified from accumulated other comprehensive income (loss) | (125 | ) |  | — |  |  |  |  | (125 | )
Transition obligation |  |  |  |  | 1 |  |  | 1 |
Net gain |  |  |  |  | (195 | ) |  | (195 | )
Net other comprehensive income during the period | (548 | ) |  | — |  |  | (194 | ) |  | (742 | )
Balance at December 31 | $ | 1,121 |  |  | $ | — |  |  | $ | 138 |  |  | $ | 1,259 |

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e681-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e689-108580 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669619-108580 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e640-108580 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e716-108580 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e709-108580 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Reclassification Adjustments -URI http://asc.fasb.org/extlink&oid=6522872 + Details
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