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Change in Accumulated Other Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2021
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract] |
Changes To Accumulated Other Comprehensive Income By Components | Changes to accumulated other comprehensive income by component are shown in the following tables for the periods indicated:
|  | Three Months Ended |
|  | March 31, |
|  | 2021 |  |  | 2020 |
|  | Unrealized Gains and Losses on Available for Sale Securities |  |  | Change in Benefit Obligations and Plan Assets for the Post Retirement Benefit Plan |  |  | Total |  |  | Unrealized Gains and Losses on Available for Sale Securities |  |  | Change in Benefit Obligations and Plan Assets for the Post Retirement Benefit Plan |  |  | Total |
|  | (dollars in thousands) |  |  | (dollars in thousands) |
January 1 |  | $ | 3,260 |  |  | $ | 19 |  |  | $ | 3,279 |  |  | $ | 1,438 |  |  | $ | 44 |  |  | $ | 1,482 |
Other comprehensive income before reclassifications |  |  | (2,699 | ) |  |  | — |  |  |  | (2,699 | ) |  |  | 3,565 |  |  |  | — |  |  |  | 3,565 |
Reclassifications |  |  | (76 | ) |  |  | — |  |  |  | (76 | ) |  |  | — |  |  |  | — |  |  |  | — |
Tax effect of current period changes |  |  | 582 |  |  |  | — |  |  |  | 582 |  |  |  | (749 | ) |  |  | — |  |  |  | (749 | )
Current period changes net of taxes |  |  | (2,193 | ) |  |  | — |  |  |  | (2,193 | ) |  |  | 2,816 |  |  |  | — |  |  |  | 2,816 |
March 31 |  | $ | 1,067 |  |  | $ | 19 |  |  | $ | 1,086 |  |  | $ | 4,254 |  |  | $ | 44 |  |  | $ | 4,298 |

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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