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Other Comprehensive Income (Loss) | 3 Months Ended
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Mar. 31, 2022
Equity [Abstract] |
Other Comprehensive Income (Loss) | Other Comprehensive Income (Loss) The tables below summarize the changes in accumulated other comprehensive income (loss) by component for the three months ended March 31, 2022 and 2021, net of tax:
March 31, 2022 |  | Unrealized Gains and Losses on Available-for-Sale Securities |  | Postretirement Benefit Items |  | Total
Beginning Balance at January 1, 2022 |  | $ | 16,052 |  |  | $ | (568) |  |  | $ | 15,484 |
Other Comprehensive Income (Loss) Before Reclassification |  | (133,591) |  |  | — |  |  | (133,591) |
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | (294) |  |  | — |  |  | (294) |
Net Current Period Other Comprehensive Income (Loss) |  | (133,885) |  |  | — |  |  | (133,885) |
Ending Balance at March 31, 2022 |  | $ | (117,833) |  |  | $ | (568) |  |  | $ | (118,401) |
March 31, 2021 |  | Unrealized Gains and Losses on Available-for-Sale Securities |  | Postretirement Benefit Items |  | Total
Beginning Balance at January 1, 2021 |  | $ | 35,943 |  |  | $ | (568) |  |  | $ | 35,375 |
Other Comprehensive Income (Loss) Before Reclassification |  | (21,058) |  |  | — |  |  | (21,058) |
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | (770) |  |  | — |  |  | (770) |
Net Current Period Other Comprehensive Income (Loss) |  | (21,828) |  |  | — |  |  | (21,828) |
Ending Balance at March 31, 2021 |  | $ | 14,115 |  |  | $ | (568) |  |  | $ | 13,547 |
The tables below summarize the classifications out of accumulated other comprehensive income (loss) by component for the three months ended March 31, 2022 and 2021:
Details about Accumulated Other Comprehensive Income (Loss) Components |  | Amount Reclassified From Accumulated Other Comprehensive Income (Loss) |  | Affected Line Item in the Statement Where Net Income is Presented
Unrealized Gains and Losses on Available-for-Sale Securities |  | $ | 372 |  |  | Net Gains on Securities
|  | (78) |  |  | Income Tax Expense
|  | 294 |  |  | Net of Tax
Total Reclassifications for the Three Months Ended March 31, 2022 |  | $ | 294 |  |  |
Details about Accumulated Other Comprehensive Income (Loss) Components |  | Amount Reclassified From Accumulated Other Comprehensive Income (Loss) |  | Affected Line Item in the Statement Where Net Income is Presented
Unrealized Gains and Losses on Available-for-Sale Securities |  | $ | 975 |  |  | Net Gains on Securities
|  | (205) |  |  | Income Tax Expense
|  | 770 |  |  | Net of Tax
Total Reclassifications for the Three Months Ended March 31, 2021 |  | $ | 770 |  |  |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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