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Accumulated Other Comprehensive Income | 9 Months Ended
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Sep. 30, 2025
Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Accumulated Other Comprehensive Income | The following table provides changes in the balances of each component of accumulated other comprehensive income, net of tax, for the three- and nine-month periods ended September 30, 2025 and 2024:
Three Months Ended September 30, 2025 (in thousands) | Unrealized Gains and Losses On Available-for-Sale Securities |  | Postretirement Benefits Plans |  | Total
Beginning balance at June 30, 2025 | $ | 717 |  |  | $ | 105 |  |  | $ | 822 |
Other comprehensive income (loss) before calculations | 319 |  |  | (3) |  |  | 316 |
Amounts reclassified from accumulated other comprehensive income | (2) |  |  | — |  |  | (2) |
Net current-period other comprehensive income (loss) | 317 |  |  | (3) |  |  | 314 |
Ending balance | $ | 1,034 |  |  | $ | 102 |  |  | $ | 1,136 |
Three Months Ended September 30, 2024 (in thousands) | Unrealized Gains and Losses On Available-for-Sale Securities |  | Postretirement Benefits Plans |  | Total
Beginning balance at June 30, 2024 | $ | 113 |  |  | $ | 55 |  |  | $ | 168 |
Other comprehensive income before calculations | 920 |  |  | — |  |  | 920 |
Amounts reclassified from accumulated other comprehensive income | — |  |  | — |  |  | — |
Net current-period other comprehensive income | 920 |  |  | — |  |  | 920 |
Ending balance | $ | 1,033 |  |  | $ | 55 |  |  | $ | 1,088 |
Nine Months Ended September 30, 2025 (in thousands) | Unrealized Gains and Losses On Available-for-Sale Securities |  | Postretirement Benefits Plans |  | Total
Beginning balance at December 31, 2024 | $ | 300 |  |  | $ | 55 |  |  | $ | 355 |
Other comprehensive income before calculations | 740 |  |  | 47 |  |  | 787 |
Amounts reclassified from accumulated other comprehensive income | (6) |  |  | — |  |  | (6) |
Net current-period other comprehensive income | 734 |  |  | 47 |  |  | 781 |
Ending balance | $ | 1,034 |  |  | $ | 102 |  |  | $ | 1,136 |
Nine Months Ended September 30, 2024 (in thousands) | Unrealized Gains and Losses On Available-for-Sale Securities |  | Postretirement Benefits Plans |  | Total
Beginning balance at December 31, 2023 | $ | 583 |  |  | $ | 55 |  |  | $ | 638 |
Other comprehensive income before calculations | 394 |  |  | — |  |  | 394 |
Amounts reclassified from accumulated other comprehensive income | 56 |  |  | — |  |  | 56 |
Net current-period other comprehensive income | 450 |  |  | — |  |  | 450 |
Ending balance | $ | 1,033 |  |  | $ | 55 |  |  | $ | 1,088 |
The following table provides significant amounts reclassified out of each component of accumulated other comprehensive income for the three- and nine-month periods ended September 30, 2025 and 2024:
Three Months Ended September 30, 2025 (in thousands) |  |  |
Details about Accumulated Other Comprehensive Income Components | Amount Reclassified from Accumulated Other Comprehensive Income |  | Affected Line Item in the Consolidated Statements of Operations
Unrealized gains and losses on available-for-sale securities: |  |  |
Net realized gain on investments | $ | 1 |  |  |
Write-down of securities | — |  |  |
Total | $ | 1 |  |  | Net investment gains
Tax | 1 |  |  | Provision for income taxes
Net of Tax | $ | 2 |  |  |
Reclassifications for the period | $ | 2 |  |  |
Three Months Ended September 30, 2024 (in thousands) |  |  |
Details about Accumulated Other Comprehensive Income Components | Amount Reclassified from Accumulated Other Comprehensive Income |  | Affected Line Item in the Consolidated Statements of Operations
Unrealized gains and losses on available-for-sale securities: |  |  |
Net realized gain on investments | $ | — |  |  |
Write-down of securities | — |  |  |
Total | $ | — |  |  | Net investment gains
Tax | — |  |  | Provision for income taxes
Net of Tax | $ | — |  |  |
Reclassifications for the period | $ | — |  |  |
Nine Months Ended September 30, 2025 (in thousands) |  |  |
Details about Accumulated Other Comprehensive Income Components | Amount Reclassified from Accumulated Other Comprehensive Income |  | Affected Line Item in the Consolidated Statements of Operations
Unrealized gains and losses on available-for-sale securities: |  |  |
Net realized gain on investments | $ | 6 |  |  |
Write-down of securities | — |  |  |
Total | $ | 6 |  |  | Net investment gains
Tax | — |  |  | Provision for income taxes
Net of Tax | $ | 6 |  |  |
Reclassifications for the period | $ | 6 |  |  |
Nine Months Ended September 30, 2024 (in thousands) |  |  |
Details about Accumulated Other Comprehensive Income Components | Amount Reclassified from Accumulated Other Comprehensive Income |  | Affected Line Item in the Consolidated Statements of Operations
Unrealized gains and losses on available-for-sale securities: |  |  |
Net realized gain on investments | $ | — |  |  |
Write-down of securities | (74) |  |  |
Total | $ | (74) |  |  | Net investment gains
Tax | 18 |  |  | Provision for income taxes
Net of Tax | $ | (56) |  |  |
Reclassifications for the period | $ | (56) |  |  |

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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/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/220/tableOfContent + Details
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