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Retirement Plans (Tables) | 6 Months Ended
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Jun. 30, 2023
Retirement Benefits [Abstract] |
Summary of Funding and Administrative Cost of Qualified Noncontributory Defined Benefit Retirement Plan and 401(k) Plan Charged to Salaries and Employee Benefits | Funding and administrative costs of the qualified noncontributory defined benefit retirement plan and 401(k) plan charged to pension and other employee benefits in the consolidated condensed statements of income for the three and six-month period ended June 30, 2023 and 2022 were as follows (in thousands):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Qualified noncontributory defined benefit retirement plan | $ | 338 |  |  | 308 |  |  | 677 |  |  | 616 |
401(k) plan | 165 |  |  | 157 |  |  | 365 |  |  | 337 |
Components of Net Periodic Pension Cost of Nonqualified Defined Benefit Retirement Plan | The components of net periodic pension cost of the nonqualified defined benefit retirement plan for the three and six months ended June 30, 2023 and 2022 are summarized as follows (in thousands):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Interest cost | 19 |  |  | 14 |  |  | 38 |  |  | 26 |
Amortization of unrecognized net loss | — |  |  | 2 |  |  | — |  |  | 4 |
Net periodic pension cost | $ | 19 |  |  | 16 |  |  | $ | 38 |  |  | 30 |
Amount Recognized in Accumulated Other Comprehensive Income, Net of Deferred Federal Income Taxes for Nonqualified Defined Retirement Plan | Amounts recognized in accumulated other comprehensive loss, net of tax, for the nonqualified defined benefit retirement plan for the three and six months ended June 30, 2023 and 2022 were as follows (in thousands):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Net actuarial loss | $ | — |  |  | (2) |  |  | — |  |  | (3) |

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- Definition Tabular disclosure of the net gain (loss) and net prior service cost or credit recognized in other comprehensive income (loss) for the period for pension plans and/or other employee benefit plans, and reclassification adjustments of other comprehensive income (loss) for the period, as those amounts, including amortization of the net transition asset or obligation, are recognized as components of net periodic benefit cost. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Tabular disclosure of the costs related to the various types of retirement plans including defined benefit pension plan cost, defined contribution plan cost, other postretirement benefit plan cost, and net periodic benefit cost. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 20 -Topic 715 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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