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v3.23.2

Retirement Benefit Plans (Tables) | 6 Months Ended
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Jun. 30, 2023
Retirement Benefits [Abstract] |
Schedule of Defined Benefit Plans Disclosures | The following tables provide the components of net periodic benefit costs for the three and six-month periods ended June 30, 2023 and 2022:
|  | Employees' |  | Select Executive |  | Postretirement
|  | Pension |  | Retirement |  | Benefit
|  | Plan |  | Plan |  | Plans
Net Periodic Cost |  |  |  |  |  |
For the Three Months Ended June 30, 2023: |  |  |  |  |  |
Service Cost 1 |  | $ | 384 |  |  | $ | 122 |  |  | $ | 10 |
Interest Cost 2 |  | 519 |  |  | 97 |  |  | 80 |
Expected Return on Plan Assets 2 |  | (851) |  |  | — |  |  | — |
Amortization of Prior Service Cost 2 |  | 15 |  |  | 10 |  |  | 26 |
Amortization of Net Loss (Gain) 2 |  | 23 |  |  | 19 |  |  | (98) |
Net Periodic Cost |  | $ | 90 |  |  | $ | 248 |  |  | $ | 18 |
Plan Contributions During the Period |  | $ | — |  |  | $ | 110 |  |  | $ | 20 |
For the Three Months Ended June 30, 2022: |  |  |  |  |  |
Service Cost 1 |  | $ | 451 |  |  | $ | 271 |  |  | $ | 18 |
Interest Cost 2 |  | 352 |  |  | 61 |  |  | 60 |
Expected Return on Plan Assets 2 |  | (1,058) |  |  | — |  |  | — |
Amortization of Prior Service Cost 2 |  | 20 |  |  | 11 |  |  | 26 |
Amortization of Net Loss (Gain) 2 |  | — |  |  | 67 |  |  | (46) |
Net Periodic (Benefit) Cost |  | $ | (235) |  |  | $ | 410 |  |  | $ | 58 |
Plan Contributions During the Period |  | $ | — |  |  | $ | 115 |  |  | $ | 33 |
Net Periodic Benefit Cost |  |  |  |  |  |
For the Six Months Ended June 30, 2023: |  |  |  |  |  |
Service Cost 1 |  | $ | 797 |  |  | $ | 285 |  |  | $ | 28 |
Interest Cost 2 |  | 1,049 |  |  | 159 |  |  | 167 |
Expected Return on Plan Assets 2 |  | (1,708) |  |  | — |  |  | — |
Amortization of Prior Service Cost 2 |  | 31 |  |  | 20 |  |  | 52 |
Amortization of Net Loss (Gain) 2 |  | 59 |  |  | 37 |  |  | (177) |
Net Periodic Cost |  | $ | 228 |  |  | $ | 501 |  |  | $ | 70 |
Plan Contributions During the Period |  | $ | — |  |  | $ | 226 |  |  | $ | 47 |
Estimated Future Contributions in the Current Fiscal Year |  | $ | — |  |  | $ | 226 |  |  | $ | 47 |
For the Six Months Ended June 30, 2022: |  |  |  |  |  |
Service Cost 1 |  | $ | 939 |  |  | $ | 418 |  |  | $ | 45 |
Interest Cost 2 |  | 719 |  |  | 112 |  |  | 124 |
Expected Return on Plan Assets 2 |  | (2,157) |  |  | — |  |  | — |
Amortization of Prior Service Cost 2 |  | 39 |  |  | 22 |  |  | 53 |
Amortization of Net Loss (Gain) 2 |  | — |  |  | 106 |  |  | (78) |
Net Periodic (Benefit) Cost |  | $ | (460) |  |  | $ | 658 |  |  | $ | 144 |
Plan Contributions During the Period |  | $ | — |  |  | $ | 231 |  |  | $ | 88 |
Footnotes: 1. Included in Salaries and Employee Benefits on the Consolidated Statements of Income 2. Included in Other Operating Expense on the Consolidated Statements of Income

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