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Benefit Plans - Fair Values of our Pension Plan Assets by Asset Category (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair values of the Corporation's pension plan assets | $ 7,577 | $ 7,303 | $ 7,066
Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair values of the Corporation's pension plan assets | 7,577 | 7,303 |
Short-term investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair values of the Corporation's pension plan assets | 52 | 234 |
Short-term investments | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair values of the Corporation's pension plan assets | 52 | 234 |
Fixed income |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair values of the Corporation's pension plan assets | 3,537 | 3,322 |
Fixed income | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair values of the Corporation's pension plan assets | 3,537 | 3,322 |
Equity investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair values of the Corporation's pension plan assets | 3,988 | 3,747 |
Equity investments | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair values of the Corporation's pension plan assets | $ 3,988 | $ 3,747 |

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