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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