v3.26.3
Employee Benefits - Director Pension Plan (Details) - Director Pension Plan - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Employee Benefits          
Accrued retirement liabilities $ 6,900,000   $ 6,900,000   $ 6,800,000
Net periodic pension cost $ 160,000 $ 162,000 $ 480,000 $ 486,000