v3.26.3
Accumulated Other Comprehensive Income - Amount Reclassified from AOCI (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Accumulated Other Comprehensive Income        
Realized loss on securities available-for-sale   $ 159   $ (568)
Transition asset $ 1,302 1,160 $ 2,417 3,463
Actuarial gains (losses) 557 1,335 1,330 2,146
Total before tax 17,255 13,018 43,405 37,895
Tax effect 4,769 2,999 5,976 8,711
Net Income (Loss) $ 12,486 10,019 $ 37,429 29,184
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized gains and losses on available-for-sale securities        
Accumulated Other Comprehensive Income        
Realized loss on securities available-for-sale   159   (568)
Total before tax   159   (568)
Tax effect   33   (119)
Net Income (Loss)   126   (449)
Reclassification out of Accumulated Other Comprehensive Income [Member] | AOCI Attributable to Parent [Member]        
Accumulated Other Comprehensive Income        
Net Income (Loss)   $ 126   $ (449)