v3.26.1
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Other Comprehensive Income (Loss), before Reclassification Adjustments and Tax [Abstract]        
Unrealized gain (loss) on investment securities $ (36,491) $ 33,525    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax (265) 1,825    
Retirement obligation 0 0    
Foreign currency translation (185) 5    
Total (36,941) 35,355    
Other Comprehensive Income (Loss) Reclassifications before Tax [Abstract]        
Realized gain (loss) on securities available-for-sale (1,022) (9,913)    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax (199) (199)    
Retirement obligation (525) (625)    
Foreign currency translation 0 0    
Total (1,746) (10,737)    
Transactions Pre-tax        
Unrealized gain (loss) on investment securities (35,469) 43,438    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax (66) 2,024    
Unfunded pension obligation 525 625    
Foreign currency translation (185) 5    
Total (35,195) 46,092    
Transactions Tax-effect        
Unrealized gain (loss) on investment securities 7,813 (9,568)    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax (15) 468    
Retirement obligation (121) (145)    
Foreign currency translation 0 0    
Total 7,707 (10,181)    
Transactions Net of tax        
Unrealized gain (loss) on investment securities (27,656) 33,870    
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax (51) 1,556    
Retirement obligation 404 480    
Foreign currency translation (185) 5    
Total (27,488) 35,911    
Balances Net of tax        
Unrealized gain (loss) on investment securities (191,579) (222,644) $ (163,923) $ (256,514)
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax 43 380 94 (1,176)
Retirement obligation (24,665) (30,000) (25,069) (30,480)
Foreign currency translation (1,229) (1,624) (1,044) (1,629)
Accumulated other comprehensive loss (217,430) (253,888) $ (189,942) $ (289,799)
Accumulated other comprehensive income (loss)        
Transactions Net of tax        
Total $ (27,488) $ 35,911