Quarterly report [Sections 13 or 15(d)]

SECURITIES AND OTHER INVESTMENTS (Schedule of Carrying Value, Gross Unrealized Gains and Losses and Estimated Fair Value of Securities) (Details)

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SECURITIES AND OTHER INVESTMENTS (Schedule of Carrying Value, Gross Unrealized Gains and Losses and Estimated Fair Value of Securities) (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities $ 860,906 $ 884,216
Gross Unrealized Gains 3,602 4,242
Gross Unrealized Losses (32,744) (31,646)
Held-to-maturity Securities, Fair Value 831,764 856,812
US States and Political Subdivisions Debt Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 774,441 793,162
Gross Unrealized Gains 3,541 4,139
Gross Unrealized Losses (21,677) (20,951)
Held-to-maturity Securities, Fair Value 756,305 776,350
Corporate Bond Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 1,710 2,255
Gross Unrealized Gains 0 0
Gross Unrealized Losses (29) (26)
Held-to-maturity Securities, Fair Value 1,681 2,229
Collateralized Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 84,755 88,799
Commercial Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 39,238 40,777
Gross Unrealized Gains 61 103
Gross Unrealized Losses (6,246) (6,123)
Held-to-maturity Securities, Fair Value 33,053 34,757
Residential Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 45,517 48,022
Gross Unrealized Gains 0 0
Gross Unrealized Losses (4,792) (4,546)
Held-to-maturity Securities, Fair Value 40,725 43,476
Agency Securities [Member] | Commercial Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 28,829 29,074
Gross Unrealized Gains 0 0
Gross Unrealized Losses (5,755) (5,619)
Held-to-maturity Securities, Fair Value 23,074 23,455
Agency Securities [Member] | Residential Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 34,301 35,793
Gross Unrealized Gains 0 0
Gross Unrealized Losses (4,604) (4,397)
Held-to-maturity Securities, Fair Value 29,697 31,396
Non-agency | Commercial Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 10,409 11,703
Gross Unrealized Gains 61 103
Gross Unrealized Losses (491) (504)
Held-to-maturity Securities, Fair Value 9,979 11,302
Non-agency | Residential Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 11,216 12,229
Gross Unrealized Gains 0 0
Gross Unrealized Losses (188) (149)
Held-to-maturity Securities, Fair Value $ 11,028 $ 12,080