Annual report [Section 13 and 15(d), not S-K Item 405]

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

v3.25.4
SECURITIES AND OTHER INVESTMENTS (Schedule of Carrying Value, Gross Unrealized Gains and Losses and Estimated Fair Value of Securities) (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities $ 884,216 $ 803,851
Gross Unrealized Gains 4,242 743
Gross Unrealized Losses (31,646) (45,259)
Held-to-maturity Securities, Fair Value 856,812 759,335
US States and Political Subdivisions Debt Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 793,162 697,683
Gross Unrealized Gains 4,139 715
Gross Unrealized Losses (20,951) (31,763)
Held-to-maturity Securities, Fair Value 776,350 666,635
Corporate Bond Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 2,255 3,322
Gross Unrealized Gains 0 0
Gross Unrealized Losses (26) (82)
Held-to-maturity Securities, Fair Value 2,229 3,240
Collateralized Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 88,799 102,846
Commercial Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 40,777 44,709
Gross Unrealized Gains 103 28
Gross Unrealized Losses (6,123) (6,844)
Held-to-maturity Securities, Fair Value 34,757 37,893
Residential Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 48,022 58,137
Gross Unrealized Gains 0 0
Gross Unrealized Losses (4,546) (6,570)
Held-to-maturity Securities, Fair Value 43,476 51,567
Agency Securities [Member] | Commercial Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 29,074 26,787
Gross Unrealized Gains 0 0
Gross Unrealized Losses (5,619) (6,185)
Held-to-maturity Securities, Fair Value 23,455 20,602
Agency Securities [Member] | Residential Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 35,793 37,808
Gross Unrealized Gains 0 0
Gross Unrealized Losses (4,397) (6,288)
Held-to-maturity Securities, Fair Value 31,396 31,520
Non-agency | Commercial Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 11,703 17,922
Gross Unrealized Gains 103 28
Gross Unrealized Losses (504) (659)
Held-to-maturity Securities, Fair Value 11,302 17,291
Non-agency | Residential Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 12,229 20,329
Gross Unrealized Gains 0 0
Gross Unrealized Losses (149) (282)
Held-to-maturity Securities, Fair Value $ 12,080 $ 20,047