Quarterly report pursuant to Section 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
Sep. 30, 2024
Dec. 31, 2023
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities $ 807,080 $ 837,378
Gross Unrealized Gains 3,946 6,334
Gross Unrealized Losses (34,199) (35,638)
Held-to-maturity Securities, Fair Value 776,827 808,074
US States and Political Subdivisions Debt Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 695,460 699,189
Gross Unrealized Gains 3,775 6,175
Gross Unrealized Losses (23,241) (23,464)
Held-to-maturity Securities, Fair Value 675,994 681,900
Corporate Bond Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 3,484 4,349
Gross Unrealized Gains 0 0
Gross Unrealized Losses (64) (100)
Held-to-maturity Securities, Fair Value 3,420 4,249
Collateralized Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 108,136 133,840
Commercial Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 48,382 51,980
Gross Unrealized Gains 156 37
Gross Unrealized Losses (5,841) (6,019)
Held-to-maturity Securities, Fair Value 42,697 45,998
Residential Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 59,754 81,860
Gross Unrealized Gains 15 122
Gross Unrealized Losses (5,053) (6,055)
Held-to-maturity Securities, Fair Value 54,716 75,927
Agency Securities [Member] | Commercial Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 27,164 27,477
Gross Unrealized Gains 0 0
Gross Unrealized Losses (5,308) (5,570)
Held-to-maturity Securities, Fair Value 21,856 21,907
Agency Securities [Member] | Residential Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 38,339 40,562
Gross Unrealized Gains 0 0
Gross Unrealized Losses (4,872) (5,713)
Held-to-maturity Securities, Fair Value 33,467 34,849
Non-agency | Commercial Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 21,218 24,503
Gross Unrealized Gains 156 37
Gross Unrealized Losses (533) (449)
Held-to-maturity Securities, Fair Value 20,841 24,091
Non-agency | Residential Mortgage-Backed Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 21,415 41,298
Gross Unrealized Gains 15 122
Gross Unrealized Losses (181) (342)
Held-to-maturity Securities, Fair Value $ 21,249 $ 41,078