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
Mar. 31, 2024
Dec. 31, 2023
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities $ 828,928 $ 837,378
Gross Unrealized Gains 2,986 6,334
Gross Unrealized Losses (40,569) (35,638)
Held-to-maturity Securities, Fair Value 791,345 808,074
Obligations of states and political subdivisions    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 695,952 699,189
Gross Unrealized Gains 2,851 6,175
Gross Unrealized Losses (27,308) (23,464)
Held-to-maturity Securities, Fair Value 671,495 681,900
Corporate and other bonds    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 4,230 4,349
Gross Unrealized Gains 0 0
Gross Unrealized Losses (182) (100)
Held-to-maturity Securities, Fair Value 4,048 4,249
Mortgage-backed securities    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 128,746 133,840
Commercial    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 50,814 51,980
Gross Unrealized Gains 14 37
Gross Unrealized Losses (6,312) (6,019)
Held-to-maturity Securities, Fair Value 44,516 45,998
Residential    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 77,932 81,860
Gross Unrealized Gains 121 122
Gross Unrealized Losses (6,767) (6,055)
Held-to-maturity Securities, Fair Value 71,286 75,927
Agency | Commercial    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 27,377 27,477
Gross Unrealized Gains 0 0
Gross Unrealized Losses (5,819) (5,570)
Held-to-maturity Securities, Fair Value 21,558 21,907
Agency | Residential    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 39,928 40,562
Gross Unrealized Gains 0 0
Gross Unrealized Losses (6,365) (5,713)
Held-to-maturity Securities, Fair Value 33,563 34,849
Non-agency | Commercial    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 23,437 24,503
Gross Unrealized Gains 14 37
Gross Unrealized Losses (493) (449)
Held-to-maturity Securities, Fair Value 22,958 24,091
Non-agency | Residential    
Schedule of Held-to-maturity Securities [Line Items]    
Total HTM Securities 38,004 41,298
Gross Unrealized Gains 121 122
Gross Unrealized Losses (402) (342)
Held-to-maturity Securities, Fair Value $ 37,723 $ 41,078