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