SECURITIES (Schedule of Carrying Value, Gross Unrealized Gains and Losses and Estimated Fair Value of Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	$ 849,610	$ 847,732
Gross Unrealized Gains	2,315	2,218
Gross Unrealized Losses	(44,128)	(48,063)
Held-to-maturity Securities, Fair Value	807,798	801,887
U.S. government and agency securities
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	681	687
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(55)	(56)
Held-to-maturity Securities, Fair Value	626	631
Obligations of states and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	701,600	705,990
Gross Unrealized Gains	2,315	2,218
Gross Unrealized Losses	(30,794)	(35,957)
Held-to-maturity Securities, Fair Value	673,121	672,251
Corporate and other bonds
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	4,855	5,159
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(130)	(10)
Held-to-maturity Securities, Fair Value	4,725	5,149
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	142,474	135,896
Commercial
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	54,019	42,761
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(6,138)	(4,999)
Held-to-maturity Securities, Fair Value	47,881	37,762
Residential
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	88,455	93,135
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(7,011)	(7,041)
Held-to-maturity Securities, Fair Value	81,444	86,094
Agency | Commercial
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	27,649	29,025
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(5,568)	(4,873)
Held-to-maturity Securities, Fair Value	22,081	24,152
Agency | Residential
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	41,833	42,699
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(6,151)	(6,427)
Held-to-maturity Securities, Fair Value	35,682	36,272
Non-agency | Commercial
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	26,370	13,736
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(570)	(126)
Held-to-maturity Securities, Fair Value	25,800	13,610
Non-agency | Residential
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	46,622	50,436
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(860)	(614)
Held-to-maturity Securities, Fair Value	$ 45,762	$ 49,822