SECURITIES (Schedule of Carrying Value, Gross Unrealized Gains and Losses and Estimated Fair Value of Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	$ 756,872	$ 628,000
Gross Unrealized Gains	24,828	65,982
Gross Unrealized Losses	(21,523)	(208)
Held-to-maturity Securities, Fair Value	760,177	693,774
U.S. government and agency securities
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	2,483	2,604
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(74)	(29)
Held-to-maturity Securities, Fair Value	2,409	2,575
Obligations of states and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	684,294	620,873
Gross Unrealized Gains	24,828	65,982
Gross Unrealized Losses	(17,616)	(121)
Held-to-maturity Securities, Fair Value	691,506	686,734
Commercial
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	31,221	4,523
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,697)	(58)
Held-to-maturity Securities, Fair Value	29,524	4,465
Residential
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	38,874
Gross Unrealized Gains	0
Gross Unrealized Losses	(2,136)
Held-to-maturity Securities, Fair Value	36,738
Agency | Commercial
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	31,221	4,523
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,697)	(58)
Held-to-maturity Securities, Fair Value	29,524	$ 4,465
Agency | Residential
Schedule of Held-to-maturity Securities [Line Items]
Total HTM Securities	38,874
Gross Unrealized Gains	0
Gross Unrealized Losses	(2,136)
Held-to-maturity Securities, Fair Value	$ 36,738