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ACCUMULATED OTHER COMPREHENSIVE LOSS (Accumulated Comprehensive Income, Net of Income Tax) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gain on cash flow hedges	$ (120)	$ 245	$ (406)	$ 1,214
Accumulated other comprehensive loss, net of income taxes	(127,677)		(127,677)		$ (93,409)
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, net of income taxes	(127,677)		(127,677)		(93,409)
Net unrealized gain (loss) on securities available-for-sale
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized loss on securities available-for-sale			(150,480)		(110,036)
Income tax effect of unrealized loss on securities available-for-sale			22,803		16,373
Net unrealized loss on securities available-for-sale	$ (127,677)		(127,677)		(93,663)
Net unrealized gain (loss) on cash flow hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gain on cash flow hedges			0		406
Income tax effect of unrealized gain on cash flow hedges			0		(152)
Net unrealized gain on cash flow hedges			$ 0		$ 254