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ACCUMULATED OTHER COMPREHENSIVE LOSS (Accumulated Comprehensive Income, Net of Income Tax) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Unrealized gain on cash flow hedges $ (131) $ 619  
Accumulated other comprehensive loss, net of income taxes (78,340)   $ (93,409)
AOCI Attributable to Parent      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Accumulated other comprehensive loss, net of income taxes (78,340)   (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 (92,112)   (110,036)
Income tax effect of unrealized loss on securities available-for-sale 13,600   16,373
Net unrealized loss on securities available-for-sale (78,512)   (93,663)
Net unrealized gain (loss) on cash flow hedges      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Unrealized gain on cash flow hedges 275   406
Income tax effect of unrealized gain on cash flow hedges (103)   (152)
Net unrealized gain on cash flow hedges $ 172   $ 254