SEGMENT REPORTING - Key Operating Results of Business Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Interest income	$ 137,000	$ 79,144
Interest expense	78,245	4,650
Net interest income	58,755	74,494
Provision for credit losses	417	(792)
Noninterest income	11,698	15,427
Noninterest expense	59,340	47,618
Income (loss) before taxes on income	10,696	43,095
Taxes on income	2,200	12,259
Net income (loss)	8,496	30,836
Operating Segments | Banking
Segment Reporting Information [Line Items]
Interest income	137,000	79,144
Interest expense	76,449	3,413
Net interest income	60,551	75,731
Provision for credit losses	417	(792)
Noninterest income	4,801	7,531
Noninterest expense	51,645	40,101
Income (loss) before taxes on income	13,290	43,953
Taxes on income	2,947	12,715
Net income (loss)	10,343	31,238
Operating Segments | Wealth Management
Segment Reporting Information [Line Items]
Noninterest income	7,291	8,345
Noninterest expense	6,065	6,644
Income (loss) before taxes on income	1,226	1,701
Taxes on income	364	493
Net income (loss)	862	1,208
Other.
Segment Reporting Information [Line Items]
Interest expense	1,796	1,237
Net interest income	(1,796)	(1,237)
Noninterest income	(394)	(449)
Noninterest expense	1,630	873
Income (loss) before taxes on income	(3,820)	(2,559)
Taxes on income	(1,111)	(949)
Net income (loss)	$ (2,709)	$ (1,610)