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RESTRUCTURING CHARGE - Schedule of summarize the restructuring activities by reportable segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Employee termination	$ 228		$ 888	$ 1,260
Impairment of intangibles				4,174
Facility closure and consolidation			61
Total restructuring charge	228	$ 8,016	949	8,016
Facility Closing
Segment Reporting Information [Line Items]
Facility closure and consolidation				2,582
Wealth Management Segment
Segment Reporting Information [Line Items]
Employee termination				354
Impairment of intangibles				2,012
Total restructuring charge				4,107
Wealth Management Segment \| Facility Closing
Segment Reporting Information [Line Items]
Facility closure and consolidation				1,741
Communications Segment
Segment Reporting Information [Line Items]
Employee termination				906
Impairment of intangibles				2,162
Total restructuring charge				3,909
Communications Segment \| Facility Closing
Segment Reporting Information [Line Items]
Facility closure and consolidation				$ 841
Wealth Management Segment
Segment Reporting Information [Line Items]
Employee termination	0		0
Facility closure and consolidation			61
Total restructuring charge	0		61
Communications Segment
Segment Reporting Information [Line Items]
Employee termination	145		402
Facility closure and consolidation			0
Total restructuring charge	145		402
Consumer Segment
Segment Reporting Information [Line Items]
Employee termination	83		486
Facility closure and consolidation			0
Total restructuring charge	$ 83		$ 486