SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($) segment	Dec. 31, 2022 USD ($)	Oct. 01, 2024 USD ($)
Property, Plant and Equipment [Line Items]
Number of reporting units | segment			2
Goodwill impairment loss		$ 54,391	$ 0	$ 0
Community Banking
Property, Plant and Equipment [Line Items]
Merger implied deal value					$ 1,574,400
Merger deal book value					$ 1,628,800
Goodwill impairment loss	$ 54,400	$ 54,391
Furniture and Fixtures | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years	3 years
Furniture and Fixtures | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years	10 years
Computer Equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years	3 years
Computer Equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years	5 years
Building and Building Improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years	10 years
Building and Building Improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	40 years	40 years