BUSINESS COMBINATIONS - Schedule of Pre-tax Costs to Consummate the Merger (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Business Combination [Line Items]
Pre-tax costs to consummate the merger	$ 7,533	$ 3,272
M&M
Business Combination [Line Items]
Pre-tax costs to consummate the merger	0	147
CrossFirst
Business Combination [Line Items]
Pre-tax costs to consummate the merger	$ 7,533	$ 3,125