BUSINESS COMBINATIONS- Schedule of Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]
Revenue (net interest income plus noninterest income)	$ 758,049	$ 750,667
Net income	$ 182,837	$ 170,894
Diluted earnings per common share (in dollars per share)	$ 1.91	$ 1.87