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MERGERS AND ACQUISITIONS - Schedule of Pre-tax Acquisition Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Business Combination [Line Items]
Pre-tax acquisition expenses	$ 16,600	$ 2,212	$ 88,198	$ 2,497
M&M
Business Combination [Line Items]
Pre-tax acquisition expenses	0	2,065	108	2,350
CrossFirst
Business Combination [Line Items]
Pre-tax acquisition expenses	16,600	$ 147	$ 88,090	$ 147
Adjustment to the initial provision for unfunded commitments	$ 4,000

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