STOCK-BASED COMPENSATION - Schedule of Stock Appreciation Rights Activity (Details) - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
Weighted- Average Remaining Contractual Term
Weighted- Average Remaining Contractual Term, Outstanding (in years)	1 year 7 months 17 days	1 year 10 months 13 days
Weighted- Average Remaining Contractual Term, Exercisable (in years)	1 year 7 months 17 days
SSARs
Shares
Outstanding, beginning balance (in shares)	0
Replacement of CrossFirst SSARs (in shares)	424,390
Exercised (in shares)	(9,535)
Outstanding, ending balance (in shares)	414,855	0
Exercisable (in shares)	366,177
Weighted- Average Exercise Price
Weighted- Average Exercise Price, Outstanding, beginning balance (in dollars per share)	$ 0
Weighted- Average Exercise Price, Replacement of CrossFirst SSARs (in dollars per share)	15.78
Weighted- Average Exercise Price, Exercised (in dollars per shares)	11.24
Weighted- Average Exercise Price, Outstanding, ending balance (in dollars per share)	15.89	$ 0
Weighted- Average Exercise Price, Exercisable (in dollars per share)	$ 15.19
Weighted- Average Remaining Contractual Term
Weighted- Average Remaining Contractual Term, Outstanding (in years)	5 years 4 months 28 days
Weighted- Average Remaining Contractual Term, Exercisable (in years)	5 years 3 months 25 days