BORROWED FUNDS - Summary of Borrowed Funds by Type (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Federal funds purchased
Debt Instrument [Line Items]
Balance at End of Period	$ 0	$ 0
Weighted Average Interest Rate	0.00%	0.00%
Maximum Outstanding at Month End During the Period	$ 130,000	$ 0
Average Amount Outstanding During the Year	$ 33,195	$ 11,603
Weighted Average Interest Rate During the Year	5.04%	3.82%
FHLB advances
Debt Instrument [Line Items]
Balance at End of Period	$ 0	$ 350,000
Weighted Average Interest Rate	0.00%	4.46%
Maximum Outstanding at Month End During the Period	$ 800,000	$ 350,000
Average Amount Outstanding During the Year	$ 103,268	$ 12,841
Weighted Average Interest Rate During the Year	5.18%	4.19%
Trust preferred borrowings
Debt Instrument [Line Items]
Balance at End of Period	$ 90,638	$ 90,442
Weighted Average Interest Rate	7.51%	6.63%
Maximum Outstanding at Month End During the Period	$ 90,638	$ 90,442
Average Amount Outstanding During the Year	$ 90,534	$ 90,337
Weighted Average Interest Rate During the Year	7.44%	3.85%
Senior and subordinated debt
Debt Instrument [Line Items]
Balance at End of Period	$ 218,400	$ 248,169
Weighted Average Interest Rate	4.34%	4.51%
Maximum Outstanding at Month End During the Period	$ 248,189	$ 248,566
Average Amount Outstanding During the Year	$ 221,975	$ 248,389
Weighted Average Interest Rate During the Year	4.42%	3.32%
Other borrowed funds
Debt Instrument [Line Items]
Balance at End of Period	$ 586,038	$ 38,283
Weighted Average Interest Rate	0.28%	0.10%
Maximum Outstanding at Month End During the Period	$ 739,346	$ 38,283
Average Amount Outstanding During the Year	$ 409,002	$ 35,473
Weighted Average Interest Rate During the Year	4.41%	0.10%