INCOME TAXES - Schedule of Components of Deferred Income Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets
Allowance for credit losses	$ 90,357	$ 88,494
Deferred compensation	14,421	13,822
Deferred loan fees	435	0
Purchase accounting adjustments	3,112	3,442
Other real estate owned	106	18
Net operating loss tax carryforward	11,319	12,779
Tax credit carryforwards	117	139
Unrealized loss on securities available for sale	8,906	11,218
Capitalized costs, accrued expenses and other	7,550	8,297
Lease liability	13,319	15,081
Deferred tax assets	149,642	153,290
Deferred tax liabilities
Premises and equipment	10,025	12,167
Mortgage servicing rights	22,135	34,989
Subordinated debentures	5,603	6,149
Lease financing	7,239	9,753
Goodwill and intangible assets	19,998	22,918
Origination costs	11,100	9,984
Right of use lease asset	11,243	12,854
Deferred loan fees	0	318
Deferred tax liabilities	87,343	109,132
Net deferred tax asset	$ 62,299	$ 44,158