INCOME TAXES - Schedule of Net Deferred Tax Asset (Details 2) - USD ($) $ in Thousands		Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets
Allowance for credit losses		$ 51,939	$ 46,372
Accrued expenses not deducted for tax purposes		16,517	17,720
Basis difference on loans		42,703	1,612
Deferred Tax Assets, Basis Difference on Acquired Securities		15,852	0
Derivatives fair value adjustment		2,164	5,304
Employee and director equity compensation		5,268	1,930
Foreign Tax Credit Carryforward		89	89
Net operating loss carry-forward		1,002	627
Net unrealized loss on securities available for sale		11,607	23,795
Operating lease liability		20,707	15,471
State purchased credits		15,638	21,448
Other		541	621
Gross deferred tax assets		184,027	134,989
Valuation allowance	[1]	(485)	(531)
Total deferred tax assets net of valuation allowance		183,542	134,458
Deferred tax liabilities
Core deposit and other intangibles		34,622	1,453
Deferred loan fees, net		11,226	8,080
Fixed assets		9,741	14,747
Goodwill		11,690	11,476
Prepaid pension		3,137	7,260
Right of use asset		20,107	14,921
Other		1,592	1,868
Gross deferred tax liabilities		92,115	59,805
Total net deferred tax asset		$ 91,427	$ 74,653

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