LOANS, ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025		Dec. 31, 2024		Dec. 31, 2023		Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss, Writeoff	$ (56,804)		$ (10,347)		$ (34,782)
Financing Receivable, Allowance for Credit Loss, Recovery	2,208		1,859		1,335
Contractual cash flows not expected to be collected	9,020
Provision for credit losses	65,469		36,250		23,250
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	189,877	[1]	169,984	[1]	142,222	[1]	$ 152,419
Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss, Writeoff	(8,813)		(6,593)		(24,048)
Financing Receivable, Allowance for Credit Loss, Recovery	135		194		237
Contractual cash flows not expected to be collected	4,016
Provision for credit losses	21,839		1,149		15,524
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	47,976	[1]	30,799	[1]	36,049	[1]	44,336
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss, Writeoff	(43,412)		0		(7,855)
Financing Receivable, Allowance for Credit Loss, Recovery	20		0		0
Contractual cash flows not expected to be collected	2,796
Provision for credit losses	31,794		32,413		5,304
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	84,916	[1]	93,718	[1]	61,305	[1]	63,856
Construction Loans [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss, Writeoff	0		0		0
Financing Receivable, Allowance for Credit Loss, Recovery	0		0		0
Contractual cash flows not expected to be collected	1,739
Provision for credit losses	4,349		483		(3,079)
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	14,254	[1]	8,166	[1]	7,683	[1]	10,762
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss, Writeoff	0		0		0
Financing Receivable, Allowance for Credit Loss, Recovery	0		0		0
Contractual cash flows not expected to be collected	297
Provision for credit losses	3,719		1,601		2,664
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	29,254	[1]	25,238	[1]	23,637	[1]	20,973
Home Equity Line of Credit [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss, Writeoff	(96)		(380)		(47)
Financing Receivable, Allowance for Credit Loss, Recovery	94		343		62
Contractual cash flows not expected to be collected	118
Provision for credit losses	1,253		(1,753)		1,278
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	12,376	[1]	11,007	[1]	12,797	[1]	11,504
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss, Writeoff	(4,483)		(3,374)		(2,832)
Financing Receivable, Allowance for Credit Loss, Recovery	1,959		1,322		1,036
Contractual cash flows not expected to be collected	54
Provision for credit losses	2,515		2,357		1,559
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	$ 1,101	[1]	$ 1,056	[1]	$ 751	[1]	$ 988

[1] Balances of accrued interest receivable excluded from amortized cost and the calculation of allowance for credit losses amounted to $70.3 million, $55.6 million, and $60.2 million at December 31, 2025, 2024, and 2023, respectively.