SECURITIES (Reconciliation of amortized cost of held to maturity securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Schedule of Held-to-maturity Securities [Line Items]
Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss	$ 1,434,956	$ 1,569,107
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	90	559
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(143,245)	(152,058)
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest	0	0
Fair Value	1,291,801	1,417,608
US Government Agencies Debt Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss	0	29,521
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	0	(1,113)
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest	0	0
Fair Value	0	28,408
US Treasury Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss	100,791	100,712
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(7,769)	(9,177)
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest	0	0
Fair Value	93,022	91,535
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss	788,470	829,431
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	90	175
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(62,198)	(65,878)
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest	0	0
Fair Value	726,362	763,728
Agency collateralized mortgage obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss	422,827	477,517
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(65,143)	(69,606)
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest	0	0
Fair Value	357,684	407,911
Single issuer trust preferred securities issued by banks [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss	0	1,500
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	0	(127)
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest	0	0
Fair Value	0	1,373
Small Business Administration Pooled Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss	122,868	130,426
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	384
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(8,135)	(6,157)
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest	0	0
Fair Value	$ 114,733	$ 124,653