LEASES - Narrative (Details) - USD ($) $ in Thousands	Jul. 01, 2024	Dec. 31, 2024	Dec. 31, 2023
Lessee, Lease, Description [Line Items]
Weighted-average remaining lease term (in years)		15 years 7 months 6 days	15 years 1 month 6 days
Codorus Valley Bancorp, Inc
Lessee, Lease, Description [Line Items]
Operating lease assets acquired	$ 5,100
Operating lease liabilities	5,100
Finance lease asset acquired	392
Finance lease liability acquired	392
Fair value adjustments of operating lease assets	(1,100)
Fair value adjustments of finance lease assets	$ (133)
Weighted-average remaining lease term (in years)		14 years 2 months 12 days
Minimum
Lessee, Lease, Description [Line Items]
Operating lease term		3 years
Maximum
Lessee, Lease, Description [Line Items]
Operating lease term		28 years