Quarterly report [Sections 13 or 15(d)]

LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Schedule of Loans Acquired) (Details)

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LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Schedule of Loans Acquired) (Details) - Sandy Spring - USD ($)
$ in Thousands
3 Months Ended
Apr. 01, 2025
Mar. 31, 2026
Financing Receivable, Allowance for Credit Loss [Line Items]    
Initial ACL recognized charge offs before acquisition $ 101,200 $ 39,500
PCD Loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Book value of acquired loans at acquisition 1,642,597  
Initial ACL at acquisition (28,265)  
Non-credit discount at acquisition (119,513)  
Purchase Price 1,494,819  
Non-PCD Loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value 7,077,565  
Gross contractual amounts receivable 7,676,836  
Estimate of contractual cash flows not expected to be collected $ 130,113