v3.25.2
LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Schedule for Allowance for Loan Loss Activity, by Portfolio Segment, Balances for Allowance for Credit Losses, and Loans Based on Impairment Methodology) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Apr. 01, 2025
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Allowance for loan losses:          
Balance, beginning of period $ 193,796 $ 193,796 $ 136,190 $ 178,644 $ 132,182
Loans charged off   (2,579) (3,088) (5,464) (8,982)
Recoveries credited to allowance   1,913 1,348 2,520 2,325
Provision charged to operations   4,641 6,556 22,071 15,481
Balance, end of period   315,574 158,131 315,574 158,131
American National          
Allowance for loan losses:          
Initial ACL at acquisition     (3,896)   (3,896)
Initial Provision - non-PCD loans     13,229   13,229
Sandy Spring          
Allowance for loan losses:          
Initial ACL at acquisition   (28,265)   (28,265)  
Initial Provision - non-PCD loans   89,538   89,538  
Initial ACL recognized charge offs before acquisition   34,500      
Sandy Spring | PCD          
Allowance for loan losses:          
Initial ACL at acquisition (28,265)        
Commercial Portfolio Segment [Member]          
Allowance for loan losses:          
Balance, beginning of period 162,908 162,908 110,528 148,887 105,896
Loans charged off   (1,534) (2,094) (3,382) (7,033)
Recoveries credited to allowance   1,545 1,057 1,775 1,590
Provision charged to operations   8,489 7,826 24,128 16,864
Balance, end of period   257,403 131,139 257,403 131,139
Commercial Portfolio Segment [Member] | American National          
Allowance for loan losses:          
Initial ACL at acquisition     (2,609)   (2,609)
Initial Provision - non-PCD loans     11,213   11,213
Commercial Portfolio Segment [Member] | Sandy Spring          
Allowance for loan losses:          
Initial ACL at acquisition   (21,255)   (21,255)  
Initial Provision - non-PCD loans   64,740   64,740  
Consumer Portfolio Segment [Member]          
Allowance for loan losses:          
Balance, beginning of period $ 30,888 30,888 25,662 29,757 26,286
Loans charged off   (1,045) (994) (2,082) (1,949)
Recoveries credited to allowance   368 291 745 735
Provision charged to operations   (3,848) (1,270) (2,057) (1,383)
Balance, end of period   58,171 26,992 58,171 26,992
Consumer Portfolio Segment [Member] | American National          
Allowance for loan losses:          
Initial ACL at acquisition     (1,287)   (1,287)
Initial Provision - non-PCD loans     $ 2,016   $ 2,016
Consumer Portfolio Segment [Member] | Sandy Spring          
Allowance for loan losses:          
Initial ACL at acquisition   (7,010)   (7,010)  
Initial Provision - non-PCD loans   $ 24,798   $ 24,798