Quarterly report [Sections 13 or 15(d)]

SEGMENT REPORTING AND REVENUE (Disaggregation of Noninterest Income by Reportable Operating Segment) (Details)

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SEGMENT REPORTING AND REVENUE (Disaggregation of Noninterest Income by Reportable Operating Segment) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Disaggregation of Reportable Operating Segment        
Service charges on deposit accounts $ 12,886 $ 12,838 $ 37,261 $ 34,743
Other service charges, commissions and fees 2,266 2,325 6,490 6,332
Fiduciary and asset management fees 20,452 18,595 62,090 43,014
Mortgage banking income 1,528 2,811 6,211 6,605
Other income 17,660 15,182 87,771 71,742
Total noninterest income 54,792 51,751 199,823 162,436
Operating segments | Wholesale Banking        
Disaggregation of Reportable Operating Segment        
Service charges on deposit accounts 4,625 4,537 13,721 11,818
Other service charges, commissions and fees 662 813 1,746 1,717
Fiduciary and asset management fees 17,967 16,548 54,868 37,076
Mortgage banking income 0 0 0 0
Other income 6,232 7,102 20,961 13,839
Total noninterest income 29,486 29,000 91,296 64,450
Operating segments | Consumer Banking        
Disaggregation of Reportable Operating Segment        
Service charges on deposit accounts 8,261 8,301 23,540 22,925
Other service charges, commissions and fees 1,604 1,437 4,744 4,426
Fiduciary and asset management fees 2,485 2,047 7,222 5,938
Mortgage banking income 1,528 2,811 6,211 6,605
Other income 4,986 5,349 14,592 14,346
Total noninterest income 18,864 19,945 56,309 54,240
Corporate Other        
Disaggregation of Reportable Operating Segment        
Service charges on deposit accounts 0 0 0 0
Other service charges, commissions and fees 0 75 0 189
Fiduciary and asset management fees 0 0 0 0
Mortgage banking income 0 0 0 0
Other income 6,442 2,731 52,218 43,557
Total noninterest income $ 6,442 $ 2,806 $ 52,218 $ 43,746