v3.25.2
Allowance for Credit Losses and Credit Quality of Loans, Allowance for Credit Losses by Portfolio Segments (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Activity in allowance for credit losses by portfolio segment [Roll Forward]          
Balance, beginning of period $ 117,000 $ 115,300 $ 116,000 $ 114,400 $ 114,400
Allowance for credit loss on PCD acquired loans 7,726   7,726    
Charge-offs (4,431) (5,627) (12,586) (12,307) (25,728)
Recoveries 2,070 1,928 3,671 3,929  
Provision 17,835 8,899 25,389 14,478  
Balance, end of period 140,200 120,500 140,200 120,500 116,000
Commercial Loans [Member]          
Activity in allowance for credit losses by portfolio segment [Roll Forward]          
Balance, beginning of period 48,730 44,472 45,453 45,903 45,903
Allowance for credit loss on PCD acquired loans 7,355   7,355    
Charge-offs (533) (299) (2,755) (1,284)  
Recoveries 409 292 516 490  
Provision 10,060 2,243 15,452 1,599  
Balance, end of period 66,021 46,708 66,021 46,708 45,453
Consumer Loans [Member]          
Activity in allowance for credit losses by portfolio segment [Roll Forward]          
Balance, beginning of period 41,696 47,419 43,987 46,427 46,427
Allowance for credit loss on PCD acquired loans 0   0    
Charge-offs (3,837) (5,328) (9,713) (10,909)  
Recoveries 1,566 1,559 2,972 3,210  
Provision 1,444 4,268 3,623 9,190  
Balance, end of period 40,869 47,918 40,869 47,918 43,987
Residential [Member]          
Activity in allowance for credit losses by portfolio segment [Roll Forward]          
Balance, beginning of period 26,574 23,409 26,560 22,070 22,070
Allowance for credit loss on PCD acquired loans 371   371    
Charge-offs (61) 0 (118) (114) (211)
Recoveries 95 77 183 229  
Provision 6,331 2,388 6,314 3,689  
Balance, end of period $ 33,310 $ 25,874 $ 33,310 $ 25,874 $ 26,560