Quarterly report [Sections 13 or 15(d)]

Loans - Allowance for Credit Losses by Portfolio Segment (Detail)

v3.26.1
Loans - Allowance for Credit Losses by Portfolio Segment (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Financing Receivable, Allowance for Credit Loss [Line Items]    
Beginning balance $ 69,903  
Ending balance 70,468  
Non-PCI Loans and Leases    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Beginning balance 69,903 $ 70,147
Charge-offs (3,171) (3,189)
Recoveries 573 1,243
Credit loss expense (recovery) 3,163 2,396
Ending balance 70,468 70,597
Real Estate    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Beginning balance 51,670  
Ending balance 50,108  
Real Estate | Non-PCI Loans and Leases    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Beginning balance 51,670 45,099
Charge-offs (132) (169)
Recoveries 45 424
Credit loss expense (recovery) (1,475) 5,948
Ending balance 50,108 51,302
Commercial and Industrial    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Beginning balance 7,792  
Ending balance 8,811  
Commercial and Industrial | Non-PCI Loans and Leases    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Beginning balance 7,792 10,006
Charge-offs (127) (222)
Recoveries 39 36
Credit loss expense (recovery) 1,107 (3,578)
Ending balance 8,811 6,242
Equipment Financing Agreements    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Beginning balance 10,441  
Ending balance 11,549  
Equipment Financing Agreements | Non-PCI Loans and Leases    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Beginning balance 10,441 15,042
Charge-offs (2,912) (2,798)
Recoveries 489 783
Credit loss expense (recovery) 3,531 26
Ending balance $ 11,549 $ 13,053