Quarterly report [Sections 13 or 15(d)]

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

v3.25.3
Loans - Allowance for Credit Losses by Portfolio Segment (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]        
Beginning balance     $ 70,147  
Ending balance $ 69,781   69,781  
Non-PCI Loans and Leases        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Beginning balance 66,756 $ 67,729 70,147 $ 69,462
Charge-offs (2,625) (3,800) (18,192) (8,262)
Recoveries 3,107 2,924 5,363 3,999
Credit loss expense (recovery) 2,543 2,310 12,463 3,964
Ending balance 69,781 69,163 69,781 69,163
Real Estate        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Beginning balance     45,099  
Ending balance 51,473   51,473  
Real Estate | Non-PCI Loans and Leases        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Beginning balance 48,021 42,152 45,099 45,499
Charge-offs (119) (1,133) (8,904) (1,226)
Recoveries 52 729 670 840
Credit loss expense (recovery) 3,519 1,946 14,608 (1,419)
Ending balance 51,473 43,694 51,473 43,694
Commercial and Industrial        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Beginning balance     10,006  
Ending balance 7,302   7,302  
Commercial and Industrial | Non-PCI Loans and Leases        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Beginning balance 6,935 10,563 10,006 10,257
Charge-offs (124) (190) (1,157) (438)
Recoveries 2,229 1,679 2,463 1,903
Credit loss expense (recovery) (1,738) (2,269) (4,010) (1,939)
Ending balance 7,302 9,783 7,302 9,783
Equipment Financing Agreements        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Beginning balance     15,042  
Ending balance 11,006   11,006  
Equipment Financing Agreements | Non-PCI Loans and Leases        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Beginning balance 11,800 15,014 15,042 13,706
Charge-offs (2,382) (2,477) (8,131) (6,598)
Recoveries 826 516 2,230 1,256
Credit loss expense (recovery) 762 2,633 1,865 7,322
Ending balance $ 11,006 $ 15,686 $ 11,006 $ 15,686