v3.26.1
Loans and Allowance for Credit Losses - Summary of Amortized Cost of Nonaccrual Loans with No Related Allowance (Detail) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable Nonaccrual Status [Line Items]    
Nonaccrual Loans $ 127,526 $ 144,666
Amortized Cost of Nonaccrual Loans with no related Allowance 84,178 76,789
Commercial and Industrial Portfolio [Member]    
Financing Receivable Nonaccrual Status [Line Items]    
Nonaccrual Loans 33,917 26,633
Amortized Cost of Nonaccrual Loans with no related Allowance 14,228 10,870
Commercial Real Estate Portfolio [Member]    
Financing Receivable Nonaccrual Status [Line Items]    
Nonaccrual Loans 61,827 86,838
Amortized Cost of Nonaccrual Loans with no related Allowance 39,178 35,973
Consumer Real Estate Portfolio [Member]    
Financing Receivable Nonaccrual Status [Line Items]    
Nonaccrual Loans 30,561 29,910
Amortized Cost of Nonaccrual Loans with no related Allowance 29,551 28,661
Consumer Portfolio [Member]    
Financing Receivable Nonaccrual Status [Line Items]    
Nonaccrual Loans 177 777
Amortized Cost of Nonaccrual Loans with no related Allowance 177 777
Credit Cards Portfolio [Member]    
Financing Receivable Nonaccrual Status [Line Items]    
Nonaccrual Loans 1,044 508
Amortized Cost of Nonaccrual Loans with no related Allowance $ 1,044 $ 508