v3.26.1
Loans, Allowance for Credit Losses, and Asset Quality Information - Schedule of Major Categories of Total Loans Outstanding (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Loans and Leases Receivable Disclosure [Line Items]    
Allowance for credit loss, fee, and loan in process $ 8,989,553 $ 8,721,682
Unamortized net deferred loan (fees)/costs (805) 737
Total loans $ 8,988,748 $ 8,722,419
Financing Receivable | Loan Category Concentration Risk    
Loans and Leases Receivable Disclosure [Line Items]    
Percentage 100.00% 100.00%
Total SBA loans included in the table above    
Loans and Leases Receivable Disclosure [Line Items]    
Total loans $ 146,906 $ 162,010
Guaranteed portions of SBA loans included in table above    
Loans and Leases Receivable Disclosure [Line Items]    
Total loans 49,431 61,501
Unguaranteed portions of SBA loans included in table above    
Loans and Leases Receivable Disclosure [Line Items]    
Total loans 97,475 100,509
Sold portions of SBA loans with servicing retained - not included in tables above    
Loans and Leases Receivable Disclosure [Line Items]    
Total loans 280,913 284,649
Commercial and industrial    
Loans and Leases Receivable Disclosure [Line Items]    
Allowance for credit loss, fee, and loan in process $ 1,014,295 $ 1,046,438
Commercial and industrial | Financing Receivable | Loan Category Concentration Risk    
Loans and Leases Receivable Disclosure [Line Items]    
Percentage 11.00% 12.00%
Real estate, commercial | Construction, development & other land loans    
Loans and Leases Receivable Disclosure [Line Items]    
Allowance for credit loss, fee, and loan in process $ 847,912 $ 753,199
Real estate, commercial | Construction, development & other land loans | Financing Receivable | Loan Category Concentration Risk    
Loans and Leases Receivable Disclosure [Line Items]    
Percentage 10.00% 9.00%
Real estate, commercial | Commercial real estate - owner occupied    
Loans and Leases Receivable Disclosure [Line Items]    
Allowance for credit loss, fee, and loan in process $ 1,358,100 $ 1,353,912
Real estate, commercial | Commercial real estate - owner occupied | Financing Receivable | Loan Category Concentration Risk    
Loans and Leases Receivable Disclosure [Line Items]    
Percentage 15.00% 15.00%
Real estate, commercial | Commercial real estate - non owner occupied    
Loans and Leases Receivable Disclosure [Line Items]    
Allowance for credit loss, fee, and loan in process $ 2,974,749 $ 2,843,555
Real estate, commercial | Commercial real estate - non owner occupied | Financing Receivable | Loan Category Concentration Risk    
Loans and Leases Receivable Disclosure [Line Items]    
Percentage 33.00% 33.00%
Real estate, commercial | Multi-family real estate    
Loans and Leases Receivable Disclosure [Line Items]    
Allowance for credit loss, fee, and loan in process $ 619,489 $ 537,015
Real estate, commercial | Multi-family real estate | Financing Receivable | Loan Category Concentration Risk    
Loans and Leases Receivable Disclosure [Line Items]    
Percentage 7.00% 6.00%
Real estate, mortgage | Residential 1-4 family real estate    
Loans and Leases Receivable Disclosure [Line Items]    
Allowance for credit loss, fee, and loan in process $ 1,728,367 $ 1,736,453
Real estate, mortgage | Residential 1-4 family real estate | Financing Receivable | Loan Category Concentration Risk    
Loans and Leases Receivable Disclosure [Line Items]    
Percentage 19.00% 20.00%
Real estate, mortgage | Home equity loans/lines of credit    
Loans and Leases Receivable Disclosure [Line Items]    
Allowance for credit loss, fee, and loan in process $ 377,949 $ 383,652
Real estate, mortgage | Home equity loans/lines of credit | Financing Receivable | Loan Category Concentration Risk    
Loans and Leases Receivable Disclosure [Line Items]    
Percentage 4.00% 4.00%
Consumer loans    
Loans and Leases Receivable Disclosure [Line Items]    
Allowance for credit loss, fee, and loan in process $ 68,692 $ 67,458
Consumer loans | Financing Receivable | Loan Category Concentration Risk    
Loans and Leases Receivable Disclosure [Line Items]    
Percentage 1.00% 1.00%