v3.26.1
Loans - Summary of Aging of Recorded Investment in Past Due Portfolio Loans by Portfolio Class and Category (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees $ 11,692,780 $ 11,800,338
Loans, including unearned loan fees 11,550,716 11,660,316
Non-Covered Loans    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 11,693,751 11,801,093
Loans, including unearned loan fees 11,692,780 11,800,338
Unearned loan fees, net (971) (755)
Loans, before unearned loan fees, after allowance 11,693,751 11,801,093
Non-Covered Loans | C&I    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 5,172,817 5,236,473
Loans, including unearned loan fees 5,172,817 5,236,473
Non-Covered Loans | Commercial - investor owned    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 2,960,830 2,986,906
Loans, including unearned loan fees 2,960,830 2,986,906
Non-Covered Loans | Commercial - owner occupied    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 2,487,565 2,460,761
Loans, including unearned loan fees 2,487,565 2,460,761
Non-Covered Loans | Construction and land development    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 669,921 689,357
Loans, including unearned loan fees 669,921 689,357
Non-Covered Loans | Residential    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 345,568 367,127
Loans, including unearned loan fees 345,568 367,127
Non-Covered Loans | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 57,050 60,469
Loans, including unearned loan fees 57,050 60,469
Total Past Due | Non-Covered Loans    
Financing Receivable, Past Due [Line Items]    
Loans, before unearned loan fees 148,289 115,726
Total Past Due | Non-Covered Loans | C&I    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 27,965 32,149
Total Past Due | Non-Covered Loans | Commercial - investor owned    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 72,434 41,690
Total Past Due | Non-Covered Loans | Commercial - owner occupied    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 40,400 26,384
Total Past Due | Non-Covered Loans | Construction and land development    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 3,383 5,464
Total Past Due | Non-Covered Loans | Residential    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 3,927 9,973
Total Past Due | Non-Covered Loans | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 180 66
30-89 Days Past Due | Non-Covered Loans    
Financing Receivable, Past Due [Line Items]    
Loans, before unearned loan fees 74,149 28,118
30-89 Days Past Due | Non-Covered Loans | C&I    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 8,405 6,822
30-89 Days Past Due | Non-Covered Loans | Commercial - investor owned    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 37,449 3,627
30-89 Days Past Due | Non-Covered Loans | Commercial - owner occupied    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 25,775 5,274
30-89 Days Past Due | Non-Covered Loans | Construction and land development    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 1,415 4,881
30-89 Days Past Due | Non-Covered Loans | Residential    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 951 7,457
30-89 Days Past Due | Non-Covered Loans | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 154 57
90 or More Days Past Due | Non-Covered Loans    
Financing Receivable, Past Due [Line Items]    
Loans, before unearned loan fees 74,140 87,608
90 or More Days Past Due | Non-Covered Loans | C&I    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 19,560 25,327
90 or More Days Past Due | Non-Covered Loans | Commercial - investor owned    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 34,985 38,063
90 or More Days Past Due | Non-Covered Loans | Commercial - owner occupied    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 14,625 21,110
90 or More Days Past Due | Non-Covered Loans | Construction and land development    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 1,968 583
90 or More Days Past Due | Non-Covered Loans | Residential    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 2,976 2,516
90 or More Days Past Due | Non-Covered Loans | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 26 9
Current | Non-Covered Loans    
Financing Receivable, Past Due [Line Items]    
Loans, before unearned loan fees 11,545,462 11,685,367
Current | Non-Covered Loans | C&I    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 5,144,852 5,204,324
Current | Non-Covered Loans | Commercial - investor owned    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 2,888,396 2,945,216
Current | Non-Covered Loans | Commercial - owner occupied    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 2,447,165 2,434,377
Current | Non-Covered Loans | Construction and land development    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 666,538 683,893
Current | Non-Covered Loans | Residential    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees 341,641 357,154
Current | Non-Covered Loans | Consumer    
Financing Receivable, Past Due [Line Items]    
Loans, including unearned loan fees $ 56,870 $ 60,403