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Loans - Summary of Aging of Recorded Investment in Past Due Portfolio Loans by Portfolio Class and Category (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | $ 11,800,338 | $ 11,220,355
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss, Total | 11,660,316 | 11,082,405
Non-Covered Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 11,801,093 | 11,220,818
Loans, before unearned loan fees | 11,801,093 | 11,220,818
Unearned loan fees, net | (755) | (463)
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss, Total | 11,800,338 | 11,220,355
Non-Covered Loans | Financial Asset, 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, before unearned loan fees | 28,118 | 16,835
Non-Covered Loans | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, before unearned loan fees | 87,608 | 51,039
Non-Covered Loans | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, before unearned loan fees | 115,726 | 67,874
Non-Covered Loans | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans, before unearned loan fees | 11,685,367 | 11,152,944
Non-Covered Loans | Commercial and Industrial Portfolio Segment [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 5,236,473 | 4,720,428
Non-Covered Loans | Commercial and Industrial Portfolio Segment [Member] | Financial Asset, 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 6,822 | 1,948
Non-Covered Loans | Commercial and Industrial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 25,327 | 12,228
Non-Covered Loans | Commercial and Industrial Portfolio Segment [Member] | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 32,149 | 14,176
Non-Covered Loans | Commercial and Industrial Portfolio Segment [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 5,204,324 | 4,706,252
Non-Covered Loans | Commercial Real Estate Investor Owned Financing Receivable [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 2,986,906 | 2,607,755
Non-Covered Loans | Commercial Real Estate Investor Owned Financing Receivable [Member] | Financial Asset, 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 3,627 | 1,377
Non-Covered Loans | Commercial Real Estate Investor Owned Financing Receivable [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 38,063 | 14,333
Non-Covered Loans | Commercial Real Estate Investor Owned Financing Receivable [Member] | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 41,690 | 15,710
Non-Covered Loans | Commercial Real Estate Investor Owned Financing Receivable [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 2,945,216 | 2,592,045
Non-Covered Loans | CRE - owner occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 2,460,761 | 2,359,956
Non-Covered Loans | CRE - owner occupied | Financial Asset, 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 5,274 | 10,542
Non-Covered Loans | CRE - owner occupied | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 21,110 | 18,591
Non-Covered Loans | CRE - owner occupied | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 26,384 | 29,133
Non-Covered Loans | CRE - owner occupied | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 2,434,377 | 2,330,823
Non-Covered Loans | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 689,357 | 892,563
Non-Covered Loans | Construction and land development | Financial Asset, 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 4,881 | 101
Non-Covered Loans | Construction and land development | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 583 | 5,620
Non-Covered Loans | Construction and land development | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 5,464 | 5,721
Non-Covered Loans | Construction and land development | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 683,893 | 886,842
Non-Covered Loans | Residential real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 367,127 | 358,923
Non-Covered Loans | Residential real estate | Financial Asset, 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 7,457 | 2,833
Non-Covered Loans | Residential real estate | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 2,516 | 258
Non-Covered Loans | Residential real estate | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 9,973 | 3,091
Non-Covered Loans | Residential real estate | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 357,154 | 355,832
Non-Covered Loans | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 60,469 | 281,193
Non-Covered Loans | Consumer | Financial Asset, 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 57 | 34
Non-Covered Loans | Consumer | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 9 | 9
Non-Covered Loans | Consumer | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 66 | 43
Non-Covered Loans | Consumer | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | $ 60,403 | $ 281,150

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