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Loans - Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	$ 11,800,338	$ 11,220,355
Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	11,801,093	11,220,818
Commercial and Industrial Portfolio Segment [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	5,236,473	4,720,428
Commercial Real Estate Investor Owned Financing Receivable [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,986,906	2,607,755
Commercial Real Estate Owner Occupied Financing Receivable [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,460,761	2,359,956
Construction and land development | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	689,357	892,563
Residential real estate | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	367,127	358,923
Consumer | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	60,469	281,193
Commercial Real Estate | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	40,311	21,657
Commercial Real Estate | Commercial and Industrial Portfolio Segment [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Real Estate | Commercial Real Estate Investor Owned Financing Receivable [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	35,701	14,136
Commercial Real Estate | Commercial Real Estate Owner Occupied Financing Receivable [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	4,610	7,521
Commercial Real Estate | Residential real estate | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0
Residential | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	8,574	482
Residential | Commercial and Industrial Portfolio Segment [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	19	0
Residential | Commercial Real Estate Investor Owned Financing Receivable [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Residential | Commercial Real Estate Owner Occupied Financing Receivable [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	456	482
Residential | Residential real estate | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	8,099
Blanket Lien | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	3,391	4,765
Blanket Lien | Commercial and Industrial Portfolio Segment [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	3,391	4,279
Blanket Lien | Commercial Real Estate Investor Owned Financing Receivable [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Blanket Lien | Commercial Real Estate Owner Occupied Financing Receivable [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	486
Blanket Lien | Residential real estate | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0
Other Collateral | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	15,644	3,495
Other Collateral | Commercial and Industrial Portfolio Segment [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	15,644	3,495
Other Collateral | Commercial Real Estate Investor Owned Financing Receivable [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Other Collateral | Commercial Real Estate Owner Occupied Financing Receivable [Member] | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	$ 0
Other Collateral | Residential real estate | Non-Covered Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	$ 0

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- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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