Loans - Schedule of Collateral Dependent Loans (Details) - Non-Covered Loans - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	$ 127,878	$ 42,687
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	29,712	15,821
Commercial - investor owned
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	78,444	14,186
Commercial - owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	10,654	10,910
Construction and land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	386	1,503
Residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	$ 8,648	$ 258