Loans - Recorded Investment in Nonperforming Loans by Category (Details) - Non-Covered Loans - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Troubled Debt Restructuring [Line Items]
Nonaccrual	$ 48,746	$ 9,766
Restructured, accruing		73
Loans over 90 days past due and still accruing interest	186	142
Total nonperforming loans	48,932	9,981
Nonaccrual loans with no allowance	30,227	2,239
Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	25,180	3,415
Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	3,564	2,050
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Nonaccrual	11,913	4,373
Restructured, accruing		0
Loans over 90 days past due and still accruing interest	145	70
Total nonperforming loans	12,058	4,443
Nonaccrual loans with no allowance	3,087	1,047
Commercial and industrial \| Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	875	0
Commercial and industrial \| Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	1,864	0
Commercial - investor owned
Financing Receivable, Troubled Debt Restructuring [Line Items]
Nonaccrual	20,427	3,023
Restructured, accruing		0
Loans over 90 days past due and still accruing interest	0	0
Total nonperforming loans	20,427	3,023
Nonaccrual loans with no allowance	16,254	0
Commercial - investor owned \| Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	19,490	2,238
Commercial - investor owned \| Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	0	785
CRE - owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Nonaccrual	14,705	1,177
Restructured, accruing		0
Loans over 90 days past due and still accruing interest	0	0
Total nonperforming loans	14,705	1,177
Nonaccrual loans with no allowance	9,186	0
CRE - owner occupied \| Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	4,815	1,177
CRE - owner occupied \| Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	0	0
Construction and land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Nonaccrual	741	1,192
Restructured, accruing		0
Loans over 90 days past due and still accruing interest	0	0
Total nonperforming loans	741	1,192
Nonaccrual loans with no allowance	741	1,192
Construction and land development \| Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans		0
Construction and land development \| Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	741	1,192
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Nonaccrual	959	0
Restructured, accruing		73
Loans over 90 days past due and still accruing interest	0	0
Total nonperforming loans	959	73
Nonaccrual loans with no allowance	959	0
Residential real estate \| Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	0	0
Residential real estate \| Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total nonperforming loans	959	73
Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Nonaccrual	1	1
Restructured, accruing		0
Loans over 90 days past due and still accruing interest	41	72
Total nonperforming loans	42	73
Nonaccrual loans with no allowance	$ 0	$ 0

Amortized cost excluding accrued interest, of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease.

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