Loans and Other Finance Receivables - Schedule of Non-Accruing Collateral-Dependent Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	$ 82,073	$ 55,060
Total
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	80,583	53,081
Total \| Commercial mortgage
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	12,235	2,472
Total \| Home equity lines and loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	1,600	2,023
Total \| Residential mortgage
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	8,736	10,385
Total \| Construction and land development
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	26,456	6,650
Total \| Commercial, industrial & other finance receivables
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	6,948	6,770
Total \| Small business loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	24,608	24,781
Real estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	71,605	42,189
Real estate \| Commercial mortgage
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	12,235	2,472
Real estate \| Home equity lines and loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	1,600	2,023
Real estate \| Residential mortgage
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	8,736	10,385
Real estate \| Construction and land development
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	26,456	6,650
Real estate \| Commercial, industrial & other finance receivables
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	1,731	1,372
Real estate \| Small business loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	20,847	19,287
Equipment and other
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	8,978	10,892
Equipment and other \| Commercial mortgage
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	0	0
Equipment and other \| Home equity lines and loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	0	0
Equipment and other \| Residential mortgage
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	0	0
Equipment and other \| Construction and land development
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	0	0
Equipment and other \| Commercial, industrial & other finance receivables
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	5,217	5,398
Equipment and other \| Small business loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	$ 3,761	$ 5,494