Loans and Leases Held for Investment and Credit Quality - Aging Analysis Of Loans That Were Modified (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Financing Receivable Modifications [Line Items]
Total	$ 34,921	$ 26,240	$ 78,268	$ 45,876
Total Past Due
Financing Receivable Modifications [Line Items]
Total			17,323	2,243
Current
Financing Receivable Modifications [Line Items]
Total			118,215	62,944
30-89 Days Past Due
Financing Receivable Modifications [Line Items]
Total			15,426	0
90 Days or More Past Due
Financing Receivable Modifications [Line Items]
Total			1,897	2,243
Small Business Banking
Financing Receivable Modifications [Line Items]
Total	30,560	20,713	46,010	40,349
Small Business Banking \| Total Past Due
Financing Receivable Modifications [Line Items]
Total			14,372	2,243
Small Business Banking \| Current
Financing Receivable Modifications [Line Items]
Total			83,011	40,120
Small Business Banking \| 30-89 Days Past Due
Financing Receivable Modifications [Line Items]
Total			12,475	0
Small Business Banking \| 90 Days or More Past Due
Financing Receivable Modifications [Line Items]
Total			1,897	2,243
Commercial Banking
Financing Receivable Modifications [Line Items]
Total	$ 4,361	$ 5,527	32,258	5,527
Commercial Banking \| Total Past Due
Financing Receivable Modifications [Line Items]
Total			2,951	0
Commercial Banking \| Current
Financing Receivable Modifications [Line Items]
Total			35,204	22,824
Commercial Banking \| 30-89 Days Past Due
Financing Receivable Modifications [Line Items]
Total			2,951	0
Commercial Banking \| 90 Days or More Past Due
Financing Receivable Modifications [Line Items]
Total			$ 0	$ 0