Loans and Leases Held for Investment and Credit Quality - Financial Effect of Loan Modifications (Details)	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2023
Small Business Banking
Financing Receivable Modifications [Line Items]
Weighted Average Interest Rate Reduction	0.00%	1.45%
Weighted Average Term Extension (in Months)	161 months	161 months
Specialty Lending
Financing Receivable Modifications [Line Items]
Weighted Average Interest Rate Reduction	0.00%	0.00%
Weighted Average Term Extension (in Months)	72 months	72 months
Energy & Infrastructure
Financing Receivable Modifications [Line Items]
Weighted Average Interest Rate Reduction		0.00%
Weighted Average Term Extension (in Months)		12 months

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of decrease in weighted average contractual interest rate of financing receivable modified for debtor experiencing financial difficulty.

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Period of increase in weighted average maturity of financing receivable modified for debtor experiencing financial difficulty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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