Loans and Leases Held for Investment, Net of Allowance For Loan and Lease Losses - Nonaccrual and Past Due Table (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Nonaccrual	$ 24,507	$ 9,985
Nonaccrual with no related ACL	$ 2,688	$ 6,434
Nonaccrual Ratios	0.51%	0.34%
Nonaccuring Loans And Leases, Excluding PPP Loans \| Loans And Leases, Class \| Credit Concentration Risk
Financing Receivable, Past Due [Line Items]
Concentration risk, percentage	0.52%	0.38%
Consumer Portfolio Segment
Financing Receivable, Past Due [Line Items]
Nonaccrual	$ 11,100	$ 6,060
Nonaccrual with no related ACL	$ 337	$ 4,384
Nonaccrual Ratios	0.28%	0.30%
Consumer Portfolio Segment \| Unsecured personal
Financing Receivable, Past Due [Line Items]
Nonaccrual	$ 10,601	$ 1,676
Nonaccrual with no related ACL	0	0
Consumer Portfolio Segment \| Residential mortgages
Financing Receivable, Past Due [Line Items]
Nonaccrual	337	1,373
Nonaccrual with no related ACL	337	1,373
Consumer Portfolio Segment \| Secured consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual	162	3,011
Nonaccrual with no related ACL	0	3,011
Commercial Portfolio Segment
Financing Receivable, Past Due [Line Items]
Nonaccrual	13,407	3,925
Nonaccrual with no related ACL	$ 2,351	$ 2,050
Nonaccrual Ratios	1.71%	0.45%
Commercial Portfolio Segment \| Equipment finance
Financing Receivable, Past Due [Line Items]
Nonaccrual	$ 180	$ 603
Nonaccrual with no related ACL	0	0
Commercial Portfolio Segment \| Commercial real estate
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,013	989
Nonaccrual with no related ACL	1,013	989
Commercial Portfolio Segment \| Commercial and industrial
Financing Receivable, Past Due [Line Items]
Nonaccrual	12,214	2,333
Nonaccrual with no related ACL	$ 1,338	$ 1,061

Percentage of nonaccrual to total financing receivable outstanding.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
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