Borrowings and Subordinated Notes - Schedule of Subordinated Notes (Detail) - Subordinated Notes $ in Thousands	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Principal	$ 35,000
Unamortized Note Issuance Costs	$ (529)

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant