Loans and Allowance for Loan Losses - Summary of Performance Status of Loan (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Loan premiums	$ 0.5	$ 2.7
Non - Performing [Member] \| Medallion [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan premiums		$ 1.6

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.

No definition available.

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