Loans and Allowance for Loan Losses - Summary of TDRs (Detail) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022 USD ($) TDR	Jun. 30, 2021 USD ($) TDR	Jun. 30, 2022 USD ($) TDR	Jun. 30, 2021 USD ($) TDR
Financing Receivable Recorded Investment Past Due [Line Items]
Pre- Modification Investment		$ 302
Recreation [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Number of Loans \| TDR	12	21	22	39
Pre- Modification Investment	$ 147		$ 276	$ 474
Post- Modification Investment	$ 147	$ 302	$ 276	$ 468
Medallion [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Number of Loans \| TDR	0	2	2	10
Pre- Modification Investment	$ 0	$ 256	$ 252	$ 2,994
Post- Modification Investment	$ 0	$ 256	$ 252	$ 2,994

Number of financing receivables that have been modified by troubled debt restructurings.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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Amount, after troubled debt restructuring, of modified financing receivable.

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Amount, before troubled debt restructuring, of financing receivable to be modified.

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