Loans and Allowance for Credit Losses - Summary of Gross Charge Offs (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Financing Receivable, Past Due [Line Items]
2024	$ 0	$ 0
2023	5,287	4,512
2022	8,498	3,698
2021	4,660	1,814
2020	1,576	1,685
Prior	2,978	6,388
Total	22,999	18,097
Recreation [Member]
Financing Receivable, Past Due [Line Items]
2024	0	0
2023	3,763	3,608
2022	6,818	3,070
2021	3,497	1,671
2020	1,289	1,554
Prior	2,734	2,687
Total	18,101	12,590
Home Improvement [Member]
Financing Receivable, Past Due [Line Items]
2024	0	0
2023	1,524	904
2022	1,680	628
2021	1,163	143
2020	287	131
Prior	244	108
Total	4,898	1,914
Commercial Loan [Member]
Financing Receivable, Past Due [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Total	0	0
Taxi Medallion [Member]
Financing Receivable, Past Due [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	3,593
Total	$ 0	$ 3,593

Financing receivable excluding accrued interest allowance for credit loss write off1.

No definition available.

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- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated more than five years before current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

+ Details

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- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated four years before current fiscal year. Excludes net investment in lease.

+ References

+ Details

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- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated three years before current fiscal year. Excludes net investment in lease.

+ References

+ Details

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- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated in current fiscal year. Excludes net investment in lease.

+ References

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- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated two years before current fiscal year. Excludes net investment in lease.

+ References

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- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated in fiscal year before current fiscal year. Excludes net investment in lease.

+ References

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-14

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 80
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-80

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