Investment Securities - Summary of Allowance for Credit Losses on held to Maturity Securities (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Beginning balance	$ 55	$ 0
Adoption of new accounting standard	0	110
Provision for credit losses	20	0
Net charge-offs	0	0
Ending balance	$ 75	$ 110

Debt securities held to maturity allowance for credit loss adoption of new accounting standard.

No definition available.

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- Definition

Debt securities held to maturity allowance for credit loss provision for credit losses.

+ References

No definition available.

+ Details

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- Definition

Amount, excluding accrued interest, of allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity), classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

+ Details

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- Definition

Amount of writeoff of investment in debt security, measured at amortized cost (held-to-maturity), charged against allowance for credit loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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- References

No definition available.

+ Details

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