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Borrowings - Schedule of Principal on FHLB Borrowings Maturities (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Balance	$ 280,000	$ 210,000
Daily Rate Credit [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Balance	$ 130,000	$ 60,000
Originated Date	May 08, 2023	May 08, 2023
Stated Interest Rate	5.58%	5.57%
Maturity Date	May 08, 2024	May 08, 2024
Fixed Rate Credit One [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Balance	$ 50,000	$ 50,000
Originated Date	Mar. 15, 2023	Mar. 15, 2023
Stated Interest Rate	4.07%	4.07%
Maturity Date	Mar. 15, 2027	Mar. 15, 2027
Fixed Rate Credit Two [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Balance	$ 50,000	$ 50,000
Originated Date	May 02, 2023	May 02, 2023
Stated Interest Rate	3.87%	3.87%
Maturity Date	May 03, 2027	May 03, 2027
Fixed Rate Credit Three [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Balance	$ 50,000	$ 50,000
Originated Date	May 04, 2023	May 04, 2023
Stated Interest Rate	3.52%	3.52%
Maturity Date	May 04, 2028	May 04, 2028

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Federal home loan bank advances branch of fhlb bank maturity date.

+ References

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Federal home loan bank advances branch of FHLB bank originated date.

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- Definition

Discloses the single interest rate [if] applicable to the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 470
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480876/942-470-45-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480848/942-470-50-3

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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.

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- Definition

Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 470
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480876/942-470-45-1

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-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

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-Topic 942
-SubTopic 470
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480848/942-470-50-2

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