Investment Securities - Additional Information (Detail) $ in Thousands	Mar. 31, 2024 USD ($) Securities	Dec. 31, 2023 USD ($)
Marketable Securities [Line Items]
Number of securities less than 12 months \| Securities	30
Number of securities more than 12 months \| Securities	164
Unrealized losses securities more than 12 months	$ 10,810	$ 10,099
Securities pledged as collateral	$ 0	$ 0
Number of investment securities \| Securities	227
Municipal Securities [Member]
Marketable Securities [Line Items]
Number of securities more than 12 months \| Securities	98
Unrealized losses securities more than 12 months	$ 31,200
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 3,300
Mortgage-backed securities [Member]
Marketable Securities [Line Items]
Number of securities more than 12 months \| Securities	62
Unrealized losses securities more than 12 months	$ 30,200
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 6,500
Agency Securities [Member]
Marketable Securities [Line Items]
Number of securities more than 12 months \| Securities	4
Unrealized losses securities more than 12 months	$ 5,200
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 1,100

Debt securities available for sale and held to maturity unrealized loss position number of positions.

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

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- Definition

Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without an allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of securities, mortgage loans, or other financial instruments pledged as collateral for deposits.

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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

No definition available.

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