Securities - Amortized Cost and Fair Value of Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Amortized Cost, Due in one year or less	$ 5,990
Amortized Cost, Due from one to five years	44,482
Amortized Cost, Due from five to ten years	70,413
Amortized Cost, Due after ten years	295,714
Amortized Cost, Mortgage-backed securities in government sponsored entities	265,752
Amortized Cost, Total securities available for sale	682,351	$ 541,297
Fair Value, Due in one year or less	5,796
Fair Value, Due from one to five years	41,304
Fair Value, Due from five to ten years	64,687
Fair Value, Due after ten years	266,490
Fair Value, Mortgage-backed securities in government sponsored entities	237,125
Fair Value, Total securities available for sale	$ 615,402	$ 559,874

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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