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Investment Securities and Other Investments - Summary of Investments Classified by Contractual Maturity Date (Detail) $ in Thousands	Mar. 31, 2024 USD ($)
Schedule of Investments [Abstract]
Debt Securities Available for Sale, Amortized Cost, Due in one year or less	$ 2,983
Debt Securities Available for Sale, Amortized Cost, Due after one year through five years	46,624
Debt Securities Available for Sale, Amortized Cost, Due after five years through ten years	122,346
Debt Securities Available for Sale, Amortized Cost, Due after ten years	203,944
Total	375,897
Debt Securities Available for Sale, Fair Value, Due in one year or less	2,901
Debt Securities Available for Sale, Fair Value, Due after one year through five years	42,215
Debt Securities Available for Sale, Fair Value, Due after five years through ten years	104,433
Debt Securities Available for Sale, Fair Value, Due after ten years	164,845
Total	$ 314,394

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