Investment Securities and Other Investments - Summary of Investments Classified by Contractual Maturity Date (Detail) $ in Thousands	Jun. 30, 2023 USD ($)
Schedule of Investments [Abstract]
Debt Securities Available for Sale, Amortized Cost, Due in one year or less	$ 502
Debt Securities Available for Sale, Amortized Cost, Due after one year through five years	34,949
Debt Securities Available for Sale, Amortized Cost, Due after five years through ten years	138,894
Debt Securities Available for Sale, Amortized Cost, Due after ten years	226,390
Total	400,735
Debt Securities Available for Sale, Fair Value, Due in one year or less	502
Debt Securities Available for Sale, Fair Value, Due after one year through five years	31,921
Debt Securities Available for Sale, Fair Value, Due after five years through ten years	119,581
Debt Securities Available for Sale, Fair Value, Due after ten years	188,613
Total	$ 340,617

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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