Allowance for Credit Losses - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Loans and Leases Receivable Disclosure [Line Items]
Interest income recognized on nonaccrual loans	$ 79	$ 35	$ 530	$ 49
Amortized cost	3,952		3,952
Accrued Interest Receivable and Other Assets [Member]
Loans and Leases Receivable Disclosure [Line Items]
Accrued interest receivable on loans	$ 8,577		$ 8,577