Loans and Leases - Accruing and Nonaccrual Modified Loans to Borrowers Experiencing Financial Difficulty with Payment Defaults (Detail) - Maturity Date Extension [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) Investment
Accrual Modified Loans
Financing Receivable, Modified Loans [Line Items]
Number of loans | Investment	0
Recorded investment | $	$ 0
Nonaccrual Modified Loans
Financing Receivable, Modified Loans [Line Items]
Number of loans | Investment	1
Recorded investment | $	$ 1,741
Nonaccrual Modified Loans | Real Estate-Commercial [Member]
Financing Receivable, Modified Loans [Line Items]
Number of loans | Investment	1
Recorded investment | $	$ 1,741