Loans and Allowance for Credit Losses - Summary of Loan Portfolio Individually and Collectively Evaluated for Impairment (Detail) $ in Thousands	Dec. 31, 2022 USD ($)
Loans and Leases Receivable Disclosure [Line Items]
Attributable to specific reserve	$ 30,740

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Name:	us-gaap_LoansAndLeasesReceivableAllowance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant