Fair Value - Undesignated Derivative Instruments (Detail) - Mortgage Banking - Level 2 - Fair Value, Recurring - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Other Assets \| Rate Lock Commitments
Derivatives, Fair Value [Line Items]
Gross assets	$ 42,215	$ 32,246
Gross liabilities	55,972	20,946
Net rate lock commitments and forward sales contracts	(13,757)	11,300
Accrued Liabilities \| Forward Sales Contracts
Derivatives, Fair Value [Line Items]
Gross assets	23,255	4,843
Gross liabilities	266	20,903
Net rate lock commitments and forward sales contracts	$ 22,989	$ (16,060)

Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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- Definition

Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as an asset.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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