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Fair Value - Undesignated Derivative Instruments (Detail) - Mortgage Banking - Level 2 - Fair Value, Recurring - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Other Assets | Rate Lock Commitments |  |
Derivatives, Fair Value [Line Items] |  |
Gross assets | $ 36,695 | $ 15,949
Gross liabilities | 88,697 | 1,790
Net rate lock commitments and forward sales contracts | (52,002) | 14,159
Accrued Liabilities | Forward Sales Contracts |  |
Derivatives, Fair Value [Line Items] |  |
Gross assets | 41,536 | 708
Gross liabilities | 3,148 | 926
Net rate lock commitments and forward sales contracts | $ 38,388 | $ (218)

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