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Fair Value - Undesignated Derivative Instruments (Detail) - Mortgage Banking - Level 2 - Fair Value, Recurring - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Other Assets | Rate Lock Commitments    
Derivatives, Fair Value [Line Items]    
Gross assets $ 48,491 $ 15,949
Gross liabilities 38,064 1,790
Net rate lock commitments and forward sales contracts 10,427 14,159
Accrued Liabilities | Forward Sales Contracts    
Derivatives, Fair Value [Line Items]    
Gross assets 14,323 708
Gross liabilities 12,166 926
Net rate lock commitments and forward sales contracts $ 2,157 $ (218)