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Fair Value - Summary of Assets Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Disclosure of Other Real Estate Owned Measured at Fair Value on a Nonrecurring Basis Table [Line Items]    
Loans held for sale $ 121,943 $ 152,931
OREO 157
Fair Value, Nonrecurring [Member]    
Disclosure of Other Real Estate Owned Measured at Fair Value on a Nonrecurring Basis Table [Line Items]    
Impaired loans, net 8,344 2,187
Loans held for sale 121,943 152,931
OREO 157  
Fair Value, Nonrecurring [Member] | Level 2 [Member]    
Disclosure of Other Real Estate Owned Measured at Fair Value on a Nonrecurring Basis Table [Line Items]    
Loans held for sale 121,943 152,931
Fair Value, Nonrecurring [Member] | Level 3 [Member]    
Disclosure of Other Real Estate Owned Measured at Fair Value on a Nonrecurring Basis Table [Line Items]    
Impaired loans, net 8,344 $ 2,187
OREO $ 157