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Derivative Instruments and Hedging Activities - Fair Value of Derivative Financial Instruments (Detail) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Designated as Hedging Instrument | Other assets | Fair Value Hedging    
Derivative Instruments, Gain (Loss) [Line Items]    
Fair value, derivative assets $ 1,777 $ 1,750
Designated as Hedging Instrument | Other assets | Interest rate swaps | Fair Value Hedging    
Derivative Instruments, Gain (Loss) [Line Items]    
Fair value, derivative assets 1,777 1,750
Designated as Hedging Instrument | Other liabilities | Fair Value Hedging    
Derivative Instruments, Gain (Loss) [Line Items]    
Fair value, derivative liabilities 0 0
Designated as Hedging Instrument | Other liabilities | Interest rate swaps | Fair Value Hedging    
Derivative Instruments, Gain (Loss) [Line Items]    
Fair value, derivative liabilities 0 0
Not Designated as Hedging Instrument | Other assets    
Derivative Instruments, Gain (Loss) [Line Items]    
Fair value, derivative assets 42,658 25,545
Not Designated as Hedging Instrument | Other assets | Interest rate swaps    
Derivative Instruments, Gain (Loss) [Line Items]    
Fair value, derivative assets 42,589 25,235
Not Designated as Hedging Instrument | Other assets | Credit contracts    
Derivative Instruments, Gain (Loss) [Line Items]    
Fair value, derivative assets 14 131
Not Designated as Hedging Instrument | Other assets | Residential mortgage loan commitments    
Derivative Instruments, Gain (Loss) [Line Items]    
Fair value, derivative assets 55 179
Not Designated as Hedging Instrument | Other liabilities    
Derivative Instruments, Gain (Loss) [Line Items]    
Fair value, derivative liabilities 42,106 26,544
Not Designated as Hedging Instrument | Other liabilities | Interest rate swaps    
Derivative Instruments, Gain (Loss) [Line Items]    
Fair value, derivative liabilities 42,076 26,343
Not Designated as Hedging Instrument | Other liabilities | Credit contracts    
Derivative Instruments, Gain (Loss) [Line Items]    
Fair value, derivative liabilities 30 201
Not Designated as Hedging Instrument | Other liabilities | Residential mortgage loan commitments    
Derivative Instruments, Gain (Loss) [Line Items]    
Fair value, derivative liabilities $ 0 $ 0