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Derivative Instruments and Hedging Activities - Effect of Derivative Instruments on Comprehensive Income (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income $ 0 $ (26,972) $ (13,092)
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income, Discontinued Cash Flow Hedge $ 0 $ (24,467) $ 0
OCI, Cash Flow Hedge, Reclassification for Discontinuance, Statement of Income or Comprehensive Income [Extensible Enumeration] Loss on cash flow hedge derivative terminations Loss on cash flow hedge derivative terminations Loss on cash flow hedge derivative terminations
Interest rate swaps      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in OCI on Derivatives $ 0 $ 9,117 $ (23,227)
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income $ 0 $ (2,505) $ (13,092)
OCI, Cash Flow Hedge, Reclassification for Discontinuance, Statement of Income or Comprehensive Income [Extensible Enumeration] Interest Interest Interest
Designated as Hedging Instrument      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Income Recognized in Earnings $ 0 $ 0 $ 0
Designated as Hedging Instrument | Interest rate swaps      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Income Recognized in Earnings $ 3,422 $ 5,680 $ 741
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Interest Income (Expense), Net Interest Income (Expense), Net Interest Income (Expense), Net
Designated as Hedging Instrument | AFS debt securities      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Income Recognized in Earnings $ (3,422) $ (5,680) $ (741)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Interest Income (Expense), Net Interest Income (Expense), Net Interest Income (Expense), Net
Not Designated as Hedging Instrument      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Income Recognized in Earnings $ 2,267 $ 3,187 $ (3,830)
Not Designated as Hedging Instrument | Interest rate swaps      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Income Recognized in Earnings $ 2,338 $ 3,159 $ (5,482)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Unrealized gain (loss) on derivatives Unrealized gain (loss) on derivatives Unrealized gain (loss) on derivatives
Not Designated as Hedging Instrument | Credit contracts      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Income Recognized in Earnings $ 53 $ 48 $ 1,531
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Unrealized gain (loss) on derivatives Unrealized gain (loss) on derivatives Unrealized gain (loss) on derivatives
Not Designated as Hedging Instrument | Residential mortgage loan commitments      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Income Recognized in Earnings $ (124) $ (20) $ 121
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Mortgage banking income Mortgage banking income Mortgage banking income