Derivative Financial Instruments - Summary of Recorded Net Gains or Losses on Derivatives and Related Hedged Items in Fair Value Hedging Relationships (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Net Fair Value Hedge Gain/(Loss)	$ 18	$ (17)	$ 150
Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(Loss) on Derivatives	(103)	(508)	2,747
Gain/(Loss) on Hedged Items	121	525	(2,597)
Net Fair Value Hedge Gain/(Loss)	18	17	150
Effect of Derivatives on Net Interest Income	612	717	(246)
Fair Value Hedging [Member] | Commercial Real Estate [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(Loss) on Derivatives	(103)	(508)	2,747
Gain/(Loss) on Hedged Items	121	525	(2,597)
Net Fair Value Hedge Gain/(Loss)	18	17	150
Effect of Derivatives on Net Interest Income	$ 612	$ 717	$ (246)