Derivative Financial Instruments - Summary of Recorded Net Gains (Losses) on Derivatives and Related Hedged Items in Fair Value Hedging Relationships (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Net Fair Value Hedge Gain/(Loss)	$ 1	$ 8
Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(Loss) on Derivatives	146	(367)
Gain/(Loss) on Hedged Items	(145)	375
Net Fair Value Hedge Gain/(Loss)	1	8
Effect of Derivatives on Net Interest Income	161	149
Fair Value Hedging [Member] | Commercial Real Estate [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(Loss) on Derivatives	146	(367)
Gain/(Loss) on Hedged Items	(145)	375
Net Fair Value Hedge Gain/(Loss)	1	8
Effect of Derivatives on Net Interest Income	$ 161	$ 149