Fair Value Measurement - Schedule of Assets Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Fair Value Inputs Asset Quantitative Information [Line Items]
Other real estate owned and repossessed assets	$ 1,497	$ 1,486
Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans	18,273	878
Other real estate owned and repossessed assets	1,497	1,486
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans	$ 18,273	$ 878
Collateral dependent loans, Appraisal adjustments	0.00%	0.00%
Collateral dependent loans, Liquidation expenses	(8.00%)	(8.00%)
Other real estate owned and repossessed assets	$ 1,497	$ 1,486
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans, Appraisal adjustments	0.00%	0.00%
Collateral dependent loans, Liquidation expenses	(8.00%)	(8.00%)