Earnings Per Share - Calculation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share, Basic [Abstract]
Net income	$ 9,961	$ 11,361	$ 42,927	$ 34,824
Basic weighted average common shares	19,164,854	19,198,320	19,145,432	19,267,602
Basic earnings per common share	$ 0.52	$ 0.59	$ 2.24	$ 1.81
Net income	$ 9,961	$ 11,361	$ 42,927	$ 34,824
Weighted average common shares	19,164,854	19,198,320	19,145,432	19,267,602
Restricted stock and RSUs	58,734	71,026	72,174	73,296
Diluted weighted average common shares	19,223,588	19,269,346	19,217,606	19,340,898
Diluted earnings per common share	$ 0.52	$ 0.59	$ 2.23	$ 1.8