Summary of Significant Accounting Policies - Summary of the Calculation of Basic and Diluted EPS (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Accounting Policies [Abstract]
Net income available to common stockholders	$ 7,636	$ 15,940	$ 30,777	$ 34,638
Weighted average common shares outstanding applicable to basic EPS	23,154,775	24,634,845	24,020,058	24,583,573
Effect of dilutive stock options	48,552	98,906	74,097	82,522
Effect of restricted stock grants	307,318	256,475	238,621	279,612
Adjusted weighted average common shares outstanding applicable to diluted EPS	23,510,645	24,990,226	24,332,776	24,945,707
Basic income per share	$ 0.33	$ 0.65	$ 1.28	$ 1.41
Diluted income per share	$ 0.32	$ 0.64	$ 1.26	$ 1.39