Earnings Per Share - Summary of Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Basic:
Net income (loss) allocable to common stockholders	$ 11,716	$ 11,456	$ 25,784	$ 23,779
Weighted average common shares outstanding	15,248,654	15,467,857	15,332,357	15,654,466
Weighted average vested restricted stock units	49	521	4,849	8,049
Weighted average shares	15,248,703	15,468,378	15,337,206	15,662,515
Basic earnings (loss) per common share	$ 0.77	$ 0.74	$ 1.68	$ 1.52
Diluted:
Net income (loss) allocable to common stockholders	$ 11,716	$ 11,456	$ 25,784	$ 23,779
Weighted average common shares outstanding for:
Basic earnings per common share	15,248,703	15,468,378	15,337,206	15,662,515
Dilutive effects of the assumed vesting of restricted stock units	70,943	55,231	80,324	83,613
Average shares and dilutive potential common shares	15,377,980	15,554,255	15,473,386	15,789,061
Diluted earnings (loss) per common share	$ 0.76	$ 0.74	$ 1.67	$ 1.51
ESPP [Member]
Weighted average common shares outstanding for:
Dilutive effects of the assumed exercise	1,185	2,167	1,204	3,197
Stock Options [Member]
Weighted average common shares outstanding for:
Dilutive effects of the assumed exercise	57,149	28,479	54,652	39,736