Quarterly Financial Data - Summary of Quarterly Results of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Quarterly Financial Information Disclosure [Abstract]
Revenues from rental properties	$ 180,488	$ 163,889	$ 153,886
Net earnings	$ 60,151	$ 90,043	$ 62,860
Diluted earnings per common share:
Net earnings	$ 1.15	$ 1.88	$ 1.37