Schedule III - Real Estate and Accumulated Depreciation and Amortization - Schedule of Changes in Real Estate Assets and Accumulated Depreciation (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Investment in real estate:
Balance at beginning of year	$ 1,514,750	$ 1,410,051	$ 1,246,588
Acquisitions and capital expenditures	221,737	128,349	182,110
Impairments	(5,328)	(3,852)	(5,409)
Sales and condemnations	(9,153)	(12,992)	(12,595)
Lease expirations/settlements	(602)	(6,806)	(643)
Balance at end of year	1,721,404	1,514,750	1,410,051
Accumulated depreciation and amortization:
Balance at beginning of year	233,865	210,615	187,061
Depreciation and amortization	37,875	33,700	30,126
Impairments	(85)	(307)	(1,382)
Sales and condemnations	(2,260)	(4,161)	(4,256)
Lease expirations/settlements	(476)	(5,982)	(934)
Balance at end of year	$ 268,919	$ 233,865	$ 210,615