Investment in Rental Property and Lease Arrangements - Summary of Amounts Reported as Lease Revenues Net on the Condensed Consolidated Statements of Income and Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Contractual rental amounts billed for operating leases	$ 87,505	$ 75,011	$ 171,901	$ 148,256
Adjustment to recognize contractual operating lease billings on a straight-line basis	5,090	4,724	10,111	9,533
Net write-offs of accrued rental income	0	0	(1,326)	(442)
Variable rental amounts earned	291	114	477	205
Earned income from direct financing leases	721	728	1,444	1,458
Interest income from sales-type leases	15	15	29	29
Operating expenses billed to tenants	4,263	4,196	8,998	8,584
Other income from real estate transactions	134	28	176	33
Adjustment to revenue recognized for uncollectible rental amounts billed, net	(6)	(57)	44	(199)
Total Lease revenues, net	$ 98,013	$ 84,759	$ 191,854	$ 167,457