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
	Mar. 31, 2023		Mar. 31, 2022
Leases [Abstract]
Contractual rental amounts billed for operating leases	$ 98,102		$ 84,396
Adjustment to recognize contractual operating lease billings on a straight-line basis	7,370		5,021
Net write-offs of accrued rental income	(105)		(1,326)
Variable rental amounts earned	341		186
Earned income from direct financing leases	691		723
Interest income from sales-type leases	14		14
Operating expenses billed to tenants	5,075		4,735
Other income from real estate transactions	7,392	[1]	42
Adjustment to revenue recognized for uncollectible rental amounts billed, net	112		50
Total Lease revenues, net	$ 118,992		$ 93,841

[1] Other income from real estate transactions during the three months ended March 31, 2023, includes $7.5 million of lease termination fee income recognized in connection with the simultaneous lease termination and sale of an underlying office property for an additional $32.0 million in proceeds.