Real Estate Acquisitions - Narrative (Details) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2022 USD ($) property	Jun. 30, 2022 USD ($) property	Mar. 31, 2022 USD ($) property	Sep. 30, 2022 USD ($) property
Real Estate [Line Items]
Number of unfavorable operating lease properties (in properties) | property	2			2
Total purchase price | $	$ 21,337		$ 27,575	$ 105,656
Number of properties (in properties) | property	66		50	266
Acquisition closing costs | $	$ 500	$ 1,700	$ 600
Class A common stock
Real Estate [Line Items]
Number of acquired postal properties (in properties) | property			50
Total purchase price | $	$ 21,300	$ 56,744	$ 27,600
Number of properties (in properties) | property	66	150
Acquisition closing costs | $	$ 4,700	$ 2,000	$ 1,800