Investment Activity - Summary of Acquisition Date Fair Values (Details) $ in Thousands	Mar. 31, 2020 USD ($)
Business Acquisition [Line Items]
Land	$ 2,527
Building and improvements	51,512
Right-of-use asset	444
Prepaid expenses	(771)
Receivables	316
Asset Acquisition, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	60,063
Acquisition credits	1,027
Aggregate purchase price	61,090
In-place lease intangibles
Business Acquisition [Line Items]
Asset Acquisition, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	6,586
Above-market leases
Business Acquisition [Line Items]
Asset Acquisition, Recognized Identifiable Assets Acquired And Liabilities Assumed, Finite-Lived Intangible Assets, Excluding Assets Held For Sale	118
Below market in-place lease intangibles
Business Acquisition [Line Items]
Below market in-place lease intangibles	$ (669)