Summary of Significant Accounting Policies (Details) ft² in Millions, $ in Millions	3 Months Ended	4 Months Ended
	Jun. 30, 2020 USD ($) ft² state property	Jul. 31, 2020	Jul. 17, 2020 USD ($)
Business Overview:
Gross investment amount, total	$ 4,200.0
Number of real estate properties | property	210
Number of states that the company owns real estate in, whole units | state	24
Square footage of owned real estate properties | ft²	15.5
Approximate square feet for which Nationwide property management services provided by company | ft²	12.0
Second quarter 2020 tenant billings deferred under rent deferral agreements (percent)	2.00%
Deferred rent reserve recognized in the period	$ 0.7
Subsequent event
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Aggregate second quarter 2020 tenant billings collected (percent)		97.00%
Deferred rent receivable			$ 2.9