Summary of Significant Accounting Policies - COVID-19 (Details) - COVID 19	3 Months Ended
	Aug. 31, 2020 ft² tenant
Unusual or Infrequent Item, or Both [Line Items]
Rent collected (as a percent)	99.90%
Area of land | ft²	59,000
Number of tenants in discussion | tenant	2
Monthly rent, long term renewal agreement (as a percent)	0.50%
Long term renewal agreement term	5 years