Organization (Details) $ in Thousands	2 Months Ended	3 Months Ended	8 Months Ended	9 Months Ended
	Aug. 31, 2019 USD ($)	Sep. 30, 2018 USD ($)	Aug. 31, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 property
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Transaction costs | $	$ 1,263	$ 78	$ 6,223	$ 8,620
Unencumbered portfolio properties | property					11