SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Estimated Useful Lives of Assets by Class (Details)	6 Months Ended
	Dec. 31, 2020 USD ($)
Property, Plant and Equipment [Abstract]
Impairment charges of real estate assets	$ 0
Buildings [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives of assets	30 years
Buildings [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives of assets	40 years
Building and Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives of assets	5 years
Building and Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives of assets	15 years
Land Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives of assets	5 years
Land Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives of assets	15 years
Furniture, Fixtures And Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives of assets	3 years
Furniture, Fixtures And Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives of assets	7 years
In-Place Leases [Member]
Property, Plant and Equipment [Abstract]
Remaining non-cancelable term of leases for amortization	5 years
In-Place Leases [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives of assets	5 years
In-Place Leases [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Estimated useful lives of assets	10 years