Real Estate (Key Information for Leases) (Details) - property	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Jun. 30, 2020
Lease classification:
Operating		3,128	3,128
Direct financing		6	6
Weighted average remaining lease term			10 years 10 months 24 days
Percent of tenants with rent deferral agreements		21.00%
Term of rent deferred		2 months 12 days
Percent of deferred rent due		86.00%
Percent of deferred rent due by June 30, 2021		66.00%	66.00%
Percent of deferred rent due by December 31, 2021		94.00%	94.00%
Forecast [Member]
Lease classification:
Percent of deferred rent due	14.00%
Minimum
Lease classification:
Initial lease term			10 years
Maximum
Lease classification:
Initial lease term			20 years