Real Estate (Key Information for Leases) (Details) - property	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Sep. 30, 2020
Lease classification:
Operating		3,109	3,109
Direct financing		6	6
Weighted average remaining lease term			10 years 8 months 12 days
Percentage of rent deferred, originally due for current year end		6.00%	6.00%
Term of rent deferred		2 months 21 days
Percent of deferred rent due		77.00%
Percent of deferred rent due by June 30, 2021		66.00%	66.00%
Percent of deferred rent due by December 31, 2021		89.00%	89.00%
Forecast [Member]
Lease classification:
Percent of deferred rent due	23.00%
Minimum
Lease classification:
Initial lease term			10 years
Maximum
Lease classification:
Initial lease term			20 years