Basis of Presentation and Summary of Significant Accounting Policies (Real Estate Facilities) (Narrative) (Details)	12 Months Ended
	Dec. 31, 2021
Summary Of Significant Accounting Policies [Line Items]
Percentage of interest in real estate sold at fair value	100.00%
Minimum
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of buildings and improvements (in years)	5 years
Maximum
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of buildings and improvements (in years)	25 years