Mortgage Loans Payable and Unsecured Credit Facility (Schedule of Debt and Finance Lease Obligations Related to Continuing Operations) (Parenthetical) (Details) - Revolving Credit Facility [Member] |
6 Months Ended |
---|---|
Jun. 30, 2022
Term
| |
Debt Instrument [Line Items] | |
Line of credit facility extension allowed period | 1 year |
Line of credit facility extension allowed term | 2 |