Mortgage Loans Payable and Unsecured Credit Facility (Effect of Derivative Financial Instruments on Consolidated Statements of Operations and Consolidated Statements of Equity) (Details) - USD ($) |
3 Months Ended | |
---|---|---|
Mar. 31, 2021 |
Mar. 31, 2020 |
|
Designation/Cash Flow [Member] | Interest Rate Swap [Member] | ||
Derivative Instruments Gain Loss [Line Items] | ||
(Loss) gain recognized in other comprehensive (loss) income (effective portion) | $ 2,394,000 | $ (15,363,000) |
Continuing Operations [Member] | ||
Derivative Instruments Gain Loss [Line Items] | ||
Gain (loss) recognized in other comprehensive (loss) income reclassified into earnings (effective portion) | $ (1,803,000) | $ (349,000) |