Mortgage Loans Payable and Credit Facility (Effect of Derivative Financial Instruments On Consolidated Statements of Operations and Consolidated Statements of Equity) (Details) - USD ($) |
3 Months Ended | |
---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
|
Designation/Cash Flow [Member] | Interest Rate Swap [Member] | ||
Derivative Instruments Gain Loss [Line Items] | ||
Net amount of Gain (loss) recognized in other comprehensive (loss) income (effective portion) | $ 5,752,000 | $ 474,000 |
Continuing Operations [Member] | ||
Derivative Instruments Gain Loss [Line Items] | ||
Net amount of (Loss) recognized in other comprehensive (loss)income reclassified into earnings (effective portion) | $ (138,000) | $ (866,000) |