Deferred Charges, Goodwill And Other Assets, Net (Schedule Of Deferred Charges, Goodwill And Other Assets) (Details) - USD ($) $ in Thousands |
9 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2016 |
Dec. 31, 2015 |
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| Deferred Charges, Goodwill And Other Assets [Line Items] | |||||||||||
| Deferred leasing costs | $ 230,718 | $ 239,690 | |||||||||
| Deferred financing costs - revolving credit facility | [1] | 5,359 | 5,394 | ||||||||
| Deferred charges, gross | 236,077 | 245,084 | |||||||||
| Accumulated amortization | (107,982) | (118,014) | |||||||||
| Deferred charges, net | 128,095 | 127,070 | |||||||||
| Notes receivable | [2] | 13,313 | 13,496 | ||||||||
| In-place lease values, related intangibles and other assets, net | 77,656 | 10,931 | |||||||||
| Goodwill | [3] | 2,945 | 2,945 | ||||||||
| Prepaid expenses and other assets, net | [4] | 81,645 | 49,408 | ||||||||
| Total deferred charges, goodwill and other assets, net | 303,654 | $ 203,850 | |||||||||
| Acquisition-related Costs [Member] | |||||||||||
| Deferred Charges, Goodwill And Other Assets [Line Items] | |||||||||||
| Net sales proceeds held by qualified intermediary | 39,000 | ||||||||||
| Mortgage Receivable [Member] | |||||||||||
| Deferred Charges, Goodwill And Other Assets [Line Items] | |||||||||||
| Notes receivable | $ 10,400 | ||||||||||
| Spread over LIBOR | 6.00% | ||||||||||
| LIBOR | Libor+6 | ||||||||||
| Mortgage loan, maturity date | Aug. 01, 2017 | ||||||||||
| Interest-Free Notes Receivable [Member] | |||||||||||
| Deferred Charges, Goodwill And Other Assets [Line Items] | |||||||||||
| Notes receivable | $ 2,900 | ||||||||||
| Mortgage loan, maturity date | Apr. 01, 2023 | ||||||||||
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