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Investments in Partially Owned Entities (LNR) (Details) (USD $)
6 Months Ended 1 Months Ended 3 Months Ended 1 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jan. 31, 2013
LNR [Member]
Mar. 31, 2013
LNR [Member]
Jan. 31, 2013
LNR [Member]
Vornado Realty Trust [Member]
Schedule Of Equity Method Investments [Line Items]          
Sales Of Real Estate     $ 1,053,000,000    
Proceeds from the sale of LNR 0 240,474,000     240,474,000
Impairment loss       $ (27,231,000)