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Summary Of Significant Accounting Policies (Schedule Of Restricted Deposits And Mortgage Escrows) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Accounting Policies [Abstract]    
Restricted cash $ 106,262 $ 1,952
Mortgage escrows 1,013 1,122
Total 107,275 $ 3,074
Qualified escrow for like-kind exchange, proceeds $ 105,200