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Summary Of Significant Accounting Policies (Schedule Of Restricted Deposits And Mortgage Escrows) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Cash and Cash Equivalents [Abstract]    
Restricted cash $ 1,952 $ 77,739
Mortgage escrows 1,122 2,259
Total 3,074 $ 79,998
Qualified escrow for like-kind exchange, payments $ 77,400