Quarterly report pursuant to Section 13 or 15(d)

Real Estate Transactions (Summary Of Income From Properties Sold) (Details)

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Real Estate Transactions (Summary Of Income From Properties Sold) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Total revenues   $ 6,405   $ 33,610
Operating and other expenses   (2,472)   (13,454)
Depreciation and amortization   (1,769)   (8,196)
Income from properties sold   2,164   11,842
Properties Sold, Year To Date [Member]
        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Total revenues 2,763 13,672 28,824 41,965
Operating and other expenses (1,957) (7,368) (17,248) (20,681)
Depreciation and amortization (502) (3,600) (6,371) (10,945)
Interest income 2   4  
Income from properties sold $ 306 $ 2,704 $ 5,209 $ 10,339