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Fair Value Measurements (Schedule Of Assets Measured At A Fair Value On Non-recurring Basis) (Details) - USD ($)
Sep. 30, 2015
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Real estate held for sale $ 13,084,000 $ 16,508,000
Fair Value, Inputs, Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Real estate held for sale
Fair Value, Inputs, Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Real estate held for sale   $ 3,424,000
Fair Value, Inputs, Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Real estate held for sale $ 13,084,000 $ 13,084,000