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Fair Value Measurements (Quantitative Information Regarding Level 3 Assets Measured At Fair Value On Non-recurring Basis) (Details) (USD $)
9 Months Ended 9 Months Ended 9 Months Ended
Sep. 30, 2014
property
Dec. 31, 2013
Sep. 30, 2014
Fair Value, Inputs, Level 3 [Member]
Dec. 31, 2013
Fair Value, Inputs, Level 3 [Member]
Sep. 30, 2014
Fair Value, Inputs, Level 3 [Member]
Sales Comparison Approach Valuation Technique [Member]
Minimum [Member]
Sep. 30, 2014
Fair Value, Inputs, Level 3 [Member]
Sales Comparison Approach Valuation Technique [Member]
Maximum [Member]
Sep. 30, 2014
Fair Value, Inputs, Level 3 [Member]
Sales Comparison Approach Valuation Technique [Member]
Weighted Average [Member]
Sep. 30, 2014
Operating retail real estate [Member]
Fair Value, Inputs, Level 3 [Member]
property
Sep. 30, 2014
Operating retail real estate [Member]
Fair Value, Inputs, Level 3 [Member]
Discounted Cash Flow Valuation Technique [Member]
Minimum [Member]
Sep. 30, 2014
Operating retail real estate [Member]
Fair Value, Inputs, Level 3 [Member]
Discounted Cash Flow Valuation Technique [Member]
Maximum [Member]
Sep. 30, 2014
Operating retail real estate [Member]
Fair Value, Inputs, Level 3 [Member]
Discounted Cash Flow Valuation Technique [Member]
Weighted Average [Member]
Sep. 30, 2014
Single Tenant Property [Member]
Fair Value, Inputs, Level 3 [Member]
Sep. 30, 2014
Single Tenant Property [Member]
Fair Value, Inputs, Level 3 [Member]
Direct Capitalization [Member]
Sep. 30, 2014
Land [Member]
Fair Value, Inputs, Level 3 [Member]
item
Fair Value Inputs, Assets, Quantitative Information [Line Items]                            
Real estate held for sale/conveyance   $ 81,854,000 $ 26,047,000 $ 81,854,000       $ 22,854,000       $ 1,492,000   $ 1,701,000
Capitalization rates                 7.30% 8.50% 7.90%   14.00%  
Discount rates                 7.80% 9.00% 8.50%      
Price per acre         23,000 138,000 40,000              
Number of parcels of land                           4
Number of properties 58             2