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Fair Value Measurements (Quantitative Information Regarding Level 3 Assets Measured At Fair Value On Non-recurring Basis) (Details) - Operating retail real estate [Member] - Nonrecurring Basis [Member] - Fair Value, Inputs, Level 3 [Member] - Discounted Cash Flow Valuation Technique [Member]
12 Months Ended
Dec. 31, 2014
USD ($)
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Real estate held for sale/conveyance $ 13,084,000
Capitalization rates 8.30%
Discount rates 9.60%