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Intangible Lease Asset/Liability (Narrative) (Details) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Intangible Lease Asset/Liability [Abstract]    
Unamortized intangible lease liabilities $ 26,868,000 $ 30,502,000
Unamortized intangible lease assets 200,000 400,000
Accumulated amortization $ 53,100,000