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Discontinued Operations - Components of Condensed Balance Sheet Related to Assets Held for Sale (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Discontinued Operations And Disposal Groups [Abstract]    
Land $ 3,597  
Buildings 12,590  
Fixtures and tenant improvements 263  
Carrying amount of real estate assets held for sale 16,450  
Less: Accumulated depreciation (3,780)  
Total assets held for sale $ 12,670 $ 0