Annual report pursuant to Section 13 and 15(d)

Real Estate Dispositions Held for Sale and Impairment Charges - Additional Information (Detail)

v3.3.1.900
Real Estate Dispositions Held for Sale and Impairment Charges - Additional Information (Detail)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 04, 2015
USD ($)
Nov. 06, 2015
USD ($)
Sep. 30, 2015
USD ($)
Mar. 31, 2014
USD ($)
Dec. 31, 2015
USD ($)
Property
Dec. 31, 2014
USD ($)
Schedule Of Real Estate Owned Held For Sale [Line Items]            
Proceeds from sale of real estate         $ 6,683 $ 11,162
Number of real estate properties, held for sale | Property         1,000,000  
Impairment loss     $ 600 $ 14,000 $ 622 $ 14,238
Columbus, Ohio Property [Member]            
Schedule Of Real Estate Owned Held For Sale [Line Items]            
Proceeds from sale of real estate   $ 2,800        
Gain on sale of real estate   $ 400        
Birmingham, Alabama Industrial Building [Member]            
Schedule Of Real Estate Owned Held For Sale [Line Items]            
Proceeds from sale of real estate $ 4,100          
Gain on sale of real estate 1,100          
Early termination penalty $ 200