Quarterly report pursuant to Section 13 or 15(d)

Real Estate Dispositions, Held for Sale and Impairment Charges - Components of Income from Real Estate and Related Assets Held for Sale (Detail)

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Real Estate Dispositions, Held for Sale and Impairment Charges - Components of Income from Real Estate and Related Assets Held for Sale (Detail)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
USD ($)
property
Jun. 30, 2016
USD ($)
Jun. 30, 2017
USD ($)
property
Jun. 30, 2016
USD ($)
Real Estate Properties [Line Items]        
Operating expense $ 14,357 $ 13,433 $ 32,062 $ 26,688
(Loss) gain on sale of real estate, net (1,914) 0 $ 3,992 0
Number of properties sold | property     3  
Impairment charge 253 187 $ 3,999 230
Assets disposed of by sale        
Real Estate Properties [Line Items]        
Operating revenue 803 645 1,280 1,290
Operating expense 75 199 1,491 413
Other (expense) income, net (1,914) (90) 3,830 (218)
Income (loss) from real estate and related assets sold (1,186) 356 3,619 659
Rental income $ 600   $ 600  
Number of properties sold | property 1   1  
(Loss) gain on sale of real estate, net $ (1,900)   $ 3,992  
Number of properties sold | property 2   3  
Impairment charge     $ 1,308  
Held for sale        
Real Estate Properties [Line Items]        
Operating revenue $ 0 0 0 0
Operating expense 345 109 2,924 251
Other (expense) income, net 0 240 0 148
Income (loss) from real estate and related assets sold (345) 131 (2,924) (103)
(Loss) gain on sale of real estate, net (1,800)   (1,800)  
Legal settlement income   $ 300   $ 300
Impairment charge $ 300   $ 2,700