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Indebtedness - Additional Information (Detail)
$ in Thousands, ft² in Millions
3 Months Ended
Mar. 31, 2016
USD ($)
ft²
Property
Dec. 31, 2015
USD ($)
Debt Disclosure [Line Items]    
Assumed mortgage loan $ (4,513)  
Number of industrial properties acquired | Property 1  
Gross leasable area (GLA) of industrial properties acquired | ft² 0.1  
Assumed mortgage, premium $ (529)  
2016 Notes    
Debt Disclosure [Line Items]    
Extinguishment of debt, amount 159,679  
Mortgages    
Debt Disclosure [Line Items]    
Unamortized deferred financing costs 3,625 $ 3,714
Assumed mortgage loan $ 4,513  
Number of industrial properties acquired | Property 1  
Gross leasable area (GLA) of industrial properties acquired | ft² 0.1  
Assumed mortgage, fixed interest rate 7.35%  
Assumed mortgage, term 25 years  
Assumed mortgage, premium $ (529)  
Assumed mortgage, premium (551) (64)
Extinguishment of debt, amount 57,901  
Net carrying value of industrial properties collateralized by mortgage loans 676,569  
Senior Unsecured Notes    
Debt Disclosure [Line Items]    
Unamortized deferred financing costs 450 499
Unsecured Term Loan    
Debt Disclosure [Line Items]    
Unamortized deferred financing costs 3,863 4,030
Unsecured Credit Facility    
Debt Disclosure [Line Items]    
Unamortized deferred financing costs $ (3,872) $ (4,204)