Annual report pursuant to Section 13 and 15(d)

Real Estate Dispositions, Held for Sale, and Impairment Charges - Summary of Properties Sold (Detail)

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Real Estate Dispositions, Held for Sale, and Impairment Charges - Summary of Properties Sold (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
ft²
property
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Gain on Sale of Real Estate, net $ 8,096 $ 2,952 $ 2,763
Assets disposed of by sale      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Number of non-core properties sold | property 6    
Aggregate Square Footage | ft² 551,743    
Sales Price $ 37,532    
Sales Costs 1,698    
Gain on Sale of Real Estate, net $ 8,096