Annual report pursuant to Section 13 and 15(d)

Real Estate and Intangible Assets - Weighted Average Amortization Period for Intangible Assets Acquired and Liabilities Assumed (Detail)

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Real Estate and Intangible Assets - Weighted Average Amortization Period for Intangible Assets Acquired and Liabilities Assumed (Detail)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items]    
All intangible assets and liabilities 5 years 10 months 24 days 2 years 1 month 6 days
In-place lease values    
Acquired Finite-Lived Intangible Assets [Line Items]    
All intangible assets and liabilities 4 years 7 months 6 days 1 year 10 months 24 days
Leasing costs    
Acquired Finite-Lived Intangible Assets [Line Items]    
All intangible assets and liabilities 8 years 3 months 18 days 3 years
Above-market lease values and lease incentives    
Acquired Finite-Lived Intangible Assets [Line Items]    
All intangible assets and liabilities 10 years 0 years
Below-market lease values and other deferred revenue    
Acquired Finite-Lived Intangible Assets [Line Items]    
All intangible assets and liabilities 1 year 3 months 18 days 2 years 6 months