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)

v3.10.0.1
Real Estate and Intangible Assets - Weighted Average Amortization Period for Intangible Assets Acquired and Liabilities Assumed (Detail)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Weighted average amortization period 13 years 6 months 22 days 10 years 2 months 12 days
In-Place Leases    
Finite-Lived Intangible Assets [Line Items]    
Weighted average amortization period 11 years 8 months 16 days 9 years 4 months 24 days
Leasing Costs    
Finite-Lived Intangible Assets [Line Items]    
Weighted average amortization period 11 years 8 months 16 days 9 years 4 months 24 days
Customer Relationships    
Finite-Lived Intangible Assets [Line Items]    
Weighted average amortization period 19 years 3 months 4 days 12 years 9 months 18 days
Above Market Leases    
Finite-Lived Intangible Assets [Line Items]    
Weighted average amortization period 10 years 4 months 24 days 10 years
Below Market Leases    
Finite-Lived Intangible Assets [Line Items]    
Weighted average amortization period 12 years 5 months 12 days 8 years 4 months 24 days