Annual report pursuant to Section 13 and 15(d)

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

v2.4.1.9
Real Estate and Lease Intangibles - Weighted Average Amortization Period for Intangible Assets Acquired and Liabilities Assumed (Detail)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]    
All intangible assets and liabilities 3 years 3 months 18 days 2 years 10 months 24 days
In-place Leases [Member]    
Acquired Finite-Lived Intangible Assets [Line Items]    
All intangible assets and liabilities 2 years 2 months 12 days 2 years
Leasing Commissions [Member]    
Acquired Finite-Lived Intangible Assets [Line Items]    
All intangible assets and liabilities 5 years 1 month 6 days 7 years
Tenant Relationships [Member]    
Acquired Finite-Lived Intangible Assets [Line Items]    
All intangible assets and liabilities 4 years 8 months 12 days  
Above-Market Lease Values [Member]    
Acquired Finite-Lived Intangible Assets [Line Items]    
All intangible assets and liabilities 3 years  
Below-Market Lease Values [Member]    
Acquired Finite-Lived Intangible Assets [Line Items]    
All intangible assets and liabilities 1 year 6 months 2 years