Annual report pursuant to Section 13 and 15(d)

Intangible Assets on Real Estate Acquisitions (Details)

v3.6.0.2
Intangible Assets on Real Estate Acquisitions (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Intangible assets on real estate acquisitions      
Gross Carrying Amount $ 223,054 $ 227,481  
Accumulated Amortization 144,703 129,143  
Net Carrying Amount 78,351 98,338  
Amortization of the intangible assets $ 20,000 18,500 $ 15,200
Weighted average amortization period of intangible assets 11 years    
Estimated future amortization expense associated with the intangible asset categories for the next five years      
2017 $ 16,800    
2018 11,600    
2019 8,600    
2020 6,800    
2021 6,600    
In-place lease value [Member]      
Intangible assets on real estate acquisitions      
Gross Carrying Amount 132,647 134,664  
Accumulated Amortization 99,940 89,540  
Net Carrying Amount $ 32,707 45,124  
Weighted average amortization period of intangible assets 6 years    
Tenant relationship value [Member]      
Intangible assets on real estate acquisitions      
Gross Carrying Amount $ 60,028 62,172  
Accumulated Amortization 26,253 23,468  
Net Carrying Amount $ 33,775 38,704  
Weighted average amortization period of intangible assets 10 years    
Below-market cost arrangements [Member]      
Intangible assets on real estate acquisitions      
Gross Carrying Amount $ 15,102 15,102  
Accumulated Amortization 7,285 6,692  
Net Carrying Amount $ 7,817 8,410  
Weighted average amortization period of intangible assets 35 years    
Above-market leases [Member]      
Intangible assets on real estate acquisitions      
Gross Carrying Amount $ 13,944 14,210  
Accumulated Amortization 10,259 8,491  
Net Carrying Amount $ 3,685 5,719  
Weighted average amortization period of intangible assets 3 years    
Other [Member]      
Intangible assets on real estate acquisitions      
Gross Carrying Amount $ 1,333 1,333  
Accumulated Amortization 966 952  
Net Carrying Amount $ 367 $ 381  
Weighted average amortization period of intangible assets 26 years