Annual report pursuant to Section 13 and 15(d)

Property Portfolio (summary of the acquired lease intangible amortization) (Details)

v3.19.1
Property Portfolio (summary of the acquired lease intangible amortization) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Leases, Acquired-in-Place [Member]      
Property, Plant and Equipment [Line Items]      
Finite-Lived Intangible Assets, Accumulated Amortization $ 2,460 $ 1,542 $ 35
Lease Costs [Member]      
Property, Plant and Equipment [Line Items]      
Finite-Lived Intangible Assets, Accumulated Amortization 1,165 530 7
market ground lease [Member]      
Property, Plant and Equipment [Line Items]      
Finite-Lived Intangible Assets, Accumulated Amortization 22 6 0
Above Market Leases [Member]      
Property, Plant and Equipment [Line Items]      
Finite-Lived Intangible Assets, Accumulated Amortization 876 220 0
Below Market Lease [Member]      
Property, Plant and Equipment [Line Items]      
Finite-Lived Intangible Assets, Accumulated Amortization $ (210) $ (97) $ (1)