Quarterly report pursuant to Section 13 or 15(d)

Real Estate - Schedule of Acquisitions (Details)

v3.19.1
Real Estate - Schedule of Acquisitions (Details)
$ in Thousands
Mar. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Jan. 18, 2018
USD ($)
ft²
Real Estate [Line Items]      
Real Estate Investment Property, at Cost $ 2,889,077 $ 2,886,585  
Arlington Tower [Member]      
Real Estate [Line Items]      
Net Rentable Square Feet | ft²     391,000
Real Estate Investment Property, at Cost     $ 250,000