Annual report pursuant to Section 13 and 15(d)

Real Estate and Intangible Assets - Leasing Activity (Details)

v3.10.0.1
Real Estate and Intangible Assets - Leasing Activity (Details)
$ in Thousands
12 Months Ended
Dec. 01, 2017
ft²
May 31, 2016
property
Dec. 31, 2018
USD ($)
ft²
property
Dec. 31, 2017
USD ($)
ft²
property
Dec. 31, 2016
USD ($)
Jul. 25, 2014
ft²
Real Estate Properties [Line Items]            
Number of leased properties | property     3 9    
Aggregate Square Footage | ft²     97,178 880,749    
Annualized GAAP Rent     $ 1,253 $ 6,976    
Tenant Improvement     433 1,264    
Leasing Commissions     242 742    
Aggregate Deferred Rent Write Off     200 0 $ 0  
Tenant reimbursements     3,530 1,988 1,489  
Property area | ft²           81,371
Rental revenue     $ 103,268 $ 92,811 84,498  
Lease Contraction            
Real Estate Properties [Line Items]            
Number of leased properties | property     2 0    
Aggregate Square Footage | ft²     169,133      
Aggregate Square Footage Reduced | ft²     44,032      
Aggregate Deferred Rent Write Off     $ 184      
Rental revenue     $ 559      
Weighted Average            
Real Estate Properties [Line Items]            
Lease Term     5 years 3 months 15 days 9 years 2 months 12 days    
Minimum            
Real Estate Properties [Line Items]            
Lease Term     3 years 7 months 6 days 1 year    
Maximum            
Real Estate Properties [Line Items]            
Lease Term     7 years 11 years 3 months    
Newburyport, Massachusetts            
Real Estate Properties [Line Items]            
Number of leased properties | property   1        
Tenant reimbursements         900  
Other Income | Newburyport, Massachusetts            
Real Estate Properties [Line Items]            
Tenant reimbursements         300  
Vance, Alabama Industrial Building            
Real Estate Properties [Line Items]            
Property area | ft²       75,000    
Buildings and improvements, gross       $ 6,700    
Rental revenue     $ 2,100 $ 1,800 $ 1,200  
Vance, Alabama Industrial Building | Maximum            
Real Estate Properties [Line Items]            
Lease Term       10 years    
Salt Lake City, Utah            
Real Estate Properties [Line Items]            
Lease Term 10 years 1 month 6 days          
Property area | ft² 102,028          
Salt Lake City, Utah | Lease Contraction            
Real Estate Properties [Line Items]            
Aggregate Square Footage | ft²     81,271      
Aggregate Square Footage Reduced | ft²     23,632      
Aggregate Deferred Rent Write Off     $ 100      
Rental revenue     $ 300      
Champaign, Illinois | Lease Contraction            
Real Estate Properties [Line Items]            
Aggregate Square Footage | ft²     87,862      
Aggregate Square Footage Reduced | ft²     20,400      
Aggregate Deferred Rent Write Off     $ 100      
Rental revenue     $ 200