Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Additional Information (Details)

v3.19.3.a.u2
Subsequent Events - Additional Information (Details)
$ in Thousands
 1 Months Ended 12 Months Ended
Jan. 27, 2020
USD ($)
ft²
property
tenant
Jan. 09, 2020
property
Jan. 08, 2020
USD ($)
ft²
tenant
Feb. 12, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
shares
Dec. 31, 2018
USD ($)
Jan. 29, 2020
USD ($)
Jan. 23, 2020
Subsequent Event [Line Items]                
Aggregate Purchase Price         $ 130,313 $ 63,245    
Weighted average lease term         22 years 10 months 24 days      
Long-term debt         $ 626,594 $ 566,059    
Indianapolis, Indiana | Subsequent event                
Subsequent Event [Line Items]                
Property area | ft²     64,800          
Aggregate Purchase Price     $ 5,300          
Number of tenants | tenant     3          
Weighted average lease term     7 years 2 months 12 days          
Houston, Texas; Charlotte, North Carolina; St. Charles, Missouri | Subsequent event                
Subsequent Event [Line Items]                
Property area | ft² 320,838              
Aggregate Purchase Price $ 34,700              
Number of tenants | tenant 1              
Number of properties in portfolio | property 3              
Lease term 20 years              
Springfield, Missouri | Subsequent event                
Subsequent Event [Line Items]                
Number of tenants | property   1            
Lease renewal term   5 years            
Englewood, Colorado | Subsequent event                
Subsequent Event [Line Items]                
Lease renewal term               5 years
Fixed rate mortgage loans                
Subsequent Event [Line Items]                
Stated interest rate (as a percent)         4.55%      
Fixed rate mortgage loans | Houston, Texas; Charlotte, North Carolina; St. Charles, Missouri | Subsequent event                
Subsequent Event [Line Items]                
Number of properties in portfolio | property 3              
Long-term debt $ 18,300              
Stated interest rate (as a percent) 3.625%              
Series E Preferred Stock ATM Program | Series E Preferred Stock | Subsequent event                
Subsequent Event [Line Items]                
Number of shares sold (in shares) | shares       0        
2020 Universal Shelf | Subsequent event                
Subsequent Event [Line Items]                
Universal registration statement, amount authorized             $ 800,000  
Common Stock | Common Stock ATM Program | Subsequent event                
Subsequent Event [Line Items]                
Net proceeds from sale of shares       $ 27,900        
Number of shares sold (in shares) | shares       1,300,000.0        
Cantor Fitzgerald & Co | Common Stock | Common Stock ATM Program                
Subsequent Event [Line Items]                
Net proceeds from sale of shares         $ 64,500      
Number of shares sold (in shares) | shares         3,000,000