Quarterly report pursuant to Section 13 or 15(d)

Credit Facility, Notes Payable and Derivative Instruments - Scheduled Principal Payments Due On West Mifflin Note Payable (Details)

v3.19.2
Credit Facility, Notes Payable and Derivative Instruments - Scheduled Principal Payments Due On West Mifflin Note Payable (Details) - West Mifflin Note Payable [Member] - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Sep. 25, 2015
Debt Instrument [Line Items]      
2019 (six months remaining) $ 68    
2020 7,220    
Total $ 7,288 $ 7,356 $ 7,378