Quarterly report pursuant to Section 13 or 15(d)

Management Agreement (Details)

v3.20.1
Management Agreement (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Aug. 12, 2019
Jun. 29, 2015
Corridor Infra Trust Management          
Management Agreement [Line Items]          
Incentive fee $ 171        
General and Administrative Expense | Corridor Infra Trust Management          
Management Agreement [Line Items]          
Fees incurred under Management Agreement 1,600 $ 1,800      
Payments to administrator pursuant to Administrative Agreement $ 64 $ 68      
5.875% Convertible Senior Notes | Convertible Debt          
Management Agreement [Line Items]          
Interest rate 5.875%   5.875% 5.875%  
7.00% Convertible Senior Notes | Convertible Debt          
Management Agreement [Line Items]          
Interest rate 7.00%   7.00%   7.00%