Quarterly report pursuant to Section 13 or 15(d)

Management and Advisory Agreements (Details)

v3.3.0.814
Management and Advisory Agreements (Details) - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2015
Nov. 30, 2011
Agreements (Textual) [Abstract]    
Annually rate of fee percentage on the value of company's average daily managed assets 0.04%  
Administrator minimum annual fee $ 30  
Corridor Infra Trust Management [Member]    
Agreements (Textual) [Abstract]    
Quarterly management fee percentage on the value of company's average monthly managed assets   0.25%
Annual management fee percentage on the value of company's average monthly managed assets   1.00%
Quarterly incentive fee on increase in distributions paid   10.00%
Threshold distribution per quarter   $ 0.125