Annual report pursuant to Section 13 and 15(d)

Leased Properties and Leases - Future Minimum Lease Receipts (Details)

v3.6.0.2
Leased Properties and Leases - Future Minimum Lease Receipts (Details)
12 Months Ended
Dec. 31, 2016
USD ($)
Sale Leaseback Transaction [Line Items]  
2017 $ 61,201,298
2018 61,356,965
2019 63,724,621
2020 70,890,429
2021 77,071,774
Thereafter 376,628,521
Total $ 710,873,608
Portland Terminal Facility [Member]  
Sale Leaseback Transaction [Line Items]  
Initial lease term 15 years
Exercise period of purchase option 90 days