Quarterly report pursuant to Section 13 or 15(d)

Debt - (Mortgage Note Payable) (Details)

v3.8.0.1
Debt - (Mortgage Note Payable) (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]    
Mortgage notes payable $ 60 $ 61
Non-recourse Mortgage Note Due January 1, 2021    
Debt Instrument [Line Items]    
Mortgage notes payable $ 60  
Interest rate 5.14%  
Net book value of collateralized properties $ 170