XML 50 R39.htm IDEA: XBRL DOCUMENT v3.7.0.1
Related Party Debt - Schedule of Consolidated Related Party Debt Obligations (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Nov. 11, 2015
Nov. 03, 2014
Line Of Credit Facility [Line Items]        
Outstanding borrowing $ 685,300,000 $ 686,000,000    
Unamortized debt issuance costs $ (1,600,000) $ (900,000)    
Five Year Fixed Facility, fixed rate, due March 1, 2022 | Shell Treasury Center West Inc        
Line Of Credit Facility [Line Items]        
Debt instrument term 5 years      
Five Year Revolver, variable rate, due October 31, 2019 | Shell Treasury Center West Inc        
Line Of Credit Facility [Line Items]        
Line of credit facility maximum borrowing capacity       $ 300,000,000.0
Debt instrument term 5 years      
364-Day Revolver, variable rate, due March 1, 2017 | Shell Treasury Center West Inc        
Line Of Credit Facility [Line Items]        
Line of credit facility maximum borrowing capacity     $ 180,000,000.0  
Debt instrument term 364 days 364 days    
Fixed Facility | Five Year Fixed Facility, fixed rate, due March 1, 2022        
Line Of Credit Facility [Line Items]        
Outstanding borrowing $ 0 $ 0    
Fixed Facility | Five Year Fixed Facility, fixed rate, due March 1, 2022 | Shell Treasury Center West Inc        
Line Of Credit Facility [Line Items]        
Line of credit facility maximum borrowing capacity $ 600,000,000      
Debt instrument term 5 years      
Revolving Credit Facility | Zydeco        
Line Of Credit Facility [Line Items]        
Outstanding borrowing $ 0 0    
Revolving Credit Facility | Zydeco | Shell Treasury Center West Inc        
Line Of Credit Facility [Line Items]        
Line of credit facility maximum borrowing capacity 30,000,000      
Revolving Credit Facility | Five Year Revolver, variable rate, due October 31, 2019        
Line Of Credit Facility [Line Items]        
Outstanding borrowing 686,900,000 686,900,000    
Revolving Credit Facility | Five Year Revolver, variable rate, due October 31, 2019 | Shell Treasury Center West Inc        
Line Of Credit Facility [Line Items]        
Line of credit facility maximum borrowing capacity $ 760,000,000.0      
Debt instrument term 5 years      
Remaining borrowing capacity $ 73,100,000      
Revolving Credit Facility | 364-Day Revolver, variable rate, due March 1, 2017        
Line Of Credit Facility [Line Items]        
Outstanding borrowing $ 0 $ 0    
Revolving Credit Facility | 364-Day Revolver, variable rate, due March 1, 2017 | Shell Treasury Center West Inc        
Line Of Credit Facility [Line Items]        
Debt instrument term 364 days