XML 42 R31.htm IDEA: XBRL DOCUMENT v3.4.0.3
Related Party Transactions - Additional Information (Details)
3 Months Ended
Mar. 31, 2016
USD ($)
credit_facility
Mar. 31, 2015
USD ($)
Dec. 31, 2015
Related Party Transaction [Line Items]      
Indemnification liability deductble amount $ 500,000    
Aggregate liability of SPLC 15,000,000    
Revenue from related parties $ 25,400,000 $ 19,400,000 [1]  
Zydeco      
Related Party Transaction [Line Items]      
Minority interest ownership percentage by noncontrolling owners 37.50% 57.00% 37.50%
Total distributions to general partners $ 20,600,000    
Transportation Services      
Related Party Transaction [Line Items]      
Revenue from related parties 23,300,000 $ 17,600,000  
Storage Services      
Related Party Transaction [Line Items]      
Revenue from related parties $ 2,100,000 1,800,000  
Shell Treasury Center West Inc      
Related Party Transaction [Line Items]      
Number of revolving credit facilities | credit_facility 2    
Zydeco, Mars, Bengal, Poseidon and Colonial      
Related Party Transaction [Line Items]      
Total distributions to general partners $ 49,700,000    
SPLC      
Related Party Transaction [Line Items]      
General and administrative - related parties 1,300,000 1,200,000  
General insurance expense $ 900,000 $ 800,000  
Five Year Revolver | Shell Treasury Center West Inc      
Related Party Transaction [Line Items]      
Debt instrument term 5 years    
364 Day Revolver | Shell Treasury Center West Inc      
Related Party Transaction [Line Items]      
Debt instrument term 364 days    
[1] (1) The 2015 financial information has been retrospectively adjusted for the acquisition of the Shell Auger and Lockport Operations.