v3.8.0.1
PARTNERS' EQUITY Narrative 2 (Details) - $ / shares
3 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2017
Class of Stock [Line Items]      
General partner ownership interest 2.00%   2.00%
Common Limited Partner [Member]      
Class of Stock [Line Items]      
Common unitholders ownership interest 98.00%    
Cash distributions per unit applicable to common limited partners $ 0.60 $ 1.095 $ 1.095
General Partner [Member]      
Class of Stock [Line Items]      
General partner ownership interest 2.00%