v3.10.0.1
PARTNERS' EQUITY Narrative 1 (Details) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended 9 Months Ended
Jun. 29, 2018
Apr. 18, 2017
Jun. 30, 2018
Sep. 30, 2018
Sep. 30, 2017
Class of Stock [Line Items]          
Contributions from general partner       $ 204 $ 13,597
General partner ownership interest     2.00%    
Common Limited Partner [Member]          
Class of Stock [Line Items]          
Issuance of units (units) 413,736 14,375,000      
Units issued, price per unit $ 24.17        
Proceeds from issuance of common limited partner units $ 10,200        
General Partner [Member]          
Class of Stock [Line Items]          
Contributions from general partner       $ 200  
General partner ownership interest     2.00%