v3.19.3.a.u2
ACQUISITIONS Narrative 2 (Details) - USD ($)
$ in Thousands
6 Months Ended 9 Months Ended 12 Months Ended
Nov. 26, 2019
Jun. 29, 2018
Apr. 28, 2017
Apr. 18, 2017
Jun. 30, 2018
Sep. 30, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Business Acquisition [Line Items]                  
Contributions from general partner             $ 0 $ 204 $ 13,737
General partner ownership interest         2.00%       2.00%
Common Limited Partner [Member]                  
Business Acquisition [Line Items]                  
Issuance of units (units) 527,426 413,736   14,375,000     527,426 413,736 14,375,000
General Partner [Member]                  
Business Acquisition [Line Items]                  
Contributions from general partner       $ 13,600   $ 200      
General partner ownership interest         2.00%        
Series B Preferred Limited Partner [Member]                  
Business Acquisition [Line Items]                  
Issuance of units (units)     15,400,000            
Logistics Notes Due 2027 [Member]                  
Business Acquisition [Line Items]                  
Senior notes issued     $ 550,000       $ 550,000 $ 550,000  
Stated interest rate     5.625%       5.625%