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SERIES D CUMULATIVE CONVERTIBLE PREFERRED UNITS Table (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jul. 13, 2018
Jun. 29, 2018
Sep. 30, 2018
Sep. 30, 2018
Temporary Equity [Line Items]        
Beginning balance     $ 370,711 $ 0
Ending balance     559,844 559,844
Series D Preferred Limited Partner [Member]        
Temporary Equity [Line Items]        
Net income     13,848 14,060
Distributions to partners     (13,848) (14,060)
Issuance of units $ 185,100 $ 370,700 185,102 555,813
Series D Preferred Unit accretion     $ 4,031 $ 4,031