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% | |||||||