NET INCOME (LOSS) PER COMMON UNIT Narrative (Details) - shares |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Diluted weighted-average common units outstanding | 109,529,658 | 109,194,722 | 109,518,004 | 109,046,061 |
| Performance Shares | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Diluted weighted-average common units outstanding | 0 | 0 | 0 | 0 |