v3.19.3.a.u2

UNIT-BASED COMPENSATION Table 4 - Unit Awards (Details) - USD ($) $ in Thousands |  |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Feb. 11, 2020 | Nov. 26, 2019 | Feb. 11, 2019 | Jul. 23, 2018 | Jun. 29, 2018 | Apr. 18, 2017 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Share-based Payment Arrangement [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Unit-based compensation, description of performance units |  |  |  |  |  |  | Unit awards are equity-classified awards of fully vested common units. We accrued compensation expense in 2019 and 2018 that was paid in unit awards in February of the subsequent years. We base the number of unit awards granted on the fair value of the common units at the grant date. |  |
Weighted-average grant date fair value, granted |  |  | $ 17,537 | $ 1,358 |  |  |  |  |
Unit-based awards, granted (units) |  |  | 704,886 | 55,133 |  |  |  |  |
Common Limited Partner [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Issuance of units (units) |  | 527,426 |  |  | 413,736 | 14,375,000 | 527,426 | 413,736 | 14,375,000
Common Limited Partner [Member] | Share-based Payment Arrangement [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Issuance of units (units) |  |  | 482,971 | 35,745 |  |  |  |  |
Subsequent Event [Member] | Share-based Payment Arrangement [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Weighted-average grant date fair value, granted | $ 22,846 |  |  |  |  |  |  |  |
Unit-based awards, granted (units) | 822,979 |  |  |  |  |  |  |  |
Subsequent Event [Member] | Common Limited Partner [Member] | Share-based Payment Arrangement [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Issuance of units (units) | 563,806 |  |  |  |  |  |  |  |

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