v3.10.0.1

REVENUE FROM CONTRACTS WITH CUSTOMERS Table 1 - Adoption Impact of ASC 606 (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |
Revenues | $ 486,204 | $ 435,488 | $ 962,085 | $ 922,918
Operating income (loss) | 79,838 | 73,404 | 178,318 | 170,543
Net income (loss) | $ 29,399 | $ 26,250 | $ 155,532 | $ 84,190
Basic net income per common unit | $ 0.15 | $ 0.05 | $ 1.30 | $ 0.51
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Revenue Recognition [Member] |  |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |
Revenues | $ 484,646 |  | $ 966,432 |
Operating income (loss) | 78,280 |  | 182,665 |
Net income (loss) | $ 27,841 |  | $ 159,879 |
Basic net income per common unit | $ 0.13 |  | $ 1.34 |
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Revenue Recognition [Member] |  |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |
Revenues | $ 1,558 |  | $ (4,347) |
Operating income (loss) | 1,558 |  | (4,347) |
Net income (loss) | $ 1,558 |  | $ (4,347) |
Basic net income per common unit | $ 0.02 |  | $ (0.04) |

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