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REPORTABLE SEGMENTS (Details) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 USD ($) | Jun. 30, 2018 USD ($) | Mar. 31, 2018 USD ($) | Sep. 30, 2017 USD ($) | Jun. 30, 2017 USD ($) | Mar. 31, 2017 USD ($) | Sep. 30, 2018 USD ($) segment | Sep. 30, 2017 USD ($)
Segment results |  |  |  |  |  |  |  |
Number of segments | segment |  |  |  |  |  |  | 2 |
Operating Revenue | $ 589.4 |  |  | $ 543.9 |  |  | $ 1,657.9 | $ 1,530.8
Operating Income | 58.6 |  |  | 58.3 |  |  | 133.3 | 122.5
Interest expense, net | (4.4) |  |  | (6.2) |  |  | (14.4) | (18.8)
Other income (expense), net | 0.7 |  |  | 3.5 |  |  | 1.9 | 1.6
Income before Income Taxes | 54.9 |  |  | 55.6 |  |  | 120.8 | 105.3
Income taxes | (13.3) |  |  | (21.5) |  |  | (32.4) | (40.2)
Net Income | 41.6 | $ 32.6 | $ 14.2 | 34.1 | $ 24.0 | $ 7.0 | 88.4 | 65.1
Equity in income of Terminal Joint Venture | 9.2 |  |  | 7.5 |  |  | 28.8 | 19.3
Operating segments |  |  |  |  |  |  |  |
Segment results |  |  |  |  |  |  |  |
Operating Income | 58.6 |  |  | 58.3 |  |  | 133.3 | 122.5
Intersegment Eliminations |  |  |  |  |  |  |  |
Segment results |  |  |  |  |  |  |  |
Operating Revenue | 27.6 |  |  | 24.1 |  |  | 72.7 | 62.7
Ocean Transportation | Operating segments |  |  |  |  |  |  |  |
Segment results |  |  |  |  |  |  |  |
Operating Revenue | 437.3 |  |  | 419.2 |  |  | 1,223.2 | 1,181.9
Operating Income | 48.7 |  |  | 51.0 |  |  | 109.7 | 106.3
Logistics | Operating segments |  |  |  |  |  |  |  |
Segment results |  |  |  |  |  |  |  |
Operating Revenue | 152.1 |  |  | 124.7 |  |  | 434.7 | 348.9
Operating Income | $ 9.9 |  |  | $ 7.3 |  |  | $ 23.6 | $ 16.2

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