GOODWILL AND INTANGIBLES - INTANGIBLE ASSETS NET (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Finite-lived Intangible Assets
Net Amount	$ 222.4	$ 225.2
Trade Names
Finite-lived Intangible Assets
Indefinite-Lived intangible asset	27.3	27.3
Customer Relationships.
Finite-lived Intangible Assets
Total	230.7	230.7
Less: Accumulated Amortization	(35.6)	(32.8)
Net Amount	195.1	197.9
Estimated amortization expenses related to intangibles
Net Amount	195.1	197.9
Ocean Transportation | Customer Relationships.
Finite-lived Intangible Assets
Total	140.6	140.6
Logistics | Customer Relationships.
Finite-lived Intangible Assets
Total	$ 90.1	$ 90.1