Quarterly report pursuant to Section 13 or 15(d)

SEGMENT REPORTING SEGMENT REPORTING (Narrative) (Details)

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SEGMENT REPORTING SEGMENT REPORTING (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Segment Reporting Information [Line Items]        
Amortization of Intangible Assets $ 0.2 $ 0.2 $ 0.4 $ 0.4
Payments To Acquire Property Plant And Equipment Net     (114.4) (48.5)
Payments to Acquire Property, Plant, and Equipment     72.3 5.1
Capital Expenditures Incurred but Not yet Paid     $ 34.9 $ 3.2