v3.8.0.1
PROPERTY, PLANT AND EQUIPMENT Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Property, Plant and Equipment [Abstract]      
Capitalized interest costs $ 5.5 $ 3.4 $ 5.5
Depreciation and amortization expense for property, plant and equipment $ 222.5 $ 200.7 $ 192.3