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ACQUISITION (Unaudited Combined Pro Forma Results of Operations) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Oct. 03, 2016
Business Acquisition [Line Items]      
Revenues $ 1,381.3 $ 1,421.3  
Net earnings 108.1 $ 128.0  
Produquímica      
Business Acquisition [Line Items]      
Percentage of equity interest prior to acquisition     35.00%
Acquisition costs $ 1.8