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Inventories
3 Months Ended
Mar. 31, 2015
Inventories [Abstract]  
Inventories
4.Inventories

At March 31, 2015, and December 31, 2014, inventories included finished and in-process products totaling $292.4 million and $308.7 million, respectively, and raw materials and supplies of $117.9 million and $140.7 million, respectively.