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Inventories
6 Months Ended
Jun. 30, 2013
Inventories [Abstract]  
Inventories
5.Inventories

At June 30, 2013 and December 31, 2012, inventories included finished and in-process products totaling $278.2 million and $301.6 million, respectively, and raw materials and supplies of $148.8 million and $141.1 million, respectively.