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Inventories
3 Months Ended
Mar. 31, 2013
Inventories [Abstract]  
Inventories
5.  
Inventories

At March 31, 2013, and December 31, 2012, inventories included finished and in-process products totaling $289.1 million and $301.6 million, respectively, and raw materials and supplies of $136.0 million and $141.1 million, respectively.