Inventories (Tables)
9 Months Ended
Sep. 30, 2011
Inventories [Abstract] 
Inventories
Inventories consist of the following (in millions):
   
September 30,
  
December 31,
 
   
2011
  
2010
 
Finished goods
 $147.5  $149.4 
Raw materials and supplies
  38.3   55.6 
Total inventories
 $185.8  $205.0