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Commitments And Contingencies (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Commitments And Contingencies [Line Items]    
Purchase commitments for certain ingredients, packaging materials and energy $ 183.5 $ 184.7
Outstanding aggregate balance on loans $ 100.7  
Percentage of outstanding loans under the guarantee 25.00%  
Percentage of new loans issued 25.00%