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Shipping and Handling Fees and Costs (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Oct. 02, 2011
Sep. 30, 2012
Oct. 02, 2011
Shipping and handling fees and costs $ 3.0 $ 3.5 $ 9.4 $ 10.3