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Consolidated Statements of Comprehensive Income (Parenthetical) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jul. 02, 2011
Jun. 30, 2012
Jul. 02, 2011
Other comprehensive income (loss):        
Tax benefit (provision), Change in fair value of cash flow hedges $ (0.1) $ 0 $ (0.1) $ 0.2
Tax benefit, Reclassification adjustment for hedge gains and losses included in net income   $ 0.1 $ 0 $ 0.1