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Debt - Fair Value and Future Maturities of Long-Term Debt (Details) (USD $)
In Millions, unless otherwise specified
Dec. 29, 2013
Dec. 30, 2012
Debt Disclosure [Abstract]    
Principal $ 629.8 $ 630.7
Carrying Amount 644.3 649.4
Fair Value 679.7 690.5
Long-term debt premium 14.5 18.7
Maturities of Long-term Debt [Abstract]    
Maturities of long-term debt in 2014 1.0  
Maturities of long-term debt in 2015 1.0  
Maturities of long-term debt in 2016 1.0  
Maturities of long-term debt in 2017 626.0  
Maturities of long-term debt in 2018 $ 0.8