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Long-Term Debt (Maturities of Long-Term Debt) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Maturities of Long-term Debt [Abstract]    
2013 $ 29.8  
2014 29.5  
2015 24.2  
2016 1,051.8  
2017 166.9  
Thereafter 793.9  
Debt and capital lease obligations $ 2,096.1 $ 1,647.0