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Subsequent Events (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Feb. 25, 2014
Dec. 31, 2013
Subsequent Event Note 15 [Abstract]      
Business Acquisition, Cost of Acquired Entity, Purchase Price   $ 950.0 $ 1,392.7
Debt Instrument, Increase, Additional Borrowings 300.0    
Line of Credit Facility, Increase, Additional Borrowings $ 600.0