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Business Combination Finite-Lived Intangible Assets (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 0 Months Ended
Mar. 31, 2014
Dec. 16, 2013
Dec. 16, 2013
Technology-Based Intangible Assets [Member]
Dec. 16, 2013
Trademarks and Trade Names [Member]
Dec. 16, 2013
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Assets, Net   $ 83.4 $ 44.7 $ 13.2 $ 25.5
Finite-Lived Intangible Asset, Useful Life     10 years 20 years 15 years
Schedule of Finite-Lived Intangible Assets [Table Text Block]
The preliminary fair values of the intangible assets acquired consisted of the following:
(in millions)
 
Fair Value
 
Estimated Useful Life
Technology and software
 
$
44.7

 
10 years
Trade names and trademarks
 
13.2

 
20 years
Customer relationships
 
25.5

 
15 years
Total identifiable intangible assets
 
$
83.4