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Restructuring (Tables)
 9 Months Ended
Sep. 30, 2013
Restructuring and Related Activities [Abstract]  
Summary of Changes Restructuring Reserves
The following table summarizes the changes in the Company’s restructuring reserves during the nine months ended September 30, 2013:
 
(in millions)
Severance
Balance at December 31, 2012
$
1.0

Payments
(0.1
)
Adjustments
(0.6
)
Balance at September 30, 2013
$
0.3