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Other Current Assets (Tables)
9 Months Ended
Sep. 30, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Other Current Assets
Other current assets consisted of the following:
(in millions)
 
September 30, 2015
 
December 31, 2014
Prepaid expenses
 
$
43.5

 
$
43.4

Deferred income tax assets
 
33.3

 
51.2

Other investments
 
10.8

 
8.8

Marketable securities
 
2.9

 
3.0

Deferred financing fees
 
1.2

 
8.2

Income taxes receivable
 
0.3

 
2.8

Other
 
3.0

 
5.3

Total other current assets
 
$
95.0

 
$
122.7