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Other Assets (Tables)
 12 Months Ended
Dec. 31, 2013
Other Assets [Abstract]  
Schedule of Other Assets
Other assets consisted of the following ($ in millions):

 
December 31,
 
2013
 
2012
Capitalized software costs, net of accumulated amortization
$
7.0

 
$
11.4

Business tax credits, including VAT and ICMS (net of $13.8 million and $17.8 million reserve as of December 31, 2013 and 2012, respectively)
3.1

 
3.9

Grantor trust assets
10.0

 
7.6

Net pension assets
4.4

 
—

Other assets
7.1

 
2.6

Total
$
31.6

 
$
25.5