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Accounts Receivable
12 Months Ended
Dec. 31, 2013
Accounts Receivable [Abstract]  
Accounts Receivable
Accounts Receivable

Accounts receivable are summarized as follows ($ in millions):

 
December 31,
 
2013
 
2012
Trade receivables
$
78.0

 
$
70.6

Business tax credits, including VAT
5.4

 
5.6

Hedge contracts receivable

 
0.4

Other receivables
24.6

 
19.4

Less allowance for doubtful accounts and sales discounts
(0.4
)
 
(0.6
)
Total accounts receivable
$
107.6

 
$
95.4