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Accounts Receivable
12 Months Ended
Dec. 31, 2018
Receivables [Abstract]  
Accounts Receivable
Accounts Receivable

Accounts receivable, net are summarized as follows ($ in millions):
 
December 31,
 
2018
 
2017
Trade receivables
$
130.9

 
$
120.2

Business tax credits, including VAT
4.0

 
4.3

Hedge contracts receivable
2.1

 
4.8

Other receivables
19.3

 
21.1

Less allowance for doubtful accounts and sales discounts
(1.7
)
 
(1.0
)
Total accounts receivable, net
$
154.6

 
$
149.4