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Receivables
3 Months Ended
Mar. 31, 2014
Receivables [Abstract]  
Receivables
RECEIVABLES
Receivables consist of the following:
Dollar amounts in millions
March 31, 2014
 
December 31, 2013
Trade receivables
$
135.9

 
$
69.2

Interest receivables
0.7

 
0.2

Income tax receivable
0.5

 
1.2

Other receivables
7.0

 
8.6

Allowance for doubtful accounts
(1.1
)
 
(1.1
)
Total
$
143.0

 
$
78.1


Other receivables at March 31, 2014 and December 31, 2013 primarily consist of sales tax receivables, receivables from our joint venture, miscellaneous receivables and other items.