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Other Income, Net (Tables)
 3 Months Ended
Mar. 31, 2013
Other Income, Net [Abstract]  
Components of Other Income, Net
The components of other income, net are as follows:
 
 
 
For the three months ended March 31,
 
($ in thousands)
 
2013
 
 
2012
 
 
 
 
 
 
 
 
Gain on expiration/settlement of customer advances
 
$
1,952
 
 
$
3,463
 
All other, net
 
 
(360
)
 
 
22
 
    Total other income, net
 
$
1,592
 
 
$
3,485