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Statements of Cash Flow (Tables)
6 Months Ended
Jun. 30, 2012
Supplemental Cash Flow Information [Abstract]  
Statements of Cash Flow
 
 
Six Months ended June 30,
($ in thousands)
 
2012
 
2011
Cash paid during the period for:
 
 

 
 

Interest
 
$
9,389

 
9,103

Federal income tax
 
6,300

 
3,673