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Income Taxes (Tables)
3 Months Ended
Mar. 31, 2014
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit)
($ in thousands)
 
 
Three months ended
 
 
March 31, 2014
 
March 31, 2013
Benefit for income taxes
 
$
(24,232
)
 
$
(7,979
)
Effective tax rate
 
38
%
 
35
%