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Income Taxes (Tables)
 9 Months Ended
Sep. 30, 2013
Income Taxes [Abstract]  
Tax provision (benefit)
The effect of the change in valuation allowance on the provision for (benefit from) income taxes was as follows:
 
 
 
Three Months Ended
  
Nine Months Ended
 
 
 
September 30,
  
September 30,
 
 
 
2013
  
2012
  
2013
  
2012
 
 
 
(In thousands)
 
 
 
  
  
  
 
Tax benefit before valuation allowance
 
$
(674
)
 
$
(89,106
)
 
$
(17,792
)
 
$
(196,535
)
Change in valuation allowance
  
1,010
   
86,134
   
20,257
   
192,035
 
 
                
Provision for (benefit from) income taxes
 
$
336
  
$
(2,972
)
 
$
2,465
  
$
(4,500
)