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Income Taxes (Tables)
 6 Months Ended
Jun. 30, 2014
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
June 30,
  
Six Months Ended
June 30,
 
 
 
2014
  
2013
  
2014
  
2013
 
 
 
(In thousands)
 
 
 
  
  
  
 
Tax provision (benefit) before valuation allowance
 
$
17,172
  
$
4,472
  
$
40,292
  
$
(17,118
)
Change in valuation allowance
  
(16,054
)
  
(3,482
)
  
(38,448
)
  
19,247
 
 
                
Provision for income taxes
 
$
1,118
  
$
990
  
$
1,844
  
$
2,129