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Comprehensive Loss
6 Months Ended
Jun. 30, 2011
Comprehensive Loss [Abstract]  
Comprehensive Loss
8.  
Comprehensive Loss

Comprehensive loss of the Company includes net loss adjusted for the change in net unrealized gain (loss) on marketable securities, net of any tax effect.  For the three and six months ended June 30, 2011 and 2010, the components of comprehensive loss are:

 
Three months ended June 30,
 
2011
2010
Net loss
$(62,505)
$(25,474)
Change in net unrealized gain (loss) on marketable securities, net of tax effect of $0.9 million in 2011
 
1,271
 
(1,023)
   Total comprehensive loss
$(61,234)
$(26,497)

 
Six months ended June 30,
 
2011
2010
Net loss
$(105,952)
$(55,996)
Change in net unrealized gain (loss) on marketable securities, net of tax effect of $1.1 million in 2011
 
1,587
 
(1,350)
   Total comprehensive loss
$(104,365)
$(57,346)