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Accumulated Other Comprehensive Income
 6 Months Ended
Jun. 30, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Comprehensive Income
Accumulated Other Comprehensive Loss

The following table summarizes the changes in accumulated other comprehensive loss, which is reported as a component of stockholders' equity, for the six months ended June 30, 2013 (in thousands):
 
Foreign Currency Translation Adjustments
 
Net Unrealized Gain (Loss) on Investments
 
Total
Balance as of January 1, 2013
$
(2,354
)
 
$
714

 
$
(1,640
)
Other comprehensive loss, net of tax
(7,760
)
 
(1,555
)
 
(9,315
)
Balance as of June 30, 2013
$
(10,114
)
 
$
(841
)
 
$
(10,955
)


The tax effect on accumulated unrealized gain (loss) on investments was $(0.5) million and $0.4 million as of June 30, 2013 and December 31, 2012, respectively. Amounts reclassified from accumulated other comprehensive loss to net income were insignificant for the six months ended June 30, 2013.