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Accumulated Other Comprehensive Income (Loss) (Tables)
 6 Months Ended
Jun. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Abstract]  
Accumulated Other Comprehensive Income (Loss)
The following table summarizes the changes in accumulated other comprehensive income (loss) by component, net of tax:
 
 
Foreign Currency Translation Adjustment
 
Unrealized Holding Gains (Losses) on Marketable Securities, Net of Tax
 
Total
 
 
(in thousands)
Balance at December 31, 2012
 
$
(746
)
 
$
196

 
$
(550
)
Other comprehensive income (loss) before reclassifications
 
(521
)
 
(159
)
 
(680
)
Amounts reclassified from accumulated other comprehensive income (loss)
 
—

 
—

 
—

Net current period other comprehensive income (loss)
 
(521
)
 
(159
)
 
(680
)
Balance at June 30, 2013
 
$
(1,267
)
 
$
37

 
$
(1,230
)