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Accumulated Other Comprehensive Income (Tables)
 6 Months Ended
Jun. 30, 2015
Equity [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss)
 
Foreign currency translation adjustment
(Amount in thousands)
 
Unrealized gain (loss) on available-for-sale securities
(Amount in thousands)
 
Accumulated Other Comprehensive Income (Loss)
(Amount in thousands)
Beginning balance at December 31, 2014
$
(424
)
 
$
(7
)
 
$
(431
)
Current period other comprehensive income (loss)
(635
)
 
14

 
(621
)
Balance at June 30, 2015
(1,059
)
 
7

 
(1,052
)