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Other Comprehensive Loss (Tables)
 3 Months Ended
Mar. 31, 2019
Equity [Abstract]  
Total Accumulated Other Comprehensive Loss
Total accumulated other comprehensive loss consisted of the following (in thousands):
 
Net Unrealized
 Loss on
Available-For-
Sale Securities
 
Foreign
Currency
Translation
Adjustments
 
Unrealized
Foreign Exchange
Loss on
Intercompany
Balance
 
Accumulated
Other
Comprehensive
Loss
December 31, 2018
$
(14
)
 
$
(9,672
)
 
$
(957
)
 
$
(10,643
)
Current period other comprehensive income (loss)
26

 
662

 
(679
)
 
9

March 31, 2019
$
12

 
$
(9,010
)
 
$
(1,636
)
 
$
(10,634
)