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Stockholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2016
Equity [Abstract]  
Schedule of Accumulated Other Comprehensive Loss
The components of AOCI, on an after-tax basis where applicable, were as follows (in thousands):
 
December 31,
 
2016
 
2015
Foreign currency translation adjustments
$
(7,267
)
 
$
(2,634
)
Gain (loss) on investments, net of taxes (1)
276

 
(1,538
)
Loss on cash flow hedges (1)
—

 
(246
)
Actuarial loss
(279
)
 
—

   Total accumulated other comprehensive loss
$
(7,270
)
 
$
(4,418
)