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Accumulated Other Comprehensive Income (Loss) (Tables)
 9 Months Ended
Sep. 30, 2018
Equity [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) The following tables set forth the changes in accumulated other comprehensive income (loss), net of tax (in thousands) for the periods presented:
 
Unrealized Gain (Loss) on Available-for-Sale Securities
 
Gain (Loss) on Derivative Securities
 
Foreign Currency Translation Adjustments
 
Accumulated Other Comprehensive Income (Loss)
Balance, July 1, 2018
$
(67
)
 
$
372

 
$
(866
)
 
$
(561
)
Current period other comprehensive income before reclassifications
40

 
28

 
82

 
150

Reclassification of amounts to earnings
—

 
(46
)
 
—

 
(46
)
Net other comprehensive income (loss) during period
40

 
(18
)
 
82

 
104

Balance, September 30, 2018
$
(27
)
 
$
354

 
$
(784
)
 
$
(457
)
 
Unrealized Gain (Loss) on Available-for-Sale Securities
 
Gain on Derivative Securities
 
Foreign Currency Translation Adjustments
 
Accumulated Other Comprehensive Loss
Balance, January 1, 2018
$
(64
)
 
$
216

 
$
(411
)
 
$
(259
)
Current period other comprehensive income (loss) before reclassifications
37

 
242

 
(373
)
 
(94
)
Reclassification of amounts to earnings
—

 
(104
)
 
—

 
(104
)
Net other comprehensive income (loss) during period
37

 
138

 
(373
)
 
(198
)
Balance, September 30, 2018
$
(27
)
 
$
354

 
$
(784
)
 
$
(457
)
 
Unrealized Gain (Loss) on Available-for-Sale Securities
 
Gain on Derivative Securities
 
Foreign Currency Translation Adjustments
 
Accumulated Other Comprehensive Income (Loss)
Balance, July 1, 2017
$
(36
)
 
$
83

 
$
(784
)
 
$
(737
)
Current period other comprehensive income before reclassifications
22

 
8

 
371

 
401

Reclassification of amounts to earnings
—

 
15

 
—

 
15

Net other comprehensive income during period
22

 
23

 
371

 
416

Balance, September 30, 2017
$
(14
)
 
$
106

 
$
(413
)
 
$
(321
)
 
Unrealized Loss on Available-for-Sale Securities
 
Gain (Loss) on Derivative Securities
 
Foreign Currency Translation Adjustments
 
Accumulated Other Comprehensive Income (Loss)
Balance, January 1, 2017
$
(8
)
 
$
(24
)
 
$
(1,185
)
 
$
(1,217
)
Current period other comprehensive income (loss) before reclassifications
(6
)
 
6

 
772

 
772

Reclassification of amounts to earnings
—

 
124

 
—

 
124

Net other comprehensive income (loss) during period
(6
)
 
130

 
772

 
896

Balance, September 30, 2017
$
(14
)
 
$
106

 
$
(413
)
 
$
(321
)