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Accumulated Other Comprehensive Loss
 6 Months Ended
Jun. 30, 2018
Equity [Abstract]  
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Loss
The following table summarizes the changes in accumulated balances of other comprehensive loss (in thousands):
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2018
 
2017

2018
 
2017
Beginning balance
$
(3,780
)
 
$
(3,820
)
 
$
(3,597
)
 
$
(3,787
)
Other comprehensive income (loss) due to foreign currency translation, net of tax
(335
)
 
133

 
(518
)
 
100

Ending balance
$
(4,115
)
 
$
(3,687
)

$
(4,115
)
 
$
(3,687
)

There were no amounts reclassified from accumulated other comprehensive loss for the three and six months ended June 30, 2018 and 2017.