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Accumulated Other Comprehensive Loss | 12 Months Ended
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Dec. 31, 2017
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):
| Year Ended December 31,
| 2017 |  | 2016 |  | 2015
Beginning balance | $ | (3,787 | ) |  | $ | (3,908 | ) |  | $ | (2,602 | )
Other comprehensive income (loss) due to foreign currency translation, net of tax | 190 |  |  | 121 |  |  | (1,306 | )
Ending balance | $ | (3,597 | ) |  | $ | (3,787 | ) |  | $ | (3,908 | )
There were no amounts reclassified from accumulated other comprehensive income (loss) for the years ended December 31, 2017, 2016 and 2015. Accumulated other comprehensive income (loss) consists of foreign currency translation gain or loss.

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 + Details
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