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Accumulated Other Comprehensive Loss (Tables) | 9 Months Ended
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Sep. 30, 2018
Equity [Abstract] |
Schedule of changes in accumulated balances of other comprehensive loss | The following table summarizes the changes in accumulated balances of other comprehensive loss (in thousands):
| Three Months Ended |  | Nine Months Ended
| September 30, |  | September 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Beginning balance | $ | (4,115 | ) |  | $ | (3,687 | ) |  | $ | (3,597 | ) |  | $ | (3,787 | )
Other comprehensive income (loss) due to foreign currency translation, net of tax | 138 |  |  | 131 |  |  | (380 | ) |  | 231 |
Ending balance | $ | (3,977 | ) |  | $ | (3,556 | ) |  | $ | (3,977 | ) |  | $ | (3,556 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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