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OTHER COMPREHENSIVE GAIN (LOSS) (Tables) | 12 Months Ended
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Dec. 31, 2017
Schedule of Tax Effects Allocated to Each Component of Other Comprehensive Income (Loss) | The tax effects allocated to each component of other comprehensive loss were as follows:
Years Ended December 31, |  | 2017 |  |  | 2016 |  |  | 2015 |
Foreign currency translation adjustment |  | $ | 15,993 |  |  | $ | 6,211 |  |  | $ | (39,378 | )
Unrealized (loss) gain on cash flow hedging instruments |  |  | (961 | ) |  |  | (1,321 | ) |  |  | 3,716 |
Income tax benefit (expense) |  |  | 259 |  |  |  | 356 |  |  |  | (1,003 | )
Unrealized (loss) gain on cash flow hedging instruments, net of tax |  |  | (702 | ) |  |  | (965 | ) |  |  | 2,713 |
Reclassification of (gain) loss on cash flow hedging instruments into earnings |  |  | (491 | ) |  |  | 442 |  |  |  | (2,730 | )
Income tax expense (benefit) |  |  | 133 |  |  |  | (119 | ) |  |  | 737 |
Reclassification of (gain) loss on cash flow hedging instruments into earnings, net of tax |  |  | (358 | ) |  |  | 323 |  |  |  | (1,993 | )
Unrealized gain (loss) on available-for-sale securities |  |  | 51 |  |  |  | 27 |  |  |  | (12 | )
Income tax (expense) benefit |  |  | (66 | ) |  |  | (13 | ) |  |  | 4 |
Unrealized (loss) gain on available-for-sale securities, net of tax |  |  | (15 | ) |  |  | 14 |  |  |  | (8 | )
Other comprehensive gain (loss) |  | $ | 14,918 |  |  | $ | 5,583 |  |  | $ | (38,666 | )
Schedule of Accumulated Other Comprehensive Loss | The changes in each component of accumulated other comprehensive loss, net of tax, were as follows:
Years Ended December 31, |  | 2017 |  |  | 2016 |  |  | 2015 |
Foreign currency translation adjustment: |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (43,459 | ) |  | $ | (47,204 | ) |  | $ | (23,623 | )
Current period other comprehensive gain (loss) |  |  | 9,960 |  |  |  | 3,745 |  |  |  | (23,581 | )
Ending balance |  |  | (33,499 | ) |  |  | (43,459 | ) |  |  | (47,204 | )
Cash flow hedging instruments: |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  | 215 |  |  |  | 600 |  |  |  | 168 |
Current period other comprehensive (loss) income |  |  | (421 | ) |  |  | (579 | ) |  |  | 1,628 |
Less reclassification adjustment |  |  | (215 | ) |  |  | 194 |  |  |  | (1,196 | )
Ending balance |  |  | (421 | ) |  |  | 215 |  |  |  | 600 |
Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  | (286 | ) |  |  | (300 | ) |  |  | (292 | )
Current period other comprehensive (loss) income |  |  | (15 | ) |  |  | 14 |  |  |  | (8 | )
Ending balance |  |  | (301 | ) |  |  | (286 | ) |  |  | (300 | )
Accumulated other comprehensive loss, net of tax |  | $ | (34,221 | ) |  | $ | (43,530 | ) |  | $ | (46,904 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e526-108580 + Details
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