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ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables) | 3 Months Ended
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Mar. 31, 2018
Equity [Abstract] |
Schedule of accumulated other comprehensive loss | The changes in accumulated other comprehensive loss by component and related tax effects for the three months ended March 31, 2018 were as follows (in thousands):
| Foreign Currency Translation |  | Unrealized Losses on Available-For-Sale Securities |  | Unfunded Pension Liability |  | Total
Balance at January 1, 2018 | $ | (170,575 | ) |  | $ | (146 | ) |  | $ | (1,686 | ) |  | $ | (172,407 | )
Other comprehensive loss before tax effects | (16,551 | ) |  | (115 | ) |  | — |  |  | (16,666 | )
Tax effects | — |  |  | (80 | ) |  | — |  |  | (80 | )
Other comprehensive loss | $ | (16,551 | ) |  | $ | (195 | ) |  | $ | — |  |  | $ | (16,746 | )
Balance at March 31, 2018 | $ | (187,126 | ) |  | $ | (341 | ) |  | $ | (1,686 | ) |  | $ | (189,153 | )

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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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