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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables) | 12 Months Ended
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Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | Accumulated other comprehensive income (loss) consisted of the following at the dates set forth below (amounts in thousands):
| Currency Translation Adjustments |  | Unrecognized Losses and Prior Service Cost |  | Total
Balance at January 1, 2016 | $ | (161,030 | ) |  | $ | (26,721 | ) |  | $ | (187,751 | )
Currency translation adjustments | (1,598 | ) |  | — |  |  | (1,598 | )
Defined benefit pension plan entries: |  |  |  |  |  |  |  |
Unrecognized prior service cost, net of tax of $0 | — |  |  | 137 |  |  | 137 |
Unrecognized net loss, net of tax of $(439) | — |  |  | 934 |  |  | 934 |
Balance at December 31, 2016 | (162,628 | ) |  | (25,650 | ) |  | (188,278 | )
Currency translation adjustments | 29,679 |  |  | — |  |  | 29,679 |
Defined benefit pension plan entries: |  |  |  |  |  |  |  |
Unrecognized prior service cost, net of tax of $0 | — |  |  | 136 |  |  | 136 |
Unrecognized net gain, net of tax of $215 | — |  |  | 1,387 |  |  | 1,387 |
Balance at December 31, 2017 | $ | (132,949 | ) |  | $ | (24,127 | ) |  | $ | (157,076 | )

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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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