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21. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables) | 12 Months Ended
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Dec. 31, 2017
Accumulated Other Comprehensive Income Loss Tables |
Accumulated other comprehensive income (loss) |
|  |  |  | At December 31 |  | At December 31
(in thousands) |  |  |  | 2017 |  | 2016
Cumulative foreign currency translation |  |  | $ | (48,454) | $ | (61,371)
Unamortized experience gain – post employment liability |  |  |  |
Gross |  |  |  | 786 |  | 786
Tax effect |  |  |  | (208) |  | (208)
Unrealized gains on investments |  |  |  |  |  |
Gross |  |  |  | 11 |  | 7
|  |  | $ | (47,865) | $ | (60,786)

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