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SIGNIFICANT CUSTOMERS AND GEOGRAPHIC NET REVENUES Geograpic Net Revenues (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Revenue by Geography |  |  |  |
Total net revenues | $ 110,085 | $ 111,255 | $ 322,648 | $ 323,506
United States of America |  |  |  |
Revenue by Geography |  |  |  |
Total net revenues | 4,460 | 4,775 | 12,056 | 13,078
Hong Kong/China |  |  |  |
Revenue by Geography |  |  |  |
Total net revenues | 59,178 | 59,328 | 169,149 | 170,720
Taiwan |  |  |  |
Revenue by Geography |  |  |  |
Total net revenues | 11,210 | 12,424 | 36,010 | 36,220
Korea |  |  |  |
Revenue by Geography |  |  |  |
Total net revenues | 8,087 | 9,343 | 25,965 | 28,527
Western Europe (excluding Germany) |  |  |  |
Revenue by Geography |  |  |  |
Total net revenues | 12,842 | 12,963 | 37,910 | 37,685
Japan |  |  |  |
Revenue by Geography |  |  |  |
Total net revenues | 5,040 | 4,853 | 15,238 | 15,338
Germany |  |  |  |
Revenue by Geography |  |  |  |
Total net revenues | 3,873 | 2,817 | 10,882 | 8,528
Other |  |  |  |
Revenue by Geography |  |  |  |
Total net revenues | $ 5,395 | $ 4,752 | $ 15,438 | $ 13,410

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