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Segment, Product and Geographic Information - Segment revenues from customers in different geographic region (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of operating segments [line items] |  |  |
Revenue | $ 1,547,097 | $ 887,282 | $ 671,835
China [Member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenue | 1,261,098 | 707,002 | 472,372
Taiwan [Member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenue | 219,106 | 123,180 | 129,257
Other Asia Pacific (Philippines, Korea and Japan) |  |  |
Disclosure of operating segments [line items] |  |  |
Revenue | 66,184 | 56,195 | 68,779
Europe and America [Member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenue | 709 | 905 | 1,427
Driver IC [Member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenue | 1,361,442 | 756,522 | 544,727
Driver IC [Member] | China [Member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenue | 1,149,442 | 643,527 | 421,729
Driver IC [Member] | Taiwan [Member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenue | 167,728 | 88,001 | 90,971
Driver IC [Member] | Other Asia Pacific (Philippines, Korea and Japan) |  |  |
Disclosure of operating segments [line items] |  |  |
Revenue | 44,272 | 24,964 | 31,861
Driver IC [Member] | Europe and America [Member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenue |  | 30 | 166
Non-driver products [Member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenue | 185,655 | 130,760 | 127,108
Non-driver products [Member] | China [Member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenue | 111,656 | 63,475 | 50,643
Non-driver products [Member] | Taiwan [Member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenue | 51,378 | 35,179 | 38,286
Non-driver products [Member] | Other Asia Pacific (Philippines, Korea and Japan) |  |  |
Disclosure of operating segments [line items] |  |  |
Revenue | 21,912 | 31,231 | 36,918
Non-driver products [Member] | Europe and America [Member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenue | $ 709 | $ 875 | $ 1,261

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