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Acquisition (Details 1) (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011
Net revenues | $ 737,255 | $ 633,177
Net income attributable to Himax Technologies, Inc. stockholders | $ 49,262 | $ 2,895
Basic and diluted earnings per share attributable to Himax Technologies, Inc. stockholders (in dollars per share) | $ 0.14 | $ 0.01

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