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Fair Value Measurement (Details Textual) (USD $) In Millions, unless otherwise specified | 12 Months Ended |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2011 | Oct. 31, 2012 Driver Ic Reporting Unit [Member] | Oct. 31, 2011 Driver Ic Reporting Unit [Member] | Dec. 31, 2011 Minimum [Member] | Dec. 31, 2011 Maximum [Member]
Corporate straight bond and concersion option, Fair Value Disclosure |  | $ 571.9 | $ 367.4 |  |
Fair Value Inputs, Discount Rate | 1.4532% |  |  |  |
Fair Value Assumptions, Risk Free Interest Rate | 0.9139% |  |  |  |
Fair Value Assumptions, Expected Term | 3 years 7 months 6 days |  |  | 2 years | 5 years
Fair Value Assumptions, Expected Volatility Rate | 40.78% |  |  |  |
Fairvalue Investee Risk Premium Percentage | 0.54% |  |  |  |
Weighted Average Cost Of Capital |  | 21.30% | 23.00% |  |
Long Term Growth Rate |  | 1.10% | (8.00%) |  |
Percentage Of Variation Between Fair Value and Carrying Amount |  | 54.30% | 7.60% |  |

X
- Definition This element represents the aggregate of the corporate straight bond and concersion option reported on the balance sheet at period end measured at fair value by the entity. + References No definition available. + Details
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Namespace Prefix: | himx_
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Balance Type: | debit
Period Type: | instant

X
- Definition The percentage of fair value investees risk premium. + References No definition available. + Details
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Namespace Prefix: | himx_
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Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage of long term growth rate. + References No definition available. + Details
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Namespace Prefix: | himx_
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Balance Type: | na
Period Type: | instant

X
- Definition Represents the percentage by which the fair value of intangible asset exceeds the carrying amount. + References No definition available. + Details
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Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the percentage of weighted average cost of capital. + References No definition available. + Details
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Namespace Prefix: | himx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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Period Type: | duration

X
- Definition Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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- Definition Risk-free interest rate assumption used in valuing an instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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