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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

Name:	himx_CorporateStraightBondAndConcersionOptionFairValueDisclosure
Namespace Prefix:	himx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The percentage of fair value investees risk premium.

+ References

No definition available.

+ Details

Name:	himx_FairvalueInvesteeRiskPremiumPercentage
Namespace Prefix:	himx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the percentage of long term growth rate.

+ References

No definition available.

+ Details

Name:	himx_LongTermGrowthRate
Namespace Prefix:	himx_
Data Type:	num:percentItemType
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

Name:	himx_PercentageOfVariationBetweenFairValueAndCarryingAmount
Namespace Prefix:	himx_
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

Name:	himx_WeightedAverageCostOfCapital
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

Name:	us-gaap_FairValueAssumptionsExpectedTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
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

Name:	us-gaap_FairValueAssumptionsExpectedVolatilityRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- 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

Name:	us-gaap_FairValueAssumptionsRiskFreeInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- 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

Name:	us-gaap_FairValueInputsDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration