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Income Taxes (Details)	12 Months Ended
	Dec. 31, 2012
Himax Taiwan [Member] | Investment One [Member]
Tax Exemption Period	January 1, 2006-December 31, 2010
Himax Taiwan [Member] | Investment Two [Member]
Tax Exemption Period	January 1, 2008-December 31, 2012
Himax Taiwan [Member] | Investment Three [Member]
Tax Exemption Period	January 1, 2013-December 31, 2017
Himax Semi Conductor [Member]
Tax Exemption Period	January 1, 2009-December 31, 2013

X

- Definition

The period during which tax is exempted.

+ References

No definition available.

+ Details

Name:	himx_TaxExemptionPeriod
Namespace Prefix:	himx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration