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Income Taxes (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Expense Benefit [Line Items]
Earnings before income taxes	$ 85,494us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	$ 75,400us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	$ 65,886us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Taiwan Operations [Member]
Income Tax Expense Benefit [Line Items]
Earnings before income taxes	69,532us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_TaiwanOperationsMember	77,130us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_TaiwanOperationsMember	73,461us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_TaiwanOperationsMember
Cayman Operations [Member]
Income Tax Expense Benefit [Line Items]
Earnings before income taxes	16,996us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_CaymanOperationsMember	(57)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_CaymanOperationsMember	(7,395)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_CaymanOperationsMember
US operations [Member]
Income Tax Expense Benefit [Line Items]
Earnings before income taxes	(2,248)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_UsOperationsMember	(2,251)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_UsOperationsMember	(1,597)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_UsOperationsMember
China Operations [Member]
Income Tax Expense Benefit [Line Items]
Earnings before income taxes	1,105us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_ChinaOperationsMember	506us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_ChinaOperationsMember	1,388us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_ChinaOperationsMember
Korea Operations [Member]
Income Tax Expense Benefit [Line Items]
Earnings before income taxes	91us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_KoreaOperationsMember	55us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_KoreaOperationsMember	29us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_KoreaOperationsMember
Japan Operations [Member]
Income Tax Expense Benefit [Line Items]
Earnings before income taxes	$ 18us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_JapanOperationsMember	$ 17us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_JapanOperationsMember	$ 0us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_EntityByLocationAxis = himx_JapanOperationsMember

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- Definition

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 940

-SubTopic 20

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35710027&loc=d3e41242-110953



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

-Article 5

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