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Segment, Product and Geographic Information (Details 4) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Significant Customer [Line Items]
Entity Wide Revenue Major Customers Amount	$ 316,657himx_EntityWideRevenueMajorCustomersAmount	$ 304,235himx_EntityWideRevenueMajorCustomersAmount	$ 338,043himx_EntityWideRevenueMajorCustomersAmount
INX and its Affiliates [Member]
Segment Reporting Significant Customer [Line Items]
Entity Wide Revenue Major Customers Amount	164,552himx_EntityWideRevenueMajorCustomersAmount / us-gaap_MajorCustomersAxis = himx_CmiAndAffiliatesMember	173,976himx_EntityWideRevenueMajorCustomersAmount / us-gaap_MajorCustomersAxis = himx_CmiAndAffiliatesMember	251,974himx_EntityWideRevenueMajorCustomersAmount / us-gaap_MajorCustomersAxis = himx_CmiAndAffiliatesMember
Customer A And Its Affiliates [Member]
Segment Reporting Significant Customer [Line Items]
Entity Wide Revenue Major Customers Amount	$ 152,105himx_EntityWideRevenueMajorCustomersAmount / us-gaap_MajorCustomersAxis = himx_CustomerAAndItsAffiliatesMember	$ 130,259himx_EntityWideRevenueMajorCustomersAmount / us-gaap_MajorCustomersAxis = himx_CustomerAAndItsAffiliatesMember	$ 86,069himx_EntityWideRevenueMajorCustomersAmount / us-gaap_MajorCustomersAxis = himx_CustomerAAndItsAffiliatesMember

X

- Definition

Amount of revenue generated from external customers that accounts for 10 percent or more of an entity's revenues.

+ References

No definition available.

+ Details

Name:	himx_EntityWideRevenueMajorCustomersAmount
Namespace Prefix:	himx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

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

X

- Details

Name:	us-gaap_MajorCustomersAxis=himx_CmiAndAffiliatesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_MajorCustomersAxis=himx_CustomerAAndItsAffiliatesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: