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Equity (Details Textual) (USD $) | 12 Months Ended | 36 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2010 | Dec. 31, 2009 | Dec. 31, 2008 | Dec. 31, 2010 | Oct. 31, 2011 | Jun. 20, 2011 | Nov. 14, 2008
American Depositary Shares Authorized Maximum |  |  |  |  |  |  | $ 25,000,000 | $ 50,000,000
American Depositary Shares Repurchased Shares | 9,488,656 | 3,854,026 | 13,125,251 | 2,369,091 | 19,348,368 |  |  |
American Depositary Shares Repurchased Value | 13,400,000 |  |  |  | 50,000,000 |  |  |
Average Price Per American Depositary Share | $ 1.41 |  |  |  | $ 2.58 |  |  |
American Depositary Shares Held By Parent | 8,774,987 |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 100.00% |  |  |  |  |  |  |
Accumulated Legal and Special Reserve | $ 50,750,000 |  |  |  |  | $ 47,297,000 |  |

X
- Definition It represents the value of accumulated legal and special reserve. + References No definition available. + Details
Name: | himx_AccumulatedLegalAndSpecialReserve
Namespace Prefix: | himx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition It represents the value of american depository shares authorized maximum. + References No definition available. + Details
Name: | himx_AmericanDepositarySharesAuthorizedMaximum
Namespace Prefix: | himx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition It represents the number of shares of american depository shares held by parent. + References No definition available. + Details
Name: | himx_AmericanDepositarySharesHeldByParent
Namespace Prefix: | himx_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition It represents the number of shares of american depository shares repurchased. + References No definition available. + Details
Name: | himx_AmericanDepositarySharesRepurchasedShares
Namespace Prefix: | himx_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition It represents the value of american depository shares reurchased. + References No definition available. + Details
Name: | himx_AmericanDepositarySharesRepurchasedValue
Namespace Prefix: | himx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition It represents the average exercise price of american depository shares. + References No definition available. + Details
Name: | himx_AveragePricePerAmericanDepositaryShare
Namespace Prefix: | himx_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant