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Financial Risk Management (Details 1)	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2017
Customer A And Its Affiliates [Member]
Percentage Of Accounts Receivable	33.50%	32.40%	28.90%
Customer B And Its Affiliates [Member]
Percentage Of Accounts Receivable	12.90%	15.40%	19.10%

X

- Definition

It represents to Percentage of trade accounts receivable

+ References

No definition available.

+ Details

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Namespace Prefix:	himx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	ifrs-full_MajorCustomersAxis=himx_CustomerAAndItsAffiliatesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=himx_CustomerBAndItsAffiliatesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: