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Income Taxes (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax [Line Items]        
Percentage Of Additional Corporate Income Tax Rate On Undistributed Income 10.00%      
Percentage Of Surtax Rate 10.00%      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate 17.00% 17.00% 17.00%  
Income Tax Exemption Per Basic and Diluted Earnings Share $ 0.01 $ 0.01 $ 0.01  
Undistributed Earnings of Foreign Subsidiaries $ 642,591      
Deferred Tax Assets, Valuation Allowance $ 51,242 $ 44,320 $ 40,966 $ 38,347
Percentage Of Income Tax Payable 50.00%      
Percentage Of Research and Development Expenditure For Current Year On Investment Tax Credit 15.00%      
Cap Percentage Of Income Tax Payable For Current Year 30.00%      
Unrecognized Tax Benefits that Would Impact Effective Tax Rate $ 1,052 1,335    
Combined Tax Rate 23.85%      
Tax Exemption From Income $ 3,922 1,759 2,843  
Income Tax Expense (Benefit) 10,671 11,405 21,591  
Income Tax Reconciliation, Tax Credits, Investment 4,970 4,242 4,525  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense 0 0 110  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued 108 106    
Himax Media Solution, Inc [Member]        
Income Tax [Line Items]        
Income Tax Expense (Benefit) (275) 0 $ (1,221)  
Except For Himax Taiwan, Himax Semiconductor, Himax Korea, Himax Japan, Himax Technologies (Suzhou) Co., Ltd., Himax Technologies (Shenzhen) Co., Ltd., and Himax Imaging Corp [Member]        
Income Tax [Line Items]        
Deferred Tax Assets, Valuation Allowance $ 51,242 $ 44,320