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Capital management (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Capital management        
Total liabilities $ 807,937 $ 731,212    
Less: cash and cash equivalents 221,581 336,024 $ 184,938 $ 101,055
Total liabilities less current assets 586,356 395,188    
Equity attributable to owners of Himax Technologies, Inc. $ 892,572 $ 869,724