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Income Taxes- Expiration period for unrecognized deferred tax assets (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
USD ($)
IFRS Statement [Line Items]  
Unrecognized deferred tax assets $ 50,610
Taiwan [Member] | Expiration Year 2022 To 2026 [Member]  
IFRS Statement [Line Items]  
Deductible amount 103,870
Unrecognized deferred tax assets $ 20,774
Expiration year 2022~2026
Taiwan [Member] | Expiration Year 2027 To 2031 [Member]  
IFRS Statement [Line Items]  
Deductible amount $ 107,909
Unrecognized deferred tax assets $ 21,582
Expiration year 2027~2031
Hong Kong [Member]  
IFRS Statement [Line Items]  
Deductible amount $ 1,818
Unrecognized deferred tax assets $ 150
Expiration year Indefinitely
U.S. [Member] | Expiration Year 2024 To 2041 [Member]  
IFRS Statement [Line Items]  
Deductible amount $ 12,451
Unrecognized deferred tax assets $ 3,510
Expiration year 2024~2041
Israel [Member]  
IFRS Statement [Line Items]  
Deductible amount $ 19,975
Unrecognized deferred tax assets $ 4,594
Expiration year Indefinitely