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Income Taxes- Expiration period for unrecognized deferred tax assets (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 USD ($)
Financial Risk Management |
Unrecognized deferred tax assets | $ 41,411
Taiwan operations | Expiration Year 2025 To 2029 |
Financial Risk Management |
Deductible amount | 100,779
Unrecognized deferred tax assets | $ 20,156
Expiration year | 2025~2029
Taiwan operations | Expiration Year 2030 To 2034 |
Financial Risk Management |
Deductible amount | $ 84,871
Unrecognized deferred tax assets | $ 16,974
Expiration year | 2030~2034
Hong Kong operations |
Financial Risk Management |
Deductible amount | $ 1,825
Unrecognized deferred tax assets | $ 150
Expiration year | Indefinitely
US operations | Expiration 2025 to Indefinitely |
Financial Risk Management |
Deductible amount | $ 15,075
Unrecognized deferred tax assets | $ 4,131
Expiration year | 2025~Indefinitely

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