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Income Taxes - Unrecognized Deferred Tax Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Unused tax credits |  |
Financial Risk Management |  |
Deductible temporary differences for which no deferred tax asset is recognised | $ 1,560 | $ 1,560
Unused operating loss carryforwards-statutory tax |  |
Financial Risk Management |  |
Deductible temporary differences for which no deferred tax asset is recognised | 202,550 | 215,956
Unused operating loss carryforwards-undistributed earnings tax |  |
Financial Risk Management |  |
Deductible temporary differences for which no deferred tax asset is recognised | 284,914 | 288,301
Others temporary difference [member] |  |
Financial Risk Management |  |
Deductible temporary differences for which no deferred tax asset is recognised | 17,422 | 19,468
Total |  |
Financial Risk Management |  |
Deductible temporary differences for which no deferred tax asset is recognised | $ 506,446 | $ 525,285

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