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Income Taxes (Schedule of Components of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Deferred tax assets: |  |
Net operating loss carryforwards | $ 21,420 | $ 33,679
Tax credit carryforwards | 69,373 | 88,147
Property, plant and equipment | 18,512 | 21,387
Deferred interest expense | 446 | 476
Accrued liabilities | 37,968 | 37,832
Receivable | 27,284 | 30,086
Unrealized foreign exchange loss | 23,769 | 7,205
Operating lease liabilities | 14,825 | 16,053
Other | 14,203 | 15,219
Total deferred tax assets | 227,800 | 250,084
Valuation allowance | (107,113) | (114,811)
Total deferred tax assets net of valuation allowance | 120,687 | 135,273
Deferred tax liabilities: |  |
Property, plant and equipment | 27,442 | 34,206
Deferred gain | 3,341 | 5,739
Unrealized foreign exchange gain | 6,674 | 3,129
Unbilled receivables | 6,508 | 8,995
Operating lease right of use assets | 14,240 | 16,031
Other | 6,560 | 5,533
Total deferred tax liabilities | 64,765 | 73,633
Other assets | 72,488 | 73,585
Other non-current liabilities | (16,566) | (11,945)
Net deferred tax assets | $ 55,922 | $ 61,640

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