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Note 6 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Accrued Income Taxes, Current | $ 64,725 | $ 48,122
Deferred Tax Assets, Net | 524,000 | 533,500
Deferred Tax Assets, Valuation Allowance | 511,900 | $ 533,000
US Deferred Income Tax Expense (Benefit) | (16,200) |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount | 27,000 |
SPO [Member] |  |
Deferred Tax Assets, Net | 51,200 |
Deferred Tax Assets, Valuation Allowance | 51,200 |
Pillar Two Adjustments [Member] |  |
Accrued Income Taxes, Current | $ 11,000 |

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