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Note 16 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Effective Income Tax Rate Reconciliation, Percent | 68.42% | 73.37% | 63.32% | 72.59%
Income Tax Expense (Benefit), Favorable (Unfavorable) Oil Price Adjustment | $ 500 | $ 1,200 | $ 2,700 | $ 4,300
Current Income Tax Expense (Benefit) |  | 20,400 | 24,700 | 26,100
Current Foreign Income Tax Expense (Benefit), Net Of Oil Price Adjustment |  | $ 19,200 | 22,000 | 21,800
Valuation Allowance, Deferred Tax Asset, Change in Amount, Discrete Item |  |  |  | $ 12,700
Unrecognized Tax Benefits | $ 0 |  | $ 0 |

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