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Note 8 - Income Taxes - Reconciliation of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Tax provision computed at U.S. statutory rate | $ 25,910 | $ 12,553 | $ (4,284)
Foreign taxes not offset in U.S. by foreign tax credits | 53,851 | 35,306 | (9,801)
Permanent differences | 778 | (703) | 97
Foreign tax credit expirations | 17,247 | 14,060 | 0
Increase/(decrease) in valuation allowance | (25,623) | (83,372) | 41,635
Other | (743) | 0 | 34
Total income tax expense (benefit) | $ 71,420 | $ (22,156) | $ 27,681

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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign tax credits adjustment. + References No definition available. + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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