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Note 15 - Income Taxes - Reconciliation of Statutory and Effective Tax Rates (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Earnings from continuing operations, before income tax expense $ 199,060 $ 409,438 $ 290,300
Tax provision at the U.S. federal statutory rate $ 41,803 $ 85,982 $ 60,963
Tax provision at the U.S. federal statutory rate, percent 21.00% 21.00% 21.00%
Effect of cross-border tax laws $ (1,857) $ (974) $ 4,180
Effect of cross-border tax laws, percent (0.90%) (0.20%) 1.40%
Research and Development Credit $ (7,252) $ (5,533) $ (7,361)
Research and Development Credit, percent (3.60%) (1.40%) (2.50%)
Other Credits $ (310) $ (485) $ (1,403)
Other Credits, percent (0.20%) (0.10%) (0.50%)
Changes in valuation allowances $ 0 $ 0 $ 0
Changes in valuation allowances, percent 0.00% 0.00% 0.00%
Share-based compensation expense (benefit) $ 7,584 $ (4,720) $ (1,102)
Share-based compensation expense (benefit), percent 3.80% (1.20%) (0.40%)
Nondeductible U.S. compensation expense $ 1,003 $ 4,369 $ 3,648
Nondeductible U.S. compensation expense, percent 0.50% 1.10% 1.30%
Worthless Stock Deduction $ (6,463) $ 0 $ 0
Worthless Stock Deduction, percent (3.20%) 0.00% 0.00%
Effect of changes in tax laws or rates enacted in current period $ 0 $ 0 $ 0
Effect of changes in tax laws or rates enacted in current period, percent 0.00% 0.00% 0.00%
Other $ 870 $ (2,279) $ 3,350
Other, percent 0.40% (0.60%) 1.20%
Foreign Tax Effects $ (1,329) $ 2,683 $ 1,288
Foreign Tax Effects, percent (0.70%) 0.70% 0.40%
State and local income tax, net of federal income tax benefit (1) [1] $ 1,837 $ 11,452 $ 7,151
State and local income tax, net of federal income tax benefit (1), percent [1] 0.90% 2.80% 2.50%
Changes in unrecognized tax benefits $ 1,820 $ 1,965 $ 2,466
Changes in unrecognized tax benefits, percent 0.90% 0.50% 0.80%
Income tax expense $ 37,706 $ 92,460 $ 73,180
Income tax expense, percent 18.90% 22.60% 25.20%
[1] During the year ended December 31, 2025, state taxes and credits in South Carolina, Wisconsin, California, Illinois, Pennsylvania, New York, Georgia, Michigan, New Jersey, Florida, Massachusetts, Texas, Indiana, Maine, Connecticut comprised greater than 50% of the tax effect in this category.