Note 13 - Income Taxes - Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income taxes at the federal statutory rate	$ 106,959	$ 65,694	$ 31,862
State income taxes, net of federal benefit	12,708	7,874	4,487
Tax effect of permanent differences	(488)	(2,502)	283
Foreign tax rate differential	(2,134)	(313)	(111)
Other, net	197	1,515	315
Provision for income taxes	$ 117,242	$ 72,268	$ 36,836

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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