Note 6 - Income Taxes - Current and Deferred Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Federal	$ 170,563	$ 244,770	$ 106,004
State and local	7,384	25,328	35,030
Foreign	5,827	8,380	0
Current Income Tax Expense (Benefit)	183,774	278,478	141,034
Federal	(2,541)	(88,016)	66,000
State and local	14,597	(1,832)	(434)
Deferred Income Tax Expense (Benefit)	12,056	(89,848)	65,566
Total tax expense/(benefit)	$ 195,830	$ 188,630	$ 206,600