Note 13 - Income Taxes - Income Tax Expense (Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Domestic	$ 502,141	$ 307,260	$ 146,055
Foreign	7,186	6,423	5,668
Income before taxes	509,327	313,683	151,723
Current provision
Federal	93,942	47,475	67,988
State	16,516	10,759	6,706
Foreign	2,523
Total	112,981	58,234	74,694
Deferred provision (benefit)
Federal	7,975	13,809	(37,683)
State	(565)	(631)	(1,254)
Foreign	(3,149)	856	1,079
Total	4,261	14,034	(37,858)
Provision for income taxes	$ 117,242	$ 72,268	$ 36,836