Note 13 - Income Taxes - Income Tax Expense (Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Domestic	$ 307,260	$ 146,055	$ 188,174
Foreign	6,423	5,668	1,349
Income before taxes	313,683	151,723	189,523
Current provision
Federal, Current	47,475	67,988	20,303
State, Current	10,759	6,706	4,648
Total Current	58,234	74,694	24,951
Deferred provision (benefit)
Federal, Deferred	13,809	(37,683)	20,925
State, Deferred	(631)	(1,254)	2,064
Foreign, Deferred	856	1,079
Provision (benefit) for deferred income tax expense	14,034	(37,858)	22,989
Provision (benefit) for income taxes	$ 72,268	$ 36,836	$ 47,940