Note 23 - Incentive Plans - Restricted Stock Activity (Details) - Restricted Stock [Member] - shares		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Restricted stock outstanding as of January 1, (in shares)		2,347,608	2,394,825	2,367,843
Granted (1) (in shares)	[1]	819,090	754,560	820,150
Vested (in shares)		(511,772)	(759,665)	(784,120)
Forfeited (in shares)		(48,956)	(42,112)	(9,048)
Restricted stock outstanding as of December 31, (in shares)		2,605,970	2,347,608	2,394,825

[1] The weighted-average grant date fair value for restricted stock issued during the years ended December 31, 2022, 2021 and 2020 were $24.27, $17.81 and $18.67, respectively.