Note 16 - Incentive Plans - Performance Shares Activity (Details) - Performance Shares [Member] - shares		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Performance share awards outstanding as of January 1, (in shares)		989,860	1,004,040
Granted (1) (in shares)	[1]	377,690	531,200
Vested (2) (in shares)	[2]	(458,660)	(545,380)
Performance share awards outstanding as of March 31, (in shares)		908,890	989,860

[1] The weighted-average grant date fair value for performance shares issued during the three months ended March 31, 2024 and 2023 were $18.14 and $42.61, respectively.

[2] For the three months ended March 31, 2024, and 2023, the corresponding common stock equivalent of these vested awards were 970,232 and 998,238 shares, respectively.