Note 5 - Income (Loss) Per Common Share - Net (loss) income per common share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Notes To Financial Statements [Abstract]
Income from continuing operations	$ 117,876	$ 26,910	$ 282,529	$ 51,249
Income (loss) from discontinued operations	0	30,795	(183,681)	35,328
Preferred stock dividends	(132)	(138)	(264)	(276)
Net income applicable to common stockholders	$ 117,744	$ 57,567	$ 98,584	$ 86,301
Basic weighted average common shares	670,763	636,928	670,579	634,339
Dilutive units	5,123	2,811	5,286	2,652
Diluted weighted average common shares	675,886	639,739	675,865	636,991
Income from continuing operations	$ 0.18	$ 0.04	$ 0.42	$ 0.08
Income from discontinued operations	0	0.05	(0.27)	0.06
Basic earnings per common share	0.18	0.09	0.15	0.14
Income from discontinued operations	0.17	0.04	0.42	0.08
Income (loss) from discontinued operations	0	0.05	(0.27)	0.06
Diluted earnings per common share	$ 0.17	$ 0.09	$ 0.15	$ 0.14