Note 27 - Earnings Per Share - Reconciliation of Earnings (Loss) and the Weighted Average Number of Shares (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net income available to the Company's common shareholders		$ 818,643	$ 975,417	$ 339,988
Change in estimated redemption value of redeemable noncontrolling interests		2,304	2,160	0
Earnings attributable to participating securities		(5,346)	(6,347)	(2,599)
Net income available to the Company’s common shareholders for basic earnings per share		815,601	971,230	337,389
Distributions on convertible units		3,087	161	30
Net income available to the Company’s common shareholders for diluted earnings per share		$ 818,688	$ 971,391	$ 337,419
Weighted average common shares outstanding – basic (in shares)		506,248	429,950	420,370
Equity awards (in shares)	[1]	2,422	1,475	1,365
Assumed conversion of convertible units (in shares)	[1]	2,715	208	64
Weighted average common shares outstanding – diluted (in shares)	[1]	511,385	431,633	421,799
Basic earnings per share (in dollars per share)		$ 1.61	$ 2.26	$ 0.80
Diluted earnings per share (in dollars per share)		$ 1.60	$ 2.25	$ 0.80

[1] The effect of the assumed conversion of certain convertible units had an anti-dilutive effect upon the calculation of Net income/(loss) available to the Company’s common shareholders per share. Accordingly, the impact of such conversions has not been included in the determination of diluted earnings per share calculations. Additionally, there were 0.5 million and 1.2 million stock options that were not dilutive as of September 30, 2021 and 2020, respectively, and 2.5 million shares of restricted stock that were not dilutive for the three months ended September 30, 2020.