Note 8 - Other Investments - Preferred Equity Investments - Income Statement Disclosures (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues, net	$ 1,364,585	$ 1,057,893	$ 1,158,884
Operating expenses	(971,140)	(731,765)	(760,515)
Depreciation and amortization	(395,320)	(288,955)	(277,879)
Interest expense	(204,133)	(186,904)	(177,395)
Other expense, net	19,810	4,119	10,985
Net income	849,696	1,002,877	413,561
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] | Preferred Equity Investments [Member]
Revenues, net	54,000	44,600	66,600
Operating expenses	(21,700)	(11,100)	(16,000)
Depreciation and amortization	(2,900)	(2,900)	(3,200)
Gain on sale of properties	0	200	13,600
Interest expense	(9,100)	(7,000)	(11,900)
Other expense, net	500	(4,000)	(7,900)
Net income	$ 19,800	$ 19,800	$ 41,200