Note 21 - Selected Quarterly Financial Data (Unaudited) - Summary of Selected Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues	$ 181,905	$ 178,595	$ 265,418	$ 237,577	$ 185,340	$ 179,744	$ 309,893	$ 329,219	$ 863,495	$ 1,004,196	$ 1,774,718
Total costs and expenses	250,949	243,002	258,393	268,171	240,610	267,564	320,632	401,643	1,020,516	1,230,449	1,755,968
Net loss	$ (66,483)	$ (84,473)	$ (19,640)	$ (18,267)	$ (85,231)	$ (86,091)	$ (101,650)	$ (55,433)	$ (188,863)	$ (328,405)	$ (30,143)
Loss per share (in dollars per share)	$ (0.09)	$ (0.11)	$ (0.03)	$ (0.02)	$ (0.11)	$ (0.11)	$ (0.14)	$ (0.08)	$ (0.25)	$ (0.46)	$ (0.05)