Note 5 - Derivative Financial Instruments - Summary of the Effect of Derivatives on the Condensed Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Noncash derivative gain (loss), net	$ 38,098	$ (6,844)	$ 21,656	$ (19,402)
Derivative settlements, net	(2,300)	(3,976)	(64,143)	(5,014)
Derivative gain (loss), net	$ 35,798	$ (10,820)	$ (42,487)	$ (24,416)