Note 5 - Long-term Debt - Early Extinguishment of Debt (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Loss on early extinguishments and modifications of debt	$ 16,509	$ 65,475	$ 19,809	$ 65,475
Senior Note 6.375% Due 2026 [Member] | Premium [Member]
Loss on early extinguishments and modifications of debt	0	23,910	0	23,910
Senior Note 6.375% Due 2026 [Member] | Deferred Finance Charges [Member]
Loss on early extinguishments and modifications of debt	0	6,370	0	6,370
Senior Notes 6.000% Due 2026 [Member] | Premium [Member]
Loss on early extinguishments and modifications of debt	0	27,953	0	27,953
Senior Notes 6.000% Due 2026 [Member] | Deferred Finance Charges [Member]
Loss on early extinguishments and modifications of debt	0	7,242	0	7,242
Senior Notes 8.625% Due 2025 [Member] | Premium [Member]
Loss on early extinguishments and modifications of debt	12,939	0	12,939	0
Senior Notes 8.625% Due 2025 [Member] | Deferred Finance Charges [Member]
Loss on early extinguishments and modifications of debt	3,570	0	3,570	0
Bank Credit Facility [Member]
Loss on early extinguishments and modifications of debt	$ 0	$ 0	$ 3,300	$ 0