Note 7 - Long-term Debt - Long-term Debt (Details) - USD ($) $ in Thousands		Mar. 31, 2023	Dec. 31, 2022
Discounts, net (a)	[1]	$ (22,796)	$ (27,086)
Debt issuance costs, net (b)	[2]	(11,440)	(13,565)
Total debt		860,764	704,349
Less current portion of long-term debt, net		(215,295)	0
Long-term debt, net		645,469	704,349
Senior Unsecured Notes Due 2024 [Member]
Credit Agreement due 2024		225,000	225,000
Discounts, net (a)		(34,800)
Revolving Credit Facility [Member]
Credit Agreement due 2024		420,000	270,000
The 10.625% Senior Notes [Member]
Credit Agreement due 2024		$ 250,000	$ 250,000

[1] Discounts as of March 31, 2023 and December 31, 2022 consisted of $34.8 million and $34.8 million, respectively, in discounts less accumulated amortization of $12.0 million and $7.7 million, respectively.

[2] Debt issuance costs as of March 31, 2023 and December 31, 2022 consisted of $20.2 million and $19.7 million, respectively, in costs less accumulated amortization of $8.8 million and $6.1 million, respectively.