Note F - Debt Obligations - Summary of Convertible Debt (Details) - Convertible Debt [Member] - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Aug. 14, 2023	Sep. 30, 2017
Principal Value December 31, 2023	$ 444,897	$ 454,225
Unamortized issuance cost	(9,328)
Convertible Senior Notes Due 2024 [Member]
Principal Value December 31, 2023	54,115	54,225	$ 204,500	$ 258,800
Unamortized issuance cost	(110)
Convertible Senior Notes Due2029 [Member]
Principal Value December 31, 2023	390,782	$ 400,000	$ 400,000
Unamortized issuance cost	$ (9,218)