Note 7 - Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Balance, total	$ 249,345
Issuance of 3.75% 2029 convertible notes, debt issuance cost	(13,385)	$ 0
Amortization of debt issuance cost	1,328	$ 908
Balance, total	440,974
The 2029 Convertible 144A Notes [Member]
Balance	0
Balance, embedded conversion option	0
Balance, discount	0
Balance, debt issuance cost	0
Balance, total	0
Issuance of 3.75% 2029 Convertible Notes	301,054
Issuance of 3.75% 2029 convertible notes, embedded conversion option	125,620
Issuance of 3.75% 2029 convertible notes, discount	(125,620)
Issuance of 3.75% 2029 convertible notes, debt issuance cost	(8,562)
Issuance of 3.75% 2029 convertible notes, total	292,492
Amortization of debt discount	12,585
Amortization of debt issuance cost	1,236
Amortization of debt discount and debt issuance costs, total	13,821
Change in fair value of embedded derivative	26,250
Change in fair value of embedded derivative, total	26,250
Reclassification of embedded derivative to equity	(151,870)
Repurchase	(3,500)
Repurchase	1,338
Repurchase	114
Repurchase	(2,048)
Balance	297,554
Balance, embedded conversion option	0
Balance, discount	(111,697)
Balance, debt issuance cost	(7,212)
Balance, total	$ 178,645