Note 7 - Debt, Credit Agreement and Leases - Debt Summary (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Line of Credit Facility [Line Items]
Less: current debt	$ 0	$ (33,617)
Senior Notes [Member]
Line of Credit Facility [Line Items]
Principal		531,525
Unamortized discount and issuance costs		(2,724)
Total debt		528,801
Less: current debt		(33,617)
Long-term debt		495,184
Senior Notes [Member] | The 2028 Senior Notes [Member]
Line of Credit Facility [Line Items]
Principal	263,000	475,000
Unamortized discount and issuance costs	(1,180)	(2,816)
Total debt		472,184
Less: current debt		0
Long-term debt	$ 261,820	472,184
Senior Notes [Member] | IQ Notes [Member]
Line of Credit Facility [Line Items]
Principal		33,525
Unamortized discount and issuance costs		92
Total debt		33,617
Less: current debt		(33,617)
Long-term debt		0
Senior Notes [Member] | Credit Agreement [Member]
Line of Credit Facility [Line Items]
Principal		23,000
Unamortized discount and issuance costs		0
Total debt		23,000
Less: current debt		0
Long-term debt		$ 23,000