Note 9 - Debt, Credit Facility and Leases - Debt Summary (Details) $ in Thousands, $ in Millions	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jul. 09, 2020 CAD ($)
Debt Instrument [Line Items]
Less: current debt	$ (33,617)	$ 0
Senior Notes [Member]
Debt Instrument [Line Items]
Principal	531,525	639,473
Unamortized discount/premium and issuance costs	(2,724)	(3,473)
Total debt	528,801
Long-term debt	495,184	636,000
Less: current debt	(33,617)
Senior Notes [Member] | The 2028 Senior Notes [Member]
Debt Instrument [Line Items]
Principal	475,000	475,000
Unamortized discount/premium and issuance costs	(2,816)	(3,730)
Total debt	472,184
Long-term debt	472,184	471,270
Less: current debt	0
Senior Notes [Member] | Credit Agreement [Member]
Debt Instrument [Line Items]
Principal	23,000	128,000
Unamortized discount/premium and issuance costs	0	0
Total debt	23,000
Long-term debt	23,000	128,000
Less: current debt	0
Senior Notes [Member] | IQ Notes [Member]
Debt Instrument [Line Items]
Principal	33,525	36,473
Unamortized discount/premium and issuance costs	92	257
Total debt	33,617
Long-term debt	0	$ 36,730	$ 48.2
Less: current debt	$ (33,617)