Note 7 - Long-term Leases - Lease Information and Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating lease costs	$ 35,669	$ 34,953	$ 36,051
Variable lease costs	6,289	5,549	3,887
Short-term lease costs	1,224	1,023	1,039
Total operating lease costs	$ 43,182	$ 41,525	$ 40,977