Note 4 - Financing Arrangements - Outstanding Borrowings (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Less current portion of long-term debt	$ (699,435)	$ (500,000)
Total long-term debt	1,019,925	977,702
Senior Notes [Member]
Long-term debt	1,442,000	699,000
Revolving Credit Facility [Member]
Long-term debt	$ 277,300	$ 778,700

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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+ Details