Note 4 - Financing Arrangements - Outstanding Borrowings (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Less current portion of long-term debt	$ 0	$ (699,859)
Total long-term debt	1,302,838	766,938
Senior Notes [Member]
Long-term debt	743,700	1,443,200
Revolving Credit Facility [Member]
Long-term debt	$ 559,100	$ 23,600

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

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+ Details