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Note 11 - Long-term Debt - Long-term Debt and Convertible Debentures (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
3.84% Senior Notes | $ 60,000 | $ 90,000
Capital leases maturing at various dates through 2028 | 20,048 | 15,334
Other long-term debt maturing at various dates up to 2023 | 0 | 457
Long-Term Debt and Lease Obligation, Including Current Maturities | 1,182,107 | 734,463
Less: current portion | 37,132 | 35,665
Long-term debt - non-current | 1,144,975 | 698,798
Private Placement 4.53% Notes [Member] |  |
Debt instrument, carrying amount | 60,000 | 60,000
Revolving Credit Facility [Member] |  |
Debt instrument, carrying amount | $ 1,042,059 | $ 568,672

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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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