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Fair Values of Financial Instruments - Implied Market Rates of Interest (Details) - Valuation, Market Approach - Level 2 - Measurement Input, Implied Market Rate | Mar. 31, 2024 | Dec. 31, 2023
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3.95% Senior Notes Due 2028 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Long-term debt, measurement input | 0.0555 | 0.0579
5.15% Senior Notes Due 2029 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Long-term debt, measurement input | 0.0560 | 0.0610
7.15% Senior Notes Due 2033 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Long-term debt, measurement input | 0.0609 | 0.0628
Equipment Loans Due 2025 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Long-term debt, measurement input | 0.0567 | 0.0536

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Value of input used to measure long-term debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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