Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Assets and liabilities subject to fair value measurements
Carrying amount	$ 4,200,000	$ 4,200,000
Level 2
Assets and liabilities subject to fair value measurements
Fair value of long-term debt, including current maturities	4,000,000	4,100,000
Futures \| Recurring \| Commodity contract
Assets and liabilities subject to fair value measurements
Commodity futures - financial assets	130,910	8,925
Commodity futures - financial liabilities	67,063	64,896
Futures \| Recurring \| Level 1 \| Commodity contract
Assets and liabilities subject to fair value measurements
Commodity futures - financial assets
Commodity futures - financial liabilities
Futures \| Recurring \| Level 2 \| Commodity contract
Assets and liabilities subject to fair value measurements
Commodity futures - financial assets	130,910	8,925
Commodity futures - financial liabilities	67,063	64,896
Futures \| Recurring \| Level 3 \| Commodity contract
Assets and liabilities subject to fair value measurements
Commodity futures - financial assets
Commodity futures - financial liabilities

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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.

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

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