DEBT - Schedule of Standby Letters of Credit (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Mar. 31, 2026 |
Dec. 31, 2025 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|---|---|---|---|
| Line of Credit Facility [Line Items] | ||||||
| Reclamation/restoration requirements | $ 464.5 | $ 460.0 | $ 456.5 | $ 447.8 | $ 429.5 | $ 427.4 |
| Standby Letters of Credit | ||||||
| Line of Credit Facility [Line Items] | ||||||
| Risk management insurance | 5.2 | |||||
| Reclamation/restoration requirements | 14.4 | |||||
| Total standby letters of credit | $ 19.6 |
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- Definition The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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