OTHER DEFERRED CHARGES (Details) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Deferred Costs [Abstract] | ||
| Preliminary surveys and investigations | $ 12,527 | $ 12,988 |
| Advances to operating agents of jointly owned facilities | 10,919 | 11,210 |
| Lease right-of-use assets | 10,405 | 10,955 |
| Financial asset - reclamation | 17,638 | 17,027 |
| Other | 3,680 | 6,366 |
| Total other deferred charges | $ 55,169 | $ 58,546 |
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- Definition Deferred Costs, Reclamation No definition available.
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- Definition For an unclassified balance sheet, amounts due from the operating agent of the entity in which the reporting entity shares joint control with another party or group. No definition available.
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- Definition Lease, Right-Of-Use Asset No definition available.
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- Definition Expenditures for preliminary surveys, plans and investigations for the purpose of determining the feasibility of contemplated generation and transmission projects which will be amortized over the life of the project. No definition available.
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- References No definition available.
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- Definition The carrying amount of deferred costs. No definition available.
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- Definition Net amount of other deferred costs capitalized at the end of the reporting period. Does not include deferred finance costs or deferred acquisition costs of insurance companies. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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