Electric Operating Revenues - Narrative (Details) |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
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Sep. 30, 2026
USD ($)
utility
|
Sep. 30, 2025
USD ($)
|
Sep. 30, 2026
USD ($)
utility
|
Sep. 30, 2025
USD ($)
|
Dec. 31, 2025
USD ($)
|
|
| Disaggregation of Revenue [Line Items] | |||||
| Number of regulated utilities | utility | 2 | 2 | |||
| Other receivables, allowance for credit loss, period increase | $ 0 | $ 0 | $ 0 | $ 0 | |
| Contract assets | 48,300,000 | 48,300,000 | $ 41,300,000 | ||
| PNM | |||||
| Disaggregation of Revenue [Line Items] | |||||
| Accounts receivable | $ 163,000,000.0 | $ 163,000,000.0 | $ 115,900,000 | ||
| X | ||||||||||
- Definition Number Of Regulated Utilities No definition available.
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- Definition Other Receivables, Allowance For Credit Loss, Period Increase (Decrease) No definition available.
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| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of the asset arising from commodity contracts such as futures contracts tied to the movement of a particular commodity, which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- 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/2003/role/disclosureRef
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| X | ||||||||||
- Details
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