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Commitments and Contingencies - San Juan County Decommissioning Ordinance (Details) - San Juan Generating Station - Coal-Fired Electricity Generating Facility Demolition And Remediation Ordinance - Public Service Company of New Mexico - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2024	Sep. 30, 2022	Nov. 09, 2021
Public Utilities, Commitments And Contingencies [Line Items]
Initial funding requirement	$ 14.7	$ 7.0
Surety bond				$ 46.0
Decrease in decommissioning obligation			$ 21.1

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- Definition

Loss Contingency, Decrease In Decommissioning Obligation

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- Definition

Loss Contingency, Surety Bond

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- Definition

Public Utilities, Commitments And Contingencies [Line Items]

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Public Utilities, Initial Funding Requirement

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