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Revenues - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Revenues - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Typical length of contract	Electricity and natural gas products may be sold as fixed-price or variable-price products. The typical length of a contract to provide electricity and/or natural gas is 12 months.
Electric and Gas Revenue
Disaggregation of Revenue [Line Items]
Excise and sales taxes	$ 0.3	$ 0.3
Cost of Services Energy Services
Disaggregation of Revenue [Line Items]
Excise and sales taxes	$ 1.4	$ 1.3

- 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.

+ References + Details