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Nature of Business and Basis of Presentation - General (Details)	6 Months Ended
	Jun. 30, 2025 MMBTU customer GW
Business Combination [Line Items]
Generation capacity (in GW) | GW	12
Generation capacity (MMBTU) annually | MMBTU	1,800
Residential Customers
Business Combination [Line Items]
Customers	8,000,000
Residential Customers, Retail Energy
Business Combination [Line Items]
Customers	6,000,000
Residential Customers , Smart Home
Business Combination [Line Items]
Customers	2,000,000

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