Nature of Business (Details) customer in Millions	12 Months Ended
	Dec. 31, 2025 MMBTU customer GW	Jan. 30, 2026 facility state GW
Business Combination [Line Items]
Generation capacity (in MW) | GW	12
Generation capacity (MMBTU) annually | MMBTU	1,900
LS Power Portfolio | Subsequent Event
Business Combination [Line Items]
Generation capacity (in MW) | GW		13
Number of gas-fired facilities acquired | facility		18
States where entity is located | state		9
Residential Customer
Business Combination [Line Items]
Customers served	8
Retail Energy Customer
Business Combination [Line Items]
Customers served	6
Home
Business Combination [Line Items]
Customers served	2