Derivatives and Risk Management - Schedule of Energy Commodity Derivative Volumes (Details) MWh in Thousands, MMBTU in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2026 MMBTU MWh	Dec. 31, 2025 MMBTU MWh
Physical Purchases [Member] \| Electric Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MWh	3
Year one \| MWh	0	6
Year two \| MWh	0	0
Year three \| MWh	0	0
Physical Purchases [Member] \| Gas Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MMBTU	14,374
Year one \| MMBTU	18,050	30,523
Year two \| MMBTU	7,923	14,558
Year three \| MMBTU	1,125	4,413
Financial Purchases [Member] \| Electric Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MWh	0
Year one \| MWh	0	0
Year two \| MWh	0	0
Year three \| MWh	0	0
Financial Purchases [Member] \| Gas Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MMBTU	16,323
Year one \| MMBTU	22,008	30,535
Year two \| MMBTU	10,263	14,443
Year three \| MMBTU	2,250	5,393
Physical Sales [Member] \| Electric Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MWh	256
Year one \| MWh	0	373
Year two \| MWh	0	0
Year three \| MWh	0	0
Physical Sales [Member] \| Gas Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MMBTU	669
Year one \| MMBTU	1,393	2,325
Year two \| MMBTU	1,013	1,393
Year three \| MMBTU	0	1,013
Financial Sales [Member] \| Electric Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MWh	135
Year one \| MWh	0	328
Year two \| MWh	0	0
Year three \| MWh	0	0
Financial Sales [Member] \| Gas Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MMBTU	230
Year one \| MMBTU	0	543
Year two \| MMBTU	0	0
Year three \| MMBTU	0	0

Derivatives and Risk Management - Schedule of Energy Commodity Derivative Volumes (Details) MWh in Thousands, MMBTU in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2026 MMBTU MWh	Dec. 31, 2025 MMBTU MWh
Physical Purchases [Member] \| Electric Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MWh	3
Year one \| MWh	0	6
Year two \| MWh	0	0
Year three \| MWh	0	0
Physical Purchases [Member] \| Gas Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MMBTU	14,374
Year one \| MMBTU	18,050	30,523
Year two \| MMBTU	7,923	14,558
Year three \| MMBTU	1,125	4,413
Financial Purchases [Member] \| Electric Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MWh	0
Year one \| MWh	0	0
Year two \| MWh	0	0
Year three \| MWh	0	0
Financial Purchases [Member] \| Gas Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MMBTU	16,323
Year one \| MMBTU	22,008	30,535
Year two \| MMBTU	10,263	14,443
Year three \| MMBTU	2,250	5,393
Physical Sales [Member] \| Electric Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MWh	256
Year one \| MWh	0	373
Year two \| MWh	0	0
Year three \| MWh	0	0
Physical Sales [Member] \| Gas Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MMBTU	669
Year one \| MMBTU	1,393	2,325
Year two \| MMBTU	1,013	1,393
Year three \| MMBTU	0	1,013
Financial Sales [Member] \| Electric Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MWh	135
Year one \| MWh	0	328
Year two \| MWh	0	0
Year three \| MWh	0	0
Financial Sales [Member] \| Gas Derivative [Member]
Energy Commodity Derivative Volumes [Line Items]
Remainder 2026 \| MMBTU	230
Year one \| MMBTU	0	543
Year two \| MMBTU	0	0
Year three \| MMBTU	0	0