Fair Value of Financial Instruments Fair Value Options Quantitative Disclosure (Details) - USD ($)	Mar. 31, 2025	Dec. 31, 2024
Low [Member]
Commodity Contracts
Electricity physical forwards	$ 17.00	$ 14.00
Natural gas financial swaps	1.84	1.86
Financial swaps - electricity	23.00	27.00
High [Member]
Commodity Contracts
Electricity physical forwards	92.81	99.68
Natural gas financial swaps	2.90	6.53
Financial swaps - electricity	100.00	110.00
Weighted Average [Member]
Commodity Contracts
Electricity physical forwards	55.63	59.43
Natural gas financial swaps	2.30	2.68
Financial swaps - electricity	59.54	70.55
Assets [Member]
Commodity Contracts
Electricity physical forwards	0	0
Natural gas financial swaps		0
Financial swaps - electricity	4,000,000	1,000,000
Total commodity contracts	4,000,000	1,000,000
Liabilities [Member]
Commodity Contracts
Electricity physical forwards	37,000,000	28,000,000
Natural gas financial swaps	4,000,000	4,000,000
Financial swaps - electricity	2,000,000	3,000,000
Total commodity contracts	$ 43,000,000	$ 35,000,000