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Fair Value of Financial Instruments Fair Value Options Quantitative Disclosure (Details) - USD ($) | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Low [Member] |  |
Commodity Contracts |  |
Electricity physical forwards | $ 38.04 | $ 14.00
Natural gas financial swaps | 1.86 | 1.86
Financial swaps - electricity | 40.92 | 27.00
High [Member] |  |
Commodity Contracts |  |
Electricity physical forwards | 119.00 | 99.68
Natural gas financial swaps | 3.70 | 6.53
Financial swaps - electricity | 119.00 | 110.00
Weighted Average [Member] |  |
Commodity Contracts |  |
Electricity physical forwards | 70.63 | 59.43
Natural gas financial swaps | 2.61 | 2.68
Financial swaps - electricity | 81.98 | 70.55
Assets [Member] |  |
Commodity Contracts |  |
Electricity physical forwards | 1,000,000 | 0
Natural gas financial swaps | 1,000,000 | 0
Financial swaps - electricity | 3,000,000 | 1,000,000
Total commodity contracts | 5,000,000 | 1,000,000
Liabilities [Member] |  |
Commodity Contracts |  |
Electricity physical forwards | 23,000,000 | 28,000,000
Natural gas financial swaps | 5,000,000 | 4,000,000
Financial swaps - electricity | 8,000,000 | 3,000,000
Total commodity contracts | $ 36,000,000 | $ 35,000,000

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