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Derivatives, Hedging Programs and Other Financial Instruments - Additional Information (Details) - USD ($)	Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Collateral posted for net derivatives							$ 0	$ 0
Cash collateral posted from customers							0
Scenario, Forecast \| Electricity
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Percent of Required Need, Coverage				15.00%	76.00%	92.00%
Scenario, Forecast \| Natural Gas
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Percent of Required Need, Coverage	25.00%	25.00%	83.00%	92.00%	95.00%	90.00%
Designated as Hedging Instrument \| Purchase
Derivative [Line Items]
Derivative net liability							$ 2,700,000	$ 7,200,000