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Derivatives - Nonmonetary Notional Amounts (Details) - Natural Gas Price Swaps: October 2022 - March 2023
9 Months Ended
Sep. 30, 2022
MMBTU
$ / Unit
Derivative [Line Items]  
Notional (MMBtu) | MMBTU 2,088,000
Weighted average fixed price per unit (in dollars per unit) | $ / Unit 8.39