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Derivative Activities - Additional Information (Detail)
$ in Millions
Jun. 30, 2024
USD ($)
Jun. 30, 2023
MMBTU
Derivatives Excluding Basis Swaps    
Derivative [Line Items]    
Derivative assets liabilities at fair value net $ 241.7  
Commodity | Natural Gas Basis Swaps    
Derivative [Line Items]    
Derivative assets liabilities at fair value net $ 13.9  
Volume Hedged | MMBTU   289,875,000