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Financial Instruments - Additional Information (Detail)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2024
USD ($)
MMBTU
Dec. 31, 2023
USD ($)
MMBTU
Derivative Instruments And Hedging Activities Disclosures [Line Items]    
Financial instruments with fair values | $ $ 0 $ 0
Natural Gas Purchase Commitments [Member] | Level 2 [Member]    
Derivative Instruments And Hedging Activities Disclosures [Line Items]    
Natural gas purchase commitments volume | MMBTU 0 0