Derivative Activities - Derivative Volumes Hedged and Average Hedge Prices (Parenthetical) (Detail) - Swaptions	9 Months Ended
	Sep. 30, 2024 MmbtuPerDay $ / MMBTU
2026 Commodity Contract
Derivative [Line Items]
Volume Hedged | MmbtuPerDay	20,000
Weighted average price of hedge | $ / MMBTU	4.05
Expiration of derivative non monetary notional amount	Oct. 31, 2024
2027 Commodity Contract
Derivative [Line Items]
Volume Hedged | MmbtuPerDay	30,000
Weighted average price of hedge | $ / MMBTU	4.1
Expiration of derivative non monetary notional amount	Oct. 31, 2024