Commitments and Contingencies (Details)		6 Months Ended
Commitments and Contingencies (Details)	Jan. 27, 2024 incident fatality	Mar. 31, 2026 MMcf	Dec. 02, 2024 fatality
National Transportation Safety Board \| Jackson, Mississippi
Long-term Purchase Commitment [Line Items]
Number of incidents investigated that occurred during period \| incident	2
Number of fatalities under investigation \| fatality	1
National Transportation Safety Board \| Avondale, Louisiana
Long-term Purchase Commitment [Line Items]
Number of fatalities under investigation \| fatality			1
Supply Commitment
Long-term Purchase Commitment [Line Items]
Contract term (in years)		1 year
Supply Commitment \| Short-term Contract with Customer
Long-term Purchase Commitment [Line Items]
Contract term (in years)		1 year
Purchase commitment volume		80,800
Supply Commitment \| Long-term Contract with Customer Within Two To Three Years
Long-term Purchase Commitment [Line Items]
Purchase commitment volume		67,400
Supply Commitment \| Long-term Contract with Customer Within Two To Three Years \| Minimum
Long-term Purchase Commitment [Line Items]
Contract term (in years)		2 years
Supply Commitment \| Long-term Contract with Customer Within Two To Three Years \| Maximum
Long-term Purchase Commitment [Line Items]
Contract term (in years)		3 years
Supply Commitment \| Fixed-Price Contracts
Long-term Purchase Commitment [Line Items]
Purchase commitment volume		0