Leases - Additional Information (Details)	3 Months Ended	12 Months Ended
Sep. 30, 2023 USD ($)	Sep. 30, 2023 USD ($)
Lessor, Lease, Description [Line Items]
Operating leases not yet commenced	$ 0	$ 0
Finance leases not yet commenced	$ 0	$ 0
Renewal term (up to)	9 years	9 years
AmeriGas OLP
Lessor, Lease, Description [Line Items]
Sale-leaseback transaction term	6 years
Cash proceeds	$ 32,000,000
Pre tax gain	$ 29,000,000
AmeriGas Propane \| Lease Liability Total \| Segment Concentration Risk
Lessor, Lease, Description [Line Items]
Risk percent		80.00%
Minimum \| Vehicles
Lessor, Lease, Description [Line Items]
Operating lease remaining lease term	1 year	1 year
Maximum \| Vehicles
Lessor, Lease, Description [Line Items]
Operating lease remaining lease term	10 years	10 years

Lessee Finance Lease Lease Non Yet Commenced

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Term of lessor's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of gain (loss) on sale and leaseback transaction from transfer of asset accounted for as sale.

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- Definition

Lease term for sale and leaseback transaction, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of sales-type lease revenue.

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