Leases - Narrative (Details) - USD ($)	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Lessee, Lease, Description [Line Items]
Weighted average remaining lease term	6 years 1 month 6 days	6 years
Weighted average discount rate	5.48%	3.92%
Cash paid for operating liabilities	$ 9,700,000	$ 5,700,000
Right of use asset in exchange for new lease liability	$ 0	$ 0
Buildings and Property | Minimum
Lessee, Lease, Description [Line Items]
Non-cancelable lease term	1 month
Operating lease renewal term	1 year
Buildings and Property | Maximum
Lessee, Lease, Description [Line Items]
Non-cancelable lease term	16 years
Operating lease renewal term	18 years
Drilling Rigs | Maximum
Lessee, Lease, Description [Line Items]
Non-cancelable lease term	1 year
Compressor Equipment | Minimum
Lessee, Lease, Description [Line Items]
Non-cancelable lease term	9 months
Compressor Equipment | Maximum
Lessee, Lease, Description [Line Items]
Non-cancelable lease term	5 years