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Leases - Additional Information (Detail) $ in Thousands	3 Months Ended
	Dec. 31, 2024 USD ($) AirCraft	Dec. 31, 2023 USD ($)
Lessee, Lease, Description [Line Items]
Number of leased aircraft | AirCraft	24
Aggregate rental expense under all operating aircraft, equipment and facility leases | $	$ 3,269	$ 7,969
Weighted average remaining lease term Operating leases	6 years 6 months
Weighted average discount rate Operating leases	6.00%

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- Definition

Number of leased aircraft.

+ References

No definition available.

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X

- Definition

Amount of lease cost recognized by lessee for lease contract.

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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

Weighted average discount rate for operating lease calculated at point in time.

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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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