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Leases (Tables)

12 Months Ended

Sep. 30, 2021

Leases [Abstract]

Components of Operating Lease Costs

The components of our operating lease costs were as follows (in thousands):

		Year Ended September 30,
		2021				2020
Operating lease costs		$	37,929			$	40,116
Variable and short-term lease costs			6,708				11,277
Total lease costs		$	44,637			$	51,393

Schedule of Weighted Average Remaining Terms and Discount Rates for Operating Leases

The table below presents the weighted average remaining terms and discount rates for our operating leases as of September 30, 2021:

As of September 30, 2021
Weighted average remaining lease term		2.7 years
Weighted average discount rate			4.2	%

Schedule of Future Minimum Rental Payments under Operating Leases of Initial or Remaining Non-cancelable Lease Terms

The following table summarizes future minimum rental payments, primarily related to leased aircraft, required under operating leases that had initial or remaining non-cancelable lease terms as of September 30, 2021 (in thousands):

Periods Ending September 30,		Total Maturities
2022		$	34,556
2023			17,070
2024			15,418
2025			2,129
2026			796
Total lease payments			69,969
Less: imputed interest			(3,326	)
Amounts recorded in the consolidated balance sheet		$	66,643

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Schedule of weighted average remaining lease terms and discount rates for operating leases.

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- Definition

Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980

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Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

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