Balance Sheet Information (Tables)

3 Months Ended

Dec. 31, 2020

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Summary of Certain Significant Amounts Included in Condensed Consolidated Balance Sheet

Certain significant amounts included in the Company's condensed consolidated balance sheet as of December 31, 2020 and September 30, 2020, consisted of the following (in thousands):

	December 31,			September 30,
	2020			2020
Expendable parts and supplies, net:
Expendable parts and supplies	$	27,347		$	27,431
Less: obsolescence and other		(4,587	)		(4,460	)
	$	22,760		$	22,971

Prepaid expenses and other current assets:
Deferred offering and reimbursed costs	$	1,129		$	1,261
Other		11,768			14,806
	$	12,897		$	16,067
Property and equipment, net:
Aircraft and other flight equipment substantially pledged	$	1,597,394		$	1,596,174
Other equipment		5,176			5,147
Leasehold improvements		2,763			2,763
Vehicles		995			1,032
Building		699			699
Furniture and fixtures		302			302
Total property and equipment		1,607,329			1,606,117
Less: accumulated depreciation		(413,268	)		(393,702	)
	$	1,194,061		$	1,212,415

Other accrued expenses:
Accrued property taxes	$	12,690		$	11,354
Accrued interest		5,149			3,268
Accrued vacation		6,143			5,975
Other		13,599			24,881
	$	37,581		$	45,478