Balance Sheet Information (Tables)

12 Months Ended

Sep. 30, 2022

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Summary of Certain Significant Amounts Included in Consolidated Balance Sheets

Certain significant amounts included in the Company's consolidated balance sheets as of September 30, 2022 and 2021, consisted of the following (in thousands):

	September 30,			September 30,
	2022			2021
Expendable parts and supplies, net:
Expendable parts and supplies	$	31,913		$	29,297
Less: obsolescence and other		(5,198	)		(4,830	)
	$	26,715		$	24,467
Prepaid expenses and other current assets:
Prepaid aviation insurance	$	2,618		$	2,171
Prepaid vendors		1,310		893
Prepaid other insurance		1,268			1,323
Lease Incentives		352			1,445
Other		1,068			1,053
	$	6,616		$	6,885
Property and equipment, net:
Aircraft and other flight equipment substantially pledged	$	1,260,143		$	1,611,544
Other equipment		5,577			4,934
Leasehold improvements		2,776			2,776
Vehicles		992			1,184
Building		777			699
Furniture and fixtures		298			300
Total property and equipment		1,270,563			1,621,437
Less: accumulated depreciation		(405,309	)		(469,546	)
	$	865,254		$	1,151,891
Other assets:
Investments in equity securities	$	15,178		$	25,149
Lease incentives		1,097			10,957
Other		15			15
	$	16,290		$	36,121
Other accrued expenses:
Accrued property taxes	$	5,866		$	8,783
Accrued interest		2,882			2,565
Accrued vacation		4,746			5,936
Accrued lodging		3,795			3,380
Accrued maintenance		1,453			1,580
Accrued liability on government payroll program		2,967			2,775
Accrued simulator costs		1,045		457
Accrued employee benefits		1,679		981
Accrued fleet operating expense		1,606		786
Short term lease incentive liability	97				3,318
Other		2,864			3,096
	$	29,000		$	33,657
Other noncurrent liabilities:
Warrant liabilities	$	25,225		$	21,964
Lease incentive obligations		1,050			6,358
Long term employee benefits		1,123			1,447
Long term liability on government payroll program	—				2,775
Other		1,821			2,047
	$	29,219		$	34,591