Balance Sheet Information

3 Months Ended

Dec. 31, 2020

Organization Consolidation And Presentation Of Financial Statements [Abstract]

6.	Balance Sheet Information

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

The Company records impairment charges on long-lived assets used in operations when events and circumstances indicate that the assets may be impaired, the undiscounted cash flows estimated to be generated by those assets are less than the carrying amount of those assets, and the net book value of the assets exceeds their estimated fair value. The Company has assessed whether any impairment of its long-lived assets existed and has determined that no charges were deemed necessary under applicable accounting standards as of December 31, 2020. The Company’s assumptions about future conditions important to its assessment of potential impairment of its long-lived assets, including the impact of the COVID-19 pandemic to its business, are subject to uncertainty, and the Company will continue to monitor these conditions in future periods as new information becomes available, and will update its analyses accordingly.

Depreciation expense totaled approximately $20.2 million and $20.2 million for the three months ended December 31, 2020 and 2019, respectively.