Fair Value Measurements (Tables)

12 Months Ended

Sep. 30, 2023

Fair Value Measurements

Schedule of company's fair value hierarchy for its financial assets and liabilities measured at fair value on a recurring basis

	September 30, 2022 Fair Value Measurements
	at Reporting Date Using:
	Level 1		Level 2		Level 3		NAV		Total
Assets:
Pension plan assets	$	15,926	$	158,582	$	—	$	43,813	$	218,321
Total fair value	$	15,926	$	158,582	$	—	$	43,813	$	218,321

	September 30, 2023 Fair Value Measurements
	at Reporting Date Using:
	Level 1		Level 2		Level 3		NAV		Total
Assets:
Pension plan assets	$	32,155	$	154,686	$	—	$	33,130	$	219,971
Total fair value	$	32,155	$	154,686	$	—	$	33,130	$	219,971