Employee Benefit Plans (Tables)

6 Months Ended

Mar. 31, 2022

Retirement Benefits [Abstract]

Schedule of net benefit costs

The components of net periodic benefit cost for the plans were as follows:

	Three Months Ended March 31,				Six Months Ended March 31,
	2022		2021		2022		2021
Service cost	$	227	$	287	$	459	$	571
Interest cost	107		80		215		159
Expected return on plan assets	(129)		(87)		(261)		(174)
Amortization of actuarial losses	166		110		335		374
Pension expense for defined benefit plans	$	371	$	390	$	748	$	930