Employee Benefit Plans (Tables)

9 Months Ended

Jun. 30, 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 June 30,				Nine Months Ended June 30,
	2022		2021		2022		2021
Service cost	$	215	$	287	$	674	$	858
Interest cost	100		81		315		240
Expected return on plan assets	(122)		(88)		(383)		(262)
Amortization of actuarial losses	156		266		491		640
Pension expense for defined benefit plans	$	349	$	546	$	1,097	$	1,476