Retirement Benefit Plans (Tables)

9 Months Ended

Jun. 30, 2021

Retirement Benefits [Abstract]

Schedule of Components of Net Periodic Benefit Cost

The components of net periodic benefit cost of the Company’s defined benefit plans are as follows:

	Three Months Ended June 30,				Nine Months Ended June 30,
	2021		2020		2021		2020
Service cost	$	26	$	85	$	78	$	255
Interest cost	175		208		525		624
Expected return on plan assets	(355)		(363)		(1,066)		(1,090)
Amortization of net loss	211		188		634		564
Net periodic cost	$	57	$	118	$	171	$	353