Employee Benefit Plans

9 Months Ended

Jun. 30, 2021

Retirement Benefits [Abstract]

Employee benefit plans

Employee Benefit Plans

The Company maintains multiple employee benefit plans.

Certain of the Company’s employees in the UK were participants in a Siemens defined benefit plan established for employees of a UK-based operation acquired by Siemens in 2004. The plan was frozen with respect to future service credits for active employees, however the benefit formula recognized future compensation increases. The Company

agreed to establish a replacement defined benefit plan, with the assets of the Siemens scheme transferring to the new scheme on April 1, 2015.

The Company’s employees in Germany also participate in a defined benefit plan. Assets equaling the plan’s accumulated benefit obligation were transferred to a German defined benefit plan sponsored by the Company upon the acquisition of EWT from Siemens. The German entity also sponsors a defined benefit plan for a small group of employees located in France.

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

	Three Months Ended June 30,				Nine Months Ended June 30,
	2021		2020		2021		2020
Service cost	$	287	$	259	$	858	$	779
Interest cost	81		67		240		203
Expected return on plan assets	(88)		(30)		(262)		(89)
Amortization of actuarial losses	266		235		640		706
Pension expense for defined benefit plans	$	546	$	531	$	1,476	$	1,599

The components of pension expense, other than the service cost component which is included in General and administrative expense, are included in the line item Other operating expense in the Unaudited Consolidated Statements of Operations.