Retirement Benefit Plans (Tables)

6 Months Ended

Mar. 31, 2019

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   March 31,						Six Months Ended   March 31,
	2019			2018			2019			2018
Service cost	$	75		$	63		$	149		$	126
Interest cost	264			239			528			479
Expected return on plan assets	(393		)	(401		)	(787		)	(803		)
Amortization of net loss	107			161			215			323
Net periodic cost	$	53		$	62		$	105		$	125