Retirement Benefit Plans (Tables)

3 Months Ended

Dec. 31, 2017

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   December 31,
	2017			2016
Service cost	$	63		$	78
Interest cost	240			220
Expected return on plan assets	(402		)	(404		)
Amortization of net loss	161			216
Net periodic cost	$	62		$	110