Retirement Benefit Plans (Tables)

6 Months Ended

Mar. 31, 2017

Compensation and Retirement Disclosure [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,
	2017			2016			2017			2016
Service cost	$	78		$	69		$	157		$	139
Interest cost	220			256			440			512
Expected return on plan assets	(404		)	(407		)	(809		)	(815		)
Amortization of net loss	214			210			429			420
Net periodic cost	$	108		$	128		$	217		$	256