Retirement Benefit Plans (Tables)

6 Months Ended

Mar. 31, 2015

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,
	2015			2014			2015			2014
Service cost	$	37		$	30		$	73		$	61
Interest cost	244			250			487			501
Expected return on plan assets	(418		)	(393		)	(835		)	(786		)
Amortization of net loss	136			151			273			301
Settlement cost	—			50			—			125
Net periodic cost	$	(1	)	$	88		$	(2	)	$	202