Retirement Benefits (Tables)

3 Months Ended

Sep. 30, 2015

Compensation and Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Costs

The following table presents the components of net periodic benefit cost for the three months ended September 30, 2015 and 2014:

	Three Months Ended September 30,
	2015			2014
Service cost	$	1,434		$	1,023
Interest cost		1,727			1,724
Expected return on plan assets		(31	)		(66	)
Amortization of prior service cost		247			243
Amortization of net loss		1,315			948
Curtailments and Settlements		(92	)		105
Net periodic benefit cost	$	4,600		$	3,977