Retirement Benefits (Tables)

6 Months Ended

Dec. 31, 2016

Pension Plans

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Defined Benefit Plans Disclosures

Net pension benefit cost recognized included the following components:

	Three Months Ended						Six Months Ended
	December 31,						December 31,
	2016			2015			2016			2015
Service cost	$	23,116		$	23,406		$	47,339		$	47,519
Interest cost	29,972			45,663			61,468			91,734
Special termination cost	—			7,088			—			7,088
Expected return on plan assets	(60,180		)	(55,566		)	(117,797		)	(111,215		)
Amortization of prior service cost	1,683			1,669			3,399			3,738
Amortization of net actuarial loss	54,325			42,299			105,752			85,268
Amortization of initial net obligation	5			4			10			8
Net pension benefit cost	$	48,921		$	64,563		$	100,171		$	124,140