Benefit Plans (Tables)

6 Months Ended

Dec. 31, 2015

Compensation and Retirement Disclosure [Abstract]

Net periodic costs

The following table provides summary disclosures of the net periodic postemployment costs recognized for the Company’s postemployment benefit plans:

	Pension Benefits						Retiree Health Care Benefits
Three Months Ended December 31,	2015			2014			2015			2014
Components of net periodic cost:
Service cost	$	23		$	24		$	6		$	13
Interest cost	216			224			19			24
Expected return on plan assets	(123		)	(124		)	—			—
Recognized net actuarial (gain) loss	229			140			(53		)	(22		)
Amortization of prior service cost	21			22			(68		)	(68		)
Net periodic cost	$	366		$	286		$	(96	)	$	(53	)

	Pension Benefits						Retiree Health Care Benefits
Six Months Ended December 31,	2015			2014			2015			2014
Components of net periodic cost:
Service cost	$	46		$	48		$	12		$	26
Interest cost	432			448			38			48
Expected return on plan assets	(246		)	(248		)	—			—
Recognized net actuarial loss (gain)	457			280			(106		)	(44		)
Amortization of prior service cost	43			44			(136		)	(136		)
Net periodic cost	$	732		$	572		$	(192	)	$	(106	)