Benefit Plans (Tables)

3 Months Ended

Sep. 30, 2012

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 September 30,	2012			2011			2012			2011
Components of net periodic cost:
Service cost	$	19		$	127		$	20		$	7
Interest cost	315			588			47			59
Expected return on plan assets	(101		)	(99		)
Recognized net actuarial loss (gain)	184			264			(13		)	(18		)
Amortization of prior service cost	21			185			27			35
Net periodic cost	$	438		$	1,065		$	81		$	83