Benefit Plans (Tables)

6 Months Ended

Dec. 31, 2011

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,	2011			2010			2011			2010
Components of net periodic cost:
Service cost	$	127		$	115		$	8		$	10
Interest cost	588			564			59			59
Expected return on plan assets	(99		)	(96		)
Recognized net actuarial loss (gain)	265			362			(18		)	(21		)
Amortization of prior service cost	185			178			35			35
Curtailment loss	3,117
Net periodic cost	$	4,183		$	1,123		$	84		$	83

	Pension Benefits						Retiree Health Care Benefits
Six Months Ended December 31,	2011			2010			2011			2010
Components of net periodic cost:
Service cost	$	254		$	230		$	15		$	20
Interest cost	1,176			1,129			118			118
Expected return on plan assets	(198		)	(192		)
Recognized net actuarial loss (gain)	529			724			(36		)	(42		)
Amortization of prior service cost	370			355			70			69
Curtailment loss	3,117
Net periodic cost	$	5,248		$	2,246		$	167		$	165