Retirement Benefits

3 Months Ended

Sep. 30, 2012

Compensation and Retirement Disclosure [Abstract]

Retirement Benefits

Retirement benefits

Net pension benefit cost recognized included the following components:

	Three Months Ended September 30,
	2012			2011
Service cost	$	28,334		$	21,624
Interest cost	43,073			45,916
Expected return on plan assets	(49,638		)	(50,169		)
Amortization of prior service cost	3,488			3,484
Amortization of net actuarial loss	47,583			25,414
Amortization of initial net obligation (asset)	6			(15		)
Net pension benefit cost	$	72,846		$	46,254

Net postretirement benefit cost recognized included the following components:

	Three Months Ended September 30,
	2012		2011
Service cost	$	182	$	181
Interest cost	870		881
Net amortization and deferral and other	117		129
Net postretirement benefit cost	$	1,169	$	1,191