Postretirement and Other Employee Benefits (Tables)

9 Months Ended

May 31, 2012

Net Periodic Benefit Cost

The following table provides information about net periodic benefit cost for the pension plans during the three months and nine months ended May 31, 2012 and 2011 (in thousands):

	Three months ended						Nine months ended
	May 31, 2012			May 31, 2011			May 31, 2012			May 31, 2011
Service cost	$	370		$	376		$	1,060		$	1,136
Interest cost		1,986			1,441			5,609			4,259
Expected long-term return on plan assets		(1,650	)		(1,118	)		(4,524	)		(3,315	)
Amortization of prior service cost		(7	)		(6	)		(21	)		(19	)
Recognized actuarial loss		308			447			913			1,453
Curtailment gain		—			—			—			(1,874	)
Net periodic benefit cost	$	1,007		$	1,140		$	3,037		$	1,640