Postretirement and Other Employee Benefits (Tables)

6 Months Ended

Feb. 28, 2014

Compensation And Retirement Disclosure [Abstract]

Net Periodic Benefit Cost for Pension Plans

The following table provides information about net periodic benefit cost for the pension plans during the three months and six months ended February 28, 2014 and 2013 (in thousands):

	Three months ended						Six months ended
	February 28, 2014			February 28, 2013			February 28, 2014			February 28, 2013
Service cost	$	312		$	437		$	621		$	879
Interest cost		1,703			1,518			3,368			3,044
Expected long-term return on plan assets		(1,539	)		(1,312	)		(3,038	)		(2,635	)
Amortization of prior service cost		(62	)		(7	)		(123	)		(13	)
Recognized actuarial loss		659			627			1,309			1,249
Net periodic benefit cost	$	1,073		$	1,263		$	2,137		$	2,524