Benefit Plans Schedule of Net Benefit Costs (Tables)

9 Months Ended

May 31, 2014

Schedule of Net Periodic Benefit Costs [Abstract]

Schedule of Net Benefit Costs of Assumptions Used [Table Text Block]

	Qualified Pension Benefits						Non-Qualified Pension Benefits				Other Benefits
	2014			2013			2014		2013		2014			2013
Components of net periodic benefit costs for the three months ended are as follows:	(Dollars in thousands)
Service cost	$	7,543		$	9,109		$	219	$	211	$	339		$	935
Interest cost	7,495			6,072			423		340		418			443
Expected return on assets	(11,910		)	(13,388		)	—		—		—			—
Prior service cost (credit) amortization	398			399			57		57		(30		)	(81		)
Actuarial (gain) loss amortization	4,566			6,500			250		270		(228		)	371
Transition amount amortization	—			—			—		—		—			73
Net periodic benefit cost	$	8,092		$	8,692		$	949	$	878	$	499		$	1,741
Components of net periodic benefit costs for the nine months ended are as follows:
Service cost	$	22,812		$	23,541		$	646	$	540	$	1,297		$	2,202
Interest cost	22,433			19,078			1,245		987		1,439			1,675
Expected return on assets	(35,726		)	(37,311		)	—		—		—			—
Prior service cost (credit) amortization	1,195			1,198			171		171		(90		)	(90		)
Actuarial (gain) loss amortization	13,655			16,961			718		692		(415		)	817
Transition amount amortization	—			—			—		—		—			422
Net periodic benefit cost	$	24,369		$	23,467		$	2,780	$	2,390	$	2,231		$	5,026