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Benefit Plans Schedule of Net Benefit Costs (Tables)

3 Months Ended

Nov. 30, 2018

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs of Assumptions Used

	Qualified Pension Benefits								Non-Qualified Pension Benefits								Other Benefits
	2018				2017				2018				2017				2018				2017
Components of net periodic benefit costs for the three months ended November 30 are as follows:	(Dollars in thousands)
Service cost	$	9,648			$	9,919			$	78			$	137			$	263			$	236
Interest cost	7,099				6,002				187				178				274				227
Expected return on assets	(11,242		)		(12,040		)		—				—				—				—
Prior service cost (credit) amortization	42				359				(19		)		8				(139		)		(141		)
Actuarial (gain) loss amortization	3,087				4,518				—				15				(407		)		(306		)
Net periodic benefit cost	$	8,634			$	8,758			$	246			$	338			$	(9	)		$	16

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- References

No definition available.

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- Definition

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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