Fair Value Measurements (Tables)

9 Months Ended

May 31, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements, Recurring and Nonrecurring

	May 31, 2018
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(Dollars in thousands)
Assets:
Commodity and freight derivatives	$	44,456	$	428,962	$	—	$	473,418
Foreign currency derivatives	—		9,298		—		9,298
Deferred compensation assets	38,765		—		—		38,765
Deferred purchase price receivable	—		—		464,516		464,516
Embedded derivative asset	—		23,145		—		23,145
Other assets	16,783		—		—		16,783
Total	$	100,004	$	461,405	$	464,516	$	1,025,925
Liabilities:
Commodity and freight derivatives	$	37,294	$	293,070	$	—	$	330,364
Foreign currency derivatives	—		23,084		—		23,084
Interest rate swap derivatives	3		8,847		—		8,850
Total	$	37,297	$	325,001	$	—	$	362,298

	August 31, 2017
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(Dollars in thousands)
Assets:
Commodity and freight derivatives	$	48,491	$	336,157	$	—	$	384,648
Foreign currency derivatives	—		8,771		—		8,771
Interest rate swap derivatives	—		9,978		—		9,978
Deferred compensation assets	52,414		—		—		52,414
Deferred purchase price receivable	—		—		548,602		548,602
Embedded derivative asset	—		25,533		—		25,533
Other assets	14,846		—		—		14,846
Total	$	115,751	$	380,439	$	548,602	$	1,044,792
Liabilities:
Commodity and freight derivatives	$	31,189	$	278,573	$	—	$	309,762
Foreign currency derivatives	—		19,931		—		19,931
Interest rate swap derivatives	—		707		—		707
Total	$	31,189	$	299,211	$	—	$	330,400