Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Nov. 30, 2016

Finite-Lived Intangible Assets [Line Items]

Schedule of Goodwill [Table Text Block]

	Energy		Ag			Corporate and Other			Total
	(Dollars in thousands)
Balances, August 31, 2016	$	552	$	148,916		$	10,946		$	160,414
Effect of foreign currency translation adjustments	—		(1,291		)	—			(1,291		)
Other	—		—			(372		)	(372		)
Balances, November 30, 2016	$	552	$	147,625		$	10,574		$	158,751

Schedule of Intangible Assets and Goodwill [Table Text Block]

	November 30, 2016							August 31, 2016
	Carrying Amount		Accumulated Amortization			Net		Carrying Amount		Accumulated Amortization			Net
	(Dollars in thousands)
Customer lists	$	48,818	$	(13,039	)	$	35,779	$	51,554	$	(15,550	)	$	36,004
Trademarks and other intangible assets	31,567		(23,869		)	7,698		35,015		(26,253		)	8,762
Total intangible assets	$	80,385	$	(36,908	)	$	43,477	$	86,569	$	(41,803	)	$	44,766

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

	(Dollars in thousands)
Year 1	$	3,906
Year 2	3,885
Year 3	3,862
Year 4	3,516
Year 5	3,455