Income Taxes Income Taxes (Tables)

3 Months Ended

Nov. 30, 2017

Income Tax Disclosure [Abstract]

Income Tax Effective Tax Rate [Table Text Block]

Comparative earnings before income taxes, income tax expense (benefit) and effective income tax rates are as follows (amounts in thousands):

	Three Months Ended November 30,
	2017			2016
Earnings before income taxes	$	6,830		$	1,967
Income tax expense (benefit)	1,604			(2,998		)
Effective income tax rate	23.5		%	(152.4		)%