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Income Taxes Income Taxes (Tables)
3 Months Ended
Nov. 30, 2019
Income Tax Disclosure [Abstract]  
Income Tax Effective Tax Rate [Table Text Block]
 
Three Months Ended November 30,
 
2019
 
2018
Earnings (loss) from continuing operations before income tax expense
$
7,322

 
$
(16,357
)
Income tax expense
950

 
66

Effective income tax rate
13.0
%
 
(0.4
)%