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Basis of Presentation Schedule of Accumulated Other Comprehensive Income (Loss) (Tables)
9 Months Ended
May 31, 2018
Schedule of Accumulated Other Comprehensive Income (Loss) [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Accumulated Other Comprehensive Loss
The following is a summary of the Company's accumulated other comprehensive loss (in thousands):
 
 
May 31, 2018
August 31, 2017
Foreign currency translation adjustments
 
$
145,319

$
207,804

Pension and other postretirement benefit plans, net of tax
 
18,861

19,457

Accumulated other comprehensive loss
 
$
164,180

$
227,261