Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation Basis of Presentation (Details)

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Basis of Presentation Basis of Presentation (Details) - USD ($)
$ in Thousands
Nov. 30, 2020
Aug. 31, 2020
Nov. 30, 2019
Aug. 31, 2019
Condensed Statement of Income Captions [Line Items]        
Foreign currency translation adjustments $ 74,496 $ 75,896    
Pension and other postretirement benefit plans, net of tax 24,545 24,750    
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax 54 78    
Total shareholders’ equity (367,946) (359,226) $ (353,253) $ (301,179)
AOCI Attributable to Parent [Member]        
Condensed Statement of Income Captions [Line Items]        
Total shareholders’ equity $ 99,095 $ 100,724 $ 114,412 $ 171,672