Basis of Presentation Basis of Presentation (Details) - USD ($) $ in Thousands	Feb. 28, 2022	Nov. 30, 2021	Aug. 31, 2021	Feb. 28, 2021	Nov. 30, 2020	Aug. 31, 2020
Condensed Statement of Income Captions [Line Items]
Foreign currency translation adjustments	$ 78,847		$ 69,986
Pension and other postretirement benefit plans, net of tax	22,437		22,998
Total shareholders’ equity	(413,023)	$ (409,806)	(412,198)	$ (381,393)	$ (367,946)	$ (359,226)
AOCI Attributable to Parent [Member]
Condensed Statement of Income Captions [Line Items]
Total shareholders’ equity	$ 101,284	$ 103,028	$ 92,984	$ 89,938	$ 99,095	$ 100,724