Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Statement of Comprehensive Income [Abstract]
Net earnings	$ 14,566	$ 11,876	$ 22,467	$ 18,971
Other comprehensive income (loss):
Defined benefit pension plan adjustment, net of tax	48	59	97	102
Foreign currency translation adjustment, net of hedging activities and tax	1,997	481	(1,353)	1,864
Unrealized loss on marketable securities, net of tax	(105)	(25)	(162)	(56)
Total other comprehensive income (loss), net of tax (benefit) expense of ($21), $20, ($19), and ($12) respectively	1,940	515	(1,418)	1,910
Total comprehensive income	$ 16,506	$ 12,391	$ 21,049	$ 20,881