Revenue Recognition (Schedule Of Revenues By Segment And Major Source) (Details) - USD ($) $ in Thousands		3 Months Ended
		Nov. 30, 2021	Nov. 30, 2020
Revenue from External Customer [Line Items]
Total net sales		$ 134,746	$ 124,559
Maintenance Products [Member]
Revenue from External Customer [Line Items]
Total net sales		126,030	114,343
Homecare And Cleaning Products [Member]
Revenue from External Customer [Line Items]
Total net sales	[1]	8,716	10,216
Americas [Member]
Revenue from External Customer [Line Items]
Total net sales		56,288	54,188
Americas [Member] | Maintenance Products [Member]
Revenue from External Customer [Line Items]
Total net sales		51,984	48,503
Americas [Member] | Homecare And Cleaning Products [Member]
Revenue from External Customer [Line Items]
Total net sales	[1]	4,304	5,685
EMEA [Member]
Revenue from External Customer [Line Items]
Total net sales		57,555	54,749
EMEA [Member] | Maintenance Products [Member]
Revenue from External Customer [Line Items]
Total net sales		55,443	52,376
EMEA [Member] | Homecare And Cleaning Products [Member]
Revenue from External Customer [Line Items]
Total net sales	[1]	2,112	2,373
Asia-Pacific [Member]
Revenue from External Customer [Line Items]
Total net sales		20,903	15,622
Asia-Pacific [Member] | Maintenance Products [Member]
Revenue from External Customer [Line Items]
Total net sales		18,603	13,464
Asia-Pacific [Member] | Homecare And Cleaning Products [Member]
Revenue from External Customer [Line Items]
Total net sales	[1]	$ 2,300	$ 2,158

[1] Homecare and cleaning products (“HCCP”)