Other Current Liabilities (Schedule Of Other Liabilities Current) (Details) - USD ($) $ in Thousands	Aug. 31, 2017	Aug. 31, 2016
Other Current Liabilities [Abstract]
Compensation and benefits	$ 18,926	$ 19,044
Warranties	8,411	7,443
Deferred revenues	6,166	7,594
Customer deposits	4,096	3,399
Dealer related liabilities	3,500	4,978
Tax related liabilities	2,813	4,200
Accrued environmental liabilities	2,095	722
Other	9,112	8,015
Total other current liabilities	$ 55,119	$ 55,395