Other Current Liabilities (Schedule of Other Liabilities Current) (Details) - USD ($) $ in Thousands	Aug. 31, 2019	Aug. 31, 2018
Other Liabilities Disclosure [Abstract]
Contract liabilities	$ 14,763	$ 7,306
Employee compensation and benefits	13,960	17,850
Accrued warranty	8,960	7,109
Dealer related liabilities	3,246	2,431
Deferred revenue - lease	2,985	878
Accrued insurance	1,482	2,256
Accrued environmental liability	1,243	1,264
Tax related liabilities	1,469	1,293
Other	4,380	6,548
Total other current liabilities	$ 52,488	$ 46,935