Revenue from Contracts with Customers Contract with Customer, Asset and Liability (Details) - USD ($) $ in Thousands	Aug. 31, 2020	Aug. 31, 2019
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 84,170	$ 125,883
Contract with Customer, Asset, Net	6,145	3,747
Contract with Customer, Liability	2,145	$ 3,707
Revenue, Remaining Performance Obligation, Amount	$ 2,100