Accrued Expenses (Details) - USD ($) $ in Thousands	9 Months Ended
	May 31, 2020	May 31, 2019	Aug. 31, 2019
Accrued Liabilities, Current [Abstract]
Contract liabilities	$ 463,773		$ 511,329
Accrued compensation and employee benefits	609,905		600,907
Other accrued expenses	2,173,299		1,877,908
Accrued expenses	3,246,977		$ 2,990,144
Revenue recognized during period that was included in contract liability balance	$ 260,900	$ 350,900