Accrued Expenses (Details) - USD ($) $ in Thousands	6 Months Ended
	Feb. 29, 2020	Feb. 28, 2019	Aug. 31, 2019
Accrued Liabilities, Current [Abstract]
Contract liabilities	$ 495,314		$ 511,329
Accrued compensation and employee benefits	532,312		600,907
Other accrued expenses	1,987,503		1,877,908
Accrued expenses	3,015,129		$ 2,990,144
Revenue recognized during period that was included in contract liability balance	$ 201,100	$ 267,000