Organization, Basis of Presentation and Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
	Sep. 01, 2018	May 31, 2019	Nov. 30, 2018	May 31, 2018	May 31, 2019	May 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Overall decrease to revenues		$ (8,497,941)		$ (9,087,328)	$ (23,465,769)	$ (24,099,365)
Accounting Standards Update 2016-01
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification from AOCI	$ 4,700		$ 0
Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of adoption for all contracts and customers that had not been completed as of the adoption date	$ 1,000
Overall decrease to revenues		(3,783,752)			(9,415,783)
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Overall decrease to revenues		$ 14,200			$ 36,900