Fair Value Disclosures (Fair Value Hierarchy, Carrying Values, and Estimated Fair Values of Financial Instruments) (Details) - Level 2 - Senior Notes [Member] - USD ($) $ in Thousands		Aug. 31, 2021	Nov. 30, 2020
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes	[1]	$ 1,859,434	$ 1,742,508
Estimate of Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior notes		$ 2,024,346	$ 1,924,250

[1] The carrying values for the senior notes include unamortized debt issuance costs. Debt issuance costs are not factored into the estimated fair values of these notes.