Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Stock-Based Compensation (Narratives) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2020	Aug. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining contractual life of stock options outstanding			3 years 10 months 24 days
Weighted average remaining contractual life of stock options exercisable			3 years 11 months 5 days
Aggregate intrinsic value of stock options outstanding	$ 77,800		$ 77,800
Aggregate intrinsic value of stock options exercisable	77,800		77,800
Equity Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	0		0
Stock-based compensation expense (income) associated with stock options, total	0		0
Restricted Stock and Performance Unit Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense (income) associated with stock options, total	$ 4,600	$ 4,500	$ 12,700	$ 14,400