Stock-Based Compensation (Narratives) (Details) - USD ($)	3 Months Ended
Feb. 28, 2023	Feb. 28, 2022	Nov. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding (in shares)	1,602,413		1,674,393
Options outstanding weighted average exercise price (in dollars per share)	$ 15.55		$ 15.56
Exercised (in shares)	71,980
Exercised (in dollars per share)	$ 15.75
Aggregate intrinsic value of stock options outstanding	$ 31,600,000
Aggregate intrinsic value of stock options exercisable	$ 31,600,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining contractual life of stock options outstanding	2 years 7 months 6 days
Weighted average remaining contractual life of stock options exercisable	2 years 7 months 6 days
Stock-based compensation expense	$ 0	$ 0
Restricted Stock and Performance Unit Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 5,900,000	$ 6,900,000

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

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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