Beneficially ownership in company's outstanding common stock to be held by person or group to exercise rights.

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Business days after the commencement of a tender or exchange offer during which rights to be exercised.

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Calendar days after a public announcement during which rights to be exercised.

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Purchase price for right holders.

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Exercise price per share or per unit of warrants or rights outstanding.

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-Publisher FASB
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Aggregate dividends paid during the period for each share of common stock outstanding.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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No definition available.

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The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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No definition available.

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Number of shares that have been repurchased and retired during the period.

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Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Number of shares of common and preferred stock retired from treasury during the period.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Nov. 30, 2021	Aug. 31, 2021	May 31, 2021	Feb. 28, 2021	Nov. 30, 2020	Aug. 31, 2020	May 31, 2020	Feb. 29, 2020	Nov. 30, 2019	Aug. 31, 2019	May 31, 2019	Feb. 28, 2019	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2019	Jul. 08, 2021	Jul. 07, 2021	Jul. 17, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price for right holders (per right)	$ 85.00												$ 85.00
Calendar days after a public announcement during which rights to be exercised													10 days
Business days after the commencement of a tender or exchange offer during which rights to be exercised													10 days
Beneficially ownership in company's outstanding common stock to be held by person or group to exercise rights													4.90%
Price at which company may redeem all of the then outstanding rights (per right)	$ 0.001												$ 0.001
Stock repurchases													$ 188,175
Shares of common stock authorized (in shares)	290,000,000				290,000,000								290,000,000	290,000,000
Shares of common stock issued (in shares)	100,711,153				99,868,625								100,711,153	99,868,625
Cash dividends paid per common share (in dollars per share)	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.09	$ 0.09	$ 0.09	$ 0.09	$ 0.09	$ 0.025	$ 0.025
Value of treasury stock acquired													$ 12,337	$ 9,503	$ 7,288
Cash dividends declared per common share (in dollars per share)	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.09	$ 0.09	$ 0.09	$ 0.09	$ 0.09	$ 0.025	$ 0.025
Retirement of treasury stock, shares														23,487,966
Director Plan SARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized repurchase of common stock (in shares)																		680,000
Shares of common stock authorized (in shares)																		680,000
Shares of common stock issued (in shares)	0												0
Treasury Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchases (in shares)													4,669,000
Stock repurchases													$ 188,175
Value of treasury stock acquired													$ 12,337	$ 9,503	7,288
Retirement of treasury stock, shares														(23,488,000)
Stock Repurchased During Period, Shares													4,668,600
Stock Repurchased During Period, Value													$ 188,200
July 2021 Stock Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized repurchase of common stock (in shares)																5,000,000
Remaining authorized number of shares available for repurchases	331,400												331,400
May 2018 Stock Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining authorized number of shares available for repurchases																	2,193,947
Not Part of a Share Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value of treasury stock acquired													$ 12,300	$ 9,500	$ 7,300