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

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Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.

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Number of shares authorized for issuance under share-based payment arrangement.

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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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Number of shares that have been repurchased during the period and are being held in treasury.

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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 (Narratives) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2021	Aug. 31, 2020	Aug. 31, 2021	Aug. 31, 2020	Jul. 08, 2021	Feb. 18, 2021	Jul. 17, 2014
Debt Instrument [Line Items]
Payment, Tax Withholding, Share-based Payment Arrangement			$ 8,456	$ 6,219
Treasury Stock, Value, Acquired, Cost Method	$ 188,175		$ 188,175
Cash dividends declared per common share (in dollars per share)	$ 0.15	$ 0.09	$ 0.45	$ 0.27
Dividend paid in each quarter (in dollars per share)	$ 0.15	$ 0.09	$ 0.45	$ 0.27
Treasury Stock
Debt Instrument [Line Items]
Common stock repurchased (in shares)	4,668,600		4,669,000
Treasury Stock, Value, Acquired, Cost Method	$ 188,175		$ 188,175
Shares Withheld to Pay Taxes [Member]
Debt Instrument [Line Items]
Common stock repurchased (in shares)			207,775
Payment, Tax Withholding, Share-based Payment Arrangement			$ 8,500
July 2021 Stock Repurchase Program
Debt Instrument [Line Items]
Number of common stock, authorized, approved under a board approved stock repurchase program (in shares)					5,000,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	331,400		331,400
May 2018 Stock Repurchase Program
Debt Instrument [Line Items]
Number of common stock, authorized, approved under a board approved stock repurchase program (in shares)	2,193,947		2,193,947
Director Plan SARs [Domain]
Debt Instrument [Line Items]
Number of common stock, authorized, approved under a board approved stock repurchase program (in shares)							680,000
2014 Equity Incentive Plan [Domain]
Debt Instrument [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	680,000		680,000
Performance Shares [Member] \| PSU 2017 [Domain]
Debt Instrument [Line Items]
Common Stock, Shares, Issued (in shares)						419,070