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Stockholders' Equity (Narratives) (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
May 31, 2022 | May 31, 2021 | May 31, 2022 | May 31, 2021 | Apr. 07, 2022 | Feb. 17, 2022 | Nov. 30, 2021 | Jul. 17, 2014
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Payment, Tax Withholding, Share-based Payment Arrangement |  |  | $ 12,153 | $ 8,456 |  |  |  |
Cash dividends declared per common share (in dollars per share) | $ 0.15 | $ 0.15 | $ 0.30 | $ 0.30 |  |  |  |
Dividend paid in each quarter (in dollars per share) | $ 0.15 | $ 0.15 | $ 0.30 | $ 0.30 |  |  |  |
Options outstanding (in shares) | 1,674,393 |  | 1,674,393 |  |  |  | 1,674,393 |
Stock Repurchased During Period, Value | $ 50,000 |  |  |  |  |  |  |
Treasury Stock |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Common stock repurchased (in shares) | 1,520,000 |  | 1,520,000 |  |  |  |  |
Stock Repurchased During Period, Shares | 1,519,646 |  |  |  |  |  |  |
Shares Withheld to Pay Taxes [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Common stock repurchased (in shares) |  |  | 319,815 |  |  |  |  |
Payment, Tax Withholding, Share-based Payment Arrangement |  |  | $ 12,200 |  |  |  |  |
July 2021 Stock Repurchase Program |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased |  |  |  |  | 331,400 |  |  |
April 2022 Stock Repurchase Program |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ 250,000 |  | $ 250,000 |  | $ 300,000 |  |  |
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
Performance Shares [Member] | PSU 2018 [Domain] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Common Stock, Shares, Issued (in shares) |  |  |  |  |  | 674,677 |  |

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