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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