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Stockholders' Equity (Narratives) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 0 Months Ended 3 Months Ended
Jan. 29, 2013
Feb. 28, 2014
Feb. 28, 2013
Equity [Abstract]      
Stock Issued During Period, Shares, New Issues 6,325,000    
Common Stock, Par or Stated Value Per Share $ 1.00    
Stock issued during period, shares, treasury stock reissued 6,325,000    
Proceeds from issuance of common stock, net $ 109,811 $ 0 $ 109,811
Common stock reserve, shares   12,602,735  
Dividend paid in each quarter (in dollars per share)   $ 0.0250 $ 0.0250
Debt Instrument [Line Items]      
Number of common stock, authorized, approved under a board approved stock repurchase program   4,000,000