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Common Stock Dividends
9 Months Ended
Oct. 31, 2013
Dividends, Common Stock [Abstract]  
Dividends Payable [Text Block]
Common Stock Dividends
On February 21, 2013, the Board of Directors approved an increase in the annual dividend for fiscal 2014 to $1.88 per share, an increase of approximately 18% over the $1.59 per share dividend paid in fiscal 2013. For fiscal 2014, the annual dividend will be paid in four quarterly installments of $0.47 per share, according to the following record and payable dates:
Record Date
  
Payable Date
March 12, 2013
  
April 1, 2013
May 10, 2013
  
June 3, 2013
August 9, 2013
  
September 3, 2013
December 6, 2013
  
January 2, 2014

The dividend installments payable on April 1, 2013, June 3, 2013 and September 3, 2013, were paid as scheduled.