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Dividends
9 Months Ended
Oct. 31, 2012
Dividends [Abstract]  
Dividends
DIVIDENDS

Dividends paid during the three months and nine months ended October 31, 2012 were $3,812 and $11,430, or 10.5 cents and 31.5 cents per share, respectively. Dividends paid during the three and nine months ended October 31, 2011 were $3,257 and $9,766, or 9.0 cents and 27.0 cents per share, respectively.