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Income Taxes
6 Months Ended
Jan. 31, 2015
Income Taxes [Abstract]  
Income Taxes
10.Income Taxes

The estimated effective tax rate was 43.7% and 45.2% for the six months ended January 31, 2015 and 2014, respectively.  The decrease was mainly a result of an increase in forecasted income from foreign entities in countries with a lower effective tax rate than in the U.S., which was partially offset by a smaller increase in forecasted income from U.S. entities.