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INCENTIVE COMPENSATION PLANS	12 Months Ended
INCENTIVE COMPENSATION PLANS	Jul. 31, 2012
Compensation Related Costs [Abstract]
INCENTIVE COMPENSATION PLANS	INCENTIVE COMPENSATION PLANS The plans provide additional compensation to officers and key employees of the Company and its subsidiaries based upon the achievement of specified goals. The compensation committee of the board of directors establishes the goals on which the Company’s executive officers are compensated, and management establishes the goals for other covered employees. The aggregate amounts charged to expense in connection with the plans were $30,243, $32,328 and $27,350 for fiscal years 2012, 2011 and 2010, respectively.