RETIREMENT PLANS (Details)	12 Months Ended
	Jul. 31, 2013
Plans
MULTIEMPLOYER PENSION PLAN
Service period required to be completed to be eligible to participate in plan	1 year
Plans | Minimum
MULTIEMPLOYER PENSION PLAN
Number of hours required for an employee to be eligible to participate in plan	1000 hours
Required age for an employee to be eligible to participate in plan (in years)	21
Annual contribution percentage per employee	1.00%
Plans | Maximum
MULTIEMPLOYER PENSION PLAN
Annual contribution percentage per employee	60.00%
Annual contribution percentage per highly-compensated employee	30.00%
U.S. Plan
MULTIEMPLOYER PENSION PLAN
Contribution percentage of employees who have not otherwise elected	5.00%
PR Plan
MULTIEMPLOYER PENSION PLAN
Contribution percentage of employees who have not otherwise elected	2.00%