COMPONENTS OF NET PERIODIC PENSION COST (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 31, 2012	Jan. 31, 2011	Jan. 31, 2012	Jan. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3,412	$ 3,317	$ 6,853	$ 6,619
Interest cost	7,532	7,570	15,763	15,118
Expected return on plan assets	(6,158)	(5,727)	(12,425)	(11,442)
Amortization of prior service cost	340	529	964	1,056
Recognized actuarial loss	2,843	2,370	7,632	4,736
Gain due to curtailments and settlements	0	(24)	0	(47)
Net periodic benefit cost	7,969	8,035	18,787	16,040
U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	2,231	2,015	4,462	4,030
Interest cost	3,051	3,032	6,647	6,064
Expected return on plan assets	(2,303)	(2,203)	(4,606)	(4,406)
Amortization of prior service cost	374	456	1,031	912
Recognized actuarial loss	1,546	967	5,000	1,934
Gain due to curtailments and settlements	0	0	0	0
Net periodic benefit cost	4,899	4,267	12,534	8,534
Foreign Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,181	1,302	2,391	2,589
Interest cost	4,481	4,538	9,116	9,054
Expected return on plan assets	(3,855)	(3,524)	(7,819)	(7,036)
Amortization of prior service cost	(34)	73	(67)	144
Recognized actuarial loss	1,297	1,403	2,632	2,802
Gain due to curtailments and settlements	0	(24)	0	(47)
Net periodic benefit cost	$ 3,070	$ 3,768	$ 6,253	$ 7,506