OTHER CURRENT AND NON-CURRENT ASSETS (Details Textuals) (USD $) In Thousands, unless otherwise specified	Jul. 31, 2013		Jul. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Fair value of the company's asset relating to the defined benefit plans	$ 91,031	[1]	$ 95,898	[1]
Foreign Plans [Member] | Germany
Defined Benefit Plan Disclosure [Line Items]
Fair value of the company's asset relating to the defined benefit plans	18,111		17,963
Fair value of the company's liability relating to the defined benefit plans	65,428		57,363
Nonqualified Defined Benefit Plan, Profit Sharing Plan, Assets for Contractual Obligations and Nonqualified Defined Contribution Plan [Member] | Benefit Protection [Member]
Defined Benefit Plan Disclosure [Line Items]
Retirement benefit assets related to Benefits Protection Trust	71,990
Assets held-in-trusts available to settle defined benefit plans	70,669
Retirement related liabilities associated with the assets held in the benefits protection trust	112,508
Nonqualified Defined Benefit Plan, Profit Sharing Plan, Assets for Contractual Obligations and Nonqualified Defined Contribution Plan [Member] | Benefit Protection [Member] | Available-for-sale Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Retirement benefit assets related to Benefits Protection Trust	70,901
Nonqualified Defined Benefit Plan, Profit Sharing Plan and Assets Set Aside for Contractual Obligations [Member] | Benefit Protection [Member]
Defined Benefit Plan Disclosure [Line Items]
Retirement benefit assets related to Benefits Protection Trust			77,935
Assets held-in-trusts available to settle defined benefit plans			74,601
Retirement related liabilities associated with the assets held in the benefits protection trust			128,979
Nonqualified Defined Benefit Plan, Profit Sharing Plan and Assets Set Aside for Contractual Obligations [Member] | Benefit Protection [Member] | Available-for-sale Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Retirement benefit assets related to Benefits Protection Trust			$ 75,795

[1] Retirement benefit assets are held to satisfy obligations related to certain retirement benefit plans, which provide benefits to eligible employees in Germany and the U.S. These include guaranteed investment contracts of $18,111 and $17,963 as of July 31, 2013 and July 31, 2012, respectively. The guaranteed investment contracts were established to pay for supplementary retirement benefits related to plans in Germany. The July 31, 2013 and July 31, 2012 consolidated balance sheets reflect related liabilities in the amounts of $65,428 and $57,363, respectively. Also included within retirement benefit assets are benefits protection trusts, with assets aggregating $71,990 and $77,935 as of July 31, 2013 and July 31, 2012, respectively. The trust was established for the primary purpose of satisfying certain supplemental post-employment benefit obligations in the U.S. for eligible executives in the event of a change of control of the Company. In addition to holding cash equivalents primarily to satisfy short-term cash requirements relating to benefit payments, the trust primarily invests in U.S. and Municipal government obligations, and debt obligations of corporations and financial institutions with high credit ratings. Contractual maturity dates of debt securities held by the trust range from 2013 to 2044. Such debt and equity securities are classified as available-for-sale and trading and aggregated $70,901 and $75,795 as of July 31, 2013 and July 31, 2012, respectively. The July 31, 2013 and July 31, 2012 consolidated balance sheets reflect retirement benefit assets held in the trust of $70,669 and $74,601 that relate to retirement benefit liabilities of $112,508 and $128,979, respectively.