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Cost Reduction Actions (Activity of Facility Related Exit Costs) (Details) (USD $) | 3 Months Ended | 9 Months Ended | 42 Months Ended |
--- | --- | --- | --- | ---
Apr. 30, 2012 | Apr. 30, 2011 | Apr. 30, 2012 | Apr. 30, 2011 | Apr. 30, 2012 | Jul. 31, 2008
Cost Reduction Actions [Abstract] |  |  |  |  |  |
Present value of estimated facility-related exit costs, beginning balance |  |  | $ 2,518,000 |  | $ 2,100,000 | $ 2,100,000
Cash payments made |  |  | (751,000) |  | (4,047,000) |
Cash payments received |  |  | 909,000 |  | 4,193,000 |
Interest accreted on the facility-related exit costs | 48,000 | 41,000 | 139,000 | 119,000 | 569,000 |
Present value of estimated facility-related exit costs, ending balance | 2,815,000 |  | 2,815,000 |  | 2,815,000 | 2,100,000
Amount of facility-related exit cost liability recorded as prepaid expenses | 410,000 |  | 410,000 |  | 410,000 |
Facility-related exit cost liability, Noncurrent | $ 3,225,000 |  | $ 3,225,000 |  | $ 3,225,000 |

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- Definition Amount accrued to cover estimated present value of facility exit costs related to noncancellable lease obligations assumed in a business combination, net of the present value of estimated sublease income. + References No definition available. + Details
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- Definition Amount of expected net cash payments to be received in next twelve months from restructuring activities (reflected as prepaid expenses and other current assets in Consolidated Balance Sheet). + References No definition available. + Details
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- Definition The amount recorded in interest expense for the interest accreted on facility-related exit costs. + References No definition available. + Details
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- Definition Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Paragraph Question 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 146 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 95-3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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