Acquisitions (Purchase Price Of Assets Acquired And Liabilities Assumed) (Detail) (USD $) In Thousands, unless otherwise specified	Jul. 31, 2011
Business Acquisition [Line Items]
Short-term investment	$ 565
Accounts receivable	4,572
Inventories	2,853
Prepaid and other current assets	256
Deferred income taxes	11,185
Property, plant and equipment	2,933
Intangible assets	19,047
Goodwill	16,193
Total assets acquired	57,604
Accounts payable	1,375
Deferred income taxes	7,176
Long-term debt	1,295
Other accrued liabilities	1,617
Total liabilities assumed	11,463
Net assets acquired	$ 46,141

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The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.

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The amount of acquisition cost of a business combination allocated to assets acquired.

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The total purchase price of the acquired entity. This includes cash paid to equity interest holders of the acquired entity, fair value of debt and equity securities issued to equity holders of the acquired entity, and transaction costs paid to third parties to consummate the acquisition.

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The amount of acquisition cost of a business combination allocated to inventory, including finished goods, work-in-process, and raw materials.

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The amount of acquisition cost of a business combination allocated to marketable securities.

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The amount of acquisition cost of a business combination allocated to prepaid expenses and other current assets. Does not include amounts allocated to cash and cash equivalents, marketable securities, receivables, inventory, and assets not to be used.

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The amount of acquisition cost of a business combination allocated to receivables.

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The amount of acquisition cost of a business combination allocated to accounts payable of the acquired entity.

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The amount of acquisition cost of a business combination allocated to accrued expenses of the acquired entity.

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The amount of acquisition cost of a business combination allocated to the current portion of long-term debt of the acquired entity.

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Amount of acquisition cost of a business combination allocated to noncurrent deferred tax assets net of valuation allowance and noncurrent deferred tax liabilities.

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Gross amount of acquisition cost of a business combination allocated to noncurrent deferred tax assets.

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No definition available.

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

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The amount of acquisition cost of a business combination allocated to liabilities assumed.

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The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations.

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