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Schedule of Changes in Product Warranty Reserves for Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Product Warranty
Beginning balance	$ 84,134	$ 75,031	$ 84,250	$ 69,604
Provision	24,383	23,281	65,576	66,226
Payments	(21,564)	(18,370)	(63,482)	(55,888)
Acquisitions			609
Ending balance	$ 86,953	$ 79,942	$ 86,953	$ 79,942

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- Definition

Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability.

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-Publisher FASB

-Name Accounting Standards Codification

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Liability for a standard product warranty acquired in a business acquisition. Does not include any liability for an extended warranty acquired in a business acquisition.

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-Publisher FASB

-Name Accounting Standards Codification

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Represents the aggregate decrease in the liability for payments made (in cash or in kind) to satisfy claims under the terms of the standard product warranty. Does not include any Increase or Decrease in the liability for payments related to extended product warranties.

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Represents the aggregate increase in the liability for accruals related to standard product warranties issued during the reporting period. Does not include any increase in the liability for accruals related to extended product warranties.

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