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Restructuring And Asset Impairment (Reconciliation Of Restructuring Reserves) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Oct. 31, 2011	Jul. 31, 2011	Jul. 31, 2010	Jul. 31, 2009
Restructuring And Asset Impairment [Abstract]
Beginning balance		$ 4,139	$ 3,840
Accruals for restructuring during the reporting period		759	8,023	17,755
Less settlements made during the period		(4,898)	(7,724)	(13,915)
Ending Balance			$ 4,139	$ 3,840

Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments.

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- Definition

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

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