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Supplemental Balance Sheet Information	12 Months Ended
	Apr. 30, 2012
Supplemental Balance Sheet Information	16. Supplemental Balance Sheet Information Other accrued liabilities included deferred revenue of $13.5 million and $11.3 million as of April 30, 2012 and 2011, respectively.

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- Definition

The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity.

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