Business Segments (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |
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Apr. 30, 2012
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Apr. 30, 2011
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Segment Reporting Information [Line Items] | ||
Change in fair value of acquisition-related contingent consideration | $ (2,196) | $ (4,919) |
X | ||||||||||
- Definition
This element represents the amount of any change, including any differences arising upon settlement, recognized during the reporting period in the value of a liability, arising from an item of contingent consideration, assumed in a business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Details
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