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Goodwill and Other Intangible Assets - Weighted Average Useful Life of Intangible Assets (Detail)
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9 Months Ended |
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Feb. 28, 2014
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Core technology [Member]
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| Goodwill And Other Intangible Assets [Line Items] | |
| Weighted Average Useful Life | 15 years |
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Completed technology [Member]
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| Goodwill And Other Intangible Assets [Line Items] | |
| Weighted Average Useful Life | 9 years |
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Product trade names [Member]
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| Goodwill And Other Intangible Assets [Line Items] | |
| Weighted Average Useful Life | 13 years |
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Customer relationships [Member]
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| Goodwill And Other Intangible Assets [Line Items] | |
| Weighted Average Useful Life | 14 years |
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Non-compete contracts [Member]
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| Goodwill And Other Intangible Assets [Line Items] | |
| Weighted Average Useful Life | 1 year |
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Corporate trade names [Member]
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| Goodwill And Other Intangible Assets [Line Items] | |
| Weighted Average Useful Life | Indefinite life |