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Acquisitions - Identifiable Intangible Assets Acquired and Respective Weighted Average Lives (Detail) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Jul. 31, 2018 | Apr. 30, 2018
Acquired Finite Lived Intangible Assets [Line Items] |  |
Total intangible assets, gross | $ 172,398 | $ 172,213
Weighted Average Life (In years) | 5 years |
Developed technology |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Total intangible assets, gross | $ 21,130 | 21,130
Weighted Average Life (In years) | 6 years |
Customer relationships |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Total intangible assets, gross | $ 92,360 | $ 92,360
Weighted Average Life (In years) | 5 years |
Gemini Technologies, Incorporated and Bubba Blade Branded Products from Fish Tales, LLC |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Total intangible assets, gross | $ 6,400 |
Gemini Technologies, Incorporated and Bubba Blade Branded Products from Fish Tales, LLC | Developed technology |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Total intangible assets, gross | $ 1,700 |
Weighted Average Life (In years) | 5 years 10 months 24 days |
Gemini Technologies, Incorporated and Bubba Blade Branded Products from Fish Tales, LLC | Customer relationships |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Total intangible assets, gross | $ 1,600 |
Weighted Average Life (In years) | 5 years 2 months 12 days |
Gemini Technologies, Incorporated and Bubba Blade Branded Products from Fish Tales, LLC | Trade names |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Total intangible assets, gross | $ 3,100 |
Weighted Average Life (In years) | 5 years 7 months 6 days |

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