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v3.21.2

Organization and Significant Accounting Policies - Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Apr. 30, 2021 | Apr. 30, 2020 | Apr. 30, 2019
Intangibles, net |  |  |
Impairment recorded | $ 0 | $ 0 | $ 0
Technology |  |  |
Intangibles, net |  |  |
Weighted average amortization period | 12 years |  |
Licenses |  |  |
Intangibles, net |  |  |
Weighted average amortization period | 3 years |  |
In-process research and development |  |  |
Intangibles, net |  |  |
Weighted average amortization period | 3 years |  |
Trademarks and tradenames |  |  |
Intangibles, net |  |  |
Weighted average amortization period | 6 years |  |
Minimum | Technology |  |  |
Intangibles, net |  |  |
Weighted average amortization period | 3 years |  |
Minimum | Customer relationships |  |  |
Intangibles, net |  |  |
Weighted average amortization period | 3 years |  |
Maximum | Customer relationships |  |  |
Intangibles, net |  |  |
Weighted average amortization period | 5 years |  |

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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- Details
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X
- Details
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Namespace Prefix: |
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Balance Type: |
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X
- Details
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Namespace Prefix: |
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Balance Type: |
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- Details
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- Details
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- Details
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