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Revenue Recognition, Contracts with Customers, Description of Revenue Generating Activities (Details) | 12 Months Ended
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Apr. 30, 2021 Performanceobligation Institution
Research Publishing & Platforms [Member] | Research Publishing [Member] | Journals Subscriptions [Member] |
Description of Revenue Generating Activities [Abstract] |
Number of performance obligations | Performanceobligation | 2
Duration of contract | 1 year
Research Publishing & Platforms [Member] | Research Publishing [Member] | Open Access [Member] |
Description of Revenue Generating Activities [Abstract] |
Number of academic institutions | Institution | 700
Duration of contract | 3 years
Research Publishing & Platforms [Member] | Research Platforms [Member] | Minimum [Member] |
Description of Revenue Generating Activities [Abstract] |
Duration of contract | 2 years
Research Publishing & Platforms [Member] | Research Platforms [Member] | Maximum [Member] |
Description of Revenue Generating Activities [Abstract] |
Duration of contract | 5 years
Academic & Professional Learning [Member] | Education Publishing [Member] | Test Preparation and Certification [Member] |
Description of Revenue Generating Activities [Abstract] |
Duration of contract | 3 years
Academic & Professional Learning [Member] | Professional Learning [Member] | Corporate Training [Member] |
Description of Revenue Generating Activities [Abstract] |
Duration of contract | 1 year
Education Services [Member] | Education Services OPM [Member] | Minimum [Member] |
Description of Revenue Generating Activities [Abstract] |
Duration of contract | 7 years
Education Services [Member] | Education Services OPM [Member] | Maximum [Member] |
Description of Revenue Generating Activities [Abstract] |
Duration of contract | 10 years

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