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v3.21.2

Investments (Details) - USD ($) | 12 Months Ended
--- | ---
May 31, 2021 | May 31, 2020 | May 31, 2019
Investments (Details) [Line Items] |  |  |
Investments | $ 40,300,000 | $ 31,000,000.0 |
Income from equity investments | 7,400,000 | 3,200,000 | $ 5,900,000
Proceeds from Dividends Received | $ 2,400,000 | 1,000,000.0 |
Children's Book Publishing & Distribution |  |  |
Investments (Details) [Line Items] |  |  |
Non-controlling interest held | 26.20% |  |
Financing and Production Company |  |  |
Investments (Details) [Line Items] |  |  |
Impairment of investments | $ 0 |  |
Other Investments |  |  |
Investments (Details) [Line Items] |  |  |
Investments | $ 100,000 | 100,000 |
Financing and Production Company | Financing and Production Company |  |  |
Investments (Details) [Line Items] |  |  |
Percent ownership in financing and production company | 4.60% |  |
International |  |  |
Investments (Details) [Line Items] |  |  |
Equity method investments | $ 34,300,000 | 25,000,000.0 |
Children's Book Publishing & Distribution | Other Cost Method Investments |  |  |
Investments (Details) [Line Items] |  |  |
Investments | $ 6,000,000.0 | $ 6,000,000.0 |

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