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Investments - Narrative (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Feb. 29, 2024 | Feb. 28, 2023 | Feb. 29, 2024 | Feb. 28, 2023
Debt and Equity Securities, FV-NI [Line Items] |  |  |  |
Equity method investment, impairment |  |  | $ 0 |
Income from equity-method investments | $ 200,000 | $ 200,000 | 100,000 | $ 1,500,000
Proceeds from Dividends Received | $ 1,300,000 | $ 0 | $ 1,300,000 | $ 0
Children's Book Publishing & Distribution |  |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |  |
Equity method ownership percentage | 26.20% |  | 26.20% |
Financing and Production Company | Financing and Production Company |  |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |  |
Other equity percentage |  |  | 4.60% |

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- Definition This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481664/323-10-45-1 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481687/323-10-50-3 + Details
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