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Acquisitions - Narrative (Details) - USD ($) $ in Millions |  | 2 Months Ended | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 20, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | Aug. 31, 2023 | May 31, 2024 | Jun. 01, 2023 | May 31, 2023
Business Acquisition [Line Items] |  |  |  |  |  |  |
Noncontrolling interest, equity, carrying amount |  |  |  |  |  | $ 1.6 |
Additional paid-in capital |  | $ 606.3 | $ 606.3 | $ 632.7 | $ 604.6 | $ 0.5 |
9 Story Media Group Inc. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Percentage of outstanding shares acquired | 100.00% |  |  |  |  |  |
Percentage of interests acquired | 25.00% |  |  |  |  |  |
Revenues |  | 16.0 | 242.9 | 248.3 |  |  |
Acquisition related costs |  |  | 1.7 |  |  |  |
Net income (loss) |  | $ 0.1 | $ (64.3) | $ (78.9) |  |  |
9 Story Media Group Inc. | Intellectual Property and Customer Contracts/Relationships |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Acquired finite-lived intangible assets, weighted average useful life | 10 years |  |  |  |  |  |
9 Story Media Group Inc. | Customer Relationships |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Acquired finite-lived intangible assets, weighted average useful life | 5 years |  |  |  |  |  |
9 Story Media Group Inc. | Trade Names |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Acquired finite-lived intangible assets, weighted average useful life | 10 years |  |  |  |  |  |
9 Story Media Group Inc. | Software Development |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Acquired finite-lived intangible assets, weighted average useful life | 3 years |  |  |  |  |  |
Scholastic, Inc. | Make Believe Ideas Limited (MBI) |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  | 100.00% | 95.00%

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-1 + Details
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