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Acquisitions - Narrative (Details) - USD ($) $ in Millions |  | 3 Months Ended | 5 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 20, 2024 | Nov. 30, 2024 | Aug. 31, 2024 | Nov. 30, 2023 | Aug. 31, 2023 | Nov. 30, 2024 | Nov. 30, 2024 | Nov. 30, 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 |  | $ 603.5 |  | $ 630.8 |  | $ 603.5 | $ 603.5 | $ 630.8 | $ 604.6 | $ 0.5 |
Revenues |  | 544.6 |  | 562.6 |  |  | 781.8 | 791.1 |  |  |
Net income (loss) |  | 48.8 | $ (62.5) | $ 76.9 | $ (74.2) |  | (13.7) | $ 2.7 |  |  |
9 Story Media Group Inc. |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of outstanding shares acquired | 100.00% |  |  |  |  |  |  |  |  |  |
Percentage of interests acquired | 25.00% |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  | 31.9 |  |  |  |  |
Net income (loss) |  |  |  |  |  | $ 4.2 |  |  |  |  |
Acquisition related costs |  | $ 0.4 |  |  |  |  | $ 2.1 |  |  |  |
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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