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v3.23.1

Description of Business, Basis of Presentation and Significant Accounting Policies (Other) (Details) title in Thousands, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2022 USD ($) | Mar. 31, 2023 USD ($) title | Mar. 31, 2022 USD ($) | Mar. 31, 2021 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |
Goodwill impairment | $ 1,475.0 | $ 1,475.0 | $ 0.0 | $ 0.0
Number of titles in library | title |  | 18 |  |
Goodwill |  | $ 1,289.5 | 2,764.5 | 2,764.5
Indefinite-lived Intangible Assets (Excluding Goodwill) |  | 250.0 |  |
Advertising expenses |  | $ 610.7 | $ 662.4 | $ 532.6
Timing of payment |  | 60 days |  |
Minimum | Perpetual Nominal Growth Rate |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |
Goodwill measurement input | 0.015 |  |  |
Minimum | Discount Rate |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |
Goodwill measurement input | 0.100 |  |  |
Maximum | Perpetual Nominal Growth Rate |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |
Goodwill measurement input | 0.035 |  |  |
Maximum | Discount Rate |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |
Goodwill measurement input | 0.140 |  |  |

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