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Goodwill and Other Intangible Assets - Schedule of Indefinite-Lived Intangible Assets (Details) - USD ($) $ in Millions | Mar. 31, 2021 | Mar. 31, 2020
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Indefinite-lived Intangible Assets [Line Items] |  |
Indefinite lived intangible assets other than goodwill | $ 128.0 | $ 120.9
Tradenames |  |
Indefinite-lived Intangible Assets [Line Items] |  |
Indefinite lived intangible assets other than goodwill | 120.6 | 113.5
Other |  |
Indefinite-lived Intangible Assets [Line Items] |  |
Indefinite lived intangible assets other than goodwill | $ 7.4 | $ 7.4

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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