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Capital Stock (Unrecognized Compensation Cost) (Details) $ in Millions	12 Months Ended
	Mar. 31, 2022 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total Unrecognized Compensation Cost	$ 66.9
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total Unrecognized Compensation Cost	$ 17.4
Weighted Average Remaining Years	1 year
Restricted Share Units (RSUs) and Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total Unrecognized Compensation Cost	$ 49.5
Weighted Average Remaining Years	1 year 4 months 24 days

X

- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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X

- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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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.

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