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The period of time cash flow return on invested capital is averaged as a performance metric for cash awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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The period of time growth in consolidated net earnings before interest, taxes, depreciation, amortization, and certain other adjustments (Adjusted EBITDA) is averaged as a performance metric for cash awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The period of time performance is measured for cash awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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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.

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Amount of noncash expense for share-based payment arrangement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (a)
-SubTopic 10
-Topic 230
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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 718
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-Section 50
-Paragraph 2
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-Publisher FASB
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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Percentage of vesting of award under share-based payment arrangement.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 718
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-Name Accounting Standards Codification
-Section 50
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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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Stock-Based Compensation, Restricted Stock (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Restricted Stock [Abstract]
Stock-based compensation expense (benefit)	$ 26.4	$ 10.8	$ 6.6
Restricted Stock
Restricted Stock [Abstract]
Stock-based compensation expense (benefit)	8.0	5.3	5.4
Fair value of awards vesting	6.3	$ 4.6	4.7
Unrecognized compensation costs	$ 6.0
Weighted average period recognized	1 year 6 months
Restricted Stock Activity [Roll Forward]
Non-vested balance, beginning of year (in shares)	0.5
Granted (in shares)	0.1
Vested (in shares)	(0.3)
Non-vested balance, end of year (in shares)	0.3	0.5
Weighted Average Price [Rollforward]
Non-vested balance, beginning of year (in dollars per share)	$ 21.08
Granted (in dollars per share)	111.02
Vested (in dollars per share)	19.02
Forfeited (in dollars per share)	35.71
Non-vested balance, end of year (in dollars per share)	$ 42.90	$ 21.08
Restricted Stock \| Awards Granted in Fiscal 2025
Restricted Stock [Abstract]
Award vesting period	3 years
Restricted Stock \| Awards Granted in Fiscal 2025 \| Tranche One
Restricted Stock [Abstract]
Annual vesting percentage	33.00%
Restricted Stock \| Awards Granted in Fiscal 2025 \| Tranche Two
Restricted Stock [Abstract]
Annual vesting percentage	33.00%
Restricted Stock \| Awards Granted in Fiscal 2025 \| Tranche Three
Restricted Stock [Abstract]
Annual vesting percentage	34.00%
Performance Stock Awards
Restricted Stock [Abstract]
Stock-based compensation expense (benefit)	$ 16.7	$ 4.5	$ 0.0
Unrecognized compensation costs	$ 21.6
Weighted average period recognized	1 year 8 months 12 days
Award vesting period	3 years
Performance Stock Awards \| Awards Granted in Fiscal 2025
Performance-Based Shares [Abstract]
Performance period	3 years
Performance Stock Awards \| Awards Granted in Fiscal 2024
Performance-Based Shares [Abstract]
Performance period	3 years
Performance Stock Awards \| Awards Granted in Fiscal 2023
Performance-Based Shares [Abstract]
Period of time to average cash flow return on invested capital	3 years
Period of time to average EBITDA growth	3 years