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Stock-Based Compensation (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Stock-Based Compensation [Abstract] |  |  |  |
Stock-based compensation expense | $ 2.1 | $ 5.6 | $ 7.4 | $ 9.8
Unrecognized compensation expense | 38.7 |  | $ 38.7 |
Weighted-average remaining service period |  |  | 2 years |
Performance stock awards |  |  |  |
Stock-Based Compensation [Abstract] |  |  |  |
Period of time to average cash flow return on invested capital |  |  | 3 years |
Period of time to average EBITDA growth |  |  | 3 years |
Stock granted (in shares) |  |  | 0.1 | 0.1
Fair value of stock granted (in dollars per share) |  |  | $ 106.7 | $ 103.77
Unrecognized compensation expense | 31.1 |  | $ 31.1 |
Weighted-average remaining service period |  |  | 2 years |
Restricted stock awards |  |  |  |
Stock-Based Compensation [Abstract] |  |  |  |
Stock granted (in shares) |  |  | 0.0 | 0.0
Fair value of stock granted (in dollars per share) |  |  | $ 112.96 | $ 105.4
Unrecognized compensation expense | $ 7.6 |  | $ 7.6 |
Weighted-average remaining service period |  |  | 1 year 9 months 18 days |

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- Definition 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. + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References 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 + Details
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- 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://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 + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
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- Definition 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). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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