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Leases (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2020
Lease Assets and Liabilities [Abstract] |  |  |  |
Operating lease ROU assets |  | $ 52.1 |  |
Operating lease ROU assets, Statement of Financial Position [Extensible List] |  | Other Assets, Noncurrent |  |
Finance lease ROU assets | [1] | $ 7.7 | $ 8.3 |
Finance lease ROU assets, Statement of Financial Position [Extensible List] |  | Property, Plant and Equipment, Net | Property, Plant and Equipment, Net |
Operating lease liabilities, current |  | $ 12.7 |  |
Operating lease liabilities, current, Statement of Financial Position [Extensible List] |  | Other Liabilities, Current |  |
Operating lease liabilities, noncurrent |  | $ 41.2 | $ 44.8 |
Operating lease liabilities, noncurrent, Statement of Financial Position [Extensible List] |  | Other Liabilities, Noncurrent | Other Liabilities, Noncurrent |
Finance lease liabilities, current |  | $ 0.4 | $ 0.4 |
Finance lease liabilities, current, Statement of Financial Position [Extensible List] |  | Long-term Debt and Lease Obligation, Current | Long-term Debt and Lease Obligation, Current |
Finance lease liabilities, noncurrent |  | $ 2.8 | $ 3.2 |
Finance lease liabilities, noncurrent, Statement of Financial Position [Extensible List] |  | Long-term Debt and Lease Obligation | Long-term Debt and Lease Obligation |
Accumulated amortization |  | $ 2.8 | $ 2.4 |
Components of Lease Expense [Abstract] |  |  |  |
Operating lease expense | [2] | 20.0 | 19.5 | $ 21.2
Finance lease expense [Abstract] |  |  |  |
Depreciation of ROU assets |  | 0.5 | 0.5 | 0.5
Interest on lease liabilities |  | 0.2 | 0.2 | 0.2
Total lease expense |  | 20.7 | 20.2 | 21.9
Short-term lease expense |  | 4.2 | 3.5 | 4.1
Cash paid for amounts included in measurement of lease liabilities [Abstract] |  |  |  |
Operating cash flows for operating leases |  | 15.7 | 14.2 | 14.7
Financing cash flows for finance leases |  | 0.6 | 0.6 | 0.5
ROU assets obtained in exchange for lease liabilities [Abstract] |  |  |  |
Operating leases |  | 7.8 | 9.8 | 9.0
Finance leases |  | $ 0.1 | $ 0.1 | $ 0.2
Weighted-average remaining lease term [Abstract] |  |  |  |
Operating leases |  | 8 years 6 months | 6 years 10 months 24 days |
Finance leases |  | 6 years 9 months 18 days | 7 years 9 months 18 days |
Weighted-average discount rate [Abstract] |  |  |  |
Operating leases |  | 3.40% | 3.30% |
Finance leases |  | 4.60% | 4.70% |
Maturity of Operating Lease Liabilities [Abstract] |  |  |  |
2023 |  | $ 14.2 |  |
2024 |  | 10.2 |  |
2025 |  | 7.8 |  |
2026 |  | 6.8 |  |
2027 |  | 6.2 |  |
2028 and beyond |  | 16.4 |  |
Total lease payments |  | 61.6 |  |
Less: Interest |  | (7.7) |  |
Present value of lease liabilities |  | 53.9 |  |
Maturities of Finance Lease Liabilities [Abstract] |  |  |  |
2023 |  | 0.6 |  |
2024 |  | 0.6 |  |
2025 |  | 0.6 |  |
2026 |  | 0.5 |  |
2027 |  | 0.5 |  |
2028 and beyond |  | 0.9 |  |
Total lease payments |  | 3.7 |  |
Less: Interest |  | (0.5) |  |
Present value of lease liabilities |  | $ 3.2 |  |
Assets Held for Sale [Member] |  |  |  |
Lease Assets and Liabilities [Abstract] |  |  |  |
Operating lease ROU assets |  |  | $ 6.1 |
Liabilities Held for Sale [Member] |  |  |  |
Lease Assets and Liabilities [Abstract] |  |  |  |
Operating lease liabilities, current |  |  | 6.1 |
Other Noncurrent Assets [Member] |  |  |  |
Lease Assets and Liabilities [Abstract] |  |  |  |
Operating lease ROU assets |  |  | 54.1 |
Other Current Liabilities [Member] |  |  |  |
Lease Assets and Liabilities [Abstract] |  |  |  |
Operating lease liabilities, current |  |  | $ 11.2 |
Minimum [Member] |  |  |  |
Significant Accounting Policy [Abstract] |  |  |  |
Remaining lease term |  | 1 year |  |
Maximum [Member] |  |  |  |
Significant Accounting Policy [Abstract] |  |  |  |
Remaining lease term |  | 12 years |  |
[1] | Finance lease ROU assets were recorded net of accumulated amortization of $2.8 million and $2.4 million as of March 31, 2022 and 2021, respectively.
[2] | In fiscal 2022, 2021, and 2020 operating lease expense included short-term lease expense of $4.2 million, $3.5 million, and $4.1 million respectively. Variable lease expense was not significant.

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- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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- Definition Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980 + Details
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- Definition Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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- Definition Indicates line item in statement of financial position that includes current operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918631-209977 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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- Definition Indicates line item in statement of financial position that includes noncurrent operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918631-209977 + Details
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- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918643-209977 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(1) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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- Definition Indicates line item in statement of financial position that includes operating lease right-of-use asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918631-209977 + Details
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- Definition Weighted average discount rate for operating lease calculated at point in time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(4) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 + Details
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- Definition Weighted average remaining lease term for operating lease, 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/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(3) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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- Definition Amount of increase in right-of-use asset obtained in exchange for finance lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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