Significant Accounting Policies - Government Incentives (Details) - USD ($) $ in Millions	Mar. 31, 2024	Mar. 31, 2023
Government Assistance [Line Items]
Government Assistance, Statement of Financial Position [Extensible Enumeration]	Property, Plant and Equipment, Net
Government Assistance, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent
Government Assistance, Current, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities, Current
Capital-Related Grants
Government Assistance [Line Items]
Capital-related grants	$ 126.5	$ 81.0
Capital-related grants - offset within other assets	93.2
Capital-related grants - reduction to income tax payable	$ 27.3

Amount of cumulative government assistance recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 832
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483507/832-10-50-3

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