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Other Financial Statement Details - Accounts Receivable (Details) - USD ($) $ in Millions	Sep. 30, 2025	Mar. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable, gross	$ 751.8	$ 695.6
Less: allowance for expected credit losses	5.6	5.9
Total accounts receivable, net	746.2	689.7
Trade accounts receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable, gross	737.0	684.1
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable, gross	$ 14.8	$ 11.5

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