Financial Derivatives and Hedging - Schedule of Fair Values of Derivative Instruments in Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Apr. 30, 2022	Apr. 30, 2021
Designated as Hedging Instrument \| Interest Rate Swap \| Other non-current assets
Derivatives, Fair Value [Line Items]
Interest rate swap contracts, assets	$ 86.8	$ 17.2

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant