Fair Value and Derivatives - Schedule of (Losses) Gains from Derivatives Not Designated as Hedging Instruments Statements of Financial Performance and Location (Detail) - USD ($) $ in Millions	3 Months Ended
Aug. 31, 2026	Aug. 31, 2025
Not Designated as Hedging Instrument [Member] \| Forward Contracts [Member] \| Other Net [Member]
Derivative [Line Items]
Foreign currency forward contracts	$ (0.3)	$ 0.1

Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4CC
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC

Name:	us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration