Segment Information and Geographic Data - Disaggregated Revenue (Detail) - USD ($) $ in Millions	3 Months Ended
Aug. 31, 2026	Aug. 31, 2025
Revenues by Geographic Location [Line Items]
Total revenue	$ 222.8	$ 209.2
Domestic
Revenues by Geographic Location [Line Items]
Total revenue	110.1	102.1
International
Revenues by Geographic Location [Line Items]
Total revenue	$ 112.7	$ 107.1

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details