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Revenue Recognition - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2025	Aug. 31, 2024	May 31, 2025
Disaggregation of Revenue [Line Items]
Deferred commissions, current	$ 96.5		$ 96.5
Deferred commissions, noncurrent	283.1		$ 275.3
Amortization of deferred commissions	$ 26.2	$ 25.9
Revenue \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	100.00%	100.00%
Revenue \| Product Concentration Risk \| Uniform Direct Sales
Disaggregation of Revenue [Line Items]
Percentage of revenue	2.60%	3.10%
Route Servicing Fees \| Revenue \| Product Concentration Risk \| Uniform Rental and Facility Services, First Aid and Safety Services and Fire Protection Services
Disaggregation of Revenue [Line Items]
Percentage of revenue	95.00%
Other \| Revenue \| Product Concentration Risk \| Uniform Direct Sales
Disaggregation of Revenue [Line Items]
Percentage of revenue	5.00%