Quarterly report [Sections 13 or 15(d)]

Description of Business, Basis of Presentation, and Significant Accounting Policies (Summary of Accounts Receivable, Net of Allowance for Credit Losses) (Details)

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Description of Business, Basis of Presentation, and Significant Accounting Policies (Summary of Accounts Receivable, Net of Allowance for Credit Losses) (Details) - USD ($)
$ in Millions
Feb. 28, 2026
May 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total accounts receivable, gross $ 1,473.2 $ 1,356.5
Less: Allowance for credit losses 38.2 26.0
Accounts receivable, net of allowance for credit losses 1,435.0 1,330.5
Trade Receivables [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total accounts receivable, gross 273.4 205.4
Purchased Receivables [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total accounts receivable, gross $ 1,199.8 $ 1,151.1