Quarterly report [Sections 13 or 15(d)]

Supplemental Information (Narrative) (Details)

v3.25.4
Supplemental Information (Narrative) (Details)
$ in Millions
3 Months Ended 6 Months Ended
Nov. 30, 2025
USD ($)
Agreement
Nov. 30, 2024
USD ($)
Nov. 30, 2025
USD ($)
Agreement
Nov. 30, 2024
USD ($)
May 31, 2025
USD ($)
Apr. 14, 2025
USD ($)
Supplemental Information [Line Items]            
Number of lease agreement, not yet commenced | Agreement 1   1      
Lease not yet commenced, term of contract 7 years 6 months 29 days   7 years 6 months 29 days      
Lease payments, not yet commenced $ 14.5   $ 14.5      
Depreciation expense 34.8 $ 29.3 69.3 $ 56.5    
Amortization expense 74.3 12.4 149.1 24.2    
Impairment loss relates to goodwill or intangible assets     0.0 0.0    
Goodwill 4,527.3   4,527.3   $ 4,514.1  
Paycor HCM, Inc [Member]            
Supplemental Information [Line Items]            
Goodwill 6.5   6.5     $ 2,594.1
Write-down of building     4.9      
Net of deferred taxes $ 1.9   $ 1.9      
Revolving Credit Facility [Member]            
Supplemental Information [Line Items]            
Weighted-average interest rate 3.53%   3.53%   3.87%  
Unused amount available $ 2,000.0   $ 2,000.0      
Standby Letters of Credit [Member]            
Supplemental Information [Line Items]            
Maximum borrowing capacity 172.9   172.9   $ 165.0  
Amounts outstanding $ 0.0 $ 0.0 $ 0.0 $ 0.0 $ 0.0  
Standby Letters of Credit [Member] | Minimum [Member]            
Supplemental Information [Line Items]            
Expiration date of credit facility     Dec. 01, 2025      
Standby Letters of Credit [Member] | Maximum [Member]            
Supplemental Information [Line Items]            
Expiration date of credit facility     Feb. 28, 2027