Quarterly report pursuant to Section 13 or 15(d)

Supplemental Information (Narrative) (Details)

v3.23.4
Supplemental Information (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Nov. 30, 2023
Nov. 30, 2022
Nov. 30, 2023
Nov. 30, 2022
May 31, 2023
Depreciation expense $ 32.0 $ 31.7 $ 62.4 $ 63.1  
Amortization expense 12.9 12.6 23.7 25.2  
Impairment loss relates to goodwill or intangible assets     0.0 0.0  
Revolving Credit Facility [Member]          
Unused amount available $ 2,000.0   $ 2,000.0    
Weighted-average interest rate 6.28%   6.28%   5.83%
Standby Letters of Credit [Member]          
Maximum borrowing capacity $ 141.3   $ 141.3   $ 141.7
Amounts outstanding $ 0.0 $ 0.0 $ 0.0 $ 0.0 $ 0.0
Standby Letters of Credit [Member] | Minimum [Member]          
Expiration date of credit facility     Dec. 05, 2023    
Standby Letters of Credit [Member] | Maximum [Member]          
Expiration date of credit facility     Oct. 09, 2025