Quarterly report pursuant to Section 13 or 15(d)

Supplemental Information (Narrative) (Details)

v3.20.2
Supplemental Information (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended
Aug. 31, 2020
Aug. 31, 2019
May 31, 2020
Amortization of operating lease right-of-use assets $ 24.4    
Loss on disposal 5.1    
Depreciation expense 31.3 $ 31.8  
Amortization expense 18.3 21.1  
Impairment loss relates to goodwill or intangible assets 0.0 0.0  
Revolving Credit Facility [Member]      
Unused amount available $ 1,700.0    
Weighted-average interest rate 1.24%   1.28%
Standby Letters of Credit [Member]      
Maximum borrowing capacity $ 147.9   $ 147.9
Amounts outstanding $ 0.0 $ 0.0 $ 0.0
Standby Letters of Credit [Member] | Minimum [Member]      
Expiration date Nov. 30, 2020    
Standby Letters of Credit [Member] | Maximum [Member]      
Expiration date Jul. 15, 2022