Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Narrative) (Details)

v3.21.4
Fair Value Measurements (Narrative) (Details) - USD ($)
$ in Millions
Nov. 30, 2021
May 31, 2021
Senior Notes, Series A [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of long-term borrowings $ 437.7 $ 450.2
Senior Notes, Series B [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of long-term borrowings $ 449.9 $ 457.7