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Fair Value Measurements Fair Value Measurements - Schedule of Long-term Debt (Details) - USD ($)
$ in Millions
Feb. 29, 2020
Jun. 01, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Carrying value $ 275.0 $ 281.9
Carrying value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Carrying value 277.5 285.0
Fair value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value $ 279.8 $ 287.8