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Stock-Based Compensation - Schedule of Pre-Tax Compensation Expense and Related Tax Benefits (Details) - USD ($)
$ in Millions
12 Months Ended
May 30, 2020
Jun. 01, 2019
Jun. 02, 2018
Share-based Compensation Arrangement by Share-based Payment Award      
Stock-based compensation $ 2.7 $ 7.3 $ 7.7
Tax benefit 0.5 1.6 2.3
Employee stock purchase program      
Share-based Compensation Arrangement by Share-based Payment Award      
Stock-based compensation 0.3 0.3 0.3
Stock option plans      
Share-based Compensation Arrangement by Share-based Payment Award      
Stock-based compensation 0.6 (0.4) 2.6
Restricted stock units      
Share-based Compensation Arrangement by Share-based Payment Award      
Stock-based compensation 3.9 4.6 3.9
Performance share units      
Share-based Compensation Arrangement by Share-based Payment Award      
Stock-based compensation $ (2.1) $ 2.8 $ 0.9