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Stock-Based Compensation (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Nov. 28, 2020
Nov. 30, 2019
Nov. 28, 2020
Nov. 30, 2019
Stock-Based Compensation [Abstract]        
Stock-based compensation expense $ 2.4 $ 2.8 $ 3.9 $ 5.4
Related income tax effect $ 0.6 $ 0.6 $ 0.9 $ 1.2