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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Nov. 29, 2020
Nov. 24, 2019
Nov. 29, 2020
Nov. 24, 2019
May 31, 2020
Income Tax Disclosure [Abstract]          
Income tax benefit $ (2,700) $ (1,165) $ (7,009) $ (2,530)  
Effective tax rate     22.00% 18.00%  
Unrecognized tax benefits 900   $ 900   $ 800
Unrecognized tax benefits that would result in an adjustment to effective tax rate $ 800   $ 800   $ 700