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CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended
Aug. 25, 2019
Aug. 26, 2018
Income Statement [Abstract]    
Change in net unrealized gains on interest rate swap, tax $ 265  
Change in net unrealized gains on interest rate swap, tax   $ 27