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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jan. 25, 2020
Jan. 25, 2020
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]    
Tax of amortization of pension actuarial loss $ 44 $ 88
Tax on pension settlement loss 375 (375)
Tax on pension remeasurement $ 303 $ 303