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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jan. 29, 2022 | Jan. 23, 2021 | Jan. 29, 2022 | Jan. 23, 2021
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] |  |  |  |
Tax expense (benefit) on unrealized losses on interest rate swaps | $ 324 | $ 218 | $ 663 | $ 479
Tax of amortization of pension actuarial loss | $ 38 | $ 45 | $ 76 | $ 91

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