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COMPREHENSIVE (LOSS) INCOME AND ACCUMULATED OTHER COMPREHENSIVE LOSS - Reclassification out of Other Comprehensive Loss (Details) - USD ($) $ in Thousands | 3 Months Ended
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Oct. 31, 2020 | Nov. 02, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Interest expense, net | $ (12,036) | $ (2,370)
Cost of sales | 5,706,108 | 5,389,401
Benefit for income taxes | (991) | (66,955)
Net income (loss) | 324 | (383,408)
Expected reclassification | 45,200 |
Reclassification out of accumulated other comprehensive income | Benefit Plans |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Net periodic benefit income, excluding service cost | (309) | 774
Benefit for income taxes | 103 | (202)
Net income (loss) | (206) | 572
Reclassification out of accumulated other comprehensive income | Cash Flow Derivatives | Swap Agreements |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Interest expense, net | 12,036 | 2,370
Benefit for income taxes | (3,230) | (428)
Net income (loss) | 8,806 | 1,942
Reclassification out of accumulated other comprehensive income | Cash Flow Derivatives | Other Cash Flow Derivatives |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Cost of sales | 169 | 0
Benefit for income taxes | (45) | 0
Net income (loss) | $ 124 | $ 0

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