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FAIR VALUE MEASUREMENTS OF FINANCIAL INSTRUMENTS - Recurring Fair Value Measurements (Details) - Fair value, measurements, recurring - USD ($) $ in Thousands | Jan. 30, 2021 | Aug. 01, 2020
--- | --- | ---
Level 1 | Other long-term assets |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Mutual funds | $ 1,592 | $ 1,678
Level 1 | Foreign currency derivatives | Prepaid expenses and other current assets | Not designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap assets |  | 0
Level 1 | Foreign currency derivatives | Prepaid expenses and other current assets | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap assets | 0 | 0
Level 1 | Foreign currency derivatives | Accrued expenses and other current liabilities | Not designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | 0 |
Level 1 | Foreign currency derivatives | Accrued expenses and other current liabilities | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | 0 | 0
Level 1 | Fuel derivatives | Prepaid expenses and other current assets | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap assets | 0 | 0
Level 1 | Fuel derivatives | Other long-term assets | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap assets |  | 0
Level 1 | Fuel derivatives | Accrued expenses and other current liabilities | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | 0 | 0
Level 1 | Interest rate swaps | Accrued expenses and other current liabilities | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | 0 | 0
Level 1 | Interest rate swaps | Other long-term liabilities | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | 0 | 0
Level 2 | Other long-term assets |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Mutual funds | 0 | 0
Level 2 | Foreign currency derivatives | Prepaid expenses and other current assets | Not designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap assets |  | 26
Level 2 | Foreign currency derivatives | Prepaid expenses and other current assets | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap assets | 63 | 94
Level 2 | Foreign currency derivatives | Accrued expenses and other current liabilities | Not designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | 3 |
Level 2 | Foreign currency derivatives | Accrued expenses and other current liabilities | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | 774 | 357
Level 2 | Fuel derivatives | Prepaid expenses and other current assets | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap assets | 680 | 36
Level 2 | Fuel derivatives | Other long-term assets | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap assets |  | 23
Level 2 | Fuel derivatives | Accrued expenses and other current liabilities | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | 1 | 197
Level 2 | Interest rate swaps | Accrued expenses and other current liabilities | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | 34,779 | 46,743
Level 2 | Interest rate swaps | Other long-term liabilities | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | 66,374 | 91,994
Level 3 | Other long-term assets |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Mutual funds | 0 | 0
Level 3 | Foreign currency derivatives | Prepaid expenses and other current assets | Not designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap assets |  | 0
Level 3 | Foreign currency derivatives | Prepaid expenses and other current assets | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap assets | 0 | 0
Level 3 | Foreign currency derivatives | Accrued expenses and other current liabilities | Not designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | 0 |
Level 3 | Foreign currency derivatives | Accrued expenses and other current liabilities | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | 0 | 0
Level 3 | Fuel derivatives | Prepaid expenses and other current assets | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap assets | 0 | 0
Level 3 | Fuel derivatives | Other long-term assets | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap assets |  | 0
Level 3 | Fuel derivatives | Accrued expenses and other current liabilities | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | 0 | 0
Level 3 | Interest rate swaps | Accrued expenses and other current liabilities | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | 0 | 0
Level 3 | Interest rate swaps | Other long-term liabilities | Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Swap liabilities | $ 0 | $ 0

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