FAIR VALUE MEASUREMENTS OF FINANCIAL INSTRUMENTS - Recurring Fair Value Measurements (Details) - Fair value, measurements, recurring - USD ($) $ in Thousands	Oct. 31, 2020	Aug. 01, 2020
Level 1 | Other assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Mutual funds	$ 1,635	$ 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
Level 1 | Fuel derivatives | Other 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 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	70	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	15
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	311	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		36
Level 2 | Fuel derivatives | Other 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	699	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	37,526	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	73,714	91,994
Level 3 | Other 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
Level 3 | Fuel derivatives | Other 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