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FAIR VALUE MEASUREMENTS - Recurring Fair Value Measurements (Details) - Fair Value, Measurements, Recurring - USD ($)
$ in Thousands
May 02, 2020
Aug. 03, 2019
Prepaid expenses and other current assets | Fair Value, Inputs, Level 1    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Mutual funds   $ 7
Prepaid expenses and other current assets | Fair Value, Inputs, Level 1 | Foreign exchange derivatives | Not Designated as Hedging Instrument [Member]    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap assets $ 0  
Prepaid expenses and other current assets | Fair Value, Inputs, Level 1 | Interest rate swaps | Designated as Hedging Instrument    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap assets   0
Swap liabilities   0
Prepaid expenses and other current assets | Fair Value, Inputs, Level 2    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Mutual funds   0
Prepaid expenses and other current assets | Fair Value, Inputs, Level 2 | Foreign exchange derivatives | Not Designated as Hedging Instrument [Member]    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap assets 756  
Prepaid expenses and other current assets | Fair Value, Inputs, Level 2 | Interest rate swaps | Designated as Hedging Instrument    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap assets   389
Swap liabilities   16,360
Prepaid expenses and other current assets | Fair Value, Inputs, Level 3    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Mutual funds   0
Prepaid expenses and other current assets | Fair Value, Inputs, Level 3 | Foreign exchange derivatives | Not Designated as Hedging Instrument [Member]    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap assets 0  
Prepaid expenses and other current assets | Fair Value, Inputs, Level 3 | Interest rate swaps | Designated as Hedging Instrument    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap assets   0
Swap liabilities   0
Other assets | Fair Value, Inputs, Level 1    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Mutual funds 1,715 1,799
Other assets | Fair Value, Inputs, Level 1 | Interest rate swaps | Designated as Hedging Instrument    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap assets   0
Other assets | Fair Value, Inputs, Level 2    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Mutual funds 0 0
Other assets | Fair Value, Inputs, Level 2 | Interest rate swaps | Designated as Hedging Instrument    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap assets   145
Other assets | Fair Value, Inputs, Level 3    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Mutual funds 0 0
Other assets | Fair Value, Inputs, Level 3 | Interest rate swaps | Designated as Hedging Instrument    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap assets   0
Accrued expenses and other current liabilities | Fair Value, Inputs, Level 1 | Interest rate swaps | Designated as Hedging Instrument    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap liabilities 0  
Accrued expenses and other current liabilities | Fair Value, Inputs, Level 1 | Fuel derivatives | Not Designated as Hedging Instrument [Member]    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap liabilities 0  
Accrued expenses and other current liabilities | Fair Value, Inputs, Level 2 | Interest rate swaps | Designated as Hedging Instrument    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap liabilities 45,684  
Accrued expenses and other current liabilities | Fair Value, Inputs, Level 2 | Fuel derivatives | Not Designated as Hedging Instrument [Member]    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap liabilities 2,424  
Accrued expenses and other current liabilities | Fair Value, Inputs, Level 3 | Interest rate swaps | Designated as Hedging Instrument    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap liabilities 0  
Accrued expenses and other current liabilities | Fair Value, Inputs, Level 3 | Fuel derivatives | Not Designated as Hedging Instrument [Member]    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap liabilities 0  
Other long-term liabilities | Fair Value, Inputs, Level 1 | Interest rate swaps | Designated as Hedging Instrument    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap liabilities 0 0
Other long-term liabilities | Fair Value, Inputs, Level 2 | Interest rate swaps | Designated as Hedging Instrument    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap liabilities 94,745 60,737
Other long-term liabilities | Fair Value, Inputs, Level 3 | Interest rate swaps | Designated as Hedging Instrument    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Swap liabilities $ 0 $ 0