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EMPLOYEE STOCK PLANS - Additional Information (Details)
1 Months Ended 6 Months Ended
Nov. 17, 2017
shares
Aug. 10, 2016
Aug. 31, 2017
USD ($)
yr
quarter
shares
Aug. 31, 2016
USD ($)
quarter
shares
Aug. 31, 2015
USD ($)
shares
Dec. 30, 2017
shares
Dec. 29, 2017
$ / shares
Jul. 01, 2017
shares
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Number of additional shares authorized under the Plan (in shares) 8,000,000.0         8,000,000    
Number of shares available under the ESPP (in shares)           16,429,000   13,581,000
Closing price of common stock (in usd per share) | $ / shares             $ 6.74  
Number of shares of common stock subject to in-the-money options (in shares)           800,000    
PSUs | Certain Executive Officers                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Number of granted shares (in shares)     1,100,000 800,000.0 900,000.0      
Aggregate estimated grant date fair value of PSU | $     $ 9,500,000 $ 4,800,000 $ 2,500,000      
Free cash flow requirement | $       $ 25,000,000        
Number of consecutive fiscal quarters | quarter       4        
PSUs | Certain Executive Officers | Vesting over Consecutive Quarters through 2020                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Revenue requirement | $     $ 700,000,000.0          
Percentage of shares that will vest (percent)     33.34%          
Free cash flow requirement | $     $ 100,000,000          
Number of consecutive fiscal quarters | quarter     4          
PSUs | Certain Executive Officers | Vesting upon Achievement of Reveue Target in any Fiscal Year from 2018 through 2020                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Revenue requirement | $     $ 800,000,000.0          
Number of fiscal years | yr     1          
PSUs | Certain Executive Officers | Service-based Condition, Vesting on 1st Anniversary                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Percentage of shares that will vest (percent)     33.34%          
PSUs | Certain Executive Officers | Service-based Condition, Vesting Every 3 Months after 1st Anniversary                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Percentage of shares that will vest (percent)     8.33%          
PSUs | Certain Executive Officers | August 10, 2017                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Percentage of shares that will vest (percent)       25.00%        
PSUs | Certain Executive Officers | Subsequent Quarter over Following Three Years                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Award vesting period       3 years        
Percentage of shares that will vest (percent)       6.25%        
PSUs | Certain Executive Officers | August 10, 2016                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Percentage of shares that will vest (percent)   33.40%            
PSUs | Certain Executive Officers | Subsequent Quarter Over the Next Two Years                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Award vesting period         2 years      
Percentage of shares that will vest (percent)         8.325%      
RSUs                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Award vesting period     4 years 4 years        
RSUs | Certain Executive Officers                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Number of granted shares (in shares)     600,000 800,000.0        
RSUs | Employees                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Number of granted shares (in shares)     1,600,000 2,000,000.0        
Minimum | Stock Options                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Award vesting period           2 years    
Minimum | Restricted Stock Awards / Units Outstanding                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Award vesting period           1 year    
Maximum | Stock Options                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Award vesting period           4 years    
Maximum | Restricted Stock Awards / Units Outstanding                
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]                
Award vesting period           4 years