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DEBT (Details) - USD ($)
3 Months Ended 6 Months Ended
Oct. 31, 2016
Aug. 01, 2015
Aug. 01, 2012
Oct. 01, 2016
Oct. 01, 2016
Jun. 30, 2014
Debt Instrument [Line Items]            
Debt outstanding       $ 389,000,000 $ 389,000,000  
Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum            
Debt Instrument [Line Items]            
Interest rate   1.125%        
Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum            
Debt Instrument [Line Items]            
Interest rate   1.50%        
Term Loan [Member]            
Debt Instrument [Line Items]            
Face amount of debt     $ 475,000,000      
Principal repayments       $ 11,900,000 $ 19,000,000  
Revolving Credit Facility [Member]            
Debt Instrument [Line Items]            
Maximum borrowing capacity     $ 50,000,000     $ 100,000,000
Term of credit facilities     5 years      
Revolving Credit Facility [Member] | Subsequent Event [Member]            
Debt Instrument [Line Items]            
Principal repayments $ 20,000,000