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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 |  |  |  |  |

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