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v3.8.0.1

NOTES PAYABLE (Details) $ in Thousands | Apr. 30, 2016 quarter | Apr. 28, 2018 USD ($) | Jul. 29, 2017 USD ($) | Apr. 29, 2016 USD ($) | May 28, 2014
--- | --- | --- | --- | --- | ---
Line of Credit Facility [Line Items] |  |  |  |  |
Debt Instrument, Fee Amount | 0.125% |  |  |  |
Notes Payable |  | $ 329,000 | $ 223,612 |  |
CANADA |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Maximum Borrowing Base |  |  |  | $ 50,000 |
UNITED STATES |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Maximum Borrowing Base |  |  |  | 850,000 |
Minimum |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Maximum Borrowing Base |  |  |  | 10,000 |
Maximum |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Maximum Borrowing Base |  |  |  | 600,000 |
Amended and restated revolving credit facility |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.30% |  |  |  |
Debt Instrument, Covenant Fixed Charge Coverage Ratio Minimum, Numerator | 1.0 |  |  |  |
Debt Instrument, Covenant Fixed Charge Coverage Ratio Minimum, Denominator | 1.0 |  |  |  |
Line of Credit Facility, Maximum Percentage of Aggregate Availability of the Aggregate Borrowing Base | 10.00% |  |  |  |
Amended and restated revolving credit facility | UNITED STATES | Federal Funds Effective Rate |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Debt Instrument, Description of Variable Rate Basis | federal funds effective rate |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.50% |  |  |  |
Amended and restated revolving credit facility | UNITED STATES | LIBOR |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Debt Instrument, Description of Variable Rate Basis | LIBOR |  |  |  |
initial applicable margin | 1.25% |  |  |  |
Amended and restated revolving credit facility | UNITED STATES | One-month LIBOR |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Debt Instrument, Description of Variable Rate Basis | one-month LIBOR |  |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.25% |  |  |  |
Amended and restated revolving credit facility | UNITED STATES | Reuters Canadian Deposit Offering Rate |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Debt Instrument, Description of Variable Rate Basis | Reuters Canadian Deposit Offering Rate ("CDOR") |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.50% |  |  |  |
Amended and restated revolving credit facility | UNITED STATES | Debt Instrument Variable Rate Bankers Acceptance Equivalent for One Month Interest Period [Member] |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Debt Instrument, Description of Variable Rate Basis | bankers' acceptance equivalent rate for a one month interest period |  |  |  |
Amended and restated revolving credit facility | Minimum |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Line of Credit Facility Percentage of Average Daily Balance of Amount Used | 25.00% |  |  |  |
Line of Credit Facility, Maximum Aggregate Availability of the Aggregate Borrowing Base |  |  |  | $ 60,000 |
Amended and restated revolving credit facility |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Debt Instrument, Fixed Charge Coverage Ratio, Number of Quarters | quarter | 4 |  |  |  |
Line of Credit, Amount of Reserves Affecting Current, Borrowing Capacity |  | 4,200 |  |  |
Line of Credit Facility, Current Borrowing Capacity |  | 887,200 |  |  |
Letters of Credit Outstanding, Amount |  | 29,700 |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  | $ 528,500 |  |  |
Amended and restated revolving credit facility | CANADA |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.25% |  |  |  |
Amended and restated revolving credit facility | UNITED STATES |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.25% |  |  |  |
Debt Instrument Variable Rate One Month LIBOR [Member] | Amended and restated revolving credit facility | UNITED STATES |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.00% |  |  |  |
Debt Instrument, Variable Rate LIBOR [Member] | Amended and restated revolving credit facility | UNITED STATES |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Debt Instrument Initial Applicable Margin |  |  |  |  | 1.25%

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