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FAIR VALUE MEASUREMENTS (Tables) | 12 Months Ended
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Jul. 28, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Derivative Instruments and Hedging Activities Disclosure [Text Block] |
Swap Maturity |  | Notional Value (in millions) |  | Pay Fixed Rate |  | Receive Floating Rate |  | Floating Rate Reset Terms
June 9, 2019 |  | $ | 50.0 |  |  | 0.8725 | % |  | One-Month LIBOR |  | Monthly
June 24, 2019 |  | $ | 50.0 |  |  | 0.7265 | % |  | One-Month LIBOR |  | Monthly
April 29, 2021 |  | $ | 25.0 |  |  | 1.0650 | % |  | One-Month LIBOR |  | Monthly
April 29, 2021 |  | $ | 25.0 |  |  | 0.9260 | % |  | One-Month LIBOR |  | Monthly
August 3, 2022 |  | $ | 112.5 |  |  | 1.7950 | % |  | One-Month LIBOR |  | Monthly
Fair Value Disclosures [Text Block] |
|  | Fiscal Year Ended
|  | July 28, 2018 |  | July 29, 2017 |  | July 30, 2016
(In thousands) |  | Interest Expense |  | Interest Expense |  | Interest Expense
Total amounts of income and expense line items presented in the consolidated results of operations in which the effects of cash flow hedges are recorded |  | $ | 16,471 |  |  | $ | 17,114 |  |  | $ | 16,259 |
Gain or (loss) on cash flow hedging relationships: |  |  |  |  |  |
Gain or (loss) reclassified from Comprehensive Income into income |  | 827 |  |  | (1,462 | ) |  | (2,082 | )
FAIR VALUE MEASUREMENTS The Company utilizes ASC 820, Fair Value Measurements and Disclosures ("ASC 820"), for financial assets and liabilities and for non-financial assets and liabilities that are recognized or disclosed at fair value on at least an annual basis. ASC 820 defines fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required or permitted to be recorded at fair value, the Company considers the principal or most advantageous market in which it would transact and considers assumptions that market participants would use when pricing the asset or liability, such as inherent risk, transfer restrictions, and risk of nonperformance. ASC 820 establishes a fair value hierarchy that requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. ASC 820 establishes three levels of inputs that may be used to measure fair value:
• | Level 1 Inputs—Unadjusted quoted prices in active markets for identical assets or liabilities.
• | Level 2 Inputs—Inputs other than quoted prices included in Level 1 that are either directly or indirectly observable through correlation with market data. These include quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; and inputs to valuation models or other pricing methodologies that do not require significant judgment because the inputs used in the model, such as interest rates and volatility, can be corroborated by readily observable market data.
• | Level 3 Inputs—One or more significant inputs that are unobservable and supported by little or no market activity, and that reflect the use of significant management judgment. Level 3 assets and liabilities include those whose fair value measurements are determined using pricing models, discounted cash flow methodologies or similar valuation techniques, and significant management judgment or estimation.
Hedging of Interest Rate Risk The Company manages its debt portfolio with interest rate swaps to achieve an overall desired position of fixed and floating rates. Details of outstanding swap agreements as of July 28, 2018, which are all pay fixed and receive floating, are as follows:
Swap Maturity |  | Notional Value (in millions) |  | Pay Fixed Rate |  | Receive Floating Rate |  | Floating Rate Reset Terms
June 9, 2019 |  | $ | 50.0 |  |  | 0.8725 | % |  | One-Month LIBOR |  | Monthly
June 24, 2019 |  | $ | 50.0 |  |  | 0.7265 | % |  | One-Month LIBOR |  | Monthly
April 29, 2021 |  | $ | 25.0 |  |  | 1.0650 | % |  | One-Month LIBOR |  | Monthly
April 29, 2021 |  | $ | 25.0 |  |  | 0.9260 | % |  | One-Month LIBOR |  | Monthly
August 3, 2022 |  | $ | 112.5 |  |  | 1.7950 | % |  | One-Month LIBOR |  | Monthly
Interest rate swap agreements are entered into for periods consistent with related underlying exposures and do not constitute positions independent of those exposures. The Company’s interest rate swap agreements are designated as cash flow hedges at July 28, 2018. The Company performs an initial quantitative assessment of hedge effectiveness using the “Hypothetical Derivative Method” described in ASC 815 in the period in which the hedging transaction is entered into. Under this method, the Company assesses the effectiveness of each hedging relationship by comparing the changes in cash flows of the derivative hedging instrument with the changes in cash flows of the designated hedged transactions. In future reporting periods the Company performs a qualitative analysis for quarterly prospective and retrospective assessments of hedge effectiveness. The Company also monitors the risk of counterparty default on an ongoing basis and noted that the counterparties are reputable financial institutions. The entire change in the fair value of the derivative is initially reported in other comprehensive income (outside of earnings) and subsequently reclassified to earnings in interest expense when the hedged transactions affect earnings. The location and amount of gains or losses recognized in the Consolidated Statements of Income for cash flow hedging relationships for each of the periods, presented on a pretax basis, are as follows:
|  | Fiscal Year Ended
|  | July 28, 2018 |  | July 29, 2017 |  | July 30, 2016
(In thousands) |  | Interest Expense |  | Interest Expense |  | Interest Expense
Total amounts of income and expense line items presented in the consolidated results of operations in which the effects of cash flow hedges are recorded |  | $ | 16,471 |  |  | $ | 17,114 |  |  | $ | 16,259 |
Gain or (loss) on cash flow hedging relationships: |  |  |  |  |  |
Gain or (loss) reclassified from Comprehensive Income into income |  | 827 |  |  | (1,462 | ) |  | (2,082 | )
Financial Instruments The following table provides the fair value hierarchy for financial assets and liabilities measured on a recurring basis as of July 28, 2018 and July 29, 2017:
|  | Fair Value at July 28, 2018 |  | Fair Value at July 29, 2017
(In thousands) |  | Level 1 |  | Level 2 |  | Level 3 |  | Level 1 |  | Level 2 |  | Level 3
Prepaid Expenses and Other Current Assets: |  |  |  |  |  |  |  |  |  |  |  |
Interest Rate Swap |  | — |  |  | $ | 1,459 |  |  | — |  |  | — |  |  | — |  |  | — |
Other Assets: |  |  |  |  |  |  |  |  |  |  |  |
Interest Rate Swap |  | — |  |  | 5,860 |  |  |  |  | — |  |  | $ | 2,491 |  |  | — |
Accrued Expenses and Other Current Liabilities: |  |  |  |  |  |  |  |  |  |  |  |
Interest Rate Swap |  | — |  |  | — |  |  | — |  |  | — |  |  | (308 | ) |  | — |
The fair value of the Company's other financial instruments including accounts receivable, notes receivable, accounts payable and certain accrued expenses are derived using Level 2 inputs and approximate carrying amounts due to the short-term nature of these instruments. The fair value of notes payable approximate carrying amounts as they are variable rate instruments. The carrying amount of notes payable approximates fair value as interest rates on the Existing ABL Facility approximates current market rates (level 2 criteria). The following estimated fair value amounts have been determined by the Company using available market information and appropriate valuation methodologies taking into account the instruments' interest rate, terms, maturity date and collateral, if any, in comparison to the Company's incremental borrowing rate for similar financial instruments and are therefore deemed Level 2 inputs. However, considerable judgment is required in interpreting market data to develop the estimates of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amounts that the Company could realize in a current market exchange.
|  | July 28, 2018 |  | July 29, 2017
(In thousands) |  | Carrying Value |  | Fair Value |  | Carrying Value |  | Fair Value
Liabilities |  |  |  |  |  |  |  |
Long term debt, including current portion |  | $ | 150,150 |  |  | $ | 155,317 |  |  | $ | 161,991 |  |  | $ | 169,058 |
Fuel Supply Agreements From time to time the Company is a party to fixed price fuel supply agreements. During the fiscal year ended July 28, 2018, the Company did not enter in any such agreements. During the fiscal year ended July 29, 2017, the Company entered into several agreements which required it to purchase a portion of its diesel fuel each month at fixed prices through December 2016. These fixed price fuel agreements qualify for the "normal purchase" exception under ASC 815; therefore, the fuel purchases under these contracts are expensed as incurred and included within operating expenses.
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] |
|  | Fair Value at July 28, 2018 |  | Fair Value at July 29, 2017
(In thousands) |  | Level 1 |  | Level 2 |  | Level 3 |  | Level 1 |  | Level 2 |  | Level 3
Prepaid Expenses and Other Current Assets: |  |  |  |  |  |  |  |  |  |  |  |
Interest Rate Swap |  | — |  |  | $ | 1,459 |  |  | — |  |  | — |  |  | — |  |  | — |
Other Assets: |  |  |  |  |  |  |  |  |  |  |  |
Interest Rate Swap |  | — |  |  | 5,860 |  |  |  |  | — |  |  | $ | 2,491 |  |  | — |
Accrued Expenses and Other Current Liabilities: |  |  |  |  |  |  |  |  |  |  |  |
Interest Rate Swap |  | — |  |  | — |  |  | — |  |  | — |  |  | (308 | ) |  | — |
Schedule of carrying values and estimated fair values of debt instruments |
|  | July 28, 2018 |  | July 29, 2017
(In thousands) |  | Carrying Value |  | Fair Value |  | Carrying Value |  | Fair Value
Liabilities |  |  |  |  |  |  |  |
Long term debt, including current portion |  | $ | 150,150 |  |  | $ | 155,317 |  |  | $ | 161,991 |  |  | $ | 169,058 |

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- Definition The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -URI http://asc.fasb.org/topic&trid=2229140 + Details
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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -URI http://asc.fasb.org/topic&trid=2155941 + Details
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- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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