NOTES PAYABLE (Notes)	9 Months Ended
Apr. 28, 2018
Debt Disclosure [Abstract]
NOTES PAYABLE	NOTES PAYABLE On April 29, 2016, the Company entered into the Third Amended and Restated Loan and Security Agreement (the "Third A&R Credit Agreement") amending and restating certain terms and provisions of its revolving credit facility which increased the maximum borrowings under the amended and restated revolving credit facility and extended the maturity date to April 29, 2021. Up to $850.0 million is available to the Company's U.S. subsidiaries and up to $50.0 million is available to UNFI Canada. After giving effect to the Third A&R Credit Agreement, the amended and restated revolving credit facility provides an option to increase the U.S. or Canadian revolving commitments by up to an additional $600.0 million in the aggregate (but in not less than $10.0 million increments) subject to certain customary conditions and the lenders committing to provide the increase in funding. The borrowings of the U.S. portion of the amended and restated revolving credit facility, after giving effect to the Third A&R Credit Agreement, accrued interest at the base rate plus an applicable margin of 0.25% or LIBOR rate plus an applicable margin of 1.25% for the twelve-month period ended April 29, 2017. After this period, the interest on the U.S. borrowings is accrued at the Company's option, at either (i) a base rate (generally defined as the highest of (x) the Bank of America Business Capital prime rate, (y) the average overnight federal funds effective rate plus one-half percent (0.50%) per annum and (z) one-month LIBOR plus one percent (1%) per annum) plus an applicable margin that varies depending on daily average aggregate availability, or (ii) the LIBOR rate plus an applicable margin that varies depending on daily average aggregate availability. The borrowings on the Canadian portion of the credit facility accrued interest at the Canadian prime rate plus an applicable margin of 0.25% or a bankers' acceptance equivalent rate plus an applicable margin of 1.25% for the twelve-month period ended April 29, 2017. After this period, the borrowings on the Canadian portion of the credit facility accrue interest, at the Company's option, at either (i) a Canadian prime rate (generally defined as the highest of (x) 0.50% over 30-day Reuters Canadian Deposit Offering Rate ("CDOR") for bankers' acceptances, (y) the prime rate of Bank of America, N.A.'s Canada branch, and (z) a bankers' acceptance equivalent rate for a one month interest period plus 1.00%) plus an applicable margin that varies depending on daily average aggregate availability, or (ii) a bankers' acceptance equivalent rate of the rate of interest per annum equal to the annual rates applicable to Canadian Dollar bankers' acceptances on the "CDOR Page" of Reuter Monitor Money Rates Service, plus five basis points, and an applicable margin that varies depending on daily average aggregate availability. Unutilized commitments are subject to an annual fee in the amount of 0.30% if the total outstanding borrowings are less than 25% of the aggregate commitments, or a per annum fee of 0.25% if such total outstanding borrowings are 25% or more of the aggregate commitments. The Company is also required to pay a letter of credit fronting fee to each letter of credit issuer equal to 0.125% per annum of the stated amount of each such letter of credit (or such other amount as may be mutually agreed by the borrowers under the facility and the applicable letter of credit issuer), as well as a fee to all lenders equal to the applicable margin for LIBOR or bankers’ acceptance equivalent rate loans, as applicable, times the average daily stated amount of all outstanding letters of credit. As of April 28, 2018, the Company's borrowing base, which is calculated based on eligible accounts receivable and inventory levels, net of $4.2 million of reserves, was $887.2 million. As of April 28, 2018, the Company had $329.0 million of borrowings outstanding under the Company's amended and restated revolving credit facility and $29.7 million in letter of credit commitments which reduced the Company's available borrowing capacity under its revolving credit facility on a dollar for dollar basis. The Company's resulting remaining availability was $528.5 million as of April 28, 2018. The revolving credit facility, as amended and restated, subjects the Company to a springing minimum fixed charge coverage ratio (as defined in the Third A&R Credit Agreement) of 1.0 to 1.0 calculated at the end of each of our fiscal quarters on a rolling four quarter basis when the adjusted aggregate availability (as defined in the Third A&R Credit Agreement) is less than the greater of (i) $60.0 million and (ii) 10% of the aggregate borrowing base. The Company was not subject to the fixed charge coverage ratio covenant under the Third A&R Credit Agreement during the third quarter of fiscal 2018. The revolving credit facility also allows for the lenders thereunder to syndicate the credit facility to other banks and lending institutions. The Company has pledged the majority of its and its subsidiaries' accounts receivable and inventory for its obligations under the amended and restated revolving credit facility.

NOTES PAYABLE

On April 29, 2016, the Company entered into the Third Amended and Restated Loan and Security Agreement (the "Third A&R Credit Agreement") amending and restating certain terms and provisions of its revolving credit facility which increased the maximum borrowings under the amended and restated revolving credit facility and extended the maturity date to April 29, 2021. Up to $850.0 million is available to the Company's U.S. subsidiaries and up to $50.0 million is available to UNFI Canada. After giving effect to the Third A&R Credit Agreement, the amended and restated revolving credit facility provides an option to increase the U.S. or Canadian revolving commitments by up to an additional $600.0 million in the aggregate (but in not less than $10.0 million increments) subject to certain customary conditions and the lenders committing to provide the increase in funding.

The borrowings of the U.S. portion of the amended and restated revolving credit facility, after giving effect to the Third A&R Credit Agreement, accrued interest at the base rate plus an applicable margin of 0.25% or LIBOR rate plus an applicable margin of 1.25% for the twelve-month period ended April 29, 2017. After this period, the interest on the U.S. borrowings is accrued at the Company's option, at either (i) a base rate (generally defined as the highest of (x) the Bank of America Business Capital prime rate, (y) the average overnight federal funds effective rate plus one-half percent (0.50%) per annum and (z) one-month LIBOR plus one percent (1%) per annum) plus an applicable margin that varies depending on daily average aggregate availability, or (ii) the LIBOR rate plus an applicable margin that varies depending on daily average aggregate availability. The borrowings on the Canadian portion of the credit facility accrued interest at the Canadian prime rate plus an applicable margin of 0.25% or a bankers' acceptance equivalent rate plus an applicable margin of 1.25% for the twelve-month period ended April 29, 2017. After this period, the borrowings on the Canadian portion of the credit facility accrue interest, at the Company's option, at either (i) a Canadian prime rate (generally defined as the highest of (x) 0.50% over 30-day Reuters Canadian Deposit Offering Rate ("CDOR") for bankers' acceptances, (y) the prime rate of Bank of America, N.A.'s Canada branch, and (z) a bankers' acceptance equivalent rate for a one month interest period plus 1.00%) plus an applicable margin that varies depending on daily average aggregate availability, or (ii) a bankers' acceptance equivalent rate of the rate of interest per annum equal to the annual rates applicable to Canadian Dollar bankers' acceptances on the "CDOR Page" of Reuter Monitor Money Rates Service, plus five basis points, and an applicable margin that varies depending on daily average aggregate availability. Unutilized commitments are subject to an annual fee in the amount of 0.30% if the total outstanding borrowings are less than 25% of the aggregate commitments, or a per annum fee of 0.25% if such total outstanding borrowings are 25% or more of the aggregate commitments. The Company is also required to pay a letter of credit fronting fee to each letter of credit issuer equal to 0.125% per annum of the stated amount of each such letter of credit (or such other amount as may be mutually agreed by the borrowers under the facility and the applicable letter of credit issuer), as well as a fee to all lenders equal to the applicable margin for LIBOR or bankers’ acceptance equivalent rate loans, as applicable, times the average daily stated amount of all outstanding letters of credit.

As of April 28, 2018, the Company's borrowing base, which is calculated based on eligible accounts receivable and inventory levels, net of $4.2 million of reserves, was $887.2 million. As of April 28, 2018, the Company had $329.0 million of borrowings outstanding under the Company's amended and restated revolving credit facility and $29.7 million in letter of credit commitments which reduced the Company's available borrowing capacity under its revolving credit facility on a dollar for dollar basis. The Company's resulting remaining availability was $528.5 million as of April 28, 2018.

The revolving credit facility, as amended and restated, subjects the Company to a springing minimum fixed charge coverage ratio (as defined in the Third A&R Credit Agreement) of 1.0 to 1.0 calculated at the end of each of our fiscal quarters on a rolling four quarter basis when the adjusted aggregate availability (as defined in the Third A&R Credit Agreement) is less than the greater of (i) $60.0 million and (ii) 10% of the aggregate borrowing base. The Company was not subject to the fixed charge coverage ratio covenant under the Third A&R Credit Agreement during the third quarter of fiscal 2018.

The revolving credit facility also allows for the lenders thereunder to syndicate the credit facility to other banks and lending institutions. The Company has pledged the majority of its and its subsidiaries' accounts receivable and inventory for its obligations under the amended and restated revolving credit facility.