Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Long-Term Debt - Components of Long-Term Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 25, 2018	Aug. 31, 2019	Sep. 21, 2018	Nov. 08, 2016
Debt Instrument [Line Items]
Long-term debt, gross	$ 298,532	$ 260,000
Less: debt issuance cost, net	(7,091)	(5,706)
Long-term debt	291,441	254,294
Less: current maturities	0	(8,892)
Long-term debt, less current maturities	$ 291,441	245,402
ABL
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			$ 165,000	$ 125,000
Debt Instrument, Term	5 years
Long-term debt, gross	$ 38,532	0
Term Loan
Debt Instrument [Line Items]
Debt Instrument, Term	7 years
Long-term debt, gross	$ 260,000	260,000
Long-term Debt, Fair Value		$ 255,800