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Long-Term Debt - Components of Long-Term Debt (Details) - USD ($) $ in Thousands		12 Months Ended
	Nov. 08, 2016	Aug. 25, 2018	Aug. 26, 2017
Debt Instrument [Line Items]
Long-term debt, gross		$ 298,532	$ 284,000
Less: debt issuance cost, net		(7,091)	(9,424)
Long-term debt		291,441	274,576
Less: current maturities		0	(2,850)
Long-term debt, less current maturities		$ 291,441	271,726
Line of Credit [Member] \| ABL
Debt Instrument [Line Items]
Debt Instrument, Term		5 years
Long-term debt, gross		$ 38,532	0
Line of Credit [Member] \| Term Loan
Debt Instrument [Line Items]
Debt Instrument, Term		7 years
Long-term debt, gross		$ 260,000	$ 284,000
JPMorgan Chase [Member] \| Line of Credit [Member] \| ABL
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 125,000
Debt Instrument, Term	5 years
JPMorgan Chase [Member] \| Line of Credit [Member] \| Term Loan
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 300,000