Basis of Presentation and Principles of Consolidation - Summary of Gross Amounts and Accumulated Amortization of Intangible Assets from Acquisition by Type (Details) - USD ($) $ in Thousands	9 Months Ended
	May 29, 2020	Aug. 30, 2019
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 76,150	$ 76,150
Accumulated amortization	(17,065)	(6,825)
Net	59,085	69,325
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	52,300	52,300
Accumulated amortization	(10,613)	(3,755)
Net	$ 41,687	48,545
Customer Relationships | Minimum
Finite Lived Intangible Assets [Line Items]
Weighted avg.life (yrs)	4 years
Customer Relationships | Maximum
Finite Lived Intangible Assets [Line Items]
Weighted avg.life (yrs)	7 years
Trademarks/Tradename
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 13,100	13,100
Accumulated amortization	(3,614)	(2,172)
Net	$ 9,486	10,928
Trademarks/Tradename | Minimum
Finite Lived Intangible Assets [Line Items]
Weighted avg.life (yrs)	5 years
Trademarks/Tradename | Maximum
Finite Lived Intangible Assets [Line Items]
Weighted avg.life (yrs)	7 years
Technology
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 10,350	10,350
Accumulated amortization	(2,438)	(498)
Net	$ 7,912	9,852
Weighted avg.life (yrs)	4 years
Backlog
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 400	400
Accumulated amortization	$ (400)	$ (400)
Backlog | Maximum
Finite Lived Intangible Assets [Line Items]
Weighted avg.life (yrs)	1 year