Condensed Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	May 30, 2020	May 25, 2019	May 30, 2020	May 25, 2019
Income Statement [Abstract]
Net revenues	$ 402,458	$ 528,940	$ 1,617,726	$ 1,455,278
Cost of goods sold	370,434	442,356	1,427,307	1,231,269
Gross profit	32,024	86,584	190,419	224,009
Selling, general, and administrative expenses	33,271	35,332	126,540	106,303
Amortization of intangible assets	6,926	2,278	18,514	7,204
Total operating expenses	40,197	37,610	145,054	113,507
Operating (loss) income	(8,173)	48,974	45,365	110,502
Interest expense	8,440	4,446	23,140	13,293
Non-operating income	(74)	(360)	(460)	(1,330)
(Loss) income before income taxes	(16,539)	44,888	22,685	98,539
(Benefit) provision for income taxes	(4,186)	8,717	3,702	18,609
Net (loss) income	$ (12,353)	$ 36,171	$ 18,983	$ 79,930
Income (loss) income per common share:
Basic (in dollars per share)	$ (0.37)	$ 1.15	$ 0.57	$ 2.53
Diluted (in dollars per share)	$ (0.37)	$ 1.14	$ 0.57	$ 2.52
Weighted average common shares outstanding:
Basic (in shares)	33,625	31,493	33,102	31,546
Diluted (in shares)	33,625	31,644	33,289	31,722
Other comprehensive income (loss):
Amortization of net actuarial loss (net of tax of $3, $3, $9, and $8)	$ 8	$ 8	$ 24	$ 24
Interest rate swap activity (net of tax of $141, $114, $163, and $327)	(432)		(500)
Interest rate swap activity (net of tax of $141, $114, $163, and $327)		(362)		(1,018)
Total other comprehensive loss	(424)	(354)	(476)	(994)
Comprehensive (loss) income	$ (12,777)	$ 35,817	$ 18,507	$ 78,936