Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Feb. 29, 2020	Feb. 23, 2019	Feb. 29, 2020	Feb. 23, 2019
Disaggregation of revenue
Net sales	$ 227,101	$ 123,800	$ 379,254	$ 244,731
North America
Disaggregation of revenue
Net sales	131,435	117,946	259,247	232,552
International
Disaggregation of revenue
Net sales	7,361	5,854	14,620	12,179
Atkins
Disaggregation of revenue
Net sales	138,796	123,800	273,867	244,731
Acquisition of Quest \| Quest
Disaggregation of revenue
Net sales	$ 88,305	$ 0	$ 105,387	$ 0

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration