XML 43 R32.htm IDEA: XBRL DOCUMENT v3.20.2

Basis of Presentation and Description of Business - Additional Information (Detail)	3 Months Ended
	Sep. 24, 2020 Channel
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of distribution channels	3

X

- Definition

Number of distribution channels.

+ References

No definition available.

+ Details

Name:	jbss_NumberOfDistributionChannels
Namespace Prefix:	jbss_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration