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Product Type Sales Mix - Schedule of Sales by Product Type as Percentage of Gross Sales (Detail) | 12 Months Ended
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Jun. 30, 2016 | Jun. 25, 2015 | Jun. 26, 2014
Product Type Reporting Information [Line Items] |  |  |
Total | 100.00% | 100.00% | 100.00%
Peanuts [Member] |  |  |
Product Type Reporting Information [Line Items] |  |  |
Total | 13.90% | 13.70% | 15.10%
Pecans [Member] |  |  |
Product Type Reporting Information [Line Items] |  |  |
Total | 13.10% | 12.70% | 13.60%
Cashews & Mixed Nuts [Member] |  |  |
Product Type Reporting Information [Line Items] |  |  |
Total | 23.30% | 22.00% | 18.70%
Walnuts [Member] |  |  |
Product Type Reporting Information [Line Items] |  |  |
Total | 9.40% | 11.00% | 11.70%
Almonds [Member] |  |  |
Product Type Reporting Information [Line Items] |  |  |
Total | 23.00% | 23.40% | 22.30%
Trail & Snack Mixes [Member] |  |  |
Product Type Reporting Information [Line Items] |  |  |
Total | 12.40% | 12.00% | 11.40%
Other [Member] |  |  |
Product Type Reporting Information [Line Items] |  |  |
Total | 4.90% | 5.20% | 7.20%

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- Definition Percentage Of Gross Product Sales + References No definition available. + Details
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Namespace Prefix: | jbss_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Product type reporting Information. + References No definition available. + Details
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Namespace Prefix: | jbss_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Data Type: | na
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