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Distribution Channel and Product Type Sales Mix - Schedule of Sales by Product Type as Percentage of Gross Sales (Detail) | 12 Months Ended
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Jun. 25, 2015 | Jun. 26, 2014 | Jun. 27, 2013
Product Type Reporting Information [Line Items] |  |  |
Total | 100.00% | 100.00% | 100.00%
Peanuts [Member] |  |  |
Product Type Reporting Information [Line Items] |  |  |
Total | 13.70% | 15.10% | 18.20%
Pecans [Member] |  |  |
Product Type Reporting Information [Line Items] |  |  |
Total | 12.70% | 13.60% | 15.90%
Cashews & Mixed Nuts [Member] |  |  |
Product Type Reporting Information [Line Items] |  |  |
Total | 22.00% | 18.70% | 19.40%
Walnuts [Member] |  |  |
Product Type Reporting Information [Line Items] |  |  |
Total | 11.00% | 11.70% | 12.00%
Almonds [Member] |  |  |
Product Type Reporting Information [Line Items] |  |  |
Total | 23.40% | 22.30% | 16.50%
Trail & Snack Mixes [Member] |  |  |
Product Type Reporting Information [Line Items] |  |  |
Total | 12.00% | 11.40% | 11.00%
Other [Member] |  |  |
Product Type Reporting Information [Line Items] |  |  |
Total | 5.20% | 7.20% | 7.00%

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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
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- Details
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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: |
Period Type: |

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- Details
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Data Type: | na
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