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Distribution Channel and Product Type Sales Mix - Schedule of Sales by Product Type as Percentage of Gross Sales (Detail)	3 Months Ended		6 Months Ended
	Dec. 25, 2014	Dec. 26, 2013	Dec. 25, 2014	Dec. 26, 2013
Product Type Reporting Information [Line Items]
Total	100.00%jbss_PercentageOfGrossProductSales	100.00%jbss_PercentageOfGrossProductSales	100.00%jbss_PercentageOfGrossProductSales	100.00%jbss_PercentageOfGrossProductSales
Peanuts [Member]
Product Type Reporting Information [Line Items]
Total	12.20%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_PeanutsMember	13.00%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_PeanutsMember	13.40%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_PeanutsMember	14.20%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_PeanutsMember
Pecans [Member]
Product Type Reporting Information [Line Items]
Total	18.90%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_PecansMember	19.40%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_PecansMember	15.50%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_PecansMember	16.70%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_PecansMember
Cashews & Mixed Nuts [Member]
Product Type Reporting Information [Line Items]
Total	21.40%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_CashewsAndMixedNutsMember	18.00%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_CashewsAndMixedNutsMember	21.40%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_CashewsAndMixedNutsMember	18.40%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_CashewsAndMixedNutsMember
Walnuts [Member]
Product Type Reporting Information [Line Items]
Total	12.20%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_WalnutsMember	13.60%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_WalnutsMember	11.80%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_WalnutsMember	12.50%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_WalnutsMember
Almonds [Member]
Product Type Reporting Information [Line Items]
Total	20.60%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_AlmondsMember	19.80%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_AlmondsMember	21.50%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_AlmondsMember	20.60%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_AlmondsMember
Trail & Snack Mixes [Member]
Product Type Reporting Information [Line Items]
Total	9.50%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_TrailAndSnackMixesMember	9.70%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_TrailAndSnackMixesMember	11.00%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_TrailAndSnackMixesMember	11.00%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_TrailAndSnackMixesMember
Other [Member]
Product Type Reporting Information [Line Items]
Total	5.20%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_OtherProductMember	6.50%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_OtherProductMember	5.40%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_OtherProductMember	6.60%jbss_PercentageOfGrossProductSales / us-gaap_ProductOrServiceAxis = jbss_OtherProductMember

X

- Definition

Percentage Of Gross Product Sales

+ References

No definition available.

+ Details

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X

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X

- Details

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X

- Details

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- Details

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- Details

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